mirror of
https://github.com/Hopiu/fabric.js.git
synced 2026-04-05 06:51:01 +00:00
12258 lines
No EOL
512 KiB
JavaScript
12258 lines
No EOL
512 KiB
JavaScript
var fabric = fabric || {
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version: "1.6.3"
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};
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if (typeof exports !== "undefined") {
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exports.fabric = fabric;
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}
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if (typeof document !== "undefined" && typeof window !== "undefined") {
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fabric.document = document;
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fabric.window = window;
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window.fabric = fabric;
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} else {
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fabric.document = require("jsdom").jsdom("<!DOCTYPE html><html><head></head><body></body></html>");
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if (fabric.document.createWindow) {
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fabric.window = fabric.document.createWindow();
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} else {
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fabric.window = fabric.document.parentWindow;
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}
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}
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fabric.isTouchSupported = "ontouchstart" in fabric.document.documentElement;
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fabric.isLikelyNode = typeof Buffer !== "undefined" && typeof window === "undefined";
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fabric.SHARED_ATTRIBUTES = [ "display", "transform", "fill", "fill-opacity", "fill-rule", "opacity", "stroke", "stroke-dasharray", "stroke-linecap", "stroke-linejoin", "stroke-miterlimit", "stroke-opacity", "stroke-width", "id" ];
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fabric.DPI = 96;
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fabric.reNum = "(?:[-+]?(?:\\d+|\\d*\\.\\d+)(?:e[-+]?\\d+)?)";
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fabric.fontPaths = {};
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fabric.charWidthsCache = {};
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fabric.devicePixelRatio = fabric.window.devicePixelRatio || fabric.window.webkitDevicePixelRatio || fabric.window.mozDevicePixelRatio || 1;
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(function() {
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function _removeEventListener(eventName, handler) {
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if (!this.__eventListeners[eventName]) {
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return;
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}
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var eventListener = this.__eventListeners[eventName];
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if (handler) {
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eventListener[eventListener.indexOf(handler)] = false;
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} else {
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fabric.util.array.fill(eventListener, false);
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}
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}
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function observe(eventName, handler) {
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if (!this.__eventListeners) {
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this.__eventListeners = {};
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}
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if (arguments.length === 1) {
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for (var prop in eventName) {
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this.on(prop, eventName[prop]);
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}
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} else {
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if (!this.__eventListeners[eventName]) {
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this.__eventListeners[eventName] = [];
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}
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this.__eventListeners[eventName].push(handler);
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}
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return this;
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}
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function stopObserving(eventName, handler) {
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if (!this.__eventListeners) {
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return;
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}
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if (arguments.length === 0) {
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for (eventName in this.__eventListeners) {
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_removeEventListener.call(this, eventName);
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}
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} else if (arguments.length === 1 && typeof arguments[0] === "object") {
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for (var prop in eventName) {
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_removeEventListener.call(this, prop, eventName[prop]);
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}
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} else {
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_removeEventListener.call(this, eventName, handler);
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}
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return this;
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}
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function fire(eventName, options) {
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if (!this.__eventListeners) {
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return;
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}
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var listenersForEvent = this.__eventListeners[eventName];
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if (!listenersForEvent) {
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return;
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}
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for (var i = 0, len = listenersForEvent.length; i < len; i++) {
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listenersForEvent[i] && listenersForEvent[i].call(this, options || {});
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}
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this.__eventListeners[eventName] = listenersForEvent.filter(function(value) {
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return value !== false;
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});
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return this;
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}
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fabric.Observable = {
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observe: observe,
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stopObserving: stopObserving,
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fire: fire,
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on: observe,
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off: stopObserving,
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trigger: fire
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};
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})();
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fabric.Collection = {
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add: function() {
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this._objects.push.apply(this._objects, arguments);
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for (var i = 0, length = arguments.length; i < length; i++) {
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this._onObjectAdded(arguments[i]);
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}
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this.renderOnAddRemove && this.renderAll();
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return this;
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},
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insertAt: function(object, index, nonSplicing) {
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var objects = this.getObjects();
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if (nonSplicing) {
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objects[index] = object;
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} else {
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objects.splice(index, 0, object);
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}
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this._onObjectAdded(object);
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this.renderOnAddRemove && this.renderAll();
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return this;
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},
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remove: function() {
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var objects = this.getObjects(), index;
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for (var i = 0, length = arguments.length; i < length; i++) {
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index = objects.indexOf(arguments[i]);
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if (index !== -1) {
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objects.splice(index, 1);
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this._onObjectRemoved(arguments[i]);
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}
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}
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this.renderOnAddRemove && this.renderAll();
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return this;
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},
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forEachObject: function(callback, context) {
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var objects = this.getObjects(), i = objects.length;
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while (i--) {
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callback.call(context, objects[i], i, objects);
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}
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return this;
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},
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getObjects: function(type) {
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if (typeof type === "undefined") {
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return this._objects;
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}
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return this._objects.filter(function(o) {
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return o.type === type;
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});
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},
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item: function(index) {
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return this.getObjects()[index];
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},
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isEmpty: function() {
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return this.getObjects().length === 0;
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},
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size: function() {
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return this.getObjects().length;
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},
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contains: function(object) {
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return this.getObjects().indexOf(object) > -1;
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},
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complexity: function() {
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return this.getObjects().reduce(function(memo, current) {
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memo += current.complexity ? current.complexity() : 0;
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return memo;
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}, 0);
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}
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};
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(function(global) {
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var sqrt = Math.sqrt, atan2 = Math.atan2, pow = Math.pow, abs = Math.abs, PiBy180 = Math.PI / 180;
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fabric.util = {
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removeFromArray: function(array, value) {
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var idx = array.indexOf(value);
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if (idx !== -1) {
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array.splice(idx, 1);
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}
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return array;
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},
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getRandomInt: function(min, max) {
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return Math.floor(Math.random() * (max - min + 1)) + min;
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},
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degreesToRadians: function(degrees) {
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return degrees * PiBy180;
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},
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radiansToDegrees: function(radians) {
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return radians / PiBy180;
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},
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rotatePoint: function(point, origin, radians) {
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point.subtractEquals(origin);
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var v = fabric.util.rotateVector(point, radians);
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return new fabric.Point(v.x, v.y).addEquals(origin);
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},
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rotateVector: function(vector, radians) {
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var sin = Math.sin(radians), cos = Math.cos(radians), rx = vector.x * cos - vector.y * sin, ry = vector.x * sin + vector.y * cos;
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return {
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x: rx,
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y: ry
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};
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},
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transformPoint: function(p, t, ignoreOffset) {
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if (ignoreOffset) {
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return new fabric.Point(t[0] * p.x + t[2] * p.y, t[1] * p.x + t[3] * p.y);
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}
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return new fabric.Point(t[0] * p.x + t[2] * p.y + t[4], t[1] * p.x + t[3] * p.y + t[5]);
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},
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makeBoundingBoxFromPoints: function(points) {
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var xPoints = [ points[0].x, points[1].x, points[2].x, points[3].x ], minX = fabric.util.array.min(xPoints), maxX = fabric.util.array.max(xPoints), width = Math.abs(minX - maxX), yPoints = [ points[0].y, points[1].y, points[2].y, points[3].y ], minY = fabric.util.array.min(yPoints), maxY = fabric.util.array.max(yPoints), height = Math.abs(minY - maxY);
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return {
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left: minX,
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top: minY,
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width: width,
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height: height
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};
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},
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invertTransform: function(t) {
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var a = 1 / (t[0] * t[3] - t[1] * t[2]), r = [ a * t[3], -a * t[1], -a * t[2], a * t[0] ], o = fabric.util.transformPoint({
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x: t[4],
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y: t[5]
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}, r, true);
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r[4] = -o.x;
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r[5] = -o.y;
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return r;
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},
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toFixed: function(number, fractionDigits) {
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return parseFloat(Number(number).toFixed(fractionDigits));
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},
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parseUnit: function(value, fontSize) {
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var unit = /\D{0,2}$/.exec(value), number = parseFloat(value);
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if (!fontSize) {
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fontSize = fabric.Text.DEFAULT_SVG_FONT_SIZE;
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}
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switch (unit[0]) {
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case "mm":
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return number * fabric.DPI / 25.4;
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case "cm":
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return number * fabric.DPI / 2.54;
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case "in":
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return number * fabric.DPI;
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case "pt":
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return number * fabric.DPI / 72;
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case "pc":
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return number * fabric.DPI / 72 * 12;
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case "em":
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return number * fontSize;
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default:
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return number;
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}
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},
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falseFunction: function() {
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return false;
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},
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getKlass: function(type, namespace) {
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type = fabric.util.string.camelize(type.charAt(0).toUpperCase() + type.slice(1));
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return fabric.util.resolveNamespace(namespace)[type];
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},
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resolveNamespace: function(namespace) {
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if (!namespace) {
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return fabric;
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}
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var parts = namespace.split("."), len = parts.length, obj = global || fabric.window;
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for (var i = 0; i < len; ++i) {
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obj = obj[parts[i]];
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}
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return obj;
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},
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loadImage: function(url, callback, context, crossOrigin) {
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if (!url) {
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callback && callback.call(context, url);
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return;
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}
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var img = fabric.util.createImage();
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img.onload = function() {
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callback && callback.call(context, img);
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img = img.onload = img.onerror = null;
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};
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img.onerror = function() {
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fabric.log("Error loading " + img.src);
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callback && callback.call(context, null, true);
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img = img.onload = img.onerror = null;
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};
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if (url.indexOf("data") !== 0 && crossOrigin) {
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img.crossOrigin = crossOrigin;
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}
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img.src = url;
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},
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enlivenObjects: function(objects, callback, namespace, reviver) {
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objects = objects || [];
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function onLoaded() {
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if (++numLoadedObjects === numTotalObjects) {
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callback && callback(enlivenedObjects);
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}
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}
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var enlivenedObjects = [], numLoadedObjects = 0, numTotalObjects = objects.length;
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if (!numTotalObjects) {
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callback && callback(enlivenedObjects);
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return;
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}
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objects.forEach(function(o, index) {
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if (!o || !o.type) {
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onLoaded();
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return;
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}
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var klass = fabric.util.getKlass(o.type, namespace);
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if (klass.async) {
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klass.fromObject(o, function(obj, error) {
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if (!error) {
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enlivenedObjects[index] = obj;
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reviver && reviver(o, enlivenedObjects[index]);
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}
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onLoaded();
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});
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} else {
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enlivenedObjects[index] = klass.fromObject(o);
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reviver && reviver(o, enlivenedObjects[index]);
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onLoaded();
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}
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});
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},
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groupSVGElements: function(elements, options, path) {
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var object;
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object = new fabric.PathGroup(elements, options);
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if (typeof path !== "undefined") {
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object.setSourcePath(path);
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}
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return object;
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},
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populateWithProperties: function(source, destination, properties) {
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if (properties && Object.prototype.toString.call(properties) === "[object Array]") {
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for (var i = 0, len = properties.length; i < len; i++) {
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if (properties[i] in source) {
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destination[properties[i]] = source[properties[i]];
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}
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}
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}
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},
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drawDashedLine: function(ctx, x, y, x2, y2, da) {
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var dx = x2 - x, dy = y2 - y, len = sqrt(dx * dx + dy * dy), rot = atan2(dy, dx), dc = da.length, di = 0, draw = true;
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ctx.save();
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ctx.translate(x, y);
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ctx.moveTo(0, 0);
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ctx.rotate(rot);
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x = 0;
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while (len > x) {
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x += da[di++ % dc];
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if (x > len) {
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x = len;
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}
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ctx[draw ? "lineTo" : "moveTo"](x, 0);
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draw = !draw;
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}
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ctx.restore();
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},
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createCanvasElement: function(canvasEl) {
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canvasEl || (canvasEl = fabric.document.createElement("canvas"));
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if (!canvasEl.getContext && typeof G_vmlCanvasManager !== "undefined") {
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G_vmlCanvasManager.initElement(canvasEl);
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}
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return canvasEl;
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},
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createImage: function() {
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return fabric.isLikelyNode ? new (require("canvas").Image)() : fabric.document.createElement("img");
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},
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createAccessors: function(klass) {
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var proto = klass.prototype;
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for (var i = proto.stateProperties.length; i--; ) {
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var propName = proto.stateProperties[i], capitalizedPropName = propName.charAt(0).toUpperCase() + propName.slice(1), setterName = "set" + capitalizedPropName, getterName = "get" + capitalizedPropName;
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if (!proto[getterName]) {
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proto[getterName] = function(property) {
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return new Function('return this.get("' + property + '")');
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}(propName);
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}
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if (!proto[setterName]) {
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proto[setterName] = function(property) {
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return new Function("value", 'return this.set("' + property + '", value)');
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}(propName);
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}
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}
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},
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clipContext: function(receiver, ctx) {
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ctx.save();
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ctx.beginPath();
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receiver.clipTo(ctx);
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ctx.clip();
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},
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multiplyTransformMatrices: function(a, b, is2x2) {
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return [ a[0] * b[0] + a[2] * b[1], a[1] * b[0] + a[3] * b[1], a[0] * b[2] + a[2] * b[3], a[1] * b[2] + a[3] * b[3], is2x2 ? 0 : a[0] * b[4] + a[2] * b[5] + a[4], is2x2 ? 0 : a[1] * b[4] + a[3] * b[5] + a[5] ];
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},
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qrDecompose: function(a) {
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var angle = atan2(a[1], a[0]), denom = pow(a[0], 2) + pow(a[1], 2), scaleX = sqrt(denom), scaleY = (a[0] * a[3] - a[2] * a[1]) / scaleX, skewX = atan2(a[0] * a[2] + a[1] * a[3], denom);
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return {
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angle: angle / PiBy180,
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scaleX: scaleX,
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scaleY: scaleY,
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skewX: skewX / PiBy180,
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skewY: 0,
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translateX: a[4],
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translateY: a[5]
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};
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},
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customTransformMatrix: function(scaleX, scaleY, skewX) {
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var skewMatrixX = [ 1, 0, abs(Math.tan(skewX * PiBy180)), 1 ], scaleMatrix = [ abs(scaleX), 0, 0, abs(scaleY) ];
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return fabric.util.multiplyTransformMatrices(scaleMatrix, skewMatrixX, true);
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},
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resetObjectTransform: function(target) {
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target.scaleX = 1;
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target.scaleY = 1;
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target.skewX = 0;
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target.skewY = 0;
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target.flipX = false;
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target.flipY = false;
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target.setAngle(0);
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},
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getFunctionBody: function(fn) {
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return (String(fn).match(/function[^{]*\{([\s\S]*)\}/) || {})[1];
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},
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isTransparent: function(ctx, x, y, tolerance) {
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if (tolerance > 0) {
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if (x > tolerance) {
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x -= tolerance;
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} else {
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x = 0;
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}
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if (y > tolerance) {
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y -= tolerance;
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} else {
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y = 0;
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}
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}
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var _isTransparent = true, imageData = ctx.getImageData(x, y, tolerance * 2 || 1, tolerance * 2 || 1);
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for (var i = 3, l = imageData.data.length; i < l; i += 4) {
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var temp = imageData.data[i];
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_isTransparent = temp <= 0;
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if (_isTransparent === false) {
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break;
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}
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}
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imageData = null;
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return _isTransparent;
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},
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parsePreserveAspectRatioAttribute: function(attribute) {
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var meetOrSlice = "meet", alignX = "Mid", alignY = "Mid", aspectRatioAttrs = attribute.split(" "), align;
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if (aspectRatioAttrs && aspectRatioAttrs.length) {
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meetOrSlice = aspectRatioAttrs.pop();
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if (meetOrSlice !== "meet" && meetOrSlice !== "slice") {
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align = meetOrSlice;
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meetOrSlice = "meet";
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} else if (aspectRatioAttrs.length) {
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align = aspectRatioAttrs.pop();
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}
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}
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alignX = align !== "none" ? align.slice(1, 4) : "none";
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alignY = align !== "none" ? align.slice(5, 8) : "none";
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return {
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meetOrSlice: meetOrSlice,
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alignX: alignX,
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alignY: alignY
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};
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},
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clearFabricFontCache: function(fontFamily) {
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if (fabric.charWidthsCache[fontFamily]) {
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fabric.charWidthsCache[fontFamily] = {};
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}
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}
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};
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})(typeof exports !== "undefined" ? exports : this);
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(function() {
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var arcToSegmentsCache = {}, segmentToBezierCache = {}, boundsOfCurveCache = {}, _join = Array.prototype.join;
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function arcToSegments(toX, toY, rx, ry, large, sweep, rotateX) {
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var argsString = _join.call(arguments);
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if (arcToSegmentsCache[argsString]) {
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return arcToSegmentsCache[argsString];
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}
|
|
var PI = Math.PI, th = rotateX * PI / 180, sinTh = Math.sin(th), cosTh = Math.cos(th), fromX = 0, fromY = 0;
|
|
rx = Math.abs(rx);
|
|
ry = Math.abs(ry);
|
|
var px = -cosTh * toX * .5 - sinTh * toY * .5, py = -cosTh * toY * .5 + sinTh * toX * .5, rx2 = rx * rx, ry2 = ry * ry, py2 = py * py, px2 = px * px, pl = rx2 * ry2 - rx2 * py2 - ry2 * px2, root = 0;
|
|
if (pl < 0) {
|
|
var s = Math.sqrt(1 - pl / (rx2 * ry2));
|
|
rx *= s;
|
|
ry *= s;
|
|
} else {
|
|
root = (large === sweep ? -1 : 1) * Math.sqrt(pl / (rx2 * py2 + ry2 * px2));
|
|
}
|
|
var cx = root * rx * py / ry, cy = -root * ry * px / rx, cx1 = cosTh * cx - sinTh * cy + toX * .5, cy1 = sinTh * cx + cosTh * cy + toY * .5, mTheta = calcVectorAngle(1, 0, (px - cx) / rx, (py - cy) / ry), dtheta = calcVectorAngle((px - cx) / rx, (py - cy) / ry, (-px - cx) / rx, (-py - cy) / ry);
|
|
if (sweep === 0 && dtheta > 0) {
|
|
dtheta -= 2 * PI;
|
|
} else if (sweep === 1 && dtheta < 0) {
|
|
dtheta += 2 * PI;
|
|
}
|
|
var segments = Math.ceil(Math.abs(dtheta / PI * 2)), result = [], mDelta = dtheta / segments, mT = 8 / 3 * Math.sin(mDelta / 4) * Math.sin(mDelta / 4) / Math.sin(mDelta / 2), th3 = mTheta + mDelta;
|
|
for (var i = 0; i < segments; i++) {
|
|
result[i] = segmentToBezier(mTheta, th3, cosTh, sinTh, rx, ry, cx1, cy1, mT, fromX, fromY);
|
|
fromX = result[i][4];
|
|
fromY = result[i][5];
|
|
mTheta = th3;
|
|
th3 += mDelta;
|
|
}
|
|
arcToSegmentsCache[argsString] = result;
|
|
return result;
|
|
}
|
|
function segmentToBezier(th2, th3, cosTh, sinTh, rx, ry, cx1, cy1, mT, fromX, fromY) {
|
|
var argsString2 = _join.call(arguments);
|
|
if (segmentToBezierCache[argsString2]) {
|
|
return segmentToBezierCache[argsString2];
|
|
}
|
|
var costh2 = Math.cos(th2), sinth2 = Math.sin(th2), costh3 = Math.cos(th3), sinth3 = Math.sin(th3), toX = cosTh * rx * costh3 - sinTh * ry * sinth3 + cx1, toY = sinTh * rx * costh3 + cosTh * ry * sinth3 + cy1, cp1X = fromX + mT * (-cosTh * rx * sinth2 - sinTh * ry * costh2), cp1Y = fromY + mT * (-sinTh * rx * sinth2 + cosTh * ry * costh2), cp2X = toX + mT * (cosTh * rx * sinth3 + sinTh * ry * costh3), cp2Y = toY + mT * (sinTh * rx * sinth3 - cosTh * ry * costh3);
|
|
segmentToBezierCache[argsString2] = [ cp1X, cp1Y, cp2X, cp2Y, toX, toY ];
|
|
return segmentToBezierCache[argsString2];
|
|
}
|
|
function calcVectorAngle(ux, uy, vx, vy) {
|
|
var ta = Math.atan2(uy, ux), tb = Math.atan2(vy, vx);
|
|
if (tb >= ta) {
|
|
return tb - ta;
|
|
} else {
|
|
return 2 * Math.PI - (ta - tb);
|
|
}
|
|
}
|
|
fabric.util.drawArc = function(ctx, fx, fy, coords) {
|
|
var rx = coords[0], ry = coords[1], rot = coords[2], large = coords[3], sweep = coords[4], tx = coords[5], ty = coords[6], segs = [ [], [], [], [] ], segsNorm = arcToSegments(tx - fx, ty - fy, rx, ry, large, sweep, rot);
|
|
for (var i = 0, len = segsNorm.length; i < len; i++) {
|
|
segs[i][0] = segsNorm[i][0] + fx;
|
|
segs[i][1] = segsNorm[i][1] + fy;
|
|
segs[i][2] = segsNorm[i][2] + fx;
|
|
segs[i][3] = segsNorm[i][3] + fy;
|
|
segs[i][4] = segsNorm[i][4] + fx;
|
|
segs[i][5] = segsNorm[i][5] + fy;
|
|
ctx.bezierCurveTo.apply(ctx, segs[i]);
|
|
}
|
|
};
|
|
fabric.util.getBoundsOfArc = function(fx, fy, rx, ry, rot, large, sweep, tx, ty) {
|
|
var fromX = 0, fromY = 0, bound = [], bounds = [], segs = arcToSegments(tx - fx, ty - fy, rx, ry, large, sweep, rot), boundCopy = [ [], [] ];
|
|
for (var i = 0, len = segs.length; i < len; i++) {
|
|
bound = getBoundsOfCurve(fromX, fromY, segs[i][0], segs[i][1], segs[i][2], segs[i][3], segs[i][4], segs[i][5]);
|
|
boundCopy[0].x = bound[0].x + fx;
|
|
boundCopy[0].y = bound[0].y + fy;
|
|
boundCopy[1].x = bound[1].x + fx;
|
|
boundCopy[1].y = bound[1].y + fy;
|
|
bounds.push(boundCopy[0]);
|
|
bounds.push(boundCopy[1]);
|
|
fromX = segs[i][4];
|
|
fromY = segs[i][5];
|
|
}
|
|
return bounds;
|
|
};
|
|
function getBoundsOfCurve(x0, y0, x1, y1, x2, y2, x3, y3) {
|
|
var argsString = _join.call(arguments);
|
|
if (boundsOfCurveCache[argsString]) {
|
|
return boundsOfCurveCache[argsString];
|
|
}
|
|
var sqrt = Math.sqrt, min = Math.min, max = Math.max, abs = Math.abs, tvalues = [], bounds = [ [], [] ], a, b, c, t, t1, t2, b2ac, sqrtb2ac;
|
|
b = 6 * x0 - 12 * x1 + 6 * x2;
|
|
a = -3 * x0 + 9 * x1 - 9 * x2 + 3 * x3;
|
|
c = 3 * x1 - 3 * x0;
|
|
for (var i = 0; i < 2; ++i) {
|
|
if (i > 0) {
|
|
b = 6 * y0 - 12 * y1 + 6 * y2;
|
|
a = -3 * y0 + 9 * y1 - 9 * y2 + 3 * y3;
|
|
c = 3 * y1 - 3 * y0;
|
|
}
|
|
if (abs(a) < 1e-12) {
|
|
if (abs(b) < 1e-12) {
|
|
continue;
|
|
}
|
|
t = -c / b;
|
|
if (0 < t && t < 1) {
|
|
tvalues.push(t);
|
|
}
|
|
continue;
|
|
}
|
|
b2ac = b * b - 4 * c * a;
|
|
if (b2ac < 0) {
|
|
continue;
|
|
}
|
|
sqrtb2ac = sqrt(b2ac);
|
|
t1 = (-b + sqrtb2ac) / (2 * a);
|
|
if (0 < t1 && t1 < 1) {
|
|
tvalues.push(t1);
|
|
}
|
|
t2 = (-b - sqrtb2ac) / (2 * a);
|
|
if (0 < t2 && t2 < 1) {
|
|
tvalues.push(t2);
|
|
}
|
|
}
|
|
var x, y, j = tvalues.length, jlen = j, mt;
|
|
while (j--) {
|
|
t = tvalues[j];
|
|
mt = 1 - t;
|
|
x = mt * mt * mt * x0 + 3 * mt * mt * t * x1 + 3 * mt * t * t * x2 + t * t * t * x3;
|
|
bounds[0][j] = x;
|
|
y = mt * mt * mt * y0 + 3 * mt * mt * t * y1 + 3 * mt * t * t * y2 + t * t * t * y3;
|
|
bounds[1][j] = y;
|
|
}
|
|
bounds[0][jlen] = x0;
|
|
bounds[1][jlen] = y0;
|
|
bounds[0][jlen + 1] = x3;
|
|
bounds[1][jlen + 1] = y3;
|
|
var result = [ {
|
|
x: min.apply(null, bounds[0]),
|
|
y: min.apply(null, bounds[1])
|
|
}, {
|
|
x: max.apply(null, bounds[0]),
|
|
y: max.apply(null, bounds[1])
|
|
} ];
|
|
boundsOfCurveCache[argsString] = result;
|
|
return result;
|
|
}
|
|
fabric.util.getBoundsOfCurve = getBoundsOfCurve;
|
|
})();
|
|
|
|
(function() {
|
|
var slice = Array.prototype.slice;
|
|
if (!Array.prototype.indexOf) {
|
|
Array.prototype.indexOf = function(searchElement) {
|
|
if (this === void 0 || this === null) {
|
|
throw new TypeError();
|
|
}
|
|
var t = Object(this), len = t.length >>> 0;
|
|
if (len === 0) {
|
|
return -1;
|
|
}
|
|
var n = 0;
|
|
if (arguments.length > 0) {
|
|
n = Number(arguments[1]);
|
|
if (n !== n) {
|
|
n = 0;
|
|
} else if (n !== 0 && n !== Number.POSITIVE_INFINITY && n !== Number.NEGATIVE_INFINITY) {
|
|
n = (n > 0 || -1) * Math.floor(Math.abs(n));
|
|
}
|
|
}
|
|
if (n >= len) {
|
|
return -1;
|
|
}
|
|
var k = n >= 0 ? n : Math.max(len - Math.abs(n), 0);
|
|
for (;k < len; k++) {
|
|
if (k in t && t[k] === searchElement) {
|
|
return k;
|
|
}
|
|
}
|
|
return -1;
|
|
};
|
|
}
|
|
if (!Array.prototype.forEach) {
|
|
Array.prototype.forEach = function(fn, context) {
|
|
for (var i = 0, len = this.length >>> 0; i < len; i++) {
|
|
if (i in this) {
|
|
fn.call(context, this[i], i, this);
|
|
}
|
|
}
|
|
};
|
|
}
|
|
if (!Array.prototype.map) {
|
|
Array.prototype.map = function(fn, context) {
|
|
var result = [];
|
|
for (var i = 0, len = this.length >>> 0; i < len; i++) {
|
|
if (i in this) {
|
|
result[i] = fn.call(context, this[i], i, this);
|
|
}
|
|
}
|
|
return result;
|
|
};
|
|
}
|
|
if (!Array.prototype.every) {
|
|
Array.prototype.every = function(fn, context) {
|
|
for (var i = 0, len = this.length >>> 0; i < len; i++) {
|
|
if (i in this && !fn.call(context, this[i], i, this)) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
};
|
|
}
|
|
if (!Array.prototype.some) {
|
|
Array.prototype.some = function(fn, context) {
|
|
for (var i = 0, len = this.length >>> 0; i < len; i++) {
|
|
if (i in this && fn.call(context, this[i], i, this)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
};
|
|
}
|
|
if (!Array.prototype.filter) {
|
|
Array.prototype.filter = function(fn, context) {
|
|
var result = [], val;
|
|
for (var i = 0, len = this.length >>> 0; i < len; i++) {
|
|
if (i in this) {
|
|
val = this[i];
|
|
if (fn.call(context, val, i, this)) {
|
|
result.push(val);
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
};
|
|
}
|
|
if (!Array.prototype.reduce) {
|
|
Array.prototype.reduce = function(fn) {
|
|
var len = this.length >>> 0, i = 0, rv;
|
|
if (arguments.length > 1) {
|
|
rv = arguments[1];
|
|
} else {
|
|
do {
|
|
if (i in this) {
|
|
rv = this[i++];
|
|
break;
|
|
}
|
|
if (++i >= len) {
|
|
throw new TypeError();
|
|
}
|
|
} while (true);
|
|
}
|
|
for (;i < len; i++) {
|
|
if (i in this) {
|
|
rv = fn.call(null, rv, this[i], i, this);
|
|
}
|
|
}
|
|
return rv;
|
|
};
|
|
}
|
|
function invoke(array, method) {
|
|
var args = slice.call(arguments, 2), result = [];
|
|
for (var i = 0, len = array.length; i < len; i++) {
|
|
result[i] = args.length ? array[i][method].apply(array[i], args) : array[i][method].call(array[i]);
|
|
}
|
|
return result;
|
|
}
|
|
function max(array, byProperty) {
|
|
return find(array, byProperty, function(value1, value2) {
|
|
return value1 >= value2;
|
|
});
|
|
}
|
|
function min(array, byProperty) {
|
|
return find(array, byProperty, function(value1, value2) {
|
|
return value1 < value2;
|
|
});
|
|
}
|
|
function fill(array, value) {
|
|
var k = array.length;
|
|
while (k--) {
|
|
array[k] = value;
|
|
}
|
|
return array;
|
|
}
|
|
function find(array, byProperty, condition) {
|
|
if (!array || array.length === 0) {
|
|
return;
|
|
}
|
|
var i = array.length - 1, result = byProperty ? array[i][byProperty] : array[i];
|
|
if (byProperty) {
|
|
while (i--) {
|
|
if (condition(array[i][byProperty], result)) {
|
|
result = array[i][byProperty];
|
|
}
|
|
}
|
|
} else {
|
|
while (i--) {
|
|
if (condition(array[i], result)) {
|
|
result = array[i];
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
fabric.util.array = {
|
|
fill: fill,
|
|
invoke: invoke,
|
|
min: min,
|
|
max: max
|
|
};
|
|
})();
|
|
|
|
(function() {
|
|
function extend(destination, source) {
|
|
for (var property in source) {
|
|
destination[property] = source[property];
|
|
}
|
|
return destination;
|
|
}
|
|
function clone(object) {
|
|
return extend({}, object);
|
|
}
|
|
fabric.util.object = {
|
|
extend: extend,
|
|
clone: clone
|
|
};
|
|
})();
|
|
|
|
(function() {
|
|
if (!String.prototype.trim) {
|
|
String.prototype.trim = function() {
|
|
return this.replace(/^[\s\xA0]+/, "").replace(/[\s\xA0]+$/, "");
|
|
};
|
|
}
|
|
function camelize(string) {
|
|
return string.replace(/-+(.)?/g, function(match, character) {
|
|
return character ? character.toUpperCase() : "";
|
|
});
|
|
}
|
|
function capitalize(string, firstLetterOnly) {
|
|
return string.charAt(0).toUpperCase() + (firstLetterOnly ? string.slice(1) : string.slice(1).toLowerCase());
|
|
}
|
|
function escapeXml(string) {
|
|
return string.replace(/&/g, "&").replace(/"/g, """).replace(/'/g, "'").replace(/</g, "<").replace(/>/g, ">");
|
|
}
|
|
fabric.util.string = {
|
|
camelize: camelize,
|
|
capitalize: capitalize,
|
|
escapeXml: escapeXml
|
|
};
|
|
})();
|
|
|
|
(function() {
|
|
var slice = Array.prototype.slice, apply = Function.prototype.apply, Dummy = function() {};
|
|
if (!Function.prototype.bind) {
|
|
Function.prototype.bind = function(thisArg) {
|
|
var _this = this, args = slice.call(arguments, 1), bound;
|
|
if (args.length) {
|
|
bound = function() {
|
|
return apply.call(_this, this instanceof Dummy ? this : thisArg, args.concat(slice.call(arguments)));
|
|
};
|
|
} else {
|
|
bound = function() {
|
|
return apply.call(_this, this instanceof Dummy ? this : thisArg, arguments);
|
|
};
|
|
}
|
|
Dummy.prototype = this.prototype;
|
|
bound.prototype = new Dummy();
|
|
return bound;
|
|
};
|
|
}
|
|
})();
|
|
|
|
(function() {
|
|
var slice = Array.prototype.slice, emptyFunction = function() {}, IS_DONTENUM_BUGGY = function() {
|
|
for (var p in {
|
|
toString: 1
|
|
}) {
|
|
if (p === "toString") {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}(), addMethods = function(klass, source, parent) {
|
|
for (var property in source) {
|
|
if (property in klass.prototype && typeof klass.prototype[property] === "function" && (source[property] + "").indexOf("callSuper") > -1) {
|
|
klass.prototype[property] = function(property) {
|
|
return function() {
|
|
var superclass = this.constructor.superclass;
|
|
this.constructor.superclass = parent;
|
|
var returnValue = source[property].apply(this, arguments);
|
|
this.constructor.superclass = superclass;
|
|
if (property !== "initialize") {
|
|
return returnValue;
|
|
}
|
|
};
|
|
}(property);
|
|
} else {
|
|
klass.prototype[property] = source[property];
|
|
}
|
|
if (IS_DONTENUM_BUGGY) {
|
|
if (source.toString !== Object.prototype.toString) {
|
|
klass.prototype.toString = source.toString;
|
|
}
|
|
if (source.valueOf !== Object.prototype.valueOf) {
|
|
klass.prototype.valueOf = source.valueOf;
|
|
}
|
|
}
|
|
}
|
|
};
|
|
function Subclass() {}
|
|
function callSuper(methodName) {
|
|
var fn = this.constructor.superclass.prototype[methodName];
|
|
return arguments.length > 1 ? fn.apply(this, slice.call(arguments, 1)) : fn.call(this);
|
|
}
|
|
function createClass() {
|
|
var parent = null, properties = slice.call(arguments, 0);
|
|
if (typeof properties[0] === "function") {
|
|
parent = properties.shift();
|
|
}
|
|
function klass() {
|
|
this.initialize.apply(this, arguments);
|
|
}
|
|
klass.superclass = parent;
|
|
klass.subclasses = [];
|
|
if (parent) {
|
|
Subclass.prototype = parent.prototype;
|
|
klass.prototype = new Subclass();
|
|
parent.subclasses.push(klass);
|
|
}
|
|
for (var i = 0, length = properties.length; i < length; i++) {
|
|
addMethods(klass, properties[i], parent);
|
|
}
|
|
if (!klass.prototype.initialize) {
|
|
klass.prototype.initialize = emptyFunction;
|
|
}
|
|
klass.prototype.constructor = klass;
|
|
klass.prototype.callSuper = callSuper;
|
|
return klass;
|
|
}
|
|
fabric.util.createClass = createClass;
|
|
})();
|
|
|
|
(function() {
|
|
var unknown = "unknown";
|
|
function areHostMethods(object) {
|
|
var methodNames = Array.prototype.slice.call(arguments, 1), t, i, len = methodNames.length;
|
|
for (i = 0; i < len; i++) {
|
|
t = typeof object[methodNames[i]];
|
|
if (!/^(?:function|object|unknown)$/.test(t)) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
var getElement, setElement, getUniqueId = function() {
|
|
var uid = 0;
|
|
return function(element) {
|
|
return element.__uniqueID || (element.__uniqueID = "uniqueID__" + uid++);
|
|
};
|
|
}();
|
|
(function() {
|
|
var elements = {};
|
|
getElement = function(uid) {
|
|
return elements[uid];
|
|
};
|
|
setElement = function(uid, element) {
|
|
elements[uid] = element;
|
|
};
|
|
})();
|
|
function createListener(uid, handler) {
|
|
return {
|
|
handler: handler,
|
|
wrappedHandler: createWrappedHandler(uid, handler)
|
|
};
|
|
}
|
|
function createWrappedHandler(uid, handler) {
|
|
return function(e) {
|
|
handler.call(getElement(uid), e || fabric.window.event);
|
|
};
|
|
}
|
|
function createDispatcher(uid, eventName) {
|
|
return function(e) {
|
|
if (handlers[uid] && handlers[uid][eventName]) {
|
|
var handlersForEvent = handlers[uid][eventName];
|
|
for (var i = 0, len = handlersForEvent.length; i < len; i++) {
|
|
handlersForEvent[i].call(this, e || fabric.window.event);
|
|
}
|
|
}
|
|
};
|
|
}
|
|
var shouldUseAddListenerRemoveListener = areHostMethods(fabric.document.documentElement, "addEventListener", "removeEventListener") && areHostMethods(fabric.window, "addEventListener", "removeEventListener"), shouldUseAttachEventDetachEvent = areHostMethods(fabric.document.documentElement, "attachEvent", "detachEvent") && areHostMethods(fabric.window, "attachEvent", "detachEvent"), listeners = {}, handlers = {}, addListener, removeListener;
|
|
if (shouldUseAddListenerRemoveListener) {
|
|
addListener = function(element, eventName, handler) {
|
|
element.addEventListener(eventName, handler, false);
|
|
};
|
|
removeListener = function(element, eventName, handler) {
|
|
element.removeEventListener(eventName, handler, false);
|
|
};
|
|
} else if (shouldUseAttachEventDetachEvent) {
|
|
addListener = function(element, eventName, handler) {
|
|
var uid = getUniqueId(element);
|
|
setElement(uid, element);
|
|
if (!listeners[uid]) {
|
|
listeners[uid] = {};
|
|
}
|
|
if (!listeners[uid][eventName]) {
|
|
listeners[uid][eventName] = [];
|
|
}
|
|
var listener = createListener(uid, handler);
|
|
listeners[uid][eventName].push(listener);
|
|
element.attachEvent("on" + eventName, listener.wrappedHandler);
|
|
};
|
|
removeListener = function(element, eventName, handler) {
|
|
var uid = getUniqueId(element), listener;
|
|
if (listeners[uid] && listeners[uid][eventName]) {
|
|
for (var i = 0, len = listeners[uid][eventName].length; i < len; i++) {
|
|
listener = listeners[uid][eventName][i];
|
|
if (listener && listener.handler === handler) {
|
|
element.detachEvent("on" + eventName, listener.wrappedHandler);
|
|
listeners[uid][eventName][i] = null;
|
|
}
|
|
}
|
|
}
|
|
};
|
|
} else {
|
|
addListener = function(element, eventName, handler) {
|
|
var uid = getUniqueId(element);
|
|
if (!handlers[uid]) {
|
|
handlers[uid] = {};
|
|
}
|
|
if (!handlers[uid][eventName]) {
|
|
handlers[uid][eventName] = [];
|
|
var existingHandler = element["on" + eventName];
|
|
if (existingHandler) {
|
|
handlers[uid][eventName].push(existingHandler);
|
|
}
|
|
element["on" + eventName] = createDispatcher(uid, eventName);
|
|
}
|
|
handlers[uid][eventName].push(handler);
|
|
};
|
|
removeListener = function(element, eventName, handler) {
|
|
var uid = getUniqueId(element);
|
|
if (handlers[uid] && handlers[uid][eventName]) {
|
|
var handlersForEvent = handlers[uid][eventName];
|
|
for (var i = 0, len = handlersForEvent.length; i < len; i++) {
|
|
if (handlersForEvent[i] === handler) {
|
|
handlersForEvent.splice(i, 1);
|
|
}
|
|
}
|
|
}
|
|
};
|
|
}
|
|
fabric.util.addListener = addListener;
|
|
fabric.util.removeListener = removeListener;
|
|
function getPointer(event) {
|
|
event || (event = fabric.window.event);
|
|
var element = event.target || (typeof event.srcElement !== unknown ? event.srcElement : null), scroll = fabric.util.getScrollLeftTop(element);
|
|
return {
|
|
x: pointerX(event) + scroll.left,
|
|
y: pointerY(event) + scroll.top
|
|
};
|
|
}
|
|
var pointerX = function(event) {
|
|
return typeof event.clientX !== unknown ? event.clientX : 0;
|
|
}, pointerY = function(event) {
|
|
return typeof event.clientY !== unknown ? event.clientY : 0;
|
|
};
|
|
function _getPointer(event, pageProp, clientProp) {
|
|
var touchProp = event.type === "touchend" ? "changedTouches" : "touches";
|
|
return event[touchProp] && event[touchProp][0] ? event[touchProp][0][pageProp] - (event[touchProp][0][pageProp] - event[touchProp][0][clientProp]) || event[clientProp] : event[clientProp];
|
|
}
|
|
if (fabric.isTouchSupported) {
|
|
pointerX = function(event) {
|
|
return _getPointer(event, "pageX", "clientX");
|
|
};
|
|
pointerY = function(event) {
|
|
return _getPointer(event, "pageY", "clientY");
|
|
};
|
|
}
|
|
fabric.util.getPointer = getPointer;
|
|
fabric.util.object.extend(fabric.util, fabric.Observable);
|
|
})();
|
|
|
|
(function() {
|
|
function setStyle(element, styles) {
|
|
var elementStyle = element.style;
|
|
if (!elementStyle) {
|
|
return element;
|
|
}
|
|
if (typeof styles === "string") {
|
|
element.style.cssText += ";" + styles;
|
|
return styles.indexOf("opacity") > -1 ? setOpacity(element, styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
|
|
}
|
|
for (var property in styles) {
|
|
if (property === "opacity") {
|
|
setOpacity(element, styles[property]);
|
|
} else {
|
|
var normalizedProperty = property === "float" || property === "cssFloat" ? typeof elementStyle.styleFloat === "undefined" ? "cssFloat" : "styleFloat" : property;
|
|
elementStyle[normalizedProperty] = styles[property];
|
|
}
|
|
}
|
|
return element;
|
|
}
|
|
var parseEl = fabric.document.createElement("div"), supportsOpacity = typeof parseEl.style.opacity === "string", supportsFilters = typeof parseEl.style.filter === "string", reOpacity = /alpha\s*\(\s*opacity\s*=\s*([^\)]+)\)/, setOpacity = function(element) {
|
|
return element;
|
|
};
|
|
if (supportsOpacity) {
|
|
setOpacity = function(element, value) {
|
|
element.style.opacity = value;
|
|
return element;
|
|
};
|
|
} else if (supportsFilters) {
|
|
setOpacity = function(element, value) {
|
|
var es = element.style;
|
|
if (element.currentStyle && !element.currentStyle.hasLayout) {
|
|
es.zoom = 1;
|
|
}
|
|
if (reOpacity.test(es.filter)) {
|
|
value = value >= .9999 ? "" : "alpha(opacity=" + value * 100 + ")";
|
|
es.filter = es.filter.replace(reOpacity, value);
|
|
} else {
|
|
es.filter += " alpha(opacity=" + value * 100 + ")";
|
|
}
|
|
return element;
|
|
};
|
|
}
|
|
fabric.util.setStyle = setStyle;
|
|
})();
|
|
|
|
(function() {
|
|
var _slice = Array.prototype.slice;
|
|
function getById(id) {
|
|
return typeof id === "string" ? fabric.document.getElementById(id) : id;
|
|
}
|
|
var sliceCanConvertNodelists, toArray = function(arrayLike) {
|
|
return _slice.call(arrayLike, 0);
|
|
};
|
|
try {
|
|
sliceCanConvertNodelists = toArray(fabric.document.childNodes) instanceof Array;
|
|
} catch (err) {}
|
|
if (!sliceCanConvertNodelists) {
|
|
toArray = function(arrayLike) {
|
|
var arr = new Array(arrayLike.length), i = arrayLike.length;
|
|
while (i--) {
|
|
arr[i] = arrayLike[i];
|
|
}
|
|
return arr;
|
|
};
|
|
}
|
|
function makeElement(tagName, attributes) {
|
|
var el = fabric.document.createElement(tagName);
|
|
for (var prop in attributes) {
|
|
if (prop === "class") {
|
|
el.className = attributes[prop];
|
|
} else if (prop === "for") {
|
|
el.htmlFor = attributes[prop];
|
|
} else {
|
|
el.setAttribute(prop, attributes[prop]);
|
|
}
|
|
}
|
|
return el;
|
|
}
|
|
function addClass(element, className) {
|
|
if (element && (" " + element.className + " ").indexOf(" " + className + " ") === -1) {
|
|
element.className += (element.className ? " " : "") + className;
|
|
}
|
|
}
|
|
function wrapElement(element, wrapper, attributes) {
|
|
if (typeof wrapper === "string") {
|
|
wrapper = makeElement(wrapper, attributes);
|
|
}
|
|
if (element.parentNode) {
|
|
element.parentNode.replaceChild(wrapper, element);
|
|
}
|
|
wrapper.appendChild(element);
|
|
return wrapper;
|
|
}
|
|
function getScrollLeftTop(element) {
|
|
var left = 0, top = 0, docElement = fabric.document.documentElement, body = fabric.document.body || {
|
|
scrollLeft: 0,
|
|
scrollTop: 0
|
|
};
|
|
while (element && (element.parentNode || element.host)) {
|
|
element = element.parentNode || element.host;
|
|
if (element === fabric.document) {
|
|
left = body.scrollLeft || docElement.scrollLeft || 0;
|
|
top = body.scrollTop || docElement.scrollTop || 0;
|
|
} else {
|
|
left += element.scrollLeft || 0;
|
|
top += element.scrollTop || 0;
|
|
}
|
|
if (element.nodeType === 1 && fabric.util.getElementStyle(element, "position") === "fixed") {
|
|
break;
|
|
}
|
|
}
|
|
return {
|
|
left: left,
|
|
top: top
|
|
};
|
|
}
|
|
function getElementOffset(element) {
|
|
var docElem, doc = element && element.ownerDocument, box = {
|
|
left: 0,
|
|
top: 0
|
|
}, offset = {
|
|
left: 0,
|
|
top: 0
|
|
}, scrollLeftTop, offsetAttributes = {
|
|
borderLeftWidth: "left",
|
|
borderTopWidth: "top",
|
|
paddingLeft: "left",
|
|
paddingTop: "top"
|
|
};
|
|
if (!doc) {
|
|
return offset;
|
|
}
|
|
for (var attr in offsetAttributes) {
|
|
offset[offsetAttributes[attr]] += parseInt(getElementStyle(element, attr), 10) || 0;
|
|
}
|
|
docElem = doc.documentElement;
|
|
if (typeof element.getBoundingClientRect !== "undefined") {
|
|
box = element.getBoundingClientRect();
|
|
}
|
|
scrollLeftTop = getScrollLeftTop(element);
|
|
return {
|
|
left: box.left + scrollLeftTop.left - (docElem.clientLeft || 0) + offset.left,
|
|
top: box.top + scrollLeftTop.top - (docElem.clientTop || 0) + offset.top
|
|
};
|
|
}
|
|
var getElementStyle;
|
|
if (fabric.document.defaultView && fabric.document.defaultView.getComputedStyle) {
|
|
getElementStyle = function(element, attr) {
|
|
var style = fabric.document.defaultView.getComputedStyle(element, null);
|
|
return style ? style[attr] : undefined;
|
|
};
|
|
} else {
|
|
getElementStyle = function(element, attr) {
|
|
var value = element.style[attr];
|
|
if (!value && element.currentStyle) {
|
|
value = element.currentStyle[attr];
|
|
}
|
|
return value;
|
|
};
|
|
}
|
|
(function() {
|
|
var style = fabric.document.documentElement.style, selectProp = "userSelect" in style ? "userSelect" : "MozUserSelect" in style ? "MozUserSelect" : "WebkitUserSelect" in style ? "WebkitUserSelect" : "KhtmlUserSelect" in style ? "KhtmlUserSelect" : "";
|
|
function makeElementUnselectable(element) {
|
|
if (typeof element.onselectstart !== "undefined") {
|
|
element.onselectstart = fabric.util.falseFunction;
|
|
}
|
|
if (selectProp) {
|
|
element.style[selectProp] = "none";
|
|
} else if (typeof element.unselectable === "string") {
|
|
element.unselectable = "on";
|
|
}
|
|
return element;
|
|
}
|
|
function makeElementSelectable(element) {
|
|
if (typeof element.onselectstart !== "undefined") {
|
|
element.onselectstart = null;
|
|
}
|
|
if (selectProp) {
|
|
element.style[selectProp] = "";
|
|
} else if (typeof element.unselectable === "string") {
|
|
element.unselectable = "";
|
|
}
|
|
return element;
|
|
}
|
|
fabric.util.makeElementUnselectable = makeElementUnselectable;
|
|
fabric.util.makeElementSelectable = makeElementSelectable;
|
|
})();
|
|
(function() {
|
|
function getScript(url, callback) {
|
|
var headEl = fabric.document.getElementsByTagName("head")[0], scriptEl = fabric.document.createElement("script"), loading = true;
|
|
scriptEl.onload = scriptEl.onreadystatechange = function(e) {
|
|
if (loading) {
|
|
if (typeof this.readyState === "string" && this.readyState !== "loaded" && this.readyState !== "complete") {
|
|
return;
|
|
}
|
|
loading = false;
|
|
callback(e || fabric.window.event);
|
|
scriptEl = scriptEl.onload = scriptEl.onreadystatechange = null;
|
|
}
|
|
};
|
|
scriptEl.src = url;
|
|
headEl.appendChild(scriptEl);
|
|
}
|
|
fabric.util.getScript = getScript;
|
|
})();
|
|
fabric.util.getById = getById;
|
|
fabric.util.toArray = toArray;
|
|
fabric.util.makeElement = makeElement;
|
|
fabric.util.addClass = addClass;
|
|
fabric.util.wrapElement = wrapElement;
|
|
fabric.util.getScrollLeftTop = getScrollLeftTop;
|
|
fabric.util.getElementOffset = getElementOffset;
|
|
fabric.util.getElementStyle = getElementStyle;
|
|
})();
|
|
|
|
(function() {
|
|
function addParamToUrl(url, param) {
|
|
return url + (/\?/.test(url) ? "&" : "?") + param;
|
|
}
|
|
var makeXHR = function() {
|
|
var factories = [ function() {
|
|
return new ActiveXObject("Microsoft.XMLHTTP");
|
|
}, function() {
|
|
return new ActiveXObject("Msxml2.XMLHTTP");
|
|
}, function() {
|
|
return new ActiveXObject("Msxml2.XMLHTTP.3.0");
|
|
}, function() {
|
|
return new XMLHttpRequest();
|
|
} ];
|
|
for (var i = factories.length; i--; ) {
|
|
try {
|
|
var req = factories[i]();
|
|
if (req) {
|
|
return factories[i];
|
|
}
|
|
} catch (err) {}
|
|
}
|
|
}();
|
|
function emptyFn() {}
|
|
function request(url, options) {
|
|
options || (options = {});
|
|
var method = options.method ? options.method.toUpperCase() : "GET", onComplete = options.onComplete || function() {}, xhr = makeXHR(), body;
|
|
xhr.onreadystatechange = function() {
|
|
if (xhr.readyState === 4) {
|
|
onComplete(xhr);
|
|
xhr.onreadystatechange = emptyFn;
|
|
}
|
|
};
|
|
if (method === "GET") {
|
|
body = null;
|
|
if (typeof options.parameters === "string") {
|
|
url = addParamToUrl(url, options.parameters);
|
|
}
|
|
}
|
|
xhr.open(method, url, true);
|
|
if (method === "POST" || method === "PUT") {
|
|
xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
|
|
}
|
|
xhr.send(body);
|
|
return xhr;
|
|
}
|
|
fabric.util.request = request;
|
|
})();
|
|
|
|
fabric.log = function() {};
|
|
|
|
fabric.warn = function() {};
|
|
|
|
if (typeof console !== "undefined") {
|
|
[ "log", "warn" ].forEach(function(methodName) {
|
|
if (typeof console[methodName] !== "undefined" && typeof console[methodName].apply === "function") {
|
|
fabric[methodName] = function() {
|
|
return console[methodName].apply(console, arguments);
|
|
};
|
|
}
|
|
});
|
|
}
|
|
|
|
(function() {
|
|
function animate(options) {
|
|
requestAnimFrame(function(timestamp) {
|
|
options || (options = {});
|
|
var start = timestamp || +new Date(), duration = options.duration || 500, finish = start + duration, time, onChange = options.onChange || function() {}, abort = options.abort || function() {
|
|
return false;
|
|
}, easing = options.easing || function(t, b, c, d) {
|
|
return -c * Math.cos(t / d * (Math.PI / 2)) + c + b;
|
|
}, startValue = "startValue" in options ? options.startValue : 0, endValue = "endValue" in options ? options.endValue : 100, byValue = options.byValue || endValue - startValue;
|
|
options.onStart && options.onStart();
|
|
(function tick(ticktime) {
|
|
time = ticktime || +new Date();
|
|
var currentTime = time > finish ? duration : time - start;
|
|
if (abort()) {
|
|
options.onComplete && options.onComplete();
|
|
return;
|
|
}
|
|
onChange(easing(currentTime, startValue, byValue, duration));
|
|
if (time > finish) {
|
|
options.onComplete && options.onComplete();
|
|
return;
|
|
}
|
|
requestAnimFrame(tick);
|
|
})(start);
|
|
});
|
|
}
|
|
var _requestAnimFrame = fabric.window.requestAnimationFrame || fabric.window.webkitRequestAnimationFrame || fabric.window.mozRequestAnimationFrame || fabric.window.oRequestAnimationFrame || fabric.window.msRequestAnimationFrame || function(callback) {
|
|
fabric.window.setTimeout(callback, 1e3 / 60);
|
|
};
|
|
function requestAnimFrame() {
|
|
return _requestAnimFrame.apply(fabric.window, arguments);
|
|
}
|
|
fabric.util.animate = animate;
|
|
fabric.util.requestAnimFrame = requestAnimFrame;
|
|
})();
|
|
|
|
(function() {
|
|
function normalize(a, c, p, s) {
|
|
if (a < Math.abs(c)) {
|
|
a = c;
|
|
s = p / 4;
|
|
} else {
|
|
if (c === 0 && a === 0) {
|
|
s = p / (2 * Math.PI) * Math.asin(1);
|
|
} else {
|
|
s = p / (2 * Math.PI) * Math.asin(c / a);
|
|
}
|
|
}
|
|
return {
|
|
a: a,
|
|
c: c,
|
|
p: p,
|
|
s: s
|
|
};
|
|
}
|
|
function elastic(opts, t, d) {
|
|
return opts.a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * d - opts.s) * (2 * Math.PI) / opts.p);
|
|
}
|
|
function easeOutCubic(t, b, c, d) {
|
|
return c * ((t = t / d - 1) * t * t + 1) + b;
|
|
}
|
|
function easeInOutCubic(t, b, c, d) {
|
|
t /= d / 2;
|
|
if (t < 1) {
|
|
return c / 2 * t * t * t + b;
|
|
}
|
|
return c / 2 * ((t -= 2) * t * t + 2) + b;
|
|
}
|
|
function easeInQuart(t, b, c, d) {
|
|
return c * (t /= d) * t * t * t + b;
|
|
}
|
|
function easeOutQuart(t, b, c, d) {
|
|
return -c * ((t = t / d - 1) * t * t * t - 1) + b;
|
|
}
|
|
function easeInOutQuart(t, b, c, d) {
|
|
t /= d / 2;
|
|
if (t < 1) {
|
|
return c / 2 * t * t * t * t + b;
|
|
}
|
|
return -c / 2 * ((t -= 2) * t * t * t - 2) + b;
|
|
}
|
|
function easeInQuint(t, b, c, d) {
|
|
return c * (t /= d) * t * t * t * t + b;
|
|
}
|
|
function easeOutQuint(t, b, c, d) {
|
|
return c * ((t = t / d - 1) * t * t * t * t + 1) + b;
|
|
}
|
|
function easeInOutQuint(t, b, c, d) {
|
|
t /= d / 2;
|
|
if (t < 1) {
|
|
return c / 2 * t * t * t * t * t + b;
|
|
}
|
|
return c / 2 * ((t -= 2) * t * t * t * t + 2) + b;
|
|
}
|
|
function easeInSine(t, b, c, d) {
|
|
return -c * Math.cos(t / d * (Math.PI / 2)) + c + b;
|
|
}
|
|
function easeOutSine(t, b, c, d) {
|
|
return c * Math.sin(t / d * (Math.PI / 2)) + b;
|
|
}
|
|
function easeInOutSine(t, b, c, d) {
|
|
return -c / 2 * (Math.cos(Math.PI * t / d) - 1) + b;
|
|
}
|
|
function easeInExpo(t, b, c, d) {
|
|
return t === 0 ? b : c * Math.pow(2, 10 * (t / d - 1)) + b;
|
|
}
|
|
function easeOutExpo(t, b, c, d) {
|
|
return t === d ? b + c : c * (-Math.pow(2, -10 * t / d) + 1) + b;
|
|
}
|
|
function easeInOutExpo(t, b, c, d) {
|
|
if (t === 0) {
|
|
return b;
|
|
}
|
|
if (t === d) {
|
|
return b + c;
|
|
}
|
|
t /= d / 2;
|
|
if (t < 1) {
|
|
return c / 2 * Math.pow(2, 10 * (t - 1)) + b;
|
|
}
|
|
return c / 2 * (-Math.pow(2, -10 * --t) + 2) + b;
|
|
}
|
|
function easeInCirc(t, b, c, d) {
|
|
return -c * (Math.sqrt(1 - (t /= d) * t) - 1) + b;
|
|
}
|
|
function easeOutCirc(t, b, c, d) {
|
|
return c * Math.sqrt(1 - (t = t / d - 1) * t) + b;
|
|
}
|
|
function easeInOutCirc(t, b, c, d) {
|
|
t /= d / 2;
|
|
if (t < 1) {
|
|
return -c / 2 * (Math.sqrt(1 - t * t) - 1) + b;
|
|
}
|
|
return c / 2 * (Math.sqrt(1 - (t -= 2) * t) + 1) + b;
|
|
}
|
|
function easeInElastic(t, b, c, d) {
|
|
var s = 1.70158, p = 0, a = c;
|
|
if (t === 0) {
|
|
return b;
|
|
}
|
|
t /= d;
|
|
if (t === 1) {
|
|
return b + c;
|
|
}
|
|
if (!p) {
|
|
p = d * .3;
|
|
}
|
|
var opts = normalize(a, c, p, s);
|
|
return -elastic(opts, t, d) + b;
|
|
}
|
|
function easeOutElastic(t, b, c, d) {
|
|
var s = 1.70158, p = 0, a = c;
|
|
if (t === 0) {
|
|
return b;
|
|
}
|
|
t /= d;
|
|
if (t === 1) {
|
|
return b + c;
|
|
}
|
|
if (!p) {
|
|
p = d * .3;
|
|
}
|
|
var opts = normalize(a, c, p, s);
|
|
return opts.a * Math.pow(2, -10 * t) * Math.sin((t * d - opts.s) * (2 * Math.PI) / opts.p) + opts.c + b;
|
|
}
|
|
function easeInOutElastic(t, b, c, d) {
|
|
var s = 1.70158, p = 0, a = c;
|
|
if (t === 0) {
|
|
return b;
|
|
}
|
|
t /= d / 2;
|
|
if (t === 2) {
|
|
return b + c;
|
|
}
|
|
if (!p) {
|
|
p = d * (.3 * 1.5);
|
|
}
|
|
var opts = normalize(a, c, p, s);
|
|
if (t < 1) {
|
|
return -.5 * elastic(opts, t, d) + b;
|
|
}
|
|
return opts.a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t * d - opts.s) * (2 * Math.PI) / opts.p) * .5 + opts.c + b;
|
|
}
|
|
function easeInBack(t, b, c, d, s) {
|
|
if (s === undefined) {
|
|
s = 1.70158;
|
|
}
|
|
return c * (t /= d) * t * ((s + 1) * t - s) + b;
|
|
}
|
|
function easeOutBack(t, b, c, d, s) {
|
|
if (s === undefined) {
|
|
s = 1.70158;
|
|
}
|
|
return c * ((t = t / d - 1) * t * ((s + 1) * t + s) + 1) + b;
|
|
}
|
|
function easeInOutBack(t, b, c, d, s) {
|
|
if (s === undefined) {
|
|
s = 1.70158;
|
|
}
|
|
t /= d / 2;
|
|
if (t < 1) {
|
|
return c / 2 * (t * t * (((s *= 1.525) + 1) * t - s)) + b;
|
|
}
|
|
return c / 2 * ((t -= 2) * t * (((s *= 1.525) + 1) * t + s) + 2) + b;
|
|
}
|
|
function easeInBounce(t, b, c, d) {
|
|
return c - easeOutBounce(d - t, 0, c, d) + b;
|
|
}
|
|
function easeOutBounce(t, b, c, d) {
|
|
if ((t /= d) < 1 / 2.75) {
|
|
return c * (7.5625 * t * t) + b;
|
|
} else if (t < 2 / 2.75) {
|
|
return c * (7.5625 * (t -= 1.5 / 2.75) * t + .75) + b;
|
|
} else if (t < 2.5 / 2.75) {
|
|
return c * (7.5625 * (t -= 2.25 / 2.75) * t + .9375) + b;
|
|
} else {
|
|
return c * (7.5625 * (t -= 2.625 / 2.75) * t + .984375) + b;
|
|
}
|
|
}
|
|
function easeInOutBounce(t, b, c, d) {
|
|
if (t < d / 2) {
|
|
return easeInBounce(t * 2, 0, c, d) * .5 + b;
|
|
}
|
|
return easeOutBounce(t * 2 - d, 0, c, d) * .5 + c * .5 + b;
|
|
}
|
|
fabric.util.ease = {
|
|
easeInQuad: function(t, b, c, d) {
|
|
return c * (t /= d) * t + b;
|
|
},
|
|
easeOutQuad: function(t, b, c, d) {
|
|
return -c * (t /= d) * (t - 2) + b;
|
|
},
|
|
easeInOutQuad: function(t, b, c, d) {
|
|
t /= d / 2;
|
|
if (t < 1) {
|
|
return c / 2 * t * t + b;
|
|
}
|
|
return -c / 2 * (--t * (t - 2) - 1) + b;
|
|
},
|
|
easeInCubic: function(t, b, c, d) {
|
|
return c * (t /= d) * t * t + b;
|
|
},
|
|
easeOutCubic: easeOutCubic,
|
|
easeInOutCubic: easeInOutCubic,
|
|
easeInQuart: easeInQuart,
|
|
easeOutQuart: easeOutQuart,
|
|
easeInOutQuart: easeInOutQuart,
|
|
easeInQuint: easeInQuint,
|
|
easeOutQuint: easeOutQuint,
|
|
easeInOutQuint: easeInOutQuint,
|
|
easeInSine: easeInSine,
|
|
easeOutSine: easeOutSine,
|
|
easeInOutSine: easeInOutSine,
|
|
easeInExpo: easeInExpo,
|
|
easeOutExpo: easeOutExpo,
|
|
easeInOutExpo: easeInOutExpo,
|
|
easeInCirc: easeInCirc,
|
|
easeOutCirc: easeOutCirc,
|
|
easeInOutCirc: easeInOutCirc,
|
|
easeInElastic: easeInElastic,
|
|
easeOutElastic: easeOutElastic,
|
|
easeInOutElastic: easeInOutElastic,
|
|
easeInBack: easeInBack,
|
|
easeOutBack: easeOutBack,
|
|
easeInOutBack: easeInOutBack,
|
|
easeInBounce: easeInBounce,
|
|
easeOutBounce: easeOutBounce,
|
|
easeInOutBounce: easeInOutBounce
|
|
};
|
|
})();
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), extend = fabric.util.object.extend, capitalize = fabric.util.string.capitalize, clone = fabric.util.object.clone, toFixed = fabric.util.toFixed, parseUnit = fabric.util.parseUnit, multiplyTransformMatrices = fabric.util.multiplyTransformMatrices, reAllowedSVGTagNames = /^(path|circle|polygon|polyline|ellipse|rect|line|image|text)$/i, reViewBoxTagNames = /^(symbol|image|marker|pattern|view|svg)$/i, reNotAllowedAncestors = /^(?:pattern|defs|symbol|metadata)$/i, reAllowedParents = /^(symbol|g|a|svg)$/i, attributesMap = {
|
|
cx: "left",
|
|
x: "left",
|
|
r: "radius",
|
|
cy: "top",
|
|
y: "top",
|
|
display: "visible",
|
|
visibility: "visible",
|
|
transform: "transformMatrix",
|
|
"fill-opacity": "fillOpacity",
|
|
"fill-rule": "fillRule",
|
|
"font-family": "fontFamily",
|
|
"font-size": "fontSize",
|
|
"font-style": "fontStyle",
|
|
"font-weight": "fontWeight",
|
|
"stroke-dasharray": "strokeDashArray",
|
|
"stroke-linecap": "strokeLineCap",
|
|
"stroke-linejoin": "strokeLineJoin",
|
|
"stroke-miterlimit": "strokeMiterLimit",
|
|
"stroke-opacity": "strokeOpacity",
|
|
"stroke-width": "strokeWidth",
|
|
"text-decoration": "textDecoration",
|
|
"text-anchor": "originX"
|
|
}, colorAttributes = {
|
|
stroke: "strokeOpacity",
|
|
fill: "fillOpacity"
|
|
};
|
|
fabric.cssRules = {};
|
|
fabric.gradientDefs = {};
|
|
function normalizeAttr(attr) {
|
|
if (attr in attributesMap) {
|
|
return attributesMap[attr];
|
|
}
|
|
return attr;
|
|
}
|
|
function normalizeValue(attr, value, parentAttributes, fontSize) {
|
|
var isArray = Object.prototype.toString.call(value) === "[object Array]", parsed;
|
|
if ((attr === "fill" || attr === "stroke") && value === "none") {
|
|
value = "";
|
|
} else if (attr === "strokeDashArray") {
|
|
value = value.replace(/,/g, " ").split(/\s+/).map(function(n) {
|
|
return parseFloat(n);
|
|
});
|
|
} else if (attr === "transformMatrix") {
|
|
if (parentAttributes && parentAttributes.transformMatrix) {
|
|
value = multiplyTransformMatrices(parentAttributes.transformMatrix, fabric.parseTransformAttribute(value));
|
|
} else {
|
|
value = fabric.parseTransformAttribute(value);
|
|
}
|
|
} else if (attr === "visible") {
|
|
value = value === "none" || value === "hidden" ? false : true;
|
|
if (parentAttributes && parentAttributes.visible === false) {
|
|
value = false;
|
|
}
|
|
} else if (attr === "originX") {
|
|
value = value === "start" ? "left" : value === "end" ? "right" : "center";
|
|
} else {
|
|
parsed = isArray ? value.map(parseUnit) : parseUnit(value, fontSize);
|
|
}
|
|
return !isArray && isNaN(parsed) ? value : parsed;
|
|
}
|
|
function _setStrokeFillOpacity(attributes) {
|
|
for (var attr in colorAttributes) {
|
|
if (typeof attributes[colorAttributes[attr]] === "undefined" || attributes[attr] === "") {
|
|
continue;
|
|
}
|
|
if (typeof attributes[attr] === "undefined") {
|
|
if (!fabric.Object.prototype[attr]) {
|
|
continue;
|
|
}
|
|
attributes[attr] = fabric.Object.prototype[attr];
|
|
}
|
|
if (attributes[attr].indexOf("url(") === 0) {
|
|
continue;
|
|
}
|
|
var color = new fabric.Color(attributes[attr]);
|
|
attributes[attr] = color.setAlpha(toFixed(color.getAlpha() * attributes[colorAttributes[attr]], 2)).toRgba();
|
|
}
|
|
return attributes;
|
|
}
|
|
function _getMultipleNodes(doc, nodeNames) {
|
|
var nodeName, nodeArray = [], nodeList;
|
|
for (var i = 0; i < nodeNames.length; i++) {
|
|
nodeName = nodeNames[i];
|
|
nodeList = doc.getElementsByTagName(nodeName);
|
|
nodeArray = nodeArray.concat(Array.prototype.slice.call(nodeList));
|
|
}
|
|
return nodeArray;
|
|
}
|
|
fabric.parseTransformAttribute = function() {
|
|
function rotateMatrix(matrix, args) {
|
|
var angle = args[0], x = args.length === 3 ? args[1] : 0, y = args.length === 3 ? args[2] : 0;
|
|
matrix[0] = Math.cos(angle);
|
|
matrix[1] = Math.sin(angle);
|
|
matrix[2] = -Math.sin(angle);
|
|
matrix[3] = Math.cos(angle);
|
|
matrix[4] = x - (matrix[0] * x + matrix[2] * y);
|
|
matrix[5] = y - (matrix[1] * x + matrix[3] * y);
|
|
}
|
|
function scaleMatrix(matrix, args) {
|
|
var multiplierX = args[0], multiplierY = args.length === 2 ? args[1] : args[0];
|
|
matrix[0] = multiplierX;
|
|
matrix[3] = multiplierY;
|
|
}
|
|
function skewXMatrix(matrix, args) {
|
|
matrix[2] = Math.tan(fabric.util.degreesToRadians(args[0]));
|
|
}
|
|
function skewYMatrix(matrix, args) {
|
|
matrix[1] = Math.tan(fabric.util.degreesToRadians(args[0]));
|
|
}
|
|
function translateMatrix(matrix, args) {
|
|
matrix[4] = args[0];
|
|
if (args.length === 2) {
|
|
matrix[5] = args[1];
|
|
}
|
|
}
|
|
var iMatrix = [ 1, 0, 0, 1, 0, 0 ], number = fabric.reNum, commaWsp = "(?:\\s+,?\\s*|,\\s*)", skewX = "(?:(skewX)\\s*\\(\\s*(" + number + ")\\s*\\))", skewY = "(?:(skewY)\\s*\\(\\s*(" + number + ")\\s*\\))", rotate = "(?:(rotate)\\s*\\(\\s*(" + number + ")(?:" + commaWsp + "(" + number + ")" + commaWsp + "(" + number + "))?\\s*\\))", scale = "(?:(scale)\\s*\\(\\s*(" + number + ")(?:" + commaWsp + "(" + number + "))?\\s*\\))", translate = "(?:(translate)\\s*\\(\\s*(" + number + ")(?:" + commaWsp + "(" + number + "))?\\s*\\))", matrix = "(?:(matrix)\\s*\\(\\s*" + "(" + number + ")" + commaWsp + "(" + number + ")" + commaWsp + "(" + number + ")" + commaWsp + "(" + number + ")" + commaWsp + "(" + number + ")" + commaWsp + "(" + number + ")" + "\\s*\\))", transform = "(?:" + matrix + "|" + translate + "|" + scale + "|" + rotate + "|" + skewX + "|" + skewY + ")", transforms = "(?:" + transform + "(?:" + commaWsp + "*" + transform + ")*" + ")", transformList = "^\\s*(?:" + transforms + "?)\\s*$", reTransformList = new RegExp(transformList), reTransform = new RegExp(transform, "g");
|
|
return function(attributeValue) {
|
|
var matrix = iMatrix.concat(), matrices = [];
|
|
if (!attributeValue || attributeValue && !reTransformList.test(attributeValue)) {
|
|
return matrix;
|
|
}
|
|
attributeValue.replace(reTransform, function(match) {
|
|
var m = new RegExp(transform).exec(match).filter(function(match) {
|
|
return match !== "" && match != null;
|
|
}), operation = m[1], args = m.slice(2).map(parseFloat);
|
|
switch (operation) {
|
|
case "translate":
|
|
translateMatrix(matrix, args);
|
|
break;
|
|
|
|
case "rotate":
|
|
args[0] = fabric.util.degreesToRadians(args[0]);
|
|
rotateMatrix(matrix, args);
|
|
break;
|
|
|
|
case "scale":
|
|
scaleMatrix(matrix, args);
|
|
break;
|
|
|
|
case "skewX":
|
|
skewXMatrix(matrix, args);
|
|
break;
|
|
|
|
case "skewY":
|
|
skewYMatrix(matrix, args);
|
|
break;
|
|
|
|
case "matrix":
|
|
matrix = args;
|
|
break;
|
|
}
|
|
matrices.push(matrix.concat());
|
|
matrix = iMatrix.concat();
|
|
});
|
|
var combinedMatrix = matrices[0];
|
|
while (matrices.length > 1) {
|
|
matrices.shift();
|
|
combinedMatrix = fabric.util.multiplyTransformMatrices(combinedMatrix, matrices[0]);
|
|
}
|
|
return combinedMatrix;
|
|
};
|
|
}();
|
|
function parseStyleString(style, oStyle) {
|
|
var attr, value;
|
|
style.replace(/;\s*$/, "").split(";").forEach(function(chunk) {
|
|
var pair = chunk.split(":");
|
|
attr = normalizeAttr(pair[0].trim().toLowerCase());
|
|
value = normalizeValue(attr, pair[1].trim());
|
|
oStyle[attr] = value;
|
|
});
|
|
}
|
|
function parseStyleObject(style, oStyle) {
|
|
var attr, value;
|
|
for (var prop in style) {
|
|
if (typeof style[prop] === "undefined") {
|
|
continue;
|
|
}
|
|
attr = normalizeAttr(prop.toLowerCase());
|
|
value = normalizeValue(attr, style[prop]);
|
|
oStyle[attr] = value;
|
|
}
|
|
}
|
|
function getGlobalStylesForElement(element, svgUid) {
|
|
var styles = {};
|
|
for (var rule in fabric.cssRules[svgUid]) {
|
|
if (elementMatchesRule(element, rule.split(" "))) {
|
|
for (var property in fabric.cssRules[svgUid][rule]) {
|
|
styles[property] = fabric.cssRules[svgUid][rule][property];
|
|
}
|
|
}
|
|
}
|
|
return styles;
|
|
}
|
|
function elementMatchesRule(element, selectors) {
|
|
var firstMatching, parentMatching = true;
|
|
firstMatching = selectorMatches(element, selectors.pop());
|
|
if (firstMatching && selectors.length) {
|
|
parentMatching = doesSomeParentMatch(element, selectors);
|
|
}
|
|
return firstMatching && parentMatching && selectors.length === 0;
|
|
}
|
|
function doesSomeParentMatch(element, selectors) {
|
|
var selector, parentMatching = true;
|
|
while (element.parentNode && element.parentNode.nodeType === 1 && selectors.length) {
|
|
if (parentMatching) {
|
|
selector = selectors.pop();
|
|
}
|
|
element = element.parentNode;
|
|
parentMatching = selectorMatches(element, selector);
|
|
}
|
|
return selectors.length === 0;
|
|
}
|
|
function selectorMatches(element, selector) {
|
|
var nodeName = element.nodeName, classNames = element.getAttribute("class"), id = element.getAttribute("id"), matcher;
|
|
matcher = new RegExp("^" + nodeName, "i");
|
|
selector = selector.replace(matcher, "");
|
|
if (id && selector.length) {
|
|
matcher = new RegExp("#" + id + "(?![a-zA-Z\\-]+)", "i");
|
|
selector = selector.replace(matcher, "");
|
|
}
|
|
if (classNames && selector.length) {
|
|
classNames = classNames.split(" ");
|
|
for (var i = classNames.length; i--; ) {
|
|
matcher = new RegExp("\\." + classNames[i] + "(?![a-zA-Z\\-]+)", "i");
|
|
selector = selector.replace(matcher, "");
|
|
}
|
|
}
|
|
return selector.length === 0;
|
|
}
|
|
function elementById(doc, id) {
|
|
var el;
|
|
doc.getElementById && (el = doc.getElementById(id));
|
|
if (el) {
|
|
return el;
|
|
}
|
|
var node, i, nodelist = doc.getElementsByTagName("*");
|
|
for (i = 0; i < nodelist.length; i++) {
|
|
node = nodelist[i];
|
|
if (id === node.getAttribute("id")) {
|
|
return node;
|
|
}
|
|
}
|
|
}
|
|
function parseUseDirectives(doc) {
|
|
var nodelist = _getMultipleNodes(doc, [ "use", "svg:use" ]), i = 0;
|
|
while (nodelist.length && i < nodelist.length) {
|
|
var el = nodelist[i], xlink = el.getAttribute("xlink:href").substr(1), x = el.getAttribute("x") || 0, y = el.getAttribute("y") || 0, el2 = elementById(doc, xlink).cloneNode(true), currentTrans = (el2.getAttribute("transform") || "") + " translate(" + x + ", " + y + ")", parentNode, oldLength = nodelist.length, attr, j, attrs, l;
|
|
applyViewboxTransform(el2);
|
|
if (/^svg$/i.test(el2.nodeName)) {
|
|
var el3 = el2.ownerDocument.createElement("g");
|
|
for (j = 0, attrs = el2.attributes, l = attrs.length; j < l; j++) {
|
|
attr = attrs.item(j);
|
|
el3.setAttribute(attr.nodeName, attr.nodeValue);
|
|
}
|
|
while (el2.firstChild != null) {
|
|
el3.appendChild(el2.firstChild);
|
|
}
|
|
el2 = el3;
|
|
}
|
|
for (j = 0, attrs = el.attributes, l = attrs.length; j < l; j++) {
|
|
attr = attrs.item(j);
|
|
if (attr.nodeName === "x" || attr.nodeName === "y" || attr.nodeName === "xlink:href") {
|
|
continue;
|
|
}
|
|
if (attr.nodeName === "transform") {
|
|
currentTrans = attr.nodeValue + " " + currentTrans;
|
|
} else {
|
|
el2.setAttribute(attr.nodeName, attr.nodeValue);
|
|
}
|
|
}
|
|
el2.setAttribute("transform", currentTrans);
|
|
el2.setAttribute("instantiated_by_use", "1");
|
|
el2.removeAttribute("id");
|
|
parentNode = el.parentNode;
|
|
parentNode.replaceChild(el2, el);
|
|
if (nodelist.length === oldLength) {
|
|
i++;
|
|
}
|
|
}
|
|
}
|
|
var reViewBoxAttrValue = new RegExp("^" + "\\s*(" + fabric.reNum + "+)\\s*,?" + "\\s*(" + fabric.reNum + "+)\\s*,?" + "\\s*(" + fabric.reNum + "+)\\s*,?" + "\\s*(" + fabric.reNum + "+)\\s*" + "$");
|
|
function applyViewboxTransform(element) {
|
|
var viewBoxAttr = element.getAttribute("viewBox"), scaleX = 1, scaleY = 1, minX = 0, minY = 0, viewBoxWidth, viewBoxHeight, matrix, el, widthAttr = element.getAttribute("width"), heightAttr = element.getAttribute("height"), x = element.getAttribute("x") || 0, y = element.getAttribute("y") || 0, preserveAspectRatio = element.getAttribute("preserveAspectRatio") || "", missingViewBox = !viewBoxAttr || !reViewBoxTagNames.test(element.nodeName) || !(viewBoxAttr = viewBoxAttr.match(reViewBoxAttrValue)), missingDimAttr = !widthAttr || !heightAttr || widthAttr === "100%" || heightAttr === "100%", toBeParsed = missingViewBox && missingDimAttr, parsedDim = {}, translateMatrix = "";
|
|
parsedDim.width = 0;
|
|
parsedDim.height = 0;
|
|
parsedDim.toBeParsed = toBeParsed;
|
|
if (toBeParsed) {
|
|
return parsedDim;
|
|
}
|
|
if (missingViewBox) {
|
|
parsedDim.width = parseUnit(widthAttr);
|
|
parsedDim.height = parseUnit(heightAttr);
|
|
return parsedDim;
|
|
}
|
|
minX = -parseFloat(viewBoxAttr[1]), minY = -parseFloat(viewBoxAttr[2]), viewBoxWidth = parseFloat(viewBoxAttr[3]),
|
|
viewBoxHeight = parseFloat(viewBoxAttr[4]);
|
|
if (!missingDimAttr) {
|
|
parsedDim.width = parseUnit(widthAttr);
|
|
parsedDim.height = parseUnit(heightAttr);
|
|
scaleX = parsedDim.width / viewBoxWidth;
|
|
scaleY = parsedDim.height / viewBoxHeight;
|
|
} else {
|
|
parsedDim.width = viewBoxWidth;
|
|
parsedDim.height = viewBoxHeight;
|
|
}
|
|
preserveAspectRatio = fabric.util.parsePreserveAspectRatioAttribute(preserveAspectRatio);
|
|
if (preserveAspectRatio.alignX !== "none") {
|
|
scaleY = scaleX = scaleX > scaleY ? scaleY : scaleX;
|
|
}
|
|
if (scaleX === 1 && scaleY === 1 && minX === 0 && minY === 0 && x === 0 && y === 0) {
|
|
return parsedDim;
|
|
}
|
|
if (x || y) {
|
|
translateMatrix = " translate(" + parseUnit(x) + " " + parseUnit(y) + ") ";
|
|
}
|
|
matrix = translateMatrix + " matrix(" + scaleX + " 0" + " 0 " + scaleY + " " + minX * scaleX + " " + minY * scaleY + ") ";
|
|
if (element.nodeName === "svg") {
|
|
el = element.ownerDocument.createElement("g");
|
|
while (element.firstChild != null) {
|
|
el.appendChild(element.firstChild);
|
|
}
|
|
element.appendChild(el);
|
|
} else {
|
|
el = element;
|
|
matrix = el.getAttribute("transform") + matrix;
|
|
}
|
|
el.setAttribute("transform", matrix);
|
|
return parsedDim;
|
|
}
|
|
fabric.parseSVGDocument = function() {
|
|
function hasAncestorWithNodeName(element, nodeName) {
|
|
while (element && (element = element.parentNode)) {
|
|
if (element.nodeName && nodeName.test(element.nodeName.replace("svg:", "")) && !element.getAttribute("instantiated_by_use")) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
return function(doc, callback, reviver) {
|
|
if (!doc) {
|
|
return;
|
|
}
|
|
parseUseDirectives(doc);
|
|
var startTime = new Date(), svgUid = fabric.Object.__uid++, options = applyViewboxTransform(doc), descendants = fabric.util.toArray(doc.getElementsByTagName("*"));
|
|
options.svgUid = svgUid;
|
|
if (descendants.length === 0 && fabric.isLikelyNode) {
|
|
descendants = doc.selectNodes('//*[name(.)!="svg"]');
|
|
var arr = [];
|
|
for (var i = 0, len = descendants.length; i < len; i++) {
|
|
arr[i] = descendants[i];
|
|
}
|
|
descendants = arr;
|
|
}
|
|
var elements = descendants.filter(function(el) {
|
|
applyViewboxTransform(el);
|
|
return reAllowedSVGTagNames.test(el.nodeName.replace("svg:", "")) && !hasAncestorWithNodeName(el, reNotAllowedAncestors);
|
|
});
|
|
if (!elements || elements && !elements.length) {
|
|
callback && callback([], {});
|
|
return;
|
|
}
|
|
fabric.gradientDefs[svgUid] = fabric.getGradientDefs(doc);
|
|
fabric.cssRules[svgUid] = fabric.getCSSRules(doc);
|
|
fabric.parseElements(elements, function(instances) {
|
|
fabric.documentParsingTime = new Date() - startTime;
|
|
if (callback) {
|
|
callback(instances, options);
|
|
}
|
|
}, clone(options), reviver);
|
|
};
|
|
}();
|
|
var svgCache = {
|
|
has: function(name, callback) {
|
|
callback(false);
|
|
},
|
|
get: function() {},
|
|
set: function() {}
|
|
};
|
|
function _enlivenCachedObject(cachedObject) {
|
|
var objects = cachedObject.objects, options = cachedObject.options;
|
|
objects = objects.map(function(o) {
|
|
return fabric[capitalize(o.type)].fromObject(o);
|
|
});
|
|
return {
|
|
objects: objects,
|
|
options: options
|
|
};
|
|
}
|
|
function _createSVGPattern(markup, canvas, property) {
|
|
if (canvas[property] && canvas[property].toSVG) {
|
|
markup.push('\t<pattern x="0" y="0" id="', property, 'Pattern" ', 'width="', canvas[property].source.width, '" height="', canvas[property].source.height, '" patternUnits="userSpaceOnUse">\n', '\t\t<image x="0" y="0" ', 'width="', canvas[property].source.width, '" height="', canvas[property].source.height, '" xlink:href="', canvas[property].source.src, '"></image>\n\t</pattern>\n');
|
|
}
|
|
}
|
|
var reFontDeclaration = new RegExp("(normal|italic)?\\s*(normal|small-caps)?\\s*" + "(normal|bold|bolder|lighter|100|200|300|400|500|600|700|800|900)?\\s*(" + fabric.reNum + "(?:px|cm|mm|em|pt|pc|in)*)(?:\\/(normal|" + fabric.reNum + "))?\\s+(.*)");
|
|
extend(fabric, {
|
|
parseFontDeclaration: function(value, oStyle) {
|
|
var match = value.match(reFontDeclaration);
|
|
if (!match) {
|
|
return;
|
|
}
|
|
var fontStyle = match[1], fontWeight = match[3], fontSize = match[4], lineHeight = match[5], fontFamily = match[6];
|
|
if (fontStyle) {
|
|
oStyle.fontStyle = fontStyle;
|
|
}
|
|
if (fontWeight) {
|
|
oStyle.fontWeight = isNaN(parseFloat(fontWeight)) ? fontWeight : parseFloat(fontWeight);
|
|
}
|
|
if (fontSize) {
|
|
oStyle.fontSize = parseUnit(fontSize);
|
|
}
|
|
if (fontFamily) {
|
|
oStyle.fontFamily = fontFamily;
|
|
}
|
|
if (lineHeight) {
|
|
oStyle.lineHeight = lineHeight === "normal" ? 1 : lineHeight;
|
|
}
|
|
},
|
|
getGradientDefs: function(doc) {
|
|
var tagArray = [ "linearGradient", "radialGradient", "svg:linearGradient", "svg:radialGradient" ], elList = _getMultipleNodes(doc, tagArray), el, j = 0, id, xlink, gradientDefs = {}, idsToXlinkMap = {};
|
|
j = elList.length;
|
|
while (j--) {
|
|
el = elList[j];
|
|
xlink = el.getAttribute("xlink:href");
|
|
id = el.getAttribute("id");
|
|
if (xlink) {
|
|
idsToXlinkMap[id] = xlink.substr(1);
|
|
}
|
|
gradientDefs[id] = el;
|
|
}
|
|
for (id in idsToXlinkMap) {
|
|
var el2 = gradientDefs[idsToXlinkMap[id]].cloneNode(true);
|
|
el = gradientDefs[id];
|
|
while (el2.firstChild) {
|
|
el.appendChild(el2.firstChild);
|
|
}
|
|
}
|
|
return gradientDefs;
|
|
},
|
|
parseAttributes: function(element, attributes, svgUid) {
|
|
if (!element) {
|
|
return;
|
|
}
|
|
var value, parentAttributes = {}, fontSize;
|
|
if (typeof svgUid === "undefined") {
|
|
svgUid = element.getAttribute("svgUid");
|
|
}
|
|
if (element.parentNode && reAllowedParents.test(element.parentNode.nodeName)) {
|
|
parentAttributes = fabric.parseAttributes(element.parentNode, attributes, svgUid);
|
|
}
|
|
fontSize = parentAttributes && parentAttributes.fontSize || element.getAttribute("font-size") || fabric.Text.DEFAULT_SVG_FONT_SIZE;
|
|
var ownAttributes = attributes.reduce(function(memo, attr) {
|
|
value = element.getAttribute(attr);
|
|
if (value) {
|
|
attr = normalizeAttr(attr);
|
|
value = normalizeValue(attr, value, parentAttributes, fontSize);
|
|
memo[attr] = value;
|
|
}
|
|
return memo;
|
|
}, {});
|
|
ownAttributes = extend(ownAttributes, extend(getGlobalStylesForElement(element, svgUid), fabric.parseStyleAttribute(element)));
|
|
if (ownAttributes.font) {
|
|
fabric.parseFontDeclaration(ownAttributes.font, ownAttributes);
|
|
}
|
|
return _setStrokeFillOpacity(extend(parentAttributes, ownAttributes));
|
|
},
|
|
parseElements: function(elements, callback, options, reviver) {
|
|
new fabric.ElementsParser(elements, callback, options, reviver).parse();
|
|
},
|
|
parseStyleAttribute: function(element) {
|
|
var oStyle = {}, style = element.getAttribute("style");
|
|
if (!style) {
|
|
return oStyle;
|
|
}
|
|
if (typeof style === "string") {
|
|
parseStyleString(style, oStyle);
|
|
} else {
|
|
parseStyleObject(style, oStyle);
|
|
}
|
|
return oStyle;
|
|
},
|
|
parsePointsAttribute: function(points) {
|
|
if (!points) {
|
|
return null;
|
|
}
|
|
points = points.replace(/,/g, " ").trim();
|
|
points = points.split(/\s+/);
|
|
var parsedPoints = [], i, len;
|
|
i = 0;
|
|
len = points.length;
|
|
for (;i < len; i += 2) {
|
|
parsedPoints.push({
|
|
x: parseFloat(points[i]),
|
|
y: parseFloat(points[i + 1])
|
|
});
|
|
}
|
|
return parsedPoints;
|
|
},
|
|
getCSSRules: function(doc) {
|
|
var styles = doc.getElementsByTagName("style"), allRules = {}, rules;
|
|
for (var i = 0, len = styles.length; i < len; i++) {
|
|
var styleContents = styles[i].textContent || styles[i].text;
|
|
styleContents = styleContents.replace(/\/\*[\s\S]*?\*\//g, "");
|
|
if (styleContents.trim() === "") {
|
|
continue;
|
|
}
|
|
rules = styleContents.match(/[^{]*\{[\s\S]*?\}/g);
|
|
rules = rules.map(function(rule) {
|
|
return rule.trim();
|
|
});
|
|
rules.forEach(function(rule) {
|
|
var match = rule.match(/([\s\S]*?)\s*\{([^}]*)\}/), ruleObj = {}, declaration = match[2].trim(), propertyValuePairs = declaration.replace(/;$/, "").split(/\s*;\s*/);
|
|
for (var i = 0, len = propertyValuePairs.length; i < len; i++) {
|
|
var pair = propertyValuePairs[i].split(/\s*:\s*/), property = normalizeAttr(pair[0]), value = normalizeValue(property, pair[1], pair[0]);
|
|
ruleObj[property] = value;
|
|
}
|
|
rule = match[1];
|
|
rule.split(",").forEach(function(_rule) {
|
|
_rule = _rule.replace(/^svg/i, "").trim();
|
|
if (_rule === "") {
|
|
return;
|
|
}
|
|
if (allRules[_rule]) {
|
|
fabric.util.object.extend(allRules[_rule], ruleObj);
|
|
} else {
|
|
allRules[_rule] = fabric.util.object.clone(ruleObj);
|
|
}
|
|
});
|
|
});
|
|
}
|
|
return allRules;
|
|
},
|
|
loadSVGFromURL: function(url, callback, reviver) {
|
|
url = url.replace(/^\n\s*/, "").trim();
|
|
svgCache.has(url, function(hasUrl) {
|
|
if (hasUrl) {
|
|
svgCache.get(url, function(value) {
|
|
var enlivedRecord = _enlivenCachedObject(value);
|
|
callback(enlivedRecord.objects, enlivedRecord.options);
|
|
});
|
|
} else {
|
|
new fabric.util.request(url, {
|
|
method: "get",
|
|
onComplete: onComplete
|
|
});
|
|
}
|
|
});
|
|
function onComplete(r) {
|
|
var xml = r.responseXML;
|
|
if (xml && !xml.documentElement && fabric.window.ActiveXObject && r.responseText) {
|
|
xml = new ActiveXObject("Microsoft.XMLDOM");
|
|
xml.async = "false";
|
|
xml.loadXML(r.responseText.replace(/<!DOCTYPE[\s\S]*?(\[[\s\S]*\])*?>/i, ""));
|
|
}
|
|
if (!xml || !xml.documentElement) {
|
|
callback && callback(null);
|
|
}
|
|
fabric.parseSVGDocument(xml.documentElement, function(results, options) {
|
|
svgCache.set(url, {
|
|
objects: fabric.util.array.invoke(results, "toObject"),
|
|
options: options
|
|
});
|
|
callback && callback(results, options);
|
|
}, reviver);
|
|
}
|
|
},
|
|
loadSVGFromString: function(string, callback, reviver) {
|
|
string = string.trim();
|
|
var doc;
|
|
if (typeof DOMParser !== "undefined") {
|
|
var parser = new DOMParser();
|
|
if (parser && parser.parseFromString) {
|
|
doc = parser.parseFromString(string, "text/xml");
|
|
}
|
|
} else if (fabric.window.ActiveXObject) {
|
|
doc = new ActiveXObject("Microsoft.XMLDOM");
|
|
doc.async = "false";
|
|
doc.loadXML(string.replace(/<!DOCTYPE[\s\S]*?(\[[\s\S]*\])*?>/i, ""));
|
|
}
|
|
fabric.parseSVGDocument(doc.documentElement, function(results, options) {
|
|
callback(results, options);
|
|
}, reviver);
|
|
},
|
|
createSVGFontFacesMarkup: function(objects) {
|
|
var markup = "", fontList = {}, obj, fontFamily, style, row, rowIndex, _char, charIndex, fontPaths = fabric.fontPaths;
|
|
for (var i = 0, len = objects.length; i < len; i++) {
|
|
obj = objects[i];
|
|
fontFamily = obj.fontFamily;
|
|
if (obj.type.indexOf("text") === -1 || fontList[fontFamily] || !fontPaths[fontFamily]) {
|
|
continue;
|
|
}
|
|
fontList[fontFamily] = true;
|
|
if (!obj.styles) {
|
|
continue;
|
|
}
|
|
style = obj.styles;
|
|
for (rowIndex in style) {
|
|
row = style[rowIndex];
|
|
for (charIndex in row) {
|
|
_char = row[charIndex];
|
|
fontFamily = _char.fontFamily;
|
|
if (!fontList[fontFamily] && fontPaths[fontFamily]) {
|
|
fontList[fontFamily] = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
for (var j in fontList) {
|
|
markup += [ "\t\t@font-face {\n", "\t\t\tfont-family: '", j, "';\n", "\t\t\tsrc: url('", fontPaths[j], "');\n", "\t\t}\n" ].join("");
|
|
}
|
|
if (markup) {
|
|
markup = [ '\t<style type="text/css">', "<![CDATA[\n", markup, "]]>", "</style>\n" ].join("");
|
|
}
|
|
return markup;
|
|
},
|
|
createSVGRefElementsMarkup: function(canvas) {
|
|
var markup = [];
|
|
_createSVGPattern(markup, canvas, "backgroundColor");
|
|
_createSVGPattern(markup, canvas, "overlayColor");
|
|
return markup.join("");
|
|
}
|
|
});
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
fabric.ElementsParser = function(elements, callback, options, reviver) {
|
|
this.elements = elements;
|
|
this.callback = callback;
|
|
this.options = options;
|
|
this.reviver = reviver;
|
|
this.svgUid = options && options.svgUid || 0;
|
|
};
|
|
|
|
fabric.ElementsParser.prototype.parse = function() {
|
|
this.instances = new Array(this.elements.length);
|
|
this.numElements = this.elements.length;
|
|
this.createObjects();
|
|
};
|
|
|
|
fabric.ElementsParser.prototype.createObjects = function() {
|
|
for (var i = 0, len = this.elements.length; i < len; i++) {
|
|
this.elements[i].setAttribute("svgUid", this.svgUid);
|
|
(function(_this, i) {
|
|
setTimeout(function() {
|
|
_this.createObject(_this.elements[i], i);
|
|
}, 0);
|
|
})(this, i);
|
|
}
|
|
};
|
|
|
|
fabric.ElementsParser.prototype.createObject = function(el, index) {
|
|
var klass = fabric[fabric.util.string.capitalize(el.tagName.replace("svg:", ""))];
|
|
if (klass && klass.fromElement) {
|
|
try {
|
|
this._createObject(klass, el, index);
|
|
} catch (err) {
|
|
fabric.log(err);
|
|
}
|
|
} else {
|
|
this.checkIfDone();
|
|
}
|
|
};
|
|
|
|
fabric.ElementsParser.prototype._createObject = function(klass, el, index) {
|
|
if (klass.async) {
|
|
klass.fromElement(el, this.createCallback(index, el), this.options);
|
|
} else {
|
|
var obj = klass.fromElement(el, this.options);
|
|
this.resolveGradient(obj, "fill");
|
|
this.resolveGradient(obj, "stroke");
|
|
this.reviver && this.reviver(el, obj);
|
|
this.instances[index] = obj;
|
|
this.checkIfDone();
|
|
}
|
|
};
|
|
|
|
fabric.ElementsParser.prototype.createCallback = function(index, el) {
|
|
var _this = this;
|
|
return function(obj) {
|
|
_this.resolveGradient(obj, "fill");
|
|
_this.resolveGradient(obj, "stroke");
|
|
_this.reviver && _this.reviver(el, obj);
|
|
_this.instances[index] = obj;
|
|
_this.checkIfDone();
|
|
};
|
|
};
|
|
|
|
fabric.ElementsParser.prototype.resolveGradient = function(obj, property) {
|
|
var instanceFillValue = obj.get(property);
|
|
if (!/^url\(/.test(instanceFillValue)) {
|
|
return;
|
|
}
|
|
var gradientId = instanceFillValue.slice(5, instanceFillValue.length - 1);
|
|
if (fabric.gradientDefs[this.svgUid][gradientId]) {
|
|
obj.set(property, fabric.Gradient.fromElement(fabric.gradientDefs[this.svgUid][gradientId], obj));
|
|
}
|
|
};
|
|
|
|
fabric.ElementsParser.prototype.checkIfDone = function() {
|
|
if (--this.numElements === 0) {
|
|
this.instances = this.instances.filter(function(el) {
|
|
return el != null;
|
|
});
|
|
this.callback(this.instances);
|
|
}
|
|
};
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {});
|
|
if (fabric.Point) {
|
|
fabric.warn("fabric.Point is already defined");
|
|
return;
|
|
}
|
|
fabric.Point = Point;
|
|
function Point(x, y) {
|
|
this.x = x;
|
|
this.y = y;
|
|
}
|
|
Point.prototype = {
|
|
constructor: Point,
|
|
add: function(that) {
|
|
return new Point(this.x + that.x, this.y + that.y);
|
|
},
|
|
addEquals: function(that) {
|
|
this.x += that.x;
|
|
this.y += that.y;
|
|
return this;
|
|
},
|
|
scalarAdd: function(scalar) {
|
|
return new Point(this.x + scalar, this.y + scalar);
|
|
},
|
|
scalarAddEquals: function(scalar) {
|
|
this.x += scalar;
|
|
this.y += scalar;
|
|
return this;
|
|
},
|
|
subtract: function(that) {
|
|
return new Point(this.x - that.x, this.y - that.y);
|
|
},
|
|
subtractEquals: function(that) {
|
|
this.x -= that.x;
|
|
this.y -= that.y;
|
|
return this;
|
|
},
|
|
scalarSubtract: function(scalar) {
|
|
return new Point(this.x - scalar, this.y - scalar);
|
|
},
|
|
scalarSubtractEquals: function(scalar) {
|
|
this.x -= scalar;
|
|
this.y -= scalar;
|
|
return this;
|
|
},
|
|
multiply: function(scalar) {
|
|
return new Point(this.x * scalar, this.y * scalar);
|
|
},
|
|
multiplyEquals: function(scalar) {
|
|
this.x *= scalar;
|
|
this.y *= scalar;
|
|
return this;
|
|
},
|
|
divide: function(scalar) {
|
|
return new Point(this.x / scalar, this.y / scalar);
|
|
},
|
|
divideEquals: function(scalar) {
|
|
this.x /= scalar;
|
|
this.y /= scalar;
|
|
return this;
|
|
},
|
|
eq: function(that) {
|
|
return this.x === that.x && this.y === that.y;
|
|
},
|
|
lt: function(that) {
|
|
return this.x < that.x && this.y < that.y;
|
|
},
|
|
lte: function(that) {
|
|
return this.x <= that.x && this.y <= that.y;
|
|
},
|
|
gt: function(that) {
|
|
return this.x > that.x && this.y > that.y;
|
|
},
|
|
gte: function(that) {
|
|
return this.x >= that.x && this.y >= that.y;
|
|
},
|
|
lerp: function(that, t) {
|
|
return new Point(this.x + (that.x - this.x) * t, this.y + (that.y - this.y) * t);
|
|
},
|
|
distanceFrom: function(that) {
|
|
var dx = this.x - that.x, dy = this.y - that.y;
|
|
return Math.sqrt(dx * dx + dy * dy);
|
|
},
|
|
midPointFrom: function(that) {
|
|
return new Point(this.x + (that.x - this.x) / 2, this.y + (that.y - this.y) / 2);
|
|
},
|
|
min: function(that) {
|
|
return new Point(Math.min(this.x, that.x), Math.min(this.y, that.y));
|
|
},
|
|
max: function(that) {
|
|
return new Point(Math.max(this.x, that.x), Math.max(this.y, that.y));
|
|
},
|
|
toString: function() {
|
|
return this.x + "," + this.y;
|
|
},
|
|
setXY: function(x, y) {
|
|
this.x = x;
|
|
this.y = y;
|
|
},
|
|
setFromPoint: function(that) {
|
|
this.x = that.x;
|
|
this.y = that.y;
|
|
},
|
|
swap: function(that) {
|
|
var x = this.x, y = this.y;
|
|
this.x = that.x;
|
|
this.y = that.y;
|
|
that.x = x;
|
|
that.y = y;
|
|
}
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {});
|
|
if (fabric.Intersection) {
|
|
fabric.warn("fabric.Intersection is already defined");
|
|
return;
|
|
}
|
|
function Intersection(status) {
|
|
this.status = status;
|
|
this.points = [];
|
|
}
|
|
fabric.Intersection = Intersection;
|
|
fabric.Intersection.prototype = {
|
|
appendPoint: function(point) {
|
|
this.points.push(point);
|
|
},
|
|
appendPoints: function(points) {
|
|
this.points = this.points.concat(points);
|
|
}
|
|
};
|
|
fabric.Intersection.intersectLineLine = function(a1, a2, b1, b2) {
|
|
var result, uaT = (b2.x - b1.x) * (a1.y - b1.y) - (b2.y - b1.y) * (a1.x - b1.x), ubT = (a2.x - a1.x) * (a1.y - b1.y) - (a2.y - a1.y) * (a1.x - b1.x), uB = (b2.y - b1.y) * (a2.x - a1.x) - (b2.x - b1.x) * (a2.y - a1.y);
|
|
if (uB !== 0) {
|
|
var ua = uaT / uB, ub = ubT / uB;
|
|
if (0 <= ua && ua <= 1 && 0 <= ub && ub <= 1) {
|
|
result = new Intersection("Intersection");
|
|
result.points.push(new fabric.Point(a1.x + ua * (a2.x - a1.x), a1.y + ua * (a2.y - a1.y)));
|
|
} else {
|
|
result = new Intersection();
|
|
}
|
|
} else {
|
|
if (uaT === 0 || ubT === 0) {
|
|
result = new Intersection("Coincident");
|
|
} else {
|
|
result = new Intersection("Parallel");
|
|
}
|
|
}
|
|
return result;
|
|
};
|
|
fabric.Intersection.intersectLinePolygon = function(a1, a2, points) {
|
|
var result = new Intersection(), length = points.length;
|
|
for (var i = 0; i < length; i++) {
|
|
var b1 = points[i], b2 = points[(i + 1) % length], inter = Intersection.intersectLineLine(a1, a2, b1, b2);
|
|
result.appendPoints(inter.points);
|
|
}
|
|
if (result.points.length > 0) {
|
|
result.status = "Intersection";
|
|
}
|
|
return result;
|
|
};
|
|
fabric.Intersection.intersectPolygonPolygon = function(points1, points2) {
|
|
var result = new Intersection(), length = points1.length;
|
|
for (var i = 0; i < length; i++) {
|
|
var a1 = points1[i], a2 = points1[(i + 1) % length], inter = Intersection.intersectLinePolygon(a1, a2, points2);
|
|
result.appendPoints(inter.points);
|
|
}
|
|
if (result.points.length > 0) {
|
|
result.status = "Intersection";
|
|
}
|
|
return result;
|
|
};
|
|
fabric.Intersection.intersectPolygonRectangle = function(points, r1, r2) {
|
|
var min = r1.min(r2), max = r1.max(r2), topRight = new fabric.Point(max.x, min.y), bottomLeft = new fabric.Point(min.x, max.y), inter1 = Intersection.intersectLinePolygon(min, topRight, points), inter2 = Intersection.intersectLinePolygon(topRight, max, points), inter3 = Intersection.intersectLinePolygon(max, bottomLeft, points), inter4 = Intersection.intersectLinePolygon(bottomLeft, min, points), result = new Intersection();
|
|
result.appendPoints(inter1.points);
|
|
result.appendPoints(inter2.points);
|
|
result.appendPoints(inter3.points);
|
|
result.appendPoints(inter4.points);
|
|
if (result.points.length > 0) {
|
|
result.status = "Intersection";
|
|
}
|
|
return result;
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {});
|
|
if (fabric.Color) {
|
|
fabric.warn("fabric.Color is already defined.");
|
|
return;
|
|
}
|
|
function Color(color) {
|
|
if (!color) {
|
|
this.setSource([ 0, 0, 0, 1 ]);
|
|
} else {
|
|
this._tryParsingColor(color);
|
|
}
|
|
}
|
|
fabric.Color = Color;
|
|
fabric.Color.prototype = {
|
|
_tryParsingColor: function(color) {
|
|
var source;
|
|
if (color in Color.colorNameMap) {
|
|
color = Color.colorNameMap[color];
|
|
}
|
|
if (color === "transparent") {
|
|
source = [ 255, 255, 255, 0 ];
|
|
}
|
|
if (!source) {
|
|
source = Color.sourceFromHex(color);
|
|
}
|
|
if (!source) {
|
|
source = Color.sourceFromRgb(color);
|
|
}
|
|
if (!source) {
|
|
source = Color.sourceFromHsl(color);
|
|
}
|
|
if (!source) {
|
|
source = [ 0, 0, 0, 1 ];
|
|
}
|
|
if (source) {
|
|
this.setSource(source);
|
|
}
|
|
},
|
|
_rgbToHsl: function(r, g, b) {
|
|
r /= 255, g /= 255, b /= 255;
|
|
var h, s, l, max = fabric.util.array.max([ r, g, b ]), min = fabric.util.array.min([ r, g, b ]);
|
|
l = (max + min) / 2;
|
|
if (max === min) {
|
|
h = s = 0;
|
|
} else {
|
|
var d = max - min;
|
|
s = l > .5 ? d / (2 - max - min) : d / (max + min);
|
|
switch (max) {
|
|
case r:
|
|
h = (g - b) / d + (g < b ? 6 : 0);
|
|
break;
|
|
|
|
case g:
|
|
h = (b - r) / d + 2;
|
|
break;
|
|
|
|
case b:
|
|
h = (r - g) / d + 4;
|
|
break;
|
|
}
|
|
h /= 6;
|
|
}
|
|
return [ Math.round(h * 360), Math.round(s * 100), Math.round(l * 100) ];
|
|
},
|
|
getSource: function() {
|
|
return this._source;
|
|
},
|
|
setSource: function(source) {
|
|
this._source = source;
|
|
},
|
|
toRgb: function() {
|
|
var source = this.getSource();
|
|
return "rgb(" + source[0] + "," + source[1] + "," + source[2] + ")";
|
|
},
|
|
toRgba: function() {
|
|
var source = this.getSource();
|
|
return "rgba(" + source[0] + "," + source[1] + "," + source[2] + "," + source[3] + ")";
|
|
},
|
|
toHsl: function() {
|
|
var source = this.getSource(), hsl = this._rgbToHsl(source[0], source[1], source[2]);
|
|
return "hsl(" + hsl[0] + "," + hsl[1] + "%," + hsl[2] + "%)";
|
|
},
|
|
toHsla: function() {
|
|
var source = this.getSource(), hsl = this._rgbToHsl(source[0], source[1], source[2]);
|
|
return "hsla(" + hsl[0] + "," + hsl[1] + "%," + hsl[2] + "%," + source[3] + ")";
|
|
},
|
|
toHex: function() {
|
|
var source = this.getSource(), r, g, b;
|
|
r = source[0].toString(16);
|
|
r = r.length === 1 ? "0" + r : r;
|
|
g = source[1].toString(16);
|
|
g = g.length === 1 ? "0" + g : g;
|
|
b = source[2].toString(16);
|
|
b = b.length === 1 ? "0" + b : b;
|
|
return r.toUpperCase() + g.toUpperCase() + b.toUpperCase();
|
|
},
|
|
getAlpha: function() {
|
|
return this.getSource()[3];
|
|
},
|
|
setAlpha: function(alpha) {
|
|
var source = this.getSource();
|
|
source[3] = alpha;
|
|
this.setSource(source);
|
|
return this;
|
|
},
|
|
toGrayscale: function() {
|
|
var source = this.getSource(), average = parseInt((source[0] * .3 + source[1] * .59 + source[2] * .11).toFixed(0), 10), currentAlpha = source[3];
|
|
this.setSource([ average, average, average, currentAlpha ]);
|
|
return this;
|
|
},
|
|
toBlackWhite: function(threshold) {
|
|
var source = this.getSource(), average = (source[0] * .3 + source[1] * .59 + source[2] * .11).toFixed(0), currentAlpha = source[3];
|
|
threshold = threshold || 127;
|
|
average = Number(average) < Number(threshold) ? 0 : 255;
|
|
this.setSource([ average, average, average, currentAlpha ]);
|
|
return this;
|
|
},
|
|
overlayWith: function(otherColor) {
|
|
if (!(otherColor instanceof Color)) {
|
|
otherColor = new Color(otherColor);
|
|
}
|
|
var result = [], alpha = this.getAlpha(), otherAlpha = .5, source = this.getSource(), otherSource = otherColor.getSource();
|
|
for (var i = 0; i < 3; i++) {
|
|
result.push(Math.round(source[i] * (1 - otherAlpha) + otherSource[i] * otherAlpha));
|
|
}
|
|
result[3] = alpha;
|
|
this.setSource(result);
|
|
return this;
|
|
}
|
|
};
|
|
fabric.Color.reRGBa = /^rgba?\(\s*(\d{1,3}(?:\.\d+)?\%?)\s*,\s*(\d{1,3}(?:\.\d+)?\%?)\s*,\s*(\d{1,3}(?:\.\d+)?\%?)\s*(?:\s*,\s*(\d+(?:\.\d+)?)\s*)?\)$/;
|
|
fabric.Color.reHSLa = /^hsla?\(\s*(\d{1,3})\s*,\s*(\d{1,3}\%)\s*,\s*(\d{1,3}\%)\s*(?:\s*,\s*(\d+(?:\.\d+)?)\s*)?\)$/;
|
|
fabric.Color.reHex = /^#?([0-9a-f]{6}|[0-9a-f]{3})$/i;
|
|
fabric.Color.colorNameMap = {
|
|
aqua: "#00FFFF",
|
|
black: "#000000",
|
|
blue: "#0000FF",
|
|
fuchsia: "#FF00FF",
|
|
gray: "#808080",
|
|
grey: "#808080",
|
|
green: "#008000",
|
|
lime: "#00FF00",
|
|
maroon: "#800000",
|
|
navy: "#000080",
|
|
olive: "#808000",
|
|
orange: "#FFA500",
|
|
purple: "#800080",
|
|
red: "#FF0000",
|
|
silver: "#C0C0C0",
|
|
teal: "#008080",
|
|
white: "#FFFFFF",
|
|
yellow: "#FFFF00"
|
|
};
|
|
function hue2rgb(p, q, t) {
|
|
if (t < 0) {
|
|
t += 1;
|
|
}
|
|
if (t > 1) {
|
|
t -= 1;
|
|
}
|
|
if (t < 1 / 6) {
|
|
return p + (q - p) * 6 * t;
|
|
}
|
|
if (t < 1 / 2) {
|
|
return q;
|
|
}
|
|
if (t < 2 / 3) {
|
|
return p + (q - p) * (2 / 3 - t) * 6;
|
|
}
|
|
return p;
|
|
}
|
|
fabric.Color.fromRgb = function(color) {
|
|
return Color.fromSource(Color.sourceFromRgb(color));
|
|
};
|
|
fabric.Color.sourceFromRgb = function(color) {
|
|
var match = color.match(Color.reRGBa);
|
|
if (match) {
|
|
var r = parseInt(match[1], 10) / (/%$/.test(match[1]) ? 100 : 1) * (/%$/.test(match[1]) ? 255 : 1), g = parseInt(match[2], 10) / (/%$/.test(match[2]) ? 100 : 1) * (/%$/.test(match[2]) ? 255 : 1), b = parseInt(match[3], 10) / (/%$/.test(match[3]) ? 100 : 1) * (/%$/.test(match[3]) ? 255 : 1);
|
|
return [ parseInt(r, 10), parseInt(g, 10), parseInt(b, 10), match[4] ? parseFloat(match[4]) : 1 ];
|
|
}
|
|
};
|
|
fabric.Color.fromRgba = Color.fromRgb;
|
|
fabric.Color.fromHsl = function(color) {
|
|
return Color.fromSource(Color.sourceFromHsl(color));
|
|
};
|
|
fabric.Color.sourceFromHsl = function(color) {
|
|
var match = color.match(Color.reHSLa);
|
|
if (!match) {
|
|
return;
|
|
}
|
|
var h = (parseFloat(match[1]) % 360 + 360) % 360 / 360, s = parseFloat(match[2]) / (/%$/.test(match[2]) ? 100 : 1), l = parseFloat(match[3]) / (/%$/.test(match[3]) ? 100 : 1), r, g, b;
|
|
if (s === 0) {
|
|
r = g = b = l;
|
|
} else {
|
|
var q = l <= .5 ? l * (s + 1) : l + s - l * s, p = l * 2 - q;
|
|
r = hue2rgb(p, q, h + 1 / 3);
|
|
g = hue2rgb(p, q, h);
|
|
b = hue2rgb(p, q, h - 1 / 3);
|
|
}
|
|
return [ Math.round(r * 255), Math.round(g * 255), Math.round(b * 255), match[4] ? parseFloat(match[4]) : 1 ];
|
|
};
|
|
fabric.Color.fromHsla = Color.fromHsl;
|
|
fabric.Color.fromHex = function(color) {
|
|
return Color.fromSource(Color.sourceFromHex(color));
|
|
};
|
|
fabric.Color.sourceFromHex = function(color) {
|
|
if (color.match(Color.reHex)) {
|
|
var value = color.slice(color.indexOf("#") + 1), isShortNotation = value.length === 3, r = isShortNotation ? value.charAt(0) + value.charAt(0) : value.substring(0, 2), g = isShortNotation ? value.charAt(1) + value.charAt(1) : value.substring(2, 4), b = isShortNotation ? value.charAt(2) + value.charAt(2) : value.substring(4, 6);
|
|
return [ parseInt(r, 16), parseInt(g, 16), parseInt(b, 16), 1 ];
|
|
}
|
|
};
|
|
fabric.Color.fromSource = function(source) {
|
|
var oColor = new Color();
|
|
oColor.setSource(source);
|
|
return oColor;
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function() {
|
|
function getColorStop(el) {
|
|
var style = el.getAttribute("style"), offset = el.getAttribute("offset") || 0, color, colorAlpha, opacity;
|
|
offset = parseFloat(offset) / (/%$/.test(offset) ? 100 : 1);
|
|
offset = offset < 0 ? 0 : offset > 1 ? 1 : offset;
|
|
if (style) {
|
|
var keyValuePairs = style.split(/\s*;\s*/);
|
|
if (keyValuePairs[keyValuePairs.length - 1] === "") {
|
|
keyValuePairs.pop();
|
|
}
|
|
for (var i = keyValuePairs.length; i--; ) {
|
|
var split = keyValuePairs[i].split(/\s*:\s*/), key = split[0].trim(), value = split[1].trim();
|
|
if (key === "stop-color") {
|
|
color = value;
|
|
} else if (key === "stop-opacity") {
|
|
opacity = value;
|
|
}
|
|
}
|
|
}
|
|
if (!color) {
|
|
color = el.getAttribute("stop-color") || "rgb(0,0,0)";
|
|
}
|
|
if (!opacity) {
|
|
opacity = el.getAttribute("stop-opacity");
|
|
}
|
|
color = new fabric.Color(color);
|
|
colorAlpha = color.getAlpha();
|
|
opacity = isNaN(parseFloat(opacity)) ? 1 : parseFloat(opacity);
|
|
opacity *= colorAlpha;
|
|
return {
|
|
offset: offset,
|
|
color: color.toRgb(),
|
|
opacity: opacity
|
|
};
|
|
}
|
|
function getLinearCoords(el) {
|
|
return {
|
|
x1: el.getAttribute("x1") || 0,
|
|
y1: el.getAttribute("y1") || 0,
|
|
x2: el.getAttribute("x2") || "100%",
|
|
y2: el.getAttribute("y2") || 0
|
|
};
|
|
}
|
|
function getRadialCoords(el) {
|
|
return {
|
|
x1: el.getAttribute("fx") || el.getAttribute("cx") || "50%",
|
|
y1: el.getAttribute("fy") || el.getAttribute("cy") || "50%",
|
|
r1: 0,
|
|
x2: el.getAttribute("cx") || "50%",
|
|
y2: el.getAttribute("cy") || "50%",
|
|
r2: el.getAttribute("r") || "50%"
|
|
};
|
|
}
|
|
fabric.Gradient = fabric.util.createClass({
|
|
offsetX: 0,
|
|
offsetY: 0,
|
|
initialize: function(options) {
|
|
options || (options = {});
|
|
var coords = {};
|
|
this.id = fabric.Object.__uid++;
|
|
this.type = options.type || "linear";
|
|
coords = {
|
|
x1: options.coords.x1 || 0,
|
|
y1: options.coords.y1 || 0,
|
|
x2: options.coords.x2 || 0,
|
|
y2: options.coords.y2 || 0
|
|
};
|
|
if (this.type === "radial") {
|
|
coords.r1 = options.coords.r1 || 0;
|
|
coords.r2 = options.coords.r2 || 0;
|
|
}
|
|
this.coords = coords;
|
|
this.colorStops = options.colorStops.slice();
|
|
if (options.gradientTransform) {
|
|
this.gradientTransform = options.gradientTransform;
|
|
}
|
|
this.offsetX = options.offsetX || this.offsetX;
|
|
this.offsetY = options.offsetY || this.offsetY;
|
|
},
|
|
addColorStop: function(colorStop) {
|
|
for (var position in colorStop) {
|
|
var color = new fabric.Color(colorStop[position]);
|
|
this.colorStops.push({
|
|
offset: position,
|
|
color: color.toRgb(),
|
|
opacity: color.getAlpha()
|
|
});
|
|
}
|
|
return this;
|
|
},
|
|
toObject: function() {
|
|
return {
|
|
type: this.type,
|
|
coords: this.coords,
|
|
colorStops: this.colorStops,
|
|
offsetX: this.offsetX,
|
|
offsetY: this.offsetY,
|
|
gradientTransform: this.gradientTransform ? this.gradientTransform.concat() : this.gradientTransform
|
|
};
|
|
},
|
|
toSVG: function(object) {
|
|
var coords = fabric.util.object.clone(this.coords), markup, commonAttributes;
|
|
this.colorStops.sort(function(a, b) {
|
|
return a.offset - b.offset;
|
|
});
|
|
if (!(object.group && object.group.type === "path-group")) {
|
|
for (var prop in coords) {
|
|
if (prop === "x1" || prop === "x2" || prop === "r2") {
|
|
coords[prop] += this.offsetX - object.width / 2;
|
|
} else if (prop === "y1" || prop === "y2") {
|
|
coords[prop] += this.offsetY - object.height / 2;
|
|
}
|
|
}
|
|
}
|
|
commonAttributes = 'id="SVGID_' + this.id + '" gradientUnits="userSpaceOnUse"';
|
|
if (this.gradientTransform) {
|
|
commonAttributes += ' gradientTransform="matrix(' + this.gradientTransform.join(" ") + ')" ';
|
|
}
|
|
if (this.type === "linear") {
|
|
markup = [ "<linearGradient ", commonAttributes, ' x1="', coords.x1, '" y1="', coords.y1, '" x2="', coords.x2, '" y2="', coords.y2, '">\n' ];
|
|
} else if (this.type === "radial") {
|
|
markup = [ "<radialGradient ", commonAttributes, ' cx="', coords.x2, '" cy="', coords.y2, '" r="', coords.r2, '" fx="', coords.x1, '" fy="', coords.y1, '">\n' ];
|
|
}
|
|
for (var i = 0; i < this.colorStops.length; i++) {
|
|
markup.push("<stop ", 'offset="', this.colorStops[i].offset * 100 + "%", '" style="stop-color:', this.colorStops[i].color, this.colorStops[i].opacity != null ? ";stop-opacity: " + this.colorStops[i].opacity : ";", '"/>\n');
|
|
}
|
|
markup.push(this.type === "linear" ? "</linearGradient>\n" : "</radialGradient>\n");
|
|
return markup.join("");
|
|
},
|
|
toLive: function(ctx, object) {
|
|
var gradient, prop, coords = fabric.util.object.clone(this.coords);
|
|
if (!this.type) {
|
|
return;
|
|
}
|
|
if (object.group && object.group.type === "path-group") {
|
|
for (prop in coords) {
|
|
if (prop === "x1" || prop === "x2") {
|
|
coords[prop] += -this.offsetX + object.width / 2;
|
|
} else if (prop === "y1" || prop === "y2") {
|
|
coords[prop] += -this.offsetY + object.height / 2;
|
|
}
|
|
}
|
|
}
|
|
if (this.type === "linear") {
|
|
gradient = ctx.createLinearGradient(coords.x1, coords.y1, coords.x2, coords.y2);
|
|
} else if (this.type === "radial") {
|
|
gradient = ctx.createRadialGradient(coords.x1, coords.y1, coords.r1, coords.x2, coords.y2, coords.r2);
|
|
}
|
|
for (var i = 0, len = this.colorStops.length; i < len; i++) {
|
|
var color = this.colorStops[i].color, opacity = this.colorStops[i].opacity, offset = this.colorStops[i].offset;
|
|
if (typeof opacity !== "undefined") {
|
|
color = new fabric.Color(color).setAlpha(opacity).toRgba();
|
|
}
|
|
gradient.addColorStop(parseFloat(offset), color);
|
|
}
|
|
return gradient;
|
|
}
|
|
});
|
|
fabric.util.object.extend(fabric.Gradient, {
|
|
fromElement: function(el, instance) {
|
|
var colorStopEls = el.getElementsByTagName("stop"), type, gradientUnits = el.getAttribute("gradientUnits") || "objectBoundingBox", gradientTransform = el.getAttribute("gradientTransform"), colorStops = [], coords, ellipseMatrix;
|
|
if (el.nodeName === "linearGradient" || el.nodeName === "LINEARGRADIENT") {
|
|
type = "linear";
|
|
} else {
|
|
type = "radial";
|
|
}
|
|
if (type === "linear") {
|
|
coords = getLinearCoords(el);
|
|
} else if (type === "radial") {
|
|
coords = getRadialCoords(el);
|
|
}
|
|
for (var i = colorStopEls.length; i--; ) {
|
|
colorStops.push(getColorStop(colorStopEls[i]));
|
|
}
|
|
ellipseMatrix = _convertPercentUnitsToValues(instance, coords, gradientUnits);
|
|
var gradient = new fabric.Gradient({
|
|
type: type,
|
|
coords: coords,
|
|
colorStops: colorStops,
|
|
offsetX: -instance.left,
|
|
offsetY: -instance.top
|
|
});
|
|
if (gradientTransform || ellipseMatrix !== "") {
|
|
gradient.gradientTransform = fabric.parseTransformAttribute((gradientTransform || "") + ellipseMatrix);
|
|
}
|
|
return gradient;
|
|
},
|
|
forObject: function(obj, options) {
|
|
options || (options = {});
|
|
_convertPercentUnitsToValues(obj, options.coords, "userSpaceOnUse");
|
|
return new fabric.Gradient(options);
|
|
}
|
|
});
|
|
function _convertPercentUnitsToValues(object, options, gradientUnits) {
|
|
var propValue, addFactor = 0, multFactor = 1, ellipseMatrix = "";
|
|
for (var prop in options) {
|
|
if (options[prop] === "Infinity") {
|
|
options[prop] = 1;
|
|
} else if (options[prop] === "-Infinity") {
|
|
options[prop] = 0;
|
|
}
|
|
propValue = parseFloat(options[prop], 10);
|
|
if (typeof options[prop] === "string" && /^\d+%$/.test(options[prop])) {
|
|
multFactor = .01;
|
|
} else {
|
|
multFactor = 1;
|
|
}
|
|
if (prop === "x1" || prop === "x2" || prop === "r2") {
|
|
multFactor *= gradientUnits === "objectBoundingBox" ? object.width : 1;
|
|
addFactor = gradientUnits === "objectBoundingBox" ? object.left || 0 : 0;
|
|
} else if (prop === "y1" || prop === "y2") {
|
|
multFactor *= gradientUnits === "objectBoundingBox" ? object.height : 1;
|
|
addFactor = gradientUnits === "objectBoundingBox" ? object.top || 0 : 0;
|
|
}
|
|
options[prop] = propValue * multFactor + addFactor;
|
|
}
|
|
if (object.type === "ellipse" && options.r2 !== null && gradientUnits === "objectBoundingBox" && object.rx !== object.ry) {
|
|
var scaleFactor = object.ry / object.rx;
|
|
ellipseMatrix = " scale(1, " + scaleFactor + ")";
|
|
if (options.y1) {
|
|
options.y1 /= scaleFactor;
|
|
}
|
|
if (options.y2) {
|
|
options.y2 /= scaleFactor;
|
|
}
|
|
}
|
|
return ellipseMatrix;
|
|
}
|
|
})();
|
|
|
|
fabric.Pattern = fabric.util.createClass({
|
|
repeat: "repeat",
|
|
offsetX: 0,
|
|
offsetY: 0,
|
|
initialize: function(options) {
|
|
options || (options = {});
|
|
this.id = fabric.Object.__uid++;
|
|
if (options.source) {
|
|
if (typeof options.source === "string") {
|
|
if (typeof fabric.util.getFunctionBody(options.source) !== "undefined") {
|
|
this.source = new Function(fabric.util.getFunctionBody(options.source));
|
|
} else {
|
|
var _this = this;
|
|
this.source = fabric.util.createImage();
|
|
fabric.util.loadImage(options.source, function(img) {
|
|
_this.source = img;
|
|
});
|
|
}
|
|
} else {
|
|
this.source = options.source;
|
|
}
|
|
}
|
|
if (options.repeat) {
|
|
this.repeat = options.repeat;
|
|
}
|
|
if (options.offsetX) {
|
|
this.offsetX = options.offsetX;
|
|
}
|
|
if (options.offsetY) {
|
|
this.offsetY = options.offsetY;
|
|
}
|
|
},
|
|
toObject: function() {
|
|
var source;
|
|
if (typeof this.source === "function") {
|
|
source = String(this.source);
|
|
} else if (typeof this.source.src === "string") {
|
|
source = this.source.src;
|
|
} else if (typeof this.source === "object" && this.source.toDataURL) {
|
|
source = this.source.toDataURL();
|
|
}
|
|
return {
|
|
source: source,
|
|
repeat: this.repeat,
|
|
offsetX: this.offsetX,
|
|
offsetY: this.offsetY
|
|
};
|
|
},
|
|
toSVG: function(object) {
|
|
var patternSource = typeof this.source === "function" ? this.source() : this.source, patternWidth = patternSource.width / object.getWidth(), patternHeight = patternSource.height / object.getHeight(), patternOffsetX = this.offsetX / object.getWidth(), patternOffsetY = this.offsetY / object.getHeight(), patternImgSrc = "";
|
|
if (this.repeat === "repeat-x" || this.repeat === "no-repeat") {
|
|
patternHeight = 1;
|
|
}
|
|
if (this.repeat === "repeat-y" || this.repeat === "no-repeat") {
|
|
patternWidth = 1;
|
|
}
|
|
if (patternSource.src) {
|
|
patternImgSrc = patternSource.src;
|
|
} else if (patternSource.toDataURL) {
|
|
patternImgSrc = patternSource.toDataURL();
|
|
}
|
|
return '<pattern id="SVGID_' + this.id + '" x="' + patternOffsetX + '" y="' + patternOffsetY + '" width="' + patternWidth + '" height="' + patternHeight + '">\n' + '<image x="0" y="0"' + ' width="' + patternSource.width + '" height="' + patternSource.height + '" xlink:href="' + patternImgSrc + '"></image>\n' + "</pattern>\n";
|
|
},
|
|
toLive: function(ctx) {
|
|
var source = typeof this.source === "function" ? this.source() : this.source;
|
|
if (!source) {
|
|
return "";
|
|
}
|
|
if (typeof source.src !== "undefined") {
|
|
if (!source.complete) {
|
|
return "";
|
|
}
|
|
if (source.naturalWidth === 0 || source.naturalHeight === 0) {
|
|
return "";
|
|
}
|
|
}
|
|
return ctx.createPattern(source, this.repeat);
|
|
}
|
|
});
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), toFixed = fabric.util.toFixed;
|
|
if (fabric.Shadow) {
|
|
fabric.warn("fabric.Shadow is already defined.");
|
|
return;
|
|
}
|
|
fabric.Shadow = fabric.util.createClass({
|
|
color: "rgb(0,0,0)",
|
|
blur: 0,
|
|
offsetX: 0,
|
|
offsetY: 0,
|
|
affectStroke: false,
|
|
includeDefaultValues: true,
|
|
initialize: function(options) {
|
|
if (typeof options === "string") {
|
|
options = this._parseShadow(options);
|
|
}
|
|
for (var prop in options) {
|
|
this[prop] = options[prop];
|
|
}
|
|
this.id = fabric.Object.__uid++;
|
|
},
|
|
_parseShadow: function(shadow) {
|
|
var shadowStr = shadow.trim(), offsetsAndBlur = fabric.Shadow.reOffsetsAndBlur.exec(shadowStr) || [], color = shadowStr.replace(fabric.Shadow.reOffsetsAndBlur, "") || "rgb(0,0,0)";
|
|
return {
|
|
color: color.trim(),
|
|
offsetX: parseInt(offsetsAndBlur[1], 10) || 0,
|
|
offsetY: parseInt(offsetsAndBlur[2], 10) || 0,
|
|
blur: parseInt(offsetsAndBlur[3], 10) || 0
|
|
};
|
|
},
|
|
toString: function() {
|
|
return [ this.offsetX, this.offsetY, this.blur, this.color ].join("px ");
|
|
},
|
|
toSVG: function(object) {
|
|
var fBoxX = 40, fBoxY = 40, NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS, offset = fabric.util.rotateVector({
|
|
x: this.offsetX,
|
|
y: this.offsetY
|
|
}, fabric.util.degreesToRadians(-object.angle)), BLUR_BOX = 20;
|
|
if (object.width && object.height) {
|
|
fBoxX = toFixed((Math.abs(offset.x) + this.blur) / object.width, NUM_FRACTION_DIGITS) * 100 + BLUR_BOX;
|
|
fBoxY = toFixed((Math.abs(offset.y) + this.blur) / object.height, NUM_FRACTION_DIGITS) * 100 + BLUR_BOX;
|
|
}
|
|
if (object.flipX) {
|
|
offset.x *= -1;
|
|
}
|
|
if (object.flipY) {
|
|
offset.y *= -1;
|
|
}
|
|
return '<filter id="SVGID_' + this.id + '" y="-' + fBoxY + '%" height="' + (100 + 2 * fBoxY) + '%" ' + 'x="-' + fBoxX + '%" width="' + (100 + 2 * fBoxX) + '%" ' + ">\n" + '\t<feGaussianBlur in="SourceAlpha" stdDeviation="' + toFixed(this.blur ? this.blur / 2 : 0, NUM_FRACTION_DIGITS) + '"></feGaussianBlur>\n' + '\t<feOffset dx="' + toFixed(offset.x, NUM_FRACTION_DIGITS) + '" dy="' + toFixed(offset.y, NUM_FRACTION_DIGITS) + '" result="oBlur" ></feOffset>\n' + '\t<feFlood flood-color="' + this.color + '"/>\n' + '\t<feComposite in2="oBlur" operator="in" />\n' + "\t<feMerge>\n" + "\t\t<feMergeNode></feMergeNode>\n" + '\t\t<feMergeNode in="SourceGraphic"></feMergeNode>\n' + "\t</feMerge>\n" + "</filter>\n";
|
|
},
|
|
toObject: function() {
|
|
if (this.includeDefaultValues) {
|
|
return {
|
|
color: this.color,
|
|
blur: this.blur,
|
|
offsetX: this.offsetX,
|
|
offsetY: this.offsetY,
|
|
affectStroke: this.affectStroke
|
|
};
|
|
}
|
|
var obj = {}, proto = fabric.Shadow.prototype;
|
|
[ "color", "blur", "offsetX", "offsetY", "affectStroke" ].forEach(function(prop) {
|
|
if (this[prop] !== proto[prop]) {
|
|
obj[prop] = this[prop];
|
|
}
|
|
}, this);
|
|
return obj;
|
|
}
|
|
});
|
|
fabric.Shadow.reOffsetsAndBlur = /(?:\s|^)(-?\d+(?:px)?(?:\s?|$))?(-?\d+(?:px)?(?:\s?|$))?(\d+(?:px)?)?(?:\s?|$)(?:$|\s)/;
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function() {
|
|
"use strict";
|
|
if (fabric.StaticCanvas) {
|
|
fabric.warn("fabric.StaticCanvas is already defined.");
|
|
return;
|
|
}
|
|
var extend = fabric.util.object.extend, getElementOffset = fabric.util.getElementOffset, removeFromArray = fabric.util.removeFromArray, toFixed = fabric.util.toFixed, CANVAS_INIT_ERROR = new Error("Could not initialize `canvas` element");
|
|
fabric.StaticCanvas = fabric.util.createClass({
|
|
initialize: function(el, options) {
|
|
options || (options = {});
|
|
this._initStatic(el, options);
|
|
},
|
|
backgroundColor: "",
|
|
backgroundImage: null,
|
|
overlayColor: "",
|
|
overlayImage: null,
|
|
includeDefaultValues: true,
|
|
stateful: true,
|
|
renderOnAddRemove: true,
|
|
clipTo: null,
|
|
controlsAboveOverlay: false,
|
|
allowTouchScrolling: false,
|
|
imageSmoothingEnabled: true,
|
|
preserveObjectStacking: false,
|
|
viewportTransform: [ 1, 0, 0, 1, 0, 0 ],
|
|
backgroundVpt: true,
|
|
overlayVpt: true,
|
|
onBeforeScaleRotate: function() {},
|
|
enableRetinaScaling: true,
|
|
_initStatic: function(el, options) {
|
|
this._objects = [];
|
|
this._createLowerCanvas(el);
|
|
this._initOptions(options);
|
|
this._setImageSmoothing();
|
|
if (!this.interactive) {
|
|
this._initRetinaScaling();
|
|
}
|
|
if (options.overlayImage) {
|
|
this.setOverlayImage(options.overlayImage, this.renderAll.bind(this));
|
|
}
|
|
if (options.backgroundImage) {
|
|
this.setBackgroundImage(options.backgroundImage, this.renderAll.bind(this));
|
|
}
|
|
if (options.backgroundColor) {
|
|
this.setBackgroundColor(options.backgroundColor, this.renderAll.bind(this));
|
|
}
|
|
if (options.overlayColor) {
|
|
this.setOverlayColor(options.overlayColor, this.renderAll.bind(this));
|
|
}
|
|
this.calcOffset();
|
|
},
|
|
_isRetinaScaling: function() {
|
|
return fabric.devicePixelRatio !== 1 && this.enableRetinaScaling;
|
|
},
|
|
_initRetinaScaling: function() {
|
|
if (!this._isRetinaScaling()) {
|
|
return;
|
|
}
|
|
this.lowerCanvasEl.setAttribute("width", this.width * fabric.devicePixelRatio);
|
|
this.lowerCanvasEl.setAttribute("height", this.height * fabric.devicePixelRatio);
|
|
this.contextContainer.scale(fabric.devicePixelRatio, fabric.devicePixelRatio);
|
|
},
|
|
calcOffset: function() {
|
|
this._offset = getElementOffset(this.lowerCanvasEl);
|
|
return this;
|
|
},
|
|
setOverlayImage: function(image, callback, options) {
|
|
return this.__setBgOverlayImage("overlayImage", image, callback, options);
|
|
},
|
|
setBackgroundImage: function(image, callback, options) {
|
|
return this.__setBgOverlayImage("backgroundImage", image, callback, options);
|
|
},
|
|
setOverlayColor: function(overlayColor, callback) {
|
|
return this.__setBgOverlayColor("overlayColor", overlayColor, callback);
|
|
},
|
|
setBackgroundColor: function(backgroundColor, callback) {
|
|
return this.__setBgOverlayColor("backgroundColor", backgroundColor, callback);
|
|
},
|
|
_setImageSmoothing: function() {
|
|
var ctx = this.getContext();
|
|
ctx.imageSmoothingEnabled = ctx.imageSmoothingEnabled || ctx.webkitImageSmoothingEnabled || ctx.mozImageSmoothingEnabled || ctx.msImageSmoothingEnabled || ctx.oImageSmoothingEnabled;
|
|
ctx.imageSmoothingEnabled = this.imageSmoothingEnabled;
|
|
},
|
|
__setBgOverlayImage: function(property, image, callback, options) {
|
|
if (typeof image === "string") {
|
|
fabric.util.loadImage(image, function(img) {
|
|
img && (this[property] = new fabric.Image(img, options));
|
|
callback && callback(img);
|
|
}, this, options && options.crossOrigin);
|
|
} else {
|
|
options && image.setOptions(options);
|
|
this[property] = image;
|
|
callback && callback(image);
|
|
}
|
|
return this;
|
|
},
|
|
__setBgOverlayColor: function(property, color, callback) {
|
|
if (color && color.source) {
|
|
var _this = this;
|
|
fabric.util.loadImage(color.source, function(img) {
|
|
_this[property] = new fabric.Pattern({
|
|
source: img,
|
|
repeat: color.repeat,
|
|
offsetX: color.offsetX,
|
|
offsetY: color.offsetY
|
|
});
|
|
callback && callback();
|
|
});
|
|
} else {
|
|
this[property] = color;
|
|
callback && callback();
|
|
}
|
|
return this;
|
|
},
|
|
_createCanvasElement: function() {
|
|
var element = fabric.document.createElement("canvas");
|
|
if (!element.style) {
|
|
element.style = {};
|
|
}
|
|
if (!element) {
|
|
throw CANVAS_INIT_ERROR;
|
|
}
|
|
this._initCanvasElement(element);
|
|
return element;
|
|
},
|
|
_initCanvasElement: function(element) {
|
|
fabric.util.createCanvasElement(element);
|
|
if (typeof element.getContext === "undefined") {
|
|
throw CANVAS_INIT_ERROR;
|
|
}
|
|
},
|
|
_initOptions: function(options) {
|
|
for (var prop in options) {
|
|
this[prop] = options[prop];
|
|
}
|
|
this.width = this.width || parseInt(this.lowerCanvasEl.width, 10) || 0;
|
|
this.height = this.height || parseInt(this.lowerCanvasEl.height, 10) || 0;
|
|
if (!this.lowerCanvasEl.style) {
|
|
return;
|
|
}
|
|
this.lowerCanvasEl.width = this.width;
|
|
this.lowerCanvasEl.height = this.height;
|
|
this.lowerCanvasEl.style.width = this.width + "px";
|
|
this.lowerCanvasEl.style.height = this.height + "px";
|
|
this.viewportTransform = this.viewportTransform.slice();
|
|
},
|
|
_createLowerCanvas: function(canvasEl) {
|
|
this.lowerCanvasEl = fabric.util.getById(canvasEl) || this._createCanvasElement();
|
|
this._initCanvasElement(this.lowerCanvasEl);
|
|
fabric.util.addClass(this.lowerCanvasEl, "lower-canvas");
|
|
if (this.interactive) {
|
|
this._applyCanvasStyle(this.lowerCanvasEl);
|
|
}
|
|
this.contextContainer = this.lowerCanvasEl.getContext("2d");
|
|
},
|
|
getWidth: function() {
|
|
return this.width;
|
|
},
|
|
getHeight: function() {
|
|
return this.height;
|
|
},
|
|
setWidth: function(value, options) {
|
|
return this.setDimensions({
|
|
width: value
|
|
}, options);
|
|
},
|
|
setHeight: function(value, options) {
|
|
return this.setDimensions({
|
|
height: value
|
|
}, options);
|
|
},
|
|
setDimensions: function(dimensions, options) {
|
|
var cssValue;
|
|
options = options || {};
|
|
for (var prop in dimensions) {
|
|
cssValue = dimensions[prop];
|
|
if (!options.cssOnly) {
|
|
this._setBackstoreDimension(prop, dimensions[prop]);
|
|
cssValue += "px";
|
|
}
|
|
if (!options.backstoreOnly) {
|
|
this._setCssDimension(prop, cssValue);
|
|
}
|
|
}
|
|
this._initRetinaScaling();
|
|
this._setImageSmoothing();
|
|
this.calcOffset();
|
|
if (!options.cssOnly) {
|
|
this.renderAll();
|
|
}
|
|
return this;
|
|
},
|
|
_setBackstoreDimension: function(prop, value) {
|
|
this.lowerCanvasEl[prop] = value;
|
|
if (this.upperCanvasEl) {
|
|
this.upperCanvasEl[prop] = value;
|
|
}
|
|
if (this.cacheCanvasEl) {
|
|
this.cacheCanvasEl[prop] = value;
|
|
}
|
|
this[prop] = value;
|
|
return this;
|
|
},
|
|
_setCssDimension: function(prop, value) {
|
|
this.lowerCanvasEl.style[prop] = value;
|
|
if (this.upperCanvasEl) {
|
|
this.upperCanvasEl.style[prop] = value;
|
|
}
|
|
if (this.wrapperEl) {
|
|
this.wrapperEl.style[prop] = value;
|
|
}
|
|
return this;
|
|
},
|
|
getZoom: function() {
|
|
return Math.sqrt(this.viewportTransform[0] * this.viewportTransform[3]);
|
|
},
|
|
setViewportTransform: function(vpt) {
|
|
var activeGroup = this.getActiveGroup();
|
|
this.viewportTransform = vpt;
|
|
this.renderAll();
|
|
for (var i = 0, len = this._objects.length; i < len; i++) {
|
|
this._objects[i].setCoords();
|
|
}
|
|
if (activeGroup) {
|
|
activeGroup.setCoords();
|
|
}
|
|
return this;
|
|
},
|
|
zoomToPoint: function(point, value) {
|
|
var before = point;
|
|
point = fabric.util.transformPoint(point, fabric.util.invertTransform(this.viewportTransform));
|
|
this.viewportTransform[0] = value;
|
|
this.viewportTransform[3] = value;
|
|
var after = fabric.util.transformPoint(point, this.viewportTransform);
|
|
this.viewportTransform[4] += before.x - after.x;
|
|
this.viewportTransform[5] += before.y - after.y;
|
|
this.renderAll();
|
|
for (var i = 0, len = this._objects.length; i < len; i++) {
|
|
this._objects[i].setCoords();
|
|
}
|
|
return this;
|
|
},
|
|
setZoom: function(value) {
|
|
this.zoomToPoint(new fabric.Point(0, 0), value);
|
|
return this;
|
|
},
|
|
absolutePan: function(point) {
|
|
this.viewportTransform[4] = -point.x;
|
|
this.viewportTransform[5] = -point.y;
|
|
this.renderAll();
|
|
for (var i = 0, len = this._objects.length; i < len; i++) {
|
|
this._objects[i].setCoords();
|
|
}
|
|
return this;
|
|
},
|
|
relativePan: function(point) {
|
|
return this.absolutePan(new fabric.Point(-point.x - this.viewportTransform[4], -point.y - this.viewportTransform[5]));
|
|
},
|
|
getElement: function() {
|
|
return this.lowerCanvasEl;
|
|
},
|
|
getActiveObject: function() {
|
|
return null;
|
|
},
|
|
getActiveGroup: function() {
|
|
return null;
|
|
},
|
|
_onObjectAdded: function(obj) {
|
|
this.stateful && obj.setupState();
|
|
obj._set("canvas", this);
|
|
obj.setCoords();
|
|
this.fire("object:added", {
|
|
target: obj
|
|
});
|
|
obj.fire("added");
|
|
},
|
|
_onObjectRemoved: function(obj) {
|
|
if (this.getActiveObject() === obj) {
|
|
this.fire("before:selection:cleared", {
|
|
target: obj
|
|
});
|
|
this._discardActiveObject();
|
|
this.fire("selection:cleared");
|
|
}
|
|
this.fire("object:removed", {
|
|
target: obj
|
|
});
|
|
obj.fire("removed");
|
|
},
|
|
clearContext: function(ctx) {
|
|
ctx.clearRect(0, 0, this.width, this.height);
|
|
return this;
|
|
},
|
|
getContext: function() {
|
|
return this.contextContainer;
|
|
},
|
|
clear: function() {
|
|
this._objects.length = 0;
|
|
if (this.discardActiveGroup) {
|
|
this.discardActiveGroup();
|
|
}
|
|
if (this.discardActiveObject) {
|
|
this.discardActiveObject();
|
|
}
|
|
this.clearContext(this.contextContainer);
|
|
if (this.contextTop) {
|
|
this.clearContext(this.contextTop);
|
|
}
|
|
this.fire("canvas:cleared");
|
|
this.renderAll();
|
|
return this;
|
|
},
|
|
_chooseObjectsToRender: function() {
|
|
var activeGroup = this.getActiveGroup(), activeObject = this.getActiveObject(), object, objsToRender = [], activeGroupObjects = [];
|
|
if ((activeGroup || activeObject) && !this.preserveObjectStacking) {
|
|
for (var i = 0, length = this._objects.length; i < length; i++) {
|
|
object = this._objects[i];
|
|
if ((!activeGroup || !activeGroup.contains(object)) && object !== activeObject) {
|
|
objsToRender.push(object);
|
|
} else {
|
|
activeGroupObjects.push(object);
|
|
}
|
|
}
|
|
activeGroup && activeGroup._set("_objects", activeGroupObjects);
|
|
} else {
|
|
objsToRender = this._objects;
|
|
}
|
|
return objsToRender;
|
|
},
|
|
renderAll: function() {
|
|
var canvasToDrawOn = this.contextContainer, objsToRender;
|
|
if (this.contextTop && this.selection && !this._groupSelector && !this.isDrawingMode) {
|
|
this.clearContext(this.contextTop);
|
|
}
|
|
this.clearContext(canvasToDrawOn);
|
|
this.fire("before:render");
|
|
if (this.clipTo) {
|
|
fabric.util.clipContext(this, canvasToDrawOn);
|
|
}
|
|
this._renderBackground(canvasToDrawOn);
|
|
canvasToDrawOn.save();
|
|
objsToRender = this._chooseObjectsToRender();
|
|
canvasToDrawOn.transform.apply(canvasToDrawOn, this.viewportTransform);
|
|
this._renderObjects(canvasToDrawOn, objsToRender);
|
|
if (!this.preserveObjectStacking) {
|
|
objsToRender = [ this.getActiveGroup(), this.getActiveObject() ];
|
|
this._renderObjects(canvasToDrawOn, objsToRender);
|
|
}
|
|
canvasToDrawOn.restore();
|
|
if (!this.controlsAboveOverlay && this.interactive) {
|
|
this.drawControls(canvasToDrawOn);
|
|
}
|
|
if (this.clipTo) {
|
|
canvasToDrawOn.restore();
|
|
}
|
|
this._renderOverlay(canvasToDrawOn);
|
|
if (this.controlsAboveOverlay && this.interactive) {
|
|
this.drawControls(canvasToDrawOn);
|
|
}
|
|
this.fire("after:render");
|
|
return this;
|
|
},
|
|
_renderObjects: function(ctx, objects) {
|
|
for (var i = 0, length = objects.length; i < length; ++i) {
|
|
objects[i] && objects[i].render(ctx);
|
|
}
|
|
},
|
|
_renderBackgroundOrOverlay: function(ctx, property) {
|
|
var object = this[property + "Color"];
|
|
if (object) {
|
|
ctx.fillStyle = object.toLive ? object.toLive(ctx) : object;
|
|
ctx.fillRect(object.offsetX || 0, object.offsetY || 0, this.width, this.height);
|
|
}
|
|
object = this[property + "Image"];
|
|
if (object) {
|
|
if (this[property + "Vpt"]) {
|
|
ctx.save();
|
|
ctx.transform.apply(ctx, this.viewportTransform);
|
|
}
|
|
object.render(ctx);
|
|
this[property + "Vpt"] && ctx.restore();
|
|
}
|
|
},
|
|
_renderBackground: function(ctx) {
|
|
this._renderBackgroundOrOverlay(ctx, "background");
|
|
},
|
|
_renderOverlay: function(ctx) {
|
|
this._renderBackgroundOrOverlay(ctx, "overlay");
|
|
},
|
|
renderTop: function() {
|
|
var ctx = this.contextTop || this.contextContainer;
|
|
this.clearContext(ctx);
|
|
if (this.selection && this._groupSelector) {
|
|
this._drawSelection();
|
|
}
|
|
this.fire("after:render");
|
|
return this;
|
|
},
|
|
getCenter: function() {
|
|
return {
|
|
top: this.getHeight() / 2,
|
|
left: this.getWidth() / 2
|
|
};
|
|
},
|
|
centerObjectH: function(object) {
|
|
return this._centerObject(object, new fabric.Point(this.getCenter().left, object.getCenterPoint().y));
|
|
},
|
|
centerObjectV: function(object) {
|
|
return this._centerObject(object, new fabric.Point(object.getCenterPoint().x, this.getCenter().top));
|
|
},
|
|
centerObject: function(object) {
|
|
var center = this.getCenter();
|
|
return this._centerObject(object, new fabric.Point(center.left, center.top));
|
|
},
|
|
viewportCenterObject: function(object) {
|
|
var vpCenter = this.getVpCenter();
|
|
return this._centerObject(object, vpCenter);
|
|
},
|
|
viewportCenterObjectH: function(object) {
|
|
var vpCenter = this.getVpCenter();
|
|
this._centerObject(object, new fabric.Point(vpCenter.x, object.getCenterPoint().y));
|
|
return this;
|
|
},
|
|
viewportCenterObjectV: function(object) {
|
|
var vpCenter = this.getVpCenter();
|
|
return this._centerObject(object, new fabric.Point(object.getCenterPoint().x, vpCenter.y));
|
|
},
|
|
getVpCenter: function() {
|
|
var center = this.getCenter(), iVpt = fabric.util.invertTransform(this.viewportTransform);
|
|
return fabric.util.transformPoint({
|
|
x: center.left,
|
|
y: center.top
|
|
}, iVpt);
|
|
},
|
|
_centerObject: function(object, center) {
|
|
object.setPositionByOrigin(center, "center", "center");
|
|
this.renderAll();
|
|
return this;
|
|
},
|
|
toDatalessJSON: function(propertiesToInclude) {
|
|
return this.toDatalessObject(propertiesToInclude);
|
|
},
|
|
toObject: function(propertiesToInclude) {
|
|
return this._toObjectMethod("toObject", propertiesToInclude);
|
|
},
|
|
toDatalessObject: function(propertiesToInclude) {
|
|
return this._toObjectMethod("toDatalessObject", propertiesToInclude);
|
|
},
|
|
_toObjectMethod: function(methodName, propertiesToInclude) {
|
|
var data = {
|
|
objects: this._toObjects(methodName, propertiesToInclude)
|
|
};
|
|
extend(data, this.__serializeBgOverlay());
|
|
fabric.util.populateWithProperties(this, data, propertiesToInclude);
|
|
return data;
|
|
},
|
|
_toObjects: function(methodName, propertiesToInclude) {
|
|
return this.getObjects().filter(function(object) {
|
|
return !object.excludeFromExport;
|
|
}).map(function(instance) {
|
|
return this._toObject(instance, methodName, propertiesToInclude);
|
|
}, this);
|
|
},
|
|
_toObject: function(instance, methodName, propertiesToInclude) {
|
|
var originalValue;
|
|
if (!this.includeDefaultValues) {
|
|
originalValue = instance.includeDefaultValues;
|
|
instance.includeDefaultValues = false;
|
|
}
|
|
var originalProperties = this._realizeGroupTransformOnObject(instance), object = instance[methodName](propertiesToInclude);
|
|
if (!this.includeDefaultValues) {
|
|
instance.includeDefaultValues = originalValue;
|
|
}
|
|
this._unwindGroupTransformOnObject(instance, originalProperties);
|
|
return object;
|
|
},
|
|
_realizeGroupTransformOnObject: function(instance) {
|
|
var layoutProps = [ "angle", "flipX", "flipY", "height", "left", "scaleX", "scaleY", "top", "width" ];
|
|
if (instance.group && instance.group === this.getActiveGroup()) {
|
|
var originalValues = {};
|
|
layoutProps.forEach(function(prop) {
|
|
originalValues[prop] = instance[prop];
|
|
});
|
|
this.getActiveGroup().realizeTransform(instance);
|
|
return originalValues;
|
|
} else {
|
|
return null;
|
|
}
|
|
},
|
|
_unwindGroupTransformOnObject: function(instance, originalValues) {
|
|
if (originalValues) {
|
|
instance.set(originalValues);
|
|
}
|
|
},
|
|
__serializeBgOverlay: function() {
|
|
var data = {
|
|
background: this.backgroundColor && this.backgroundColor.toObject ? this.backgroundColor.toObject() : this.backgroundColor
|
|
};
|
|
if (this.overlayColor) {
|
|
data.overlay = this.overlayColor.toObject ? this.overlayColor.toObject() : this.overlayColor;
|
|
}
|
|
if (this.backgroundImage) {
|
|
data.backgroundImage = this.backgroundImage.toObject();
|
|
}
|
|
if (this.overlayImage) {
|
|
data.overlayImage = this.overlayImage.toObject();
|
|
}
|
|
return data;
|
|
},
|
|
svgViewportTransformation: true,
|
|
toSVG: function(options, reviver) {
|
|
options || (options = {});
|
|
var markup = [];
|
|
this._setSVGPreamble(markup, options);
|
|
this._setSVGHeader(markup, options);
|
|
this._setSVGBgOverlayColor(markup, "backgroundColor");
|
|
this._setSVGBgOverlayImage(markup, "backgroundImage", reviver);
|
|
this._setSVGObjects(markup, reviver);
|
|
this._setSVGBgOverlayColor(markup, "overlayColor");
|
|
this._setSVGBgOverlayImage(markup, "overlayImage", reviver);
|
|
markup.push("</svg>");
|
|
return markup.join("");
|
|
},
|
|
_setSVGPreamble: function(markup, options) {
|
|
if (options.suppressPreamble) {
|
|
return;
|
|
}
|
|
markup.push('<?xml version="1.0" encoding="', options.encoding || "UTF-8", '" standalone="no" ?>\n', '<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" ', '"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">\n');
|
|
},
|
|
_setSVGHeader: function(markup, options) {
|
|
var width = options.width || this.width, height = options.height || this.height, vpt, viewBox = 'viewBox="0 0 ' + this.width + " " + this.height + '" ', NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS;
|
|
if (options.viewBox) {
|
|
viewBox = 'viewBox="' + options.viewBox.x + " " + options.viewBox.y + " " + options.viewBox.width + " " + options.viewBox.height + '" ';
|
|
} else {
|
|
if (this.svgViewportTransformation) {
|
|
vpt = this.viewportTransform;
|
|
viewBox = 'viewBox="' + toFixed(-vpt[4] / vpt[0], NUM_FRACTION_DIGITS) + " " + toFixed(-vpt[5] / vpt[3], NUM_FRACTION_DIGITS) + " " + toFixed(this.width / vpt[0], NUM_FRACTION_DIGITS) + " " + toFixed(this.height / vpt[3], NUM_FRACTION_DIGITS) + '" ';
|
|
}
|
|
}
|
|
markup.push("<svg ", 'xmlns="http://www.w3.org/2000/svg" ', 'xmlns:xlink="http://www.w3.org/1999/xlink" ', 'version="1.1" ', 'width="', width, '" ', 'height="', height, '" ', this.backgroundColor && !this.backgroundColor.toLive ? 'style="background-color: ' + this.backgroundColor + '" ' : null, viewBox, 'xml:space="preserve">\n', "<desc>Created with Fabric.js ", fabric.version, "</desc>\n", "<defs>", fabric.createSVGFontFacesMarkup(this.getObjects()), fabric.createSVGRefElementsMarkup(this), "</defs>\n");
|
|
},
|
|
_setSVGObjects: function(markup, reviver) {
|
|
var instance, originalProperties;
|
|
for (var i = 0, objects = this.getObjects(), len = objects.length; i < len; i++) {
|
|
instance = objects[i];
|
|
if (instance.excludeFromExport) {
|
|
continue;
|
|
}
|
|
originalProperties = this._realizeGroupTransformOnObject(instance);
|
|
markup.push(instance.toSVG(reviver));
|
|
this._unwindGroupTransformOnObject(instance, originalProperties);
|
|
}
|
|
},
|
|
_setSVGBgOverlayImage: function(markup, property, reviver) {
|
|
if (this[property] && this[property].toSVG) {
|
|
markup.push(this[property].toSVG(reviver));
|
|
}
|
|
},
|
|
_setSVGBgOverlayColor: function(markup, property) {
|
|
if (this[property] && this[property].source) {
|
|
markup.push('<rect x="', this[property].offsetX, '" y="', this[property].offsetY, '" ', 'width="', this[property].repeat === "repeat-y" || this[property].repeat === "no-repeat" ? this[property].source.width : this.width, '" height="', this[property].repeat === "repeat-x" || this[property].repeat === "no-repeat" ? this[property].source.height : this.height, '" fill="url(#' + property + 'Pattern)"', "></rect>\n");
|
|
} else if (this[property] && property === "overlayColor") {
|
|
markup.push('<rect x="0" y="0" ', 'width="', this.width, '" height="', this.height, '" fill="', this[property], '"', "></rect>\n");
|
|
}
|
|
},
|
|
sendToBack: function(object) {
|
|
if (!object) {
|
|
return this;
|
|
}
|
|
var activeGroup = this.getActiveGroup ? this.getActiveGroup() : null, i, obj, objs;
|
|
if (object === activeGroup) {
|
|
objs = activeGroup._objects;
|
|
for (i = objs.length; i--; ) {
|
|
obj = objs[i];
|
|
removeFromArray(this._objects, obj);
|
|
this._objects.unshift(obj);
|
|
}
|
|
} else {
|
|
removeFromArray(this._objects, object);
|
|
this._objects.unshift(object);
|
|
}
|
|
return this.renderAll && this.renderAll();
|
|
},
|
|
bringToFront: function(object) {
|
|
if (!object) {
|
|
return this;
|
|
}
|
|
var activeGroup = this.getActiveGroup ? this.getActiveGroup() : null, i, obj, objs;
|
|
if (object === activeGroup) {
|
|
objs = activeGroup._objects;
|
|
for (i = 0; i < objs.length; i++) {
|
|
obj = objs[i];
|
|
removeFromArray(this._objects, obj);
|
|
this._objects.push(obj);
|
|
}
|
|
} else {
|
|
removeFromArray(this._objects, object);
|
|
this._objects.push(object);
|
|
}
|
|
return this.renderAll && this.renderAll();
|
|
},
|
|
sendBackwards: function(object, intersecting) {
|
|
if (!object) {
|
|
return this;
|
|
}
|
|
var activeGroup = this.getActiveGroup ? this.getActiveGroup() : null, i, obj, idx, newIdx, objs;
|
|
if (object === activeGroup) {
|
|
objs = activeGroup._objects;
|
|
for (i = 0; i < objs.length; i++) {
|
|
obj = objs[i];
|
|
idx = this._objects.indexOf(obj);
|
|
if (idx !== 0) {
|
|
newIdx = idx - 1;
|
|
removeFromArray(this._objects, obj);
|
|
this._objects.splice(newIdx, 0, obj);
|
|
}
|
|
}
|
|
} else {
|
|
idx = this._objects.indexOf(object);
|
|
if (idx !== 0) {
|
|
newIdx = this._findNewLowerIndex(object, idx, intersecting);
|
|
removeFromArray(this._objects, object);
|
|
this._objects.splice(newIdx, 0, object);
|
|
}
|
|
}
|
|
this.renderAll && this.renderAll();
|
|
return this;
|
|
},
|
|
_findNewLowerIndex: function(object, idx, intersecting) {
|
|
var newIdx;
|
|
if (intersecting) {
|
|
newIdx = idx;
|
|
for (var i = idx - 1; i >= 0; --i) {
|
|
var isIntersecting = object.intersectsWithObject(this._objects[i]) || object.isContainedWithinObject(this._objects[i]) || this._objects[i].isContainedWithinObject(object);
|
|
if (isIntersecting) {
|
|
newIdx = i;
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
newIdx = idx - 1;
|
|
}
|
|
return newIdx;
|
|
},
|
|
bringForward: function(object, intersecting) {
|
|
if (!object) {
|
|
return this;
|
|
}
|
|
var activeGroup = this.getActiveGroup ? this.getActiveGroup() : null, i, obj, idx, newIdx, objs;
|
|
if (object === activeGroup) {
|
|
objs = activeGroup._objects;
|
|
for (i = objs.length; i--; ) {
|
|
obj = objs[i];
|
|
idx = this._objects.indexOf(obj);
|
|
if (idx !== this._objects.length - 1) {
|
|
newIdx = idx + 1;
|
|
removeFromArray(this._objects, obj);
|
|
this._objects.splice(newIdx, 0, obj);
|
|
}
|
|
}
|
|
} else {
|
|
idx = this._objects.indexOf(object);
|
|
if (idx !== this._objects.length - 1) {
|
|
newIdx = this._findNewUpperIndex(object, idx, intersecting);
|
|
removeFromArray(this._objects, object);
|
|
this._objects.splice(newIdx, 0, object);
|
|
}
|
|
}
|
|
this.renderAll && this.renderAll();
|
|
return this;
|
|
},
|
|
_findNewUpperIndex: function(object, idx, intersecting) {
|
|
var newIdx;
|
|
if (intersecting) {
|
|
newIdx = idx;
|
|
for (var i = idx + 1; i < this._objects.length; ++i) {
|
|
var isIntersecting = object.intersectsWithObject(this._objects[i]) || object.isContainedWithinObject(this._objects[i]) || this._objects[i].isContainedWithinObject(object);
|
|
if (isIntersecting) {
|
|
newIdx = i;
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
newIdx = idx + 1;
|
|
}
|
|
return newIdx;
|
|
},
|
|
moveTo: function(object, index) {
|
|
removeFromArray(this._objects, object);
|
|
this._objects.splice(index, 0, object);
|
|
return this.renderAll && this.renderAll();
|
|
},
|
|
dispose: function() {
|
|
this.clear();
|
|
return this;
|
|
},
|
|
toString: function() {
|
|
return "#<fabric.Canvas (" + this.complexity() + "): " + "{ objects: " + this.getObjects().length + " }>";
|
|
}
|
|
});
|
|
extend(fabric.StaticCanvas.prototype, fabric.Observable);
|
|
extend(fabric.StaticCanvas.prototype, fabric.Collection);
|
|
extend(fabric.StaticCanvas.prototype, fabric.DataURLExporter);
|
|
extend(fabric.StaticCanvas, {
|
|
EMPTY_JSON: '{"objects": [], "background": "white"}',
|
|
supports: function(methodName) {
|
|
var el = fabric.util.createCanvasElement();
|
|
if (!el || !el.getContext) {
|
|
return null;
|
|
}
|
|
var ctx = el.getContext("2d");
|
|
if (!ctx) {
|
|
return null;
|
|
}
|
|
switch (methodName) {
|
|
case "getImageData":
|
|
return typeof ctx.getImageData !== "undefined";
|
|
|
|
case "setLineDash":
|
|
return typeof ctx.setLineDash !== "undefined";
|
|
|
|
case "toDataURL":
|
|
return typeof el.toDataURL !== "undefined";
|
|
|
|
case "toDataURLWithQuality":
|
|
try {
|
|
el.toDataURL("image/jpeg", 0);
|
|
return true;
|
|
} catch (e) {}
|
|
return false;
|
|
|
|
default:
|
|
return null;
|
|
}
|
|
}
|
|
});
|
|
fabric.StaticCanvas.prototype.toJSON = fabric.StaticCanvas.prototype.toObject;
|
|
})();
|
|
|
|
fabric.BaseBrush = fabric.util.createClass({
|
|
color: "rgb(0, 0, 0)",
|
|
width: 1,
|
|
shadow: null,
|
|
strokeLineCap: "round",
|
|
strokeLineJoin: "round",
|
|
strokeDashArray: null,
|
|
setShadow: function(options) {
|
|
this.shadow = new fabric.Shadow(options);
|
|
return this;
|
|
},
|
|
_setBrushStyles: function() {
|
|
var ctx = this.canvas.contextTop;
|
|
ctx.strokeStyle = this.color;
|
|
ctx.lineWidth = this.width;
|
|
ctx.lineCap = this.strokeLineCap;
|
|
ctx.lineJoin = this.strokeLineJoin;
|
|
if (this.strokeDashArray && fabric.StaticCanvas.supports("setLineDash")) {
|
|
ctx.setLineDash(this.strokeDashArray);
|
|
}
|
|
},
|
|
_setShadow: function() {
|
|
if (!this.shadow) {
|
|
return;
|
|
}
|
|
var ctx = this.canvas.contextTop;
|
|
ctx.shadowColor = this.shadow.color;
|
|
ctx.shadowBlur = this.shadow.blur;
|
|
ctx.shadowOffsetX = this.shadow.offsetX;
|
|
ctx.shadowOffsetY = this.shadow.offsetY;
|
|
},
|
|
_resetShadow: function() {
|
|
var ctx = this.canvas.contextTop;
|
|
ctx.shadowColor = "";
|
|
ctx.shadowBlur = ctx.shadowOffsetX = ctx.shadowOffsetY = 0;
|
|
}
|
|
});
|
|
|
|
(function() {
|
|
fabric.PencilBrush = fabric.util.createClass(fabric.BaseBrush, {
|
|
initialize: function(canvas) {
|
|
this.canvas = canvas;
|
|
this._points = [];
|
|
},
|
|
onMouseDown: function(pointer) {
|
|
this._prepareForDrawing(pointer);
|
|
this._captureDrawingPath(pointer);
|
|
this._render();
|
|
},
|
|
onMouseMove: function(pointer) {
|
|
this._captureDrawingPath(pointer);
|
|
this.canvas.clearContext(this.canvas.contextTop);
|
|
this._render();
|
|
},
|
|
onMouseUp: function() {
|
|
this._finalizeAndAddPath();
|
|
},
|
|
_prepareForDrawing: function(pointer) {
|
|
var p = new fabric.Point(pointer.x, pointer.y);
|
|
this._reset();
|
|
this._addPoint(p);
|
|
this.canvas.contextTop.moveTo(p.x, p.y);
|
|
},
|
|
_addPoint: function(point) {
|
|
this._points.push(point);
|
|
},
|
|
_reset: function() {
|
|
this._points.length = 0;
|
|
this._setBrushStyles();
|
|
this._setShadow();
|
|
},
|
|
_captureDrawingPath: function(pointer) {
|
|
var pointerPoint = new fabric.Point(pointer.x, pointer.y);
|
|
this._addPoint(pointerPoint);
|
|
},
|
|
_render: function() {
|
|
var ctx = this.canvas.contextTop, v = this.canvas.viewportTransform, p1 = this._points[0], p2 = this._points[1];
|
|
ctx.save();
|
|
ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);
|
|
ctx.beginPath();
|
|
if (this._points.length === 2 && p1.x === p2.x && p1.y === p2.y) {
|
|
p1.x -= .5;
|
|
p2.x += .5;
|
|
}
|
|
ctx.moveTo(p1.x, p1.y);
|
|
for (var i = 1, len = this._points.length; i < len; i++) {
|
|
var midPoint = p1.midPointFrom(p2);
|
|
ctx.quadraticCurveTo(p1.x, p1.y, midPoint.x, midPoint.y);
|
|
p1 = this._points[i];
|
|
p2 = this._points[i + 1];
|
|
}
|
|
ctx.lineTo(p1.x, p1.y);
|
|
ctx.stroke();
|
|
ctx.restore();
|
|
},
|
|
convertPointsToSVGPath: function(points) {
|
|
var path = [], p1 = new fabric.Point(points[0].x, points[0].y), p2 = new fabric.Point(points[1].x, points[1].y);
|
|
path.push("M ", points[0].x, " ", points[0].y, " ");
|
|
for (var i = 1, len = points.length; i < len; i++) {
|
|
var midPoint = p1.midPointFrom(p2);
|
|
path.push("Q ", p1.x, " ", p1.y, " ", midPoint.x, " ", midPoint.y, " ");
|
|
p1 = new fabric.Point(points[i].x, points[i].y);
|
|
if (i + 1 < points.length) {
|
|
p2 = new fabric.Point(points[i + 1].x, points[i + 1].y);
|
|
}
|
|
}
|
|
path.push("L ", p1.x, " ", p1.y, " ");
|
|
return path;
|
|
},
|
|
createPath: function(pathData) {
|
|
var path = new fabric.Path(pathData, {
|
|
fill: null,
|
|
stroke: this.color,
|
|
strokeWidth: this.width,
|
|
strokeLineCap: this.strokeLineCap,
|
|
strokeLineJoin: this.strokeLineJoin,
|
|
strokeDashArray: this.strokeDashArray,
|
|
originX: "center",
|
|
originY: "center"
|
|
});
|
|
if (this.shadow) {
|
|
this.shadow.affectStroke = true;
|
|
path.setShadow(this.shadow);
|
|
}
|
|
return path;
|
|
},
|
|
_finalizeAndAddPath: function() {
|
|
var ctx = this.canvas.contextTop;
|
|
ctx.closePath();
|
|
var pathData = this.convertPointsToSVGPath(this._points).join("");
|
|
if (pathData === "M 0 0 Q 0 0 0 0 L 0 0") {
|
|
this.canvas.renderAll();
|
|
return;
|
|
}
|
|
var path = this.createPath(pathData);
|
|
this.canvas.add(path);
|
|
path.setCoords();
|
|
this.canvas.clearContext(this.canvas.contextTop);
|
|
this._resetShadow();
|
|
this.canvas.renderAll();
|
|
this.canvas.fire("path:created", {
|
|
path: path
|
|
});
|
|
}
|
|
});
|
|
})();
|
|
|
|
fabric.CircleBrush = fabric.util.createClass(fabric.BaseBrush, {
|
|
width: 10,
|
|
initialize: function(canvas) {
|
|
this.canvas = canvas;
|
|
this.points = [];
|
|
},
|
|
drawDot: function(pointer) {
|
|
var point = this.addPoint(pointer), ctx = this.canvas.contextTop, v = this.canvas.viewportTransform;
|
|
ctx.save();
|
|
ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);
|
|
ctx.fillStyle = point.fill;
|
|
ctx.beginPath();
|
|
ctx.arc(point.x, point.y, point.radius, 0, Math.PI * 2, false);
|
|
ctx.closePath();
|
|
ctx.fill();
|
|
ctx.restore();
|
|
},
|
|
onMouseDown: function(pointer) {
|
|
this.points.length = 0;
|
|
this.canvas.clearContext(this.canvas.contextTop);
|
|
this._setShadow();
|
|
this.drawDot(pointer);
|
|
},
|
|
onMouseMove: function(pointer) {
|
|
this.drawDot(pointer);
|
|
},
|
|
onMouseUp: function() {
|
|
var originalRenderOnAddRemove = this.canvas.renderOnAddRemove;
|
|
this.canvas.renderOnAddRemove = false;
|
|
var circles = [];
|
|
for (var i = 0, len = this.points.length; i < len; i++) {
|
|
var point = this.points[i], circle = new fabric.Circle({
|
|
radius: point.radius,
|
|
left: point.x,
|
|
top: point.y,
|
|
originX: "center",
|
|
originY: "center",
|
|
fill: point.fill
|
|
});
|
|
this.shadow && circle.setShadow(this.shadow);
|
|
circles.push(circle);
|
|
}
|
|
var group = new fabric.Group(circles, {
|
|
originX: "center",
|
|
originY: "center"
|
|
});
|
|
group.canvas = this.canvas;
|
|
this.canvas.add(group);
|
|
this.canvas.fire("path:created", {
|
|
path: group
|
|
});
|
|
this.canvas.clearContext(this.canvas.contextTop);
|
|
this._resetShadow();
|
|
this.canvas.renderOnAddRemove = originalRenderOnAddRemove;
|
|
this.canvas.renderAll();
|
|
},
|
|
addPoint: function(pointer) {
|
|
var pointerPoint = new fabric.Point(pointer.x, pointer.y), circleRadius = fabric.util.getRandomInt(Math.max(0, this.width - 20), this.width + 20) / 2, circleColor = new fabric.Color(this.color).setAlpha(fabric.util.getRandomInt(0, 100) / 100).toRgba();
|
|
pointerPoint.radius = circleRadius;
|
|
pointerPoint.fill = circleColor;
|
|
this.points.push(pointerPoint);
|
|
return pointerPoint;
|
|
}
|
|
});
|
|
|
|
fabric.SprayBrush = fabric.util.createClass(fabric.BaseBrush, {
|
|
width: 10,
|
|
density: 20,
|
|
dotWidth: 1,
|
|
dotWidthVariance: 1,
|
|
randomOpacity: false,
|
|
optimizeOverlapping: true,
|
|
initialize: function(canvas) {
|
|
this.canvas = canvas;
|
|
this.sprayChunks = [];
|
|
},
|
|
onMouseDown: function(pointer) {
|
|
this.sprayChunks.length = 0;
|
|
this.canvas.clearContext(this.canvas.contextTop);
|
|
this._setShadow();
|
|
this.addSprayChunk(pointer);
|
|
this.render();
|
|
},
|
|
onMouseMove: function(pointer) {
|
|
this.addSprayChunk(pointer);
|
|
this.render();
|
|
},
|
|
onMouseUp: function() {
|
|
var originalRenderOnAddRemove = this.canvas.renderOnAddRemove;
|
|
this.canvas.renderOnAddRemove = false;
|
|
var rects = [];
|
|
for (var i = 0, ilen = this.sprayChunks.length; i < ilen; i++) {
|
|
var sprayChunk = this.sprayChunks[i];
|
|
for (var j = 0, jlen = sprayChunk.length; j < jlen; j++) {
|
|
var rect = new fabric.Rect({
|
|
width: sprayChunk[j].width,
|
|
height: sprayChunk[j].width,
|
|
left: sprayChunk[j].x + 1,
|
|
top: sprayChunk[j].y + 1,
|
|
originX: "center",
|
|
originY: "center",
|
|
fill: this.color
|
|
});
|
|
this.shadow && rect.setShadow(this.shadow);
|
|
rects.push(rect);
|
|
}
|
|
}
|
|
if (this.optimizeOverlapping) {
|
|
rects = this._getOptimizedRects(rects);
|
|
}
|
|
var group = new fabric.Group(rects, {
|
|
originX: "center",
|
|
originY: "center"
|
|
});
|
|
group.canvas = this.canvas;
|
|
this.canvas.add(group);
|
|
this.canvas.fire("path:created", {
|
|
path: group
|
|
});
|
|
this.canvas.clearContext(this.canvas.contextTop);
|
|
this._resetShadow();
|
|
this.canvas.renderOnAddRemove = originalRenderOnAddRemove;
|
|
this.canvas.renderAll();
|
|
},
|
|
_getOptimizedRects: function(rects) {
|
|
var uniqueRects = {}, key;
|
|
for (var i = 0, len = rects.length; i < len; i++) {
|
|
key = rects[i].left + "" + rects[i].top;
|
|
if (!uniqueRects[key]) {
|
|
uniqueRects[key] = rects[i];
|
|
}
|
|
}
|
|
var uniqueRectsArray = [];
|
|
for (key in uniqueRects) {
|
|
uniqueRectsArray.push(uniqueRects[key]);
|
|
}
|
|
return uniqueRectsArray;
|
|
},
|
|
render: function() {
|
|
var ctx = this.canvas.contextTop;
|
|
ctx.fillStyle = this.color;
|
|
var v = this.canvas.viewportTransform;
|
|
ctx.save();
|
|
ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);
|
|
for (var i = 0, len = this.sprayChunkPoints.length; i < len; i++) {
|
|
var point = this.sprayChunkPoints[i];
|
|
if (typeof point.opacity !== "undefined") {
|
|
ctx.globalAlpha = point.opacity;
|
|
}
|
|
ctx.fillRect(point.x, point.y, point.width, point.width);
|
|
}
|
|
ctx.restore();
|
|
},
|
|
addSprayChunk: function(pointer) {
|
|
this.sprayChunkPoints = [];
|
|
var x, y, width, radius = this.width / 2;
|
|
for (var i = 0; i < this.density; i++) {
|
|
x = fabric.util.getRandomInt(pointer.x - radius, pointer.x + radius);
|
|
y = fabric.util.getRandomInt(pointer.y - radius, pointer.y + radius);
|
|
if (this.dotWidthVariance) {
|
|
width = fabric.util.getRandomInt(Math.max(1, this.dotWidth - this.dotWidthVariance), this.dotWidth + this.dotWidthVariance);
|
|
} else {
|
|
width = this.dotWidth;
|
|
}
|
|
var point = new fabric.Point(x, y);
|
|
point.width = width;
|
|
if (this.randomOpacity) {
|
|
point.opacity = fabric.util.getRandomInt(0, 100) / 100;
|
|
}
|
|
this.sprayChunkPoints.push(point);
|
|
}
|
|
this.sprayChunks.push(this.sprayChunkPoints);
|
|
}
|
|
});
|
|
|
|
fabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, {
|
|
getPatternSrc: function() {
|
|
var dotWidth = 20, dotDistance = 5, patternCanvas = fabric.document.createElement("canvas"), patternCtx = patternCanvas.getContext("2d");
|
|
patternCanvas.width = patternCanvas.height = dotWidth + dotDistance;
|
|
patternCtx.fillStyle = this.color;
|
|
patternCtx.beginPath();
|
|
patternCtx.arc(dotWidth / 2, dotWidth / 2, dotWidth / 2, 0, Math.PI * 2, false);
|
|
patternCtx.closePath();
|
|
patternCtx.fill();
|
|
return patternCanvas;
|
|
},
|
|
getPatternSrcFunction: function() {
|
|
return String(this.getPatternSrc).replace("this.color", '"' + this.color + '"');
|
|
},
|
|
getPattern: function() {
|
|
return this.canvas.contextTop.createPattern(this.source || this.getPatternSrc(), "repeat");
|
|
},
|
|
_setBrushStyles: function() {
|
|
this.callSuper("_setBrushStyles");
|
|
this.canvas.contextTop.strokeStyle = this.getPattern();
|
|
},
|
|
createPath: function(pathData) {
|
|
var path = this.callSuper("createPath", pathData), topLeft = path._getLeftTopCoords().scalarAdd(path.strokeWidth / 2);
|
|
path.stroke = new fabric.Pattern({
|
|
source: this.source || this.getPatternSrcFunction(),
|
|
offsetX: -topLeft.x,
|
|
offsetY: -topLeft.y
|
|
});
|
|
return path;
|
|
}
|
|
});
|
|
|
|
(function() {
|
|
var getPointer = fabric.util.getPointer, degreesToRadians = fabric.util.degreesToRadians, radiansToDegrees = fabric.util.radiansToDegrees, atan2 = Math.atan2, abs = Math.abs, STROKE_OFFSET = .5;
|
|
fabric.Canvas = fabric.util.createClass(fabric.StaticCanvas, {
|
|
initialize: function(el, options) {
|
|
options || (options = {});
|
|
this._initStatic(el, options);
|
|
this._initInteractive();
|
|
this._createCacheCanvas();
|
|
},
|
|
uniScaleTransform: false,
|
|
uniScaleKey: "shiftKey",
|
|
centeredScaling: false,
|
|
centeredRotation: false,
|
|
centeredKey: "altKey",
|
|
altActionKey: "shiftKey",
|
|
interactive: true,
|
|
selection: true,
|
|
selectionKey: "shiftKey",
|
|
selectionColor: "rgba(100, 100, 255, 0.3)",
|
|
selectionDashArray: [],
|
|
selectionBorderColor: "rgba(255, 255, 255, 0.3)",
|
|
selectionLineWidth: 1,
|
|
hoverCursor: "move",
|
|
moveCursor: "move",
|
|
defaultCursor: "default",
|
|
freeDrawingCursor: "crosshair",
|
|
rotationCursor: "crosshair",
|
|
containerClass: "canvas-container",
|
|
perPixelTargetFind: false,
|
|
targetFindTolerance: 0,
|
|
skipTargetFind: false,
|
|
isDrawingMode: false,
|
|
_initInteractive: function() {
|
|
this._currentTransform = null;
|
|
this._groupSelector = null;
|
|
this._initWrapperElement();
|
|
this._createUpperCanvas();
|
|
this._initEventListeners();
|
|
this._initRetinaScaling();
|
|
this.freeDrawingBrush = fabric.PencilBrush && new fabric.PencilBrush(this);
|
|
this.calcOffset();
|
|
},
|
|
_resetCurrentTransform: function() {
|
|
var t = this._currentTransform;
|
|
t.target.set({
|
|
scaleX: t.original.scaleX,
|
|
scaleY: t.original.scaleY,
|
|
skewX: t.original.skewX,
|
|
skewY: t.original.skewY,
|
|
left: t.original.left,
|
|
top: t.original.top
|
|
});
|
|
if (this._shouldCenterTransform(t.target)) {
|
|
if (t.action === "rotate") {
|
|
this._setOriginToCenter(t.target);
|
|
} else {
|
|
if (t.originX !== "center") {
|
|
if (t.originX === "right") {
|
|
t.mouseXSign = -1;
|
|
} else {
|
|
t.mouseXSign = 1;
|
|
}
|
|
}
|
|
if (t.originY !== "center") {
|
|
if (t.originY === "bottom") {
|
|
t.mouseYSign = -1;
|
|
} else {
|
|
t.mouseYSign = 1;
|
|
}
|
|
}
|
|
t.originX = "center";
|
|
t.originY = "center";
|
|
}
|
|
} else {
|
|
t.originX = t.original.originX;
|
|
t.originY = t.original.originY;
|
|
}
|
|
},
|
|
containsPoint: function(e, target, point) {
|
|
var pointer = point || this.getPointer(e, true), xy = this._normalizePointer(target, pointer);
|
|
if (target.group && target.group === this.getActiveGroup()) {
|
|
xy = this._normalizePointer(target.group, pointer);
|
|
} else {
|
|
xy = {
|
|
x: pointer.x,
|
|
y: pointer.y
|
|
};
|
|
}
|
|
return target.containsPoint(xy) || target._findTargetCorner(pointer);
|
|
},
|
|
_normalizePointer: function(object, pointer) {
|
|
var lt, m;
|
|
m = fabric.util.multiplyTransformMatrices(this.viewportTransform, object.calcTransformMatrix());
|
|
m = fabric.util.invertTransform(m);
|
|
pointer = fabric.util.transformPoint(pointer, m, false);
|
|
lt = fabric.util.transformPoint(object.getCenterPoint(), m, false);
|
|
pointer.x -= lt.x;
|
|
pointer.y -= lt.y;
|
|
return {
|
|
x: pointer.x,
|
|
y: pointer.y
|
|
};
|
|
},
|
|
isTargetTransparent: function(target, x, y) {
|
|
var hasBorders = target.hasBorders, transparentCorners = target.transparentCorners, ctx = this.contextCache, originalColor = target.selectionBackgroundColor;
|
|
target.hasBorders = target.transparentCorners = false;
|
|
target.selectionBackgroundColor = "";
|
|
ctx.save();
|
|
ctx.transform.apply(ctx, this.viewportTransform);
|
|
target.render(ctx);
|
|
ctx.restore();
|
|
target.active && target._renderControls(ctx);
|
|
target.hasBorders = hasBorders;
|
|
target.transparentCorners = transparentCorners;
|
|
target.selectionBackgroundColor = originalColor;
|
|
var isTransparent = fabric.util.isTransparent(ctx, x, y, this.targetFindTolerance);
|
|
this.clearContext(ctx);
|
|
return isTransparent;
|
|
},
|
|
_shouldClearSelection: function(e, target) {
|
|
var activeGroup = this.getActiveGroup(), activeObject = this.getActiveObject();
|
|
return !target || target && activeGroup && !activeGroup.contains(target) && activeGroup !== target && !e[this.selectionKey] || target && !target.evented || target && !target.selectable && activeObject && activeObject !== target;
|
|
},
|
|
_shouldCenterTransform: function(target) {
|
|
if (!target) {
|
|
return;
|
|
}
|
|
var t = this._currentTransform, centerTransform;
|
|
if (t.action === "scale" || t.action === "scaleX" || t.action === "scaleY") {
|
|
centerTransform = this.centeredScaling || target.centeredScaling;
|
|
} else if (t.action === "rotate") {
|
|
centerTransform = this.centeredRotation || target.centeredRotation;
|
|
}
|
|
return centerTransform ? !t.altKey : t.altKey;
|
|
},
|
|
_getOriginFromCorner: function(target, corner) {
|
|
var origin = {
|
|
x: target.originX,
|
|
y: target.originY
|
|
};
|
|
if (corner === "ml" || corner === "tl" || corner === "bl") {
|
|
origin.x = "right";
|
|
} else if (corner === "mr" || corner === "tr" || corner === "br") {
|
|
origin.x = "left";
|
|
}
|
|
if (corner === "tl" || corner === "mt" || corner === "tr") {
|
|
origin.y = "bottom";
|
|
} else if (corner === "bl" || corner === "mb" || corner === "br") {
|
|
origin.y = "top";
|
|
}
|
|
return origin;
|
|
},
|
|
_getActionFromCorner: function(target, corner, e) {
|
|
if (!corner) {
|
|
return "drag";
|
|
}
|
|
switch (corner) {
|
|
case "mtr":
|
|
return "rotate";
|
|
|
|
case "ml":
|
|
case "mr":
|
|
return e[this.altActionKey] ? "skewY" : "scaleX";
|
|
|
|
case "mt":
|
|
case "mb":
|
|
return e[this.altActionKey] ? "skewX" : "scaleY";
|
|
|
|
default:
|
|
return "scale";
|
|
}
|
|
},
|
|
_setupCurrentTransform: function(e, target) {
|
|
if (!target) {
|
|
return;
|
|
}
|
|
var pointer = this.getPointer(e), corner = target._findTargetCorner(this.getPointer(e, true)), action = this._getActionFromCorner(target, corner, e), origin = this._getOriginFromCorner(target, corner);
|
|
this._currentTransform = {
|
|
target: target,
|
|
action: action,
|
|
corner: corner,
|
|
scaleX: target.scaleX,
|
|
scaleY: target.scaleY,
|
|
skewX: target.skewX,
|
|
skewY: target.skewY,
|
|
offsetX: pointer.x - target.left,
|
|
offsetY: pointer.y - target.top,
|
|
originX: origin.x,
|
|
originY: origin.y,
|
|
ex: pointer.x,
|
|
ey: pointer.y,
|
|
lastX: pointer.x,
|
|
lastY: pointer.y,
|
|
left: target.left,
|
|
top: target.top,
|
|
theta: degreesToRadians(target.angle),
|
|
width: target.width * target.scaleX,
|
|
mouseXSign: 1,
|
|
mouseYSign: 1,
|
|
shiftKey: e.shiftKey,
|
|
altKey: e[this.centeredKey]
|
|
};
|
|
this._currentTransform.original = {
|
|
left: target.left,
|
|
top: target.top,
|
|
scaleX: target.scaleX,
|
|
scaleY: target.scaleY,
|
|
skewX: target.skewX,
|
|
skewY: target.skewY,
|
|
originX: origin.x,
|
|
originY: origin.y
|
|
};
|
|
this._resetCurrentTransform();
|
|
},
|
|
_translateObject: function(x, y) {
|
|
var transform = this._currentTransform, target = transform.target, newLeft = x - transform.offsetX, newTop = y - transform.offsetY, moveX = !target.get("lockMovementX") && target.left !== newLeft, moveY = !target.get("lockMovementY") && target.top !== newTop;
|
|
moveX && target.set("left", newLeft);
|
|
moveY && target.set("top", newTop);
|
|
return moveX || moveY;
|
|
},
|
|
_changeSkewTransformOrigin: function(mouseMove, t, by) {
|
|
var property = "originX", origins = {
|
|
0: "center"
|
|
}, skew = t.target.skewX, originA = "left", originB = "right", corner = t.corner === "mt" || t.corner === "ml" ? 1 : -1, flipSign = 1;
|
|
mouseMove = mouseMove > 0 ? 1 : -1;
|
|
if (by === "y") {
|
|
skew = t.target.skewY;
|
|
originA = "top";
|
|
originB = "bottom";
|
|
property = "originY";
|
|
}
|
|
origins[-1] = originA;
|
|
origins[1] = originB;
|
|
t.target.flipX && (flipSign *= -1);
|
|
t.target.flipY && (flipSign *= -1);
|
|
if (skew === 0) {
|
|
t.skewSign = -corner * mouseMove * flipSign;
|
|
t[property] = origins[-mouseMove];
|
|
} else {
|
|
skew = skew > 0 ? 1 : -1;
|
|
t.skewSign = skew;
|
|
t[property] = origins[skew * corner * flipSign];
|
|
}
|
|
},
|
|
_skewObject: function(x, y, by) {
|
|
var t = this._currentTransform, target = t.target, skewed = false, lockSkewingX = target.get("lockSkewingX"), lockSkewingY = target.get("lockSkewingY");
|
|
if (lockSkewingX && by === "x" || lockSkewingY && by === "y") {
|
|
return false;
|
|
}
|
|
var center = target.getCenterPoint(), actualMouseByCenter = target.toLocalPoint(new fabric.Point(x, y), "center", "center")[by], lastMouseByCenter = target.toLocalPoint(new fabric.Point(t.lastX, t.lastY), "center", "center")[by], actualMouseByOrigin, constraintPosition, dim = target._getTransformedDimensions();
|
|
this._changeSkewTransformOrigin(actualMouseByCenter - lastMouseByCenter, t, by);
|
|
actualMouseByOrigin = target.toLocalPoint(new fabric.Point(x, y), t.originX, t.originY)[by],
|
|
constraintPosition = target.translateToOriginPoint(center, t.originX, t.originY);
|
|
skewed = this._setObjectSkew(actualMouseByOrigin, t, by, dim);
|
|
t.lastX = x;
|
|
t.lastY = y;
|
|
target.setPositionByOrigin(constraintPosition, t.originX, t.originY);
|
|
return skewed;
|
|
},
|
|
_setObjectSkew: function(localMouse, transform, by, _dim) {
|
|
var target = transform.target, newValue, skewed = false, skewSign = transform.skewSign, newDim, dimNoSkew, otherBy, _otherBy, _by, newDimMouse, skewX, skewY;
|
|
if (by === "x") {
|
|
otherBy = "y";
|
|
_otherBy = "Y";
|
|
_by = "X";
|
|
skewX = 0;
|
|
skewY = target.skewY;
|
|
} else {
|
|
otherBy = "x";
|
|
_otherBy = "X";
|
|
_by = "Y";
|
|
skewX = target.skewX;
|
|
skewY = 0;
|
|
}
|
|
dimNoSkew = target._getTransformedDimensions(skewX, skewY);
|
|
newDimMouse = 2 * Math.abs(localMouse) - dimNoSkew[by];
|
|
if (newDimMouse <= 2) {
|
|
newValue = 0;
|
|
} else {
|
|
newValue = skewSign * Math.atan(newDimMouse / target["scale" + _by] / (dimNoSkew[otherBy] / target["scale" + _otherBy]));
|
|
newValue = fabric.util.radiansToDegrees(newValue);
|
|
}
|
|
skewed = target["skew" + _by] !== newValue;
|
|
target.set("skew" + _by, newValue);
|
|
if (target["skew" + _otherBy] !== 0) {
|
|
newDim = target._getTransformedDimensions();
|
|
newValue = _dim[otherBy] / newDim[otherBy] * target["scale" + _otherBy];
|
|
target.set("scale" + _otherBy, newValue);
|
|
}
|
|
return skewed;
|
|
},
|
|
_scaleObject: function(x, y, by) {
|
|
var t = this._currentTransform, target = t.target, lockScalingX = target.get("lockScalingX"), lockScalingY = target.get("lockScalingY"), lockScalingFlip = target.get("lockScalingFlip");
|
|
if (lockScalingX && lockScalingY) {
|
|
return false;
|
|
}
|
|
var constraintPosition = target.translateToOriginPoint(target.getCenterPoint(), t.originX, t.originY), localMouse = target.toLocalPoint(new fabric.Point(x, y), t.originX, t.originY), dim = target._getTransformedDimensions(), scaled = false;
|
|
this._setLocalMouse(localMouse, t);
|
|
scaled = this._setObjectScale(localMouse, t, lockScalingX, lockScalingY, by, lockScalingFlip, dim);
|
|
target.setPositionByOrigin(constraintPosition, t.originX, t.originY);
|
|
return scaled;
|
|
},
|
|
_setObjectScale: function(localMouse, transform, lockScalingX, lockScalingY, by, lockScalingFlip, _dim) {
|
|
var target = transform.target, forbidScalingX = false, forbidScalingY = false, scaled = false, changeX, changeY, scaleX, scaleY;
|
|
scaleX = localMouse.x * target.scaleX / _dim.x;
|
|
scaleY = localMouse.y * target.scaleY / _dim.y;
|
|
changeX = target.scaleX !== scaleX;
|
|
changeY = target.scaleY !== scaleY;
|
|
if (lockScalingFlip && scaleX <= 0 && scaleX < target.scaleX) {
|
|
forbidScalingX = true;
|
|
}
|
|
if (lockScalingFlip && scaleY <= 0 && scaleY < target.scaleY) {
|
|
forbidScalingY = true;
|
|
}
|
|
if (by === "equally" && !lockScalingX && !lockScalingY) {
|
|
forbidScalingX || forbidScalingY || (scaled = this._scaleObjectEqually(localMouse, target, transform, _dim));
|
|
} else if (!by) {
|
|
forbidScalingX || lockScalingX || target.set("scaleX", scaleX) && (scaled = scaled || changeX);
|
|
forbidScalingY || lockScalingY || target.set("scaleY", scaleY) && (scaled = scaled || changeY);
|
|
} else if (by === "x" && !target.get("lockUniScaling")) {
|
|
forbidScalingX || lockScalingX || target.set("scaleX", scaleX) && (scaled = scaled || changeX);
|
|
} else if (by === "y" && !target.get("lockUniScaling")) {
|
|
forbidScalingY || lockScalingY || target.set("scaleY", scaleY) && (scaled = scaled || changeY);
|
|
}
|
|
transform.newScaleX = scaleX;
|
|
transform.newScaleY = scaleY;
|
|
forbidScalingX || forbidScalingY || this._flipObject(transform, by);
|
|
return scaled;
|
|
},
|
|
_scaleObjectEqually: function(localMouse, target, transform, _dim) {
|
|
var dist = localMouse.y + localMouse.x, lastDist = _dim.y * transform.original.scaleY / target.scaleY + _dim.x * transform.original.scaleX / target.scaleX, scaled;
|
|
transform.newScaleX = transform.original.scaleX * dist / lastDist;
|
|
transform.newScaleY = transform.original.scaleY * dist / lastDist;
|
|
scaled = transform.newScaleX !== target.scaleX || transform.newScaleY !== target.scaleY;
|
|
target.set("scaleX", transform.newScaleX);
|
|
target.set("scaleY", transform.newScaleY);
|
|
return scaled;
|
|
},
|
|
_flipObject: function(transform, by) {
|
|
if (transform.newScaleX < 0 && by !== "y") {
|
|
if (transform.originX === "left") {
|
|
transform.originX = "right";
|
|
} else if (transform.originX === "right") {
|
|
transform.originX = "left";
|
|
}
|
|
}
|
|
if (transform.newScaleY < 0 && by !== "x") {
|
|
if (transform.originY === "top") {
|
|
transform.originY = "bottom";
|
|
} else if (transform.originY === "bottom") {
|
|
transform.originY = "top";
|
|
}
|
|
}
|
|
},
|
|
_setLocalMouse: function(localMouse, t) {
|
|
var target = t.target;
|
|
if (t.originX === "right") {
|
|
localMouse.x *= -1;
|
|
} else if (t.originX === "center") {
|
|
localMouse.x *= t.mouseXSign * 2;
|
|
if (localMouse.x < 0) {
|
|
t.mouseXSign = -t.mouseXSign;
|
|
}
|
|
}
|
|
if (t.originY === "bottom") {
|
|
localMouse.y *= -1;
|
|
} else if (t.originY === "center") {
|
|
localMouse.y *= t.mouseYSign * 2;
|
|
if (localMouse.y < 0) {
|
|
t.mouseYSign = -t.mouseYSign;
|
|
}
|
|
}
|
|
if (abs(localMouse.x) > target.padding) {
|
|
if (localMouse.x < 0) {
|
|
localMouse.x += target.padding;
|
|
} else {
|
|
localMouse.x -= target.padding;
|
|
}
|
|
} else {
|
|
localMouse.x = 0;
|
|
}
|
|
if (abs(localMouse.y) > target.padding) {
|
|
if (localMouse.y < 0) {
|
|
localMouse.y += target.padding;
|
|
} else {
|
|
localMouse.y -= target.padding;
|
|
}
|
|
} else {
|
|
localMouse.y = 0;
|
|
}
|
|
},
|
|
_rotateObject: function(x, y) {
|
|
var t = this._currentTransform;
|
|
if (t.target.get("lockRotation")) {
|
|
return false;
|
|
}
|
|
var lastAngle = atan2(t.ey - t.top, t.ex - t.left), curAngle = atan2(y - t.top, x - t.left), angle = radiansToDegrees(curAngle - lastAngle + t.theta);
|
|
if (angle < 0) {
|
|
angle = 360 + angle;
|
|
}
|
|
t.target.angle = angle % 360;
|
|
return true;
|
|
},
|
|
setCursor: function(value) {
|
|
this.upperCanvasEl.style.cursor = value;
|
|
},
|
|
_resetObjectTransform: function(target) {
|
|
target.scaleX = 1;
|
|
target.scaleY = 1;
|
|
target.skewX = 0;
|
|
target.skewY = 0;
|
|
target.setAngle(0);
|
|
},
|
|
_drawSelection: function() {
|
|
var ctx = this.contextTop, groupSelector = this._groupSelector, left = groupSelector.left, top = groupSelector.top, aleft = abs(left), atop = abs(top);
|
|
ctx.fillStyle = this.selectionColor;
|
|
ctx.fillRect(groupSelector.ex - (left > 0 ? 0 : -left), groupSelector.ey - (top > 0 ? 0 : -top), aleft, atop);
|
|
ctx.lineWidth = this.selectionLineWidth;
|
|
ctx.strokeStyle = this.selectionBorderColor;
|
|
if (this.selectionDashArray.length > 1) {
|
|
var px = groupSelector.ex + STROKE_OFFSET - (left > 0 ? 0 : aleft), py = groupSelector.ey + STROKE_OFFSET - (top > 0 ? 0 : atop);
|
|
ctx.beginPath();
|
|
fabric.util.drawDashedLine(ctx, px, py, px + aleft, py, this.selectionDashArray);
|
|
fabric.util.drawDashedLine(ctx, px, py + atop - 1, px + aleft, py + atop - 1, this.selectionDashArray);
|
|
fabric.util.drawDashedLine(ctx, px, py, px, py + atop, this.selectionDashArray);
|
|
fabric.util.drawDashedLine(ctx, px + aleft - 1, py, px + aleft - 1, py + atop, this.selectionDashArray);
|
|
ctx.closePath();
|
|
ctx.stroke();
|
|
} else {
|
|
ctx.strokeRect(groupSelector.ex + STROKE_OFFSET - (left > 0 ? 0 : aleft), groupSelector.ey + STROKE_OFFSET - (top > 0 ? 0 : atop), aleft, atop);
|
|
}
|
|
},
|
|
findTarget: function(e, skipGroup) {
|
|
if (this.skipTargetFind) {
|
|
return;
|
|
}
|
|
var pointer = this.getPointer(e, true), activeGroup = this.getActiveGroup(), activeObject = this.getActiveObject();
|
|
if (activeGroup && !skipGroup && this._checkTarget(pointer, activeGroup)) {
|
|
return activeGroup;
|
|
}
|
|
if (activeObject && this._checkTarget(pointer, activeObject)) {
|
|
return activeObject;
|
|
}
|
|
this.targets = [];
|
|
var target = this._searchPossibleTargets(this._objects, pointer);
|
|
this._fireOverOutEvents(target, e);
|
|
return target;
|
|
},
|
|
_fireOverOutEvents: function(target, e) {
|
|
if (target) {
|
|
if (this._hoveredTarget !== target) {
|
|
if (this._hoveredTarget) {
|
|
this.fire("mouse:out", {
|
|
target: this._hoveredTarget,
|
|
e: e
|
|
});
|
|
this._hoveredTarget.fire("mouseout");
|
|
}
|
|
this.fire("mouse:over", {
|
|
target: target,
|
|
e: e
|
|
});
|
|
target.fire("mouseover");
|
|
this._hoveredTarget = target;
|
|
}
|
|
} else if (this._hoveredTarget) {
|
|
this.fire("mouse:out", {
|
|
target: this._hoveredTarget,
|
|
e: e
|
|
});
|
|
this._hoveredTarget.fire("mouseout");
|
|
this._hoveredTarget = null;
|
|
}
|
|
},
|
|
_checkTarget: function(pointer, obj) {
|
|
if (obj && obj.visible && obj.evented && this.containsPoint(null, obj, pointer)) {
|
|
if ((this.perPixelTargetFind || obj.perPixelTargetFind) && !obj.isEditing) {
|
|
var isTransparent = this.isTargetTransparent(obj, pointer.x, pointer.y);
|
|
if (!isTransparent) {
|
|
return true;
|
|
}
|
|
} else {
|
|
return true;
|
|
}
|
|
}
|
|
},
|
|
_searchPossibleTargets: function(objects, pointer) {
|
|
var target, i = objects.length, normalizedPointer, subTarget;
|
|
while (i--) {
|
|
if (this._checkTarget(pointer, objects[i])) {
|
|
target = objects[i];
|
|
if (target.type === "group" && target.subTargetCheck) {
|
|
normalizedPointer = this._normalizePointer(target, pointer);
|
|
subTarget = this._searchPossibleTargets(target._objects, normalizedPointer);
|
|
subTarget && this.targets.push(subTarget);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
return target;
|
|
},
|
|
getPointer: function(e, ignoreZoom, upperCanvasEl) {
|
|
if (!upperCanvasEl) {
|
|
upperCanvasEl = this.upperCanvasEl;
|
|
}
|
|
var pointer = getPointer(e), bounds = upperCanvasEl.getBoundingClientRect(), boundsWidth = bounds.width || 0, boundsHeight = bounds.height || 0, cssScale;
|
|
if (!boundsWidth || !boundsHeight) {
|
|
if ("top" in bounds && "bottom" in bounds) {
|
|
boundsHeight = Math.abs(bounds.top - bounds.bottom);
|
|
}
|
|
if ("right" in bounds && "left" in bounds) {
|
|
boundsWidth = Math.abs(bounds.right - bounds.left);
|
|
}
|
|
}
|
|
this.calcOffset();
|
|
pointer.x = pointer.x - this._offset.left;
|
|
pointer.y = pointer.y - this._offset.top;
|
|
if (!ignoreZoom) {
|
|
pointer = fabric.util.transformPoint(pointer, fabric.util.invertTransform(this.viewportTransform));
|
|
}
|
|
if (boundsWidth === 0 || boundsHeight === 0) {
|
|
cssScale = {
|
|
width: 1,
|
|
height: 1
|
|
};
|
|
} else {
|
|
cssScale = {
|
|
width: upperCanvasEl.width / boundsWidth,
|
|
height: upperCanvasEl.height / boundsHeight
|
|
};
|
|
}
|
|
return {
|
|
x: pointer.x * cssScale.width,
|
|
y: pointer.y * cssScale.height
|
|
};
|
|
},
|
|
_createUpperCanvas: function() {
|
|
var lowerCanvasClass = this.lowerCanvasEl.className.replace(/\s*lower-canvas\s*/, "");
|
|
this.upperCanvasEl = this._createCanvasElement();
|
|
fabric.util.addClass(this.upperCanvasEl, "upper-canvas " + lowerCanvasClass);
|
|
this.wrapperEl.appendChild(this.upperCanvasEl);
|
|
this._copyCanvasStyle(this.lowerCanvasEl, this.upperCanvasEl);
|
|
this._applyCanvasStyle(this.upperCanvasEl);
|
|
this.contextTop = this.upperCanvasEl.getContext("2d");
|
|
},
|
|
_createCacheCanvas: function() {
|
|
this.cacheCanvasEl = this._createCanvasElement();
|
|
this.cacheCanvasEl.setAttribute("width", this.width);
|
|
this.cacheCanvasEl.setAttribute("height", this.height);
|
|
this.contextCache = this.cacheCanvasEl.getContext("2d");
|
|
},
|
|
_initWrapperElement: function() {
|
|
this.wrapperEl = fabric.util.wrapElement(this.lowerCanvasEl, "div", {
|
|
"class": this.containerClass
|
|
});
|
|
fabric.util.setStyle(this.wrapperEl, {
|
|
width: this.getWidth() + "px",
|
|
height: this.getHeight() + "px",
|
|
position: "relative"
|
|
});
|
|
fabric.util.makeElementUnselectable(this.wrapperEl);
|
|
},
|
|
_applyCanvasStyle: function(element) {
|
|
var width = this.getWidth() || element.width, height = this.getHeight() || element.height;
|
|
fabric.util.setStyle(element, {
|
|
position: "absolute",
|
|
width: width + "px",
|
|
height: height + "px",
|
|
left: 0,
|
|
top: 0
|
|
});
|
|
element.width = width;
|
|
element.height = height;
|
|
fabric.util.makeElementUnselectable(element);
|
|
},
|
|
_copyCanvasStyle: function(fromEl, toEl) {
|
|
toEl.style.cssText = fromEl.style.cssText;
|
|
},
|
|
getSelectionContext: function() {
|
|
return this.contextTop;
|
|
},
|
|
getSelectionElement: function() {
|
|
return this.upperCanvasEl;
|
|
},
|
|
_setActiveObject: function(object) {
|
|
if (this._activeObject) {
|
|
this._activeObject.set("active", false);
|
|
}
|
|
this._activeObject = object;
|
|
object.set("active", true);
|
|
},
|
|
setActiveObject: function(object, e) {
|
|
this._setActiveObject(object);
|
|
this.renderAll();
|
|
this.fire("object:selected", {
|
|
target: object,
|
|
e: e
|
|
});
|
|
object.fire("selected", {
|
|
e: e
|
|
});
|
|
return this;
|
|
},
|
|
getActiveObject: function() {
|
|
return this._activeObject;
|
|
},
|
|
_discardActiveObject: function() {
|
|
if (this._activeObject) {
|
|
this._activeObject.set("active", false);
|
|
}
|
|
this._activeObject = null;
|
|
},
|
|
discardActiveObject: function(e) {
|
|
this._discardActiveObject();
|
|
this.renderAll();
|
|
this.fire("selection:cleared", {
|
|
e: e
|
|
});
|
|
return this;
|
|
},
|
|
_setActiveGroup: function(group) {
|
|
this._activeGroup = group;
|
|
if (group) {
|
|
group.set("active", true);
|
|
}
|
|
},
|
|
setActiveGroup: function(group, e) {
|
|
this._setActiveGroup(group);
|
|
if (group) {
|
|
this.fire("object:selected", {
|
|
target: group,
|
|
e: e
|
|
});
|
|
group.fire("selected", {
|
|
e: e
|
|
});
|
|
}
|
|
return this;
|
|
},
|
|
getActiveGroup: function() {
|
|
return this._activeGroup;
|
|
},
|
|
_discardActiveGroup: function() {
|
|
var g = this.getActiveGroup();
|
|
if (g) {
|
|
g.destroy();
|
|
}
|
|
this.setActiveGroup(null);
|
|
},
|
|
discardActiveGroup: function(e) {
|
|
this._discardActiveGroup();
|
|
this.fire("selection:cleared", {
|
|
e: e
|
|
});
|
|
return this;
|
|
},
|
|
deactivateAll: function() {
|
|
var allObjects = this.getObjects(), i = 0, len = allObjects.length;
|
|
for (;i < len; i++) {
|
|
allObjects[i].set("active", false);
|
|
}
|
|
this._discardActiveGroup();
|
|
this._discardActiveObject();
|
|
return this;
|
|
},
|
|
deactivateAllWithDispatch: function(e) {
|
|
var activeObject = this.getActiveGroup() || this.getActiveObject();
|
|
if (activeObject) {
|
|
this.fire("before:selection:cleared", {
|
|
target: activeObject,
|
|
e: e
|
|
});
|
|
}
|
|
this.deactivateAll();
|
|
if (activeObject) {
|
|
this.fire("selection:cleared", {
|
|
e: e
|
|
});
|
|
}
|
|
return this;
|
|
},
|
|
dispose: function() {
|
|
this.callSuper("dispose");
|
|
var wrapper = this.wrapperEl;
|
|
this.removeListeners();
|
|
wrapper.removeChild(this.upperCanvasEl);
|
|
wrapper.removeChild(this.lowerCanvasEl);
|
|
delete this.upperCanvasEl;
|
|
if (wrapper.parentNode) {
|
|
wrapper.parentNode.replaceChild(this.lowerCanvasEl, this.wrapperEl);
|
|
}
|
|
delete this.wrapperEl;
|
|
return this;
|
|
},
|
|
drawControls: function(ctx) {
|
|
var activeGroup = this.getActiveGroup();
|
|
if (activeGroup) {
|
|
activeGroup._renderControls(ctx);
|
|
} else {
|
|
this._drawObjectsControls(ctx);
|
|
}
|
|
},
|
|
_drawObjectsControls: function(ctx) {
|
|
for (var i = 0, len = this._objects.length; i < len; ++i) {
|
|
if (!this._objects[i] || !this._objects[i].active) {
|
|
continue;
|
|
}
|
|
this._objects[i]._renderControls(ctx);
|
|
}
|
|
},
|
|
_onObjectRemoved: function(obj) {
|
|
this.callSuper("_onObjectRemoved", obj);
|
|
},
|
|
clear: function() {
|
|
return this.callSuper("clear");
|
|
}
|
|
});
|
|
for (var prop in fabric.StaticCanvas) {
|
|
if (prop !== "prototype") {
|
|
fabric.Canvas[prop] = fabric.StaticCanvas[prop];
|
|
}
|
|
}
|
|
if (fabric.isTouchSupported) {
|
|
fabric.Canvas.prototype._setCursorFromEvent = function() {};
|
|
}
|
|
fabric.Element = fabric.Canvas;
|
|
})();
|
|
|
|
(function() {
|
|
var cursorOffset = {
|
|
mt: 0,
|
|
tr: 1,
|
|
mr: 2,
|
|
br: 3,
|
|
mb: 4,
|
|
bl: 5,
|
|
ml: 6,
|
|
tl: 7
|
|
}, addListener = fabric.util.addListener, removeListener = fabric.util.removeListener;
|
|
fabric.util.object.extend(fabric.Canvas.prototype, {
|
|
cursorMap: [ "n-resize", "ne-resize", "e-resize", "se-resize", "s-resize", "sw-resize", "w-resize", "nw-resize" ],
|
|
_initEventListeners: function() {
|
|
this._bindEvents();
|
|
addListener(fabric.window, "resize", this._onResize);
|
|
addListener(this.upperCanvasEl, "mousedown", this._onMouseDown);
|
|
addListener(this.upperCanvasEl, "mousemove", this._onMouseMove);
|
|
addListener(this.upperCanvasEl, "mousewheel", this._onMouseWheel);
|
|
addListener(this.upperCanvasEl, "mouseout", this._onMouseOut);
|
|
addListener(this.upperCanvasEl, "touchstart", this._onMouseDown);
|
|
addListener(this.upperCanvasEl, "touchmove", this._onMouseMove);
|
|
if (typeof eventjs !== "undefined" && "add" in eventjs) {
|
|
eventjs.add(this.upperCanvasEl, "gesture", this._onGesture);
|
|
eventjs.add(this.upperCanvasEl, "drag", this._onDrag);
|
|
eventjs.add(this.upperCanvasEl, "orientation", this._onOrientationChange);
|
|
eventjs.add(this.upperCanvasEl, "shake", this._onShake);
|
|
eventjs.add(this.upperCanvasEl, "longpress", this._onLongPress);
|
|
}
|
|
},
|
|
_bindEvents: function() {
|
|
this._onMouseDown = this._onMouseDown.bind(this);
|
|
this._onMouseMove = this._onMouseMove.bind(this);
|
|
this._onMouseUp = this._onMouseUp.bind(this);
|
|
this._onResize = this._onResize.bind(this);
|
|
this._onGesture = this._onGesture.bind(this);
|
|
this._onDrag = this._onDrag.bind(this);
|
|
this._onShake = this._onShake.bind(this);
|
|
this._onLongPress = this._onLongPress.bind(this);
|
|
this._onOrientationChange = this._onOrientationChange.bind(this);
|
|
this._onMouseWheel = this._onMouseWheel.bind(this);
|
|
this._onMouseOut = this._onMouseOut.bind(this);
|
|
},
|
|
removeListeners: function() {
|
|
removeListener(fabric.window, "resize", this._onResize);
|
|
removeListener(this.upperCanvasEl, "mousedown", this._onMouseDown);
|
|
removeListener(this.upperCanvasEl, "mousemove", this._onMouseMove);
|
|
removeListener(this.upperCanvasEl, "mousewheel", this._onMouseWheel);
|
|
removeListener(this.upperCanvasEl, "mouseout", this._onMouseOut);
|
|
removeListener(this.upperCanvasEl, "touchstart", this._onMouseDown);
|
|
removeListener(this.upperCanvasEl, "touchmove", this._onMouseMove);
|
|
if (typeof eventjs !== "undefined" && "remove" in eventjs) {
|
|
eventjs.remove(this.upperCanvasEl, "gesture", this._onGesture);
|
|
eventjs.remove(this.upperCanvasEl, "drag", this._onDrag);
|
|
eventjs.remove(this.upperCanvasEl, "orientation", this._onOrientationChange);
|
|
eventjs.remove(this.upperCanvasEl, "shake", this._onShake);
|
|
eventjs.remove(this.upperCanvasEl, "longpress", this._onLongPress);
|
|
}
|
|
},
|
|
_onGesture: function(e, self) {
|
|
this.__onTransformGesture && this.__onTransformGesture(e, self);
|
|
},
|
|
_onDrag: function(e, self) {
|
|
this.__onDrag && this.__onDrag(e, self);
|
|
},
|
|
_onMouseWheel: function(e, self) {
|
|
this.__onMouseWheel && this.__onMouseWheel(e, self);
|
|
},
|
|
_onMouseOut: function(e) {
|
|
var target = this._hoveredTarget;
|
|
this.fire("mouse:out", {
|
|
target: target,
|
|
e: e
|
|
});
|
|
this._hoveredTarget = null;
|
|
target && target.fire("mouseout", {
|
|
e: e
|
|
});
|
|
},
|
|
_onOrientationChange: function(e, self) {
|
|
this.__onOrientationChange && this.__onOrientationChange(e, self);
|
|
},
|
|
_onShake: function(e, self) {
|
|
this.__onShake && this.__onShake(e, self);
|
|
},
|
|
_onLongPress: function(e, self) {
|
|
this.__onLongPress && this.__onLongPress(e, self);
|
|
},
|
|
_onMouseDown: function(e) {
|
|
this.__onMouseDown(e);
|
|
addListener(fabric.document, "touchend", this._onMouseUp);
|
|
addListener(fabric.document, "touchmove", this._onMouseMove);
|
|
removeListener(this.upperCanvasEl, "mousemove", this._onMouseMove);
|
|
removeListener(this.upperCanvasEl, "touchmove", this._onMouseMove);
|
|
if (e.type === "touchstart") {
|
|
removeListener(this.upperCanvasEl, "mousedown", this._onMouseDown);
|
|
} else {
|
|
addListener(fabric.document, "mouseup", this._onMouseUp);
|
|
addListener(fabric.document, "mousemove", this._onMouseMove);
|
|
}
|
|
},
|
|
_onMouseUp: function(e) {
|
|
this.__onMouseUp(e);
|
|
removeListener(fabric.document, "mouseup", this._onMouseUp);
|
|
removeListener(fabric.document, "touchend", this._onMouseUp);
|
|
removeListener(fabric.document, "mousemove", this._onMouseMove);
|
|
removeListener(fabric.document, "touchmove", this._onMouseMove);
|
|
addListener(this.upperCanvasEl, "mousemove", this._onMouseMove);
|
|
addListener(this.upperCanvasEl, "touchmove", this._onMouseMove);
|
|
if (e.type === "touchend") {
|
|
var _this = this;
|
|
setTimeout(function() {
|
|
addListener(_this.upperCanvasEl, "mousedown", _this._onMouseDown);
|
|
}, 400);
|
|
}
|
|
},
|
|
_onMouseMove: function(e) {
|
|
!this.allowTouchScrolling && e.preventDefault && e.preventDefault();
|
|
this.__onMouseMove(e);
|
|
},
|
|
_onResize: function() {
|
|
this.calcOffset();
|
|
},
|
|
_shouldRender: function(target, pointer) {
|
|
var activeObject = this.getActiveGroup() || this.getActiveObject();
|
|
return !!(target && (target.isMoving || target !== activeObject) || !target && !!activeObject || !target && !activeObject && !this._groupSelector || pointer && this._previousPointer && this.selection && (pointer.x !== this._previousPointer.x || pointer.y !== this._previousPointer.y));
|
|
},
|
|
__onMouseUp: function(e) {
|
|
var target, searchTarget = true, transform = this._currentTransform, groupSelector = this._groupSelector, isClick = !groupSelector || groupSelector.left === 0 && groupSelector.top === 0;
|
|
if (this.isDrawingMode && this._isCurrentlyDrawing) {
|
|
this._onMouseUpInDrawingMode(e);
|
|
return;
|
|
}
|
|
if (transform) {
|
|
this._finalizeCurrentTransform();
|
|
searchTarget = !transform.actionPerformed;
|
|
}
|
|
target = searchTarget ? this.findTarget(e, true) : transform.target;
|
|
var shouldRender = this._shouldRender(target, this.getPointer(e));
|
|
if (target || !isClick) {
|
|
this._maybeGroupObjects(e);
|
|
} else {
|
|
this._groupSelector = null;
|
|
this._currentTransform = null;
|
|
}
|
|
if (target) {
|
|
target.isMoving = false;
|
|
}
|
|
this._handleCursorAndEvent(e, target, "up");
|
|
target && (target.__corner = 0);
|
|
shouldRender && this.renderAll();
|
|
},
|
|
_handleCursorAndEvent: function(e, target, eventType) {
|
|
this._setCursorFromEvent(e, target);
|
|
this._handleEvent(e, eventType, target ? target : null);
|
|
},
|
|
_handleEvent: function(e, eventType, targetObj) {
|
|
var target = typeof targetObj === undefined ? this.findTarget(e) : targetObj, targets = this.targets || [], options = {
|
|
e: e,
|
|
target: target,
|
|
subTargets: targets
|
|
};
|
|
this.fire("mouse:" + eventType, options);
|
|
target && target.fire("mouse" + eventType, options);
|
|
for (var i = 0; i < targets.length; i++) {
|
|
targets[i].fire("mouse" + eventType, options);
|
|
}
|
|
},
|
|
_finalizeCurrentTransform: function() {
|
|
var transform = this._currentTransform, target = transform.target;
|
|
if (target._scaling) {
|
|
target._scaling = false;
|
|
}
|
|
target.setCoords();
|
|
this._restoreOriginXY(target);
|
|
if (transform.actionPerformed || this.stateful && target.hasStateChanged()) {
|
|
this.fire("object:modified", {
|
|
target: target
|
|
});
|
|
target.fire("modified");
|
|
}
|
|
},
|
|
_restoreOriginXY: function(target) {
|
|
if (this._previousOriginX && this._previousOriginY) {
|
|
var originPoint = target.translateToOriginPoint(target.getCenterPoint(), this._previousOriginX, this._previousOriginY);
|
|
target.originX = this._previousOriginX;
|
|
target.originY = this._previousOriginY;
|
|
target.left = originPoint.x;
|
|
target.top = originPoint.y;
|
|
this._previousOriginX = null;
|
|
this._previousOriginY = null;
|
|
}
|
|
},
|
|
_onMouseDownInDrawingMode: function(e) {
|
|
this._isCurrentlyDrawing = true;
|
|
this.discardActiveObject(e).renderAll();
|
|
if (this.clipTo) {
|
|
fabric.util.clipContext(this, this.contextTop);
|
|
}
|
|
var ivt = fabric.util.invertTransform(this.viewportTransform), pointer = fabric.util.transformPoint(this.getPointer(e, true), ivt);
|
|
this.freeDrawingBrush.onMouseDown(pointer);
|
|
this._handleEvent(e, "down");
|
|
},
|
|
_onMouseMoveInDrawingMode: function(e) {
|
|
if (this._isCurrentlyDrawing) {
|
|
var ivt = fabric.util.invertTransform(this.viewportTransform), pointer = fabric.util.transformPoint(this.getPointer(e, true), ivt);
|
|
this.freeDrawingBrush.onMouseMove(pointer);
|
|
}
|
|
this.setCursor(this.freeDrawingCursor);
|
|
this._handleEvent(e, "move");
|
|
},
|
|
_onMouseUpInDrawingMode: function(e) {
|
|
this._isCurrentlyDrawing = false;
|
|
if (this.clipTo) {
|
|
this.contextTop.restore();
|
|
}
|
|
this.freeDrawingBrush.onMouseUp();
|
|
this._handleEvent(e, "up");
|
|
},
|
|
__onMouseDown: function(e) {
|
|
var isLeftClick = "which" in e ? e.which === 1 : e.button === 0;
|
|
if (!isLeftClick && !fabric.isTouchSupported) {
|
|
return;
|
|
}
|
|
if (this.isDrawingMode) {
|
|
this._onMouseDownInDrawingMode(e);
|
|
return;
|
|
}
|
|
if (this._currentTransform) {
|
|
return;
|
|
}
|
|
var target = this.findTarget(e), pointer = this.getPointer(e, true);
|
|
this._previousPointer = pointer;
|
|
var shouldRender = this._shouldRender(target, pointer), shouldGroup = this._shouldGroup(e, target);
|
|
if (this._shouldClearSelection(e, target)) {
|
|
this._clearSelection(e, target, pointer);
|
|
} else if (shouldGroup) {
|
|
this._handleGrouping(e, target);
|
|
target = this.getActiveGroup();
|
|
}
|
|
if (target) {
|
|
if (target.selectable && (target.__corner || !shouldGroup)) {
|
|
this._beforeTransform(e, target);
|
|
this._setupCurrentTransform(e, target);
|
|
}
|
|
if (target !== this.getActiveGroup() && target !== this.getActiveObject()) {
|
|
this.deactivateAll();
|
|
target.selectable && this.setActiveObject(target, e);
|
|
}
|
|
}
|
|
this._handleEvent(e, "down", target ? target : null);
|
|
shouldRender && this.renderAll();
|
|
},
|
|
_beforeTransform: function(e, target) {
|
|
this.stateful && target.saveState();
|
|
if (target._findTargetCorner(this.getPointer(e))) {
|
|
this.onBeforeScaleRotate(target);
|
|
}
|
|
},
|
|
_clearSelection: function(e, target, pointer) {
|
|
this.deactivateAllWithDispatch(e);
|
|
if (target && target.selectable) {
|
|
this.setActiveObject(target, e);
|
|
} else if (this.selection) {
|
|
this._groupSelector = {
|
|
ex: pointer.x,
|
|
ey: pointer.y,
|
|
top: 0,
|
|
left: 0
|
|
};
|
|
}
|
|
},
|
|
_setOriginToCenter: function(target) {
|
|
this._previousOriginX = this._currentTransform.target.originX;
|
|
this._previousOriginY = this._currentTransform.target.originY;
|
|
var center = target.getCenterPoint();
|
|
target.originX = "center";
|
|
target.originY = "center";
|
|
target.left = center.x;
|
|
target.top = center.y;
|
|
this._currentTransform.left = target.left;
|
|
this._currentTransform.top = target.top;
|
|
},
|
|
_setCenterToOrigin: function(target) {
|
|
var originPoint = target.translateToOriginPoint(target.getCenterPoint(), this._previousOriginX, this._previousOriginY);
|
|
target.originX = this._previousOriginX;
|
|
target.originY = this._previousOriginY;
|
|
target.left = originPoint.x;
|
|
target.top = originPoint.y;
|
|
this._previousOriginX = null;
|
|
this._previousOriginY = null;
|
|
},
|
|
__onMouseMove: function(e) {
|
|
var target, pointer;
|
|
if (this.isDrawingMode) {
|
|
this._onMouseMoveInDrawingMode(e);
|
|
return;
|
|
}
|
|
if (typeof e.touches !== "undefined" && e.touches.length > 1) {
|
|
return;
|
|
}
|
|
var groupSelector = this._groupSelector;
|
|
if (groupSelector) {
|
|
pointer = this.getPointer(e, true);
|
|
groupSelector.left = pointer.x - groupSelector.ex;
|
|
groupSelector.top = pointer.y - groupSelector.ey;
|
|
this.renderTop();
|
|
} else if (!this._currentTransform) {
|
|
target = this.findTarget(e);
|
|
this._setCursorFromEvent(e, target);
|
|
} else {
|
|
this._transformObject(e);
|
|
}
|
|
this._handleEvent(e, "move", target ? target : null);
|
|
},
|
|
_transformObject: function(e) {
|
|
var pointer = this.getPointer(e), transform = this._currentTransform;
|
|
transform.reset = false, transform.target.isMoving = true;
|
|
this._beforeScaleTransform(e, transform);
|
|
this._performTransformAction(e, transform, pointer);
|
|
this.renderAll();
|
|
},
|
|
_performTransformAction: function(e, transform, pointer) {
|
|
var x = pointer.x, y = pointer.y, target = transform.target, action = transform.action, actionPerformed = false;
|
|
if (action === "rotate") {
|
|
(actionPerformed = this._rotateObject(x, y)) && this._fire("rotating", target, e);
|
|
} else if (action === "scale") {
|
|
(actionPerformed = this._onScale(e, transform, x, y)) && this._fire("scaling", target, e);
|
|
} else if (action === "scaleX") {
|
|
(actionPerformed = this._scaleObject(x, y, "x")) && this._fire("scaling", target, e);
|
|
} else if (action === "scaleY") {
|
|
(actionPerformed = this._scaleObject(x, y, "y")) && this._fire("scaling", target, e);
|
|
} else if (action === "skewX") {
|
|
(actionPerformed = this._skewObject(x, y, "x")) && this._fire("skewing", target, e);
|
|
} else if (action === "skewY") {
|
|
(actionPerformed = this._skewObject(x, y, "y")) && this._fire("skewing", target, e);
|
|
} else {
|
|
actionPerformed = this._translateObject(x, y);
|
|
if (actionPerformed) {
|
|
this._fire("moving", target, e);
|
|
this.setCursor(target.moveCursor || this.moveCursor);
|
|
}
|
|
}
|
|
transform.actionPerformed = actionPerformed;
|
|
},
|
|
_fire: function(eventName, target, e) {
|
|
this.fire("object:" + eventName, {
|
|
target: target,
|
|
e: e
|
|
});
|
|
target.fire(eventName, {
|
|
e: e
|
|
});
|
|
},
|
|
_beforeScaleTransform: function(e, transform) {
|
|
if (transform.action === "scale" || transform.action === "scaleX" || transform.action === "scaleY") {
|
|
var centerTransform = this._shouldCenterTransform(transform.target);
|
|
if (centerTransform && (transform.originX !== "center" || transform.originY !== "center") || !centerTransform && transform.originX === "center" && transform.originY === "center") {
|
|
this._resetCurrentTransform();
|
|
transform.reset = true;
|
|
}
|
|
}
|
|
},
|
|
_onScale: function(e, transform, x, y) {
|
|
if ((e[this.uniScaleKey] || this.uniScaleTransform) && !transform.target.get("lockUniScaling")) {
|
|
transform.currentAction = "scale";
|
|
return this._scaleObject(x, y);
|
|
} else {
|
|
if (!transform.reset && transform.currentAction === "scale") {
|
|
this._resetCurrentTransform();
|
|
}
|
|
transform.currentAction = "scaleEqually";
|
|
return this._scaleObject(x, y, "equally");
|
|
}
|
|
},
|
|
_setCursorFromEvent: function(e, target) {
|
|
if (!target) {
|
|
this.setCursor(this.defaultCursor);
|
|
return false;
|
|
}
|
|
var hoverCursor = target.hoverCursor || this.hoverCursor;
|
|
if (!target.selectable) {
|
|
this.setCursor(hoverCursor);
|
|
} else {
|
|
var activeGroup = this.getActiveGroup(), corner = target._findTargetCorner && (!activeGroup || !activeGroup.contains(target)) && target._findTargetCorner(this.getPointer(e, true));
|
|
if (!corner) {
|
|
this.setCursor(hoverCursor);
|
|
} else {
|
|
this._setCornerCursor(corner, target, e);
|
|
}
|
|
}
|
|
return true;
|
|
},
|
|
_setCornerCursor: function(corner, target, e) {
|
|
if (corner in cursorOffset) {
|
|
this.setCursor(this._getRotatedCornerCursor(corner, target, e));
|
|
} else if (corner === "mtr" && target.hasRotatingPoint) {
|
|
this.setCursor(this.rotationCursor);
|
|
} else {
|
|
this.setCursor(this.defaultCursor);
|
|
return false;
|
|
}
|
|
},
|
|
_getRotatedCornerCursor: function(corner, target, e) {
|
|
var n = Math.round(target.getAngle() % 360 / 45);
|
|
if (n < 0) {
|
|
n += 8;
|
|
}
|
|
n += cursorOffset[corner];
|
|
if (e[this.altActionKey] && cursorOffset[corner] % 2 === 0) {
|
|
n += 2;
|
|
}
|
|
n %= 8;
|
|
return this.cursorMap[n];
|
|
}
|
|
});
|
|
})();
|
|
|
|
(function() {
|
|
var min = Math.min, max = Math.max;
|
|
fabric.util.object.extend(fabric.Canvas.prototype, {
|
|
_shouldGroup: function(e, target) {
|
|
var activeObject = this.getActiveObject();
|
|
return e[this.selectionKey] && target && target.selectable && (this.getActiveGroup() || activeObject && activeObject !== target) && this.selection;
|
|
},
|
|
_handleGrouping: function(e, target) {
|
|
var activeGroup = this.getActiveGroup();
|
|
if (target === activeGroup) {
|
|
target = this.findTarget(e, true);
|
|
if (!target) {
|
|
return;
|
|
}
|
|
}
|
|
if (activeGroup) {
|
|
this._updateActiveGroup(target, e);
|
|
} else {
|
|
this._createActiveGroup(target, e);
|
|
}
|
|
if (this._activeGroup) {
|
|
this._activeGroup.saveCoords();
|
|
}
|
|
},
|
|
_updateActiveGroup: function(target, e) {
|
|
var activeGroup = this.getActiveGroup();
|
|
if (activeGroup.contains(target)) {
|
|
activeGroup.removeWithUpdate(target);
|
|
target.set("active", false);
|
|
if (activeGroup.size() === 1) {
|
|
this.discardActiveGroup(e);
|
|
this.setActiveObject(activeGroup.item(0));
|
|
return;
|
|
}
|
|
} else {
|
|
activeGroup.addWithUpdate(target);
|
|
}
|
|
this.fire("selection:created", {
|
|
target: activeGroup,
|
|
e: e
|
|
});
|
|
activeGroup.set("active", true);
|
|
},
|
|
_createActiveGroup: function(target, e) {
|
|
if (this._activeObject && target !== this._activeObject) {
|
|
var group = this._createGroup(target);
|
|
group.addWithUpdate();
|
|
this.setActiveGroup(group);
|
|
this._activeObject = null;
|
|
this.fire("selection:created", {
|
|
target: group,
|
|
e: e
|
|
});
|
|
}
|
|
target.set("active", true);
|
|
},
|
|
_createGroup: function(target) {
|
|
var objects = this.getObjects(), isActiveLower = objects.indexOf(this._activeObject) < objects.indexOf(target), groupObjects = isActiveLower ? [ this._activeObject, target ] : [ target, this._activeObject ];
|
|
this._activeObject.isEditing && this._activeObject.exitEditing();
|
|
return new fabric.Group(groupObjects, {
|
|
canvas: this
|
|
});
|
|
},
|
|
_groupSelectedObjects: function(e) {
|
|
var group = this._collectObjects();
|
|
if (group.length === 1) {
|
|
this.setActiveObject(group[0], e);
|
|
} else if (group.length > 1) {
|
|
group = new fabric.Group(group.reverse(), {
|
|
canvas: this
|
|
});
|
|
group.addWithUpdate();
|
|
this.setActiveGroup(group, e);
|
|
group.saveCoords();
|
|
this.fire("selection:created", {
|
|
target: group
|
|
});
|
|
this.renderAll();
|
|
}
|
|
},
|
|
_collectObjects: function() {
|
|
var group = [], currentObject, x1 = this._groupSelector.ex, y1 = this._groupSelector.ey, x2 = x1 + this._groupSelector.left, y2 = y1 + this._groupSelector.top, selectionX1Y1 = new fabric.Point(min(x1, x2), min(y1, y2)), selectionX2Y2 = new fabric.Point(max(x1, x2), max(y1, y2)), isClick = x1 === x2 && y1 === y2;
|
|
for (var i = this._objects.length; i--; ) {
|
|
currentObject = this._objects[i];
|
|
if (!currentObject || !currentObject.selectable || !currentObject.visible) {
|
|
continue;
|
|
}
|
|
if (currentObject.intersectsWithRect(selectionX1Y1, selectionX2Y2) || currentObject.isContainedWithinRect(selectionX1Y1, selectionX2Y2) || currentObject.containsPoint(selectionX1Y1) || currentObject.containsPoint(selectionX2Y2)) {
|
|
currentObject.set("active", true);
|
|
group.push(currentObject);
|
|
if (isClick) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return group;
|
|
},
|
|
_maybeGroupObjects: function(e) {
|
|
if (this.selection && this._groupSelector) {
|
|
this._groupSelectedObjects(e);
|
|
}
|
|
var activeGroup = this.getActiveGroup();
|
|
if (activeGroup) {
|
|
activeGroup.setObjectsCoords().setCoords();
|
|
activeGroup.isMoving = false;
|
|
this.setCursor(this.defaultCursor);
|
|
}
|
|
this._groupSelector = null;
|
|
this._currentTransform = null;
|
|
}
|
|
});
|
|
})();
|
|
|
|
fabric.util.object.extend(fabric.StaticCanvas.prototype, {
|
|
toDataURL: function(options) {
|
|
options || (options = {});
|
|
var format = options.format || "png", quality = options.quality || 1, multiplier = options.multiplier || 1, cropping = {
|
|
left: options.left,
|
|
top: options.top,
|
|
width: options.width,
|
|
height: options.height
|
|
};
|
|
if (this._isRetinaScaling()) {
|
|
multiplier *= fabric.devicePixelRatio;
|
|
}
|
|
if (multiplier !== 1) {
|
|
return this.__toDataURLWithMultiplier(format, quality, cropping, multiplier);
|
|
} else {
|
|
return this.__toDataURL(format, quality, cropping);
|
|
}
|
|
},
|
|
__toDataURL: function(format, quality, cropping) {
|
|
this.renderAll();
|
|
var canvasEl = this.contextContainer.canvas, croppedCanvasEl = this.__getCroppedCanvas(canvasEl, cropping);
|
|
if (format === "jpg") {
|
|
format = "jpeg";
|
|
}
|
|
var data = fabric.StaticCanvas.supports("toDataURLWithQuality") ? (croppedCanvasEl || canvasEl).toDataURL("image/" + format, quality) : (croppedCanvasEl || canvasEl).toDataURL("image/" + format);
|
|
if (croppedCanvasEl) {
|
|
croppedCanvasEl = null;
|
|
}
|
|
return data;
|
|
},
|
|
__getCroppedCanvas: function(canvasEl, cropping) {
|
|
var croppedCanvasEl, croppedCtx, shouldCrop = "left" in cropping || "top" in cropping || "width" in cropping || "height" in cropping;
|
|
if (shouldCrop) {
|
|
croppedCanvasEl = fabric.util.createCanvasElement();
|
|
croppedCtx = croppedCanvasEl.getContext("2d");
|
|
croppedCanvasEl.width = cropping.width || this.width;
|
|
croppedCanvasEl.height = cropping.height || this.height;
|
|
croppedCtx.drawImage(canvasEl, -cropping.left || 0, -cropping.top || 0);
|
|
}
|
|
return croppedCanvasEl;
|
|
},
|
|
__toDataURLWithMultiplier: function(format, quality, cropping, multiplier) {
|
|
var origWidth = this.getWidth(), origHeight = this.getHeight(), scaledWidth = origWidth * multiplier, scaledHeight = origHeight * multiplier, activeObject = this.getActiveObject(), activeGroup = this.getActiveGroup(), zoom = this.getZoom(), newZoom = zoom * multiplier / fabric.devicePixelRatio;
|
|
if (multiplier > 1) {
|
|
this.setDimensions({
|
|
width: scaledWidth,
|
|
height: scaledHeight
|
|
});
|
|
}
|
|
this.setZoom(newZoom);
|
|
if (cropping.left) {
|
|
cropping.left *= multiplier;
|
|
}
|
|
if (cropping.top) {
|
|
cropping.top *= multiplier;
|
|
}
|
|
if (cropping.width) {
|
|
cropping.width *= multiplier;
|
|
} else if (multiplier < 1) {
|
|
cropping.width = scaledWidth;
|
|
}
|
|
if (cropping.height) {
|
|
cropping.height *= multiplier;
|
|
} else if (multiplier < 1) {
|
|
cropping.height = scaledHeight;
|
|
}
|
|
if (activeGroup) {
|
|
this._tempRemoveBordersControlsFromGroup(activeGroup);
|
|
} else if (activeObject && this.deactivateAll) {
|
|
this.deactivateAll();
|
|
}
|
|
var data = this.__toDataURL(format, quality, cropping);
|
|
if (activeGroup) {
|
|
this._restoreBordersControlsOnGroup(activeGroup);
|
|
} else if (activeObject && this.setActiveObject) {
|
|
this.setActiveObject(activeObject);
|
|
}
|
|
this.setZoom(zoom);
|
|
this.setDimensions({
|
|
width: origWidth,
|
|
height: origHeight
|
|
});
|
|
return data;
|
|
},
|
|
toDataURLWithMultiplier: function(format, multiplier, quality) {
|
|
return this.toDataURL({
|
|
format: format,
|
|
multiplier: multiplier,
|
|
quality: quality
|
|
});
|
|
},
|
|
_tempRemoveBordersControlsFromGroup: function(group) {
|
|
group.origHasControls = group.hasControls;
|
|
group.origBorderColor = group.borderColor;
|
|
group.hasControls = true;
|
|
group.borderColor = "rgba(0,0,0,0)";
|
|
group.forEachObject(function(o) {
|
|
o.origBorderColor = o.borderColor;
|
|
o.borderColor = "rgba(0,0,0,0)";
|
|
});
|
|
},
|
|
_restoreBordersControlsOnGroup: function(group) {
|
|
group.hideControls = group.origHideControls;
|
|
group.borderColor = group.origBorderColor;
|
|
group.forEachObject(function(o) {
|
|
o.borderColor = o.origBorderColor;
|
|
delete o.origBorderColor;
|
|
});
|
|
}
|
|
});
|
|
|
|
fabric.util.object.extend(fabric.StaticCanvas.prototype, {
|
|
loadFromDatalessJSON: function(json, callback, reviver) {
|
|
return this.loadFromJSON(json, callback, reviver);
|
|
},
|
|
loadFromJSON: function(json, callback, reviver) {
|
|
if (!json) {
|
|
return;
|
|
}
|
|
var serialized = typeof json === "string" ? JSON.parse(json) : fabric.util.object.clone(json);
|
|
this.clear();
|
|
var _this = this;
|
|
this._enlivenObjects(serialized.objects, function() {
|
|
_this._setBgOverlay(serialized, function() {
|
|
delete serialized.objects;
|
|
delete serialized.backgroundImage;
|
|
delete serialized.overlayImage;
|
|
delete serialized.background;
|
|
delete serialized.overlay;
|
|
for (var prop in serialized) {
|
|
_this[prop] = serialized[prop];
|
|
}
|
|
callback && callback();
|
|
});
|
|
}, reviver);
|
|
return this;
|
|
},
|
|
_setBgOverlay: function(serialized, callback) {
|
|
var _this = this, loaded = {
|
|
backgroundColor: false,
|
|
overlayColor: false,
|
|
backgroundImage: false,
|
|
overlayImage: false
|
|
};
|
|
if (!serialized.backgroundImage && !serialized.overlayImage && !serialized.background && !serialized.overlay) {
|
|
callback && callback();
|
|
return;
|
|
}
|
|
var cbIfLoaded = function() {
|
|
if (loaded.backgroundImage && loaded.overlayImage && loaded.backgroundColor && loaded.overlayColor) {
|
|
_this.renderAll();
|
|
callback && callback();
|
|
}
|
|
};
|
|
this.__setBgOverlay("backgroundImage", serialized.backgroundImage, loaded, cbIfLoaded);
|
|
this.__setBgOverlay("overlayImage", serialized.overlayImage, loaded, cbIfLoaded);
|
|
this.__setBgOverlay("backgroundColor", serialized.background, loaded, cbIfLoaded);
|
|
this.__setBgOverlay("overlayColor", serialized.overlay, loaded, cbIfLoaded);
|
|
cbIfLoaded();
|
|
},
|
|
__setBgOverlay: function(property, value, loaded, callback) {
|
|
var _this = this;
|
|
if (!value) {
|
|
loaded[property] = true;
|
|
return;
|
|
}
|
|
if (property === "backgroundImage" || property === "overlayImage") {
|
|
fabric.Image.fromObject(value, function(img) {
|
|
_this[property] = img;
|
|
loaded[property] = true;
|
|
callback && callback();
|
|
});
|
|
} else {
|
|
this["set" + fabric.util.string.capitalize(property, true)](value, function() {
|
|
loaded[property] = true;
|
|
callback && callback();
|
|
});
|
|
}
|
|
},
|
|
_enlivenObjects: function(objects, callback, reviver) {
|
|
var _this = this;
|
|
if (!objects || objects.length === 0) {
|
|
callback && callback();
|
|
return;
|
|
}
|
|
var renderOnAddRemove = this.renderOnAddRemove;
|
|
this.renderOnAddRemove = false;
|
|
fabric.util.enlivenObjects(objects, function(enlivenedObjects) {
|
|
enlivenedObjects.forEach(function(obj, index) {
|
|
_this.insertAt(obj, index, true);
|
|
});
|
|
_this.renderOnAddRemove = renderOnAddRemove;
|
|
callback && callback();
|
|
}, null, reviver);
|
|
},
|
|
_toDataURL: function(format, callback) {
|
|
this.clone(function(clone) {
|
|
callback(clone.toDataURL(format));
|
|
});
|
|
},
|
|
_toDataURLWithMultiplier: function(format, multiplier, callback) {
|
|
this.clone(function(clone) {
|
|
callback(clone.toDataURLWithMultiplier(format, multiplier));
|
|
});
|
|
},
|
|
clone: function(callback, properties) {
|
|
var data = JSON.stringify(this.toJSON(properties));
|
|
this.cloneWithoutData(function(clone) {
|
|
clone.loadFromJSON(data, function() {
|
|
callback && callback(clone);
|
|
});
|
|
});
|
|
},
|
|
cloneWithoutData: function(callback) {
|
|
var el = fabric.document.createElement("canvas");
|
|
el.width = this.getWidth();
|
|
el.height = this.getHeight();
|
|
var clone = new fabric.Canvas(el);
|
|
clone.clipTo = this.clipTo;
|
|
if (this.backgroundImage) {
|
|
clone.setBackgroundImage(this.backgroundImage.src, function() {
|
|
clone.renderAll();
|
|
callback && callback(clone);
|
|
});
|
|
clone.backgroundImageOpacity = this.backgroundImageOpacity;
|
|
clone.backgroundImageStretch = this.backgroundImageStretch;
|
|
} else {
|
|
callback && callback(clone);
|
|
}
|
|
}
|
|
});
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), extend = fabric.util.object.extend, toFixed = fabric.util.toFixed, capitalize = fabric.util.string.capitalize, degreesToRadians = fabric.util.degreesToRadians, supportsLineDash = fabric.StaticCanvas.supports("setLineDash");
|
|
if (fabric.Object) {
|
|
return;
|
|
}
|
|
fabric.Object = fabric.util.createClass({
|
|
type: "object",
|
|
originX: "left",
|
|
originY: "top",
|
|
top: 0,
|
|
left: 0,
|
|
width: 0,
|
|
height: 0,
|
|
scaleX: 1,
|
|
scaleY: 1,
|
|
flipX: false,
|
|
flipY: false,
|
|
opacity: 1,
|
|
angle: 0,
|
|
skewX: 0,
|
|
skewY: 0,
|
|
cornerSize: 13,
|
|
transparentCorners: true,
|
|
hoverCursor: null,
|
|
moveCursor: null,
|
|
padding: 0,
|
|
borderColor: "rgba(102,153,255,0.75)",
|
|
borderDashArray: null,
|
|
cornerColor: "rgba(102,153,255,0.5)",
|
|
cornerStrokeColor: null,
|
|
cornerStyle: "rect",
|
|
cornerDashArray: null,
|
|
centeredScaling: false,
|
|
centeredRotation: true,
|
|
fill: "rgb(0,0,0)",
|
|
fillRule: "nonzero",
|
|
globalCompositeOperation: "source-over",
|
|
backgroundColor: "",
|
|
selectionBackgroundColor: "",
|
|
stroke: null,
|
|
strokeWidth: 1,
|
|
strokeDashArray: null,
|
|
strokeLineCap: "butt",
|
|
strokeLineJoin: "miter",
|
|
strokeMiterLimit: 10,
|
|
shadow: null,
|
|
borderOpacityWhenMoving: .4,
|
|
borderScaleFactor: 1,
|
|
transformMatrix: null,
|
|
minScaleLimit: .01,
|
|
selectable: true,
|
|
evented: true,
|
|
visible: true,
|
|
hasControls: true,
|
|
hasBorders: true,
|
|
hasRotatingPoint: true,
|
|
rotatingPointOffset: 40,
|
|
perPixelTargetFind: false,
|
|
includeDefaultValues: true,
|
|
clipTo: null,
|
|
lockMovementX: false,
|
|
lockMovementY: false,
|
|
lockRotation: false,
|
|
lockScalingX: false,
|
|
lockScalingY: false,
|
|
lockUniScaling: false,
|
|
lockSkewingX: false,
|
|
lockSkewingY: false,
|
|
lockScalingFlip: false,
|
|
excludeFromExport: false,
|
|
stateProperties: ("top left width height scaleX scaleY flipX flipY originX originY transformMatrix " + "stroke strokeWidth strokeDashArray strokeLineCap strokeLineJoin strokeMiterLimit " + "angle opacity fill fillRule globalCompositeOperation shadow clipTo visible backgroundColor " + "alignX alignY meetOrSlice skewX skewY").split(" "),
|
|
initialize: function(options) {
|
|
if (options) {
|
|
this.setOptions(options);
|
|
}
|
|
},
|
|
_initGradient: function(options) {
|
|
if (options.fill && options.fill.colorStops && !(options.fill instanceof fabric.Gradient)) {
|
|
this.set("fill", new fabric.Gradient(options.fill));
|
|
}
|
|
if (options.stroke && options.stroke.colorStops && !(options.stroke instanceof fabric.Gradient)) {
|
|
this.set("stroke", new fabric.Gradient(options.stroke));
|
|
}
|
|
},
|
|
_initPattern: function(options) {
|
|
if (options.fill && options.fill.source && !(options.fill instanceof fabric.Pattern)) {
|
|
this.set("fill", new fabric.Pattern(options.fill));
|
|
}
|
|
if (options.stroke && options.stroke.source && !(options.stroke instanceof fabric.Pattern)) {
|
|
this.set("stroke", new fabric.Pattern(options.stroke));
|
|
}
|
|
},
|
|
_initClipping: function(options) {
|
|
if (!options.clipTo || typeof options.clipTo !== "string") {
|
|
return;
|
|
}
|
|
var functionBody = fabric.util.getFunctionBody(options.clipTo);
|
|
if (typeof functionBody !== "undefined") {
|
|
this.clipTo = new Function("ctx", functionBody);
|
|
}
|
|
},
|
|
setOptions: function(options) {
|
|
for (var prop in options) {
|
|
this.set(prop, options[prop]);
|
|
}
|
|
this._initGradient(options);
|
|
this._initPattern(options);
|
|
this._initClipping(options);
|
|
},
|
|
transform: function(ctx, fromLeft) {
|
|
if (this.group && !this.group._transformDone && this.group === this.canvas._activeGroup) {
|
|
this.group.transform(ctx);
|
|
}
|
|
var center = fromLeft ? this._getLeftTopCoords() : this.getCenterPoint();
|
|
ctx.translate(center.x, center.y);
|
|
ctx.rotate(degreesToRadians(this.angle));
|
|
ctx.scale(this.scaleX * (this.flipX ? -1 : 1), this.scaleY * (this.flipY ? -1 : 1));
|
|
ctx.transform(1, 0, Math.tan(degreesToRadians(this.skewX)), 1, 0, 0);
|
|
ctx.transform(1, Math.tan(degreesToRadians(this.skewY)), 0, 1, 0, 0);
|
|
},
|
|
toObject: function(propertiesToInclude) {
|
|
var NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS, object = {
|
|
type: this.type,
|
|
originX: this.originX,
|
|
originY: this.originY,
|
|
left: toFixed(this.left, NUM_FRACTION_DIGITS),
|
|
top: toFixed(this.top, NUM_FRACTION_DIGITS),
|
|
width: toFixed(this.width, NUM_FRACTION_DIGITS),
|
|
height: toFixed(this.height, NUM_FRACTION_DIGITS),
|
|
fill: this.fill && this.fill.toObject ? this.fill.toObject() : this.fill,
|
|
stroke: this.stroke && this.stroke.toObject ? this.stroke.toObject() : this.stroke,
|
|
strokeWidth: toFixed(this.strokeWidth, NUM_FRACTION_DIGITS),
|
|
strokeDashArray: this.strokeDashArray ? this.strokeDashArray.concat() : this.strokeDashArray,
|
|
strokeLineCap: this.strokeLineCap,
|
|
strokeLineJoin: this.strokeLineJoin,
|
|
strokeMiterLimit: toFixed(this.strokeMiterLimit, NUM_FRACTION_DIGITS),
|
|
scaleX: toFixed(this.scaleX, NUM_FRACTION_DIGITS),
|
|
scaleY: toFixed(this.scaleY, NUM_FRACTION_DIGITS),
|
|
angle: toFixed(this.getAngle(), NUM_FRACTION_DIGITS),
|
|
flipX: this.flipX,
|
|
flipY: this.flipY,
|
|
opacity: toFixed(this.opacity, NUM_FRACTION_DIGITS),
|
|
shadow: this.shadow && this.shadow.toObject ? this.shadow.toObject() : this.shadow,
|
|
visible: this.visible,
|
|
clipTo: this.clipTo && String(this.clipTo),
|
|
backgroundColor: this.backgroundColor,
|
|
fillRule: this.fillRule,
|
|
globalCompositeOperation: this.globalCompositeOperation,
|
|
transformMatrix: this.transformMatrix ? this.transformMatrix.concat() : this.transformMatrix,
|
|
skewX: toFixed(this.skewX, NUM_FRACTION_DIGITS),
|
|
skewY: toFixed(this.skewY, NUM_FRACTION_DIGITS)
|
|
};
|
|
if (!this.includeDefaultValues) {
|
|
object = this._removeDefaultValues(object);
|
|
}
|
|
fabric.util.populateWithProperties(this, object, propertiesToInclude);
|
|
return object;
|
|
},
|
|
toDatalessObject: function(propertiesToInclude) {
|
|
return this.toObject(propertiesToInclude);
|
|
},
|
|
_removeDefaultValues: function(object) {
|
|
var prototype = fabric.util.getKlass(object.type).prototype, stateProperties = prototype.stateProperties;
|
|
stateProperties.forEach(function(prop) {
|
|
if (object[prop] === prototype[prop]) {
|
|
delete object[prop];
|
|
}
|
|
var isArray = Object.prototype.toString.call(object[prop]) === "[object Array]" && Object.prototype.toString.call(prototype[prop]) === "[object Array]";
|
|
if (isArray && object[prop].length === 0 && prototype[prop].length === 0) {
|
|
delete object[prop];
|
|
}
|
|
});
|
|
return object;
|
|
},
|
|
toString: function() {
|
|
return "#<fabric." + capitalize(this.type) + ">";
|
|
},
|
|
get: function(property) {
|
|
return this[property];
|
|
},
|
|
getObjectScaling: function() {
|
|
var scaleX = this.scaleX, scaleY = this.scaleY;
|
|
if (this.group) {
|
|
var scaling = this.group.getObjectScaling();
|
|
scaleX *= scaling.scaleX;
|
|
scaleY *= scaling.scaleY;
|
|
}
|
|
return {
|
|
scaleX: scaleX,
|
|
scaleY: scaleY
|
|
};
|
|
},
|
|
_setObject: function(obj) {
|
|
for (var prop in obj) {
|
|
this._set(prop, obj[prop]);
|
|
}
|
|
},
|
|
set: function(key, value) {
|
|
if (typeof key === "object") {
|
|
this._setObject(key);
|
|
} else {
|
|
if (typeof value === "function" && key !== "clipTo") {
|
|
this._set(key, value(this.get(key)));
|
|
} else {
|
|
this._set(key, value);
|
|
}
|
|
}
|
|
return this;
|
|
},
|
|
_set: function(key, value) {
|
|
var shouldConstrainValue = key === "scaleX" || key === "scaleY";
|
|
if (shouldConstrainValue) {
|
|
value = this._constrainScale(value);
|
|
}
|
|
if (key === "scaleX" && value < 0) {
|
|
this.flipX = !this.flipX;
|
|
value *= -1;
|
|
} else if (key === "scaleY" && value < 0) {
|
|
this.flipY = !this.flipY;
|
|
value *= -1;
|
|
} else if (key === "shadow" && value && !(value instanceof fabric.Shadow)) {
|
|
value = new fabric.Shadow(value);
|
|
}
|
|
this[key] = value;
|
|
if (key === "width" || key === "height") {
|
|
this.minScaleLimit = Math.min(.1, 1 / Math.max(this.width, this.height));
|
|
}
|
|
return this;
|
|
},
|
|
setOnGroup: function() {},
|
|
toggle: function(property) {
|
|
var value = this.get(property);
|
|
if (typeof value === "boolean") {
|
|
this.set(property, !value);
|
|
}
|
|
return this;
|
|
},
|
|
setSourcePath: function(value) {
|
|
this.sourcePath = value;
|
|
return this;
|
|
},
|
|
getViewportTransform: function() {
|
|
if (this.canvas && this.canvas.viewportTransform) {
|
|
return this.canvas.viewportTransform;
|
|
}
|
|
return [ 1, 0, 0, 1, 0, 0 ];
|
|
},
|
|
render: function(ctx, noTransform) {
|
|
if (this.width === 0 && this.height === 0 || !this.visible) {
|
|
return;
|
|
}
|
|
ctx.save();
|
|
this._setupCompositeOperation(ctx);
|
|
this.drawSelectionBackground(ctx);
|
|
if (!noTransform) {
|
|
this.transform(ctx);
|
|
}
|
|
this._setStrokeStyles(ctx);
|
|
this._setFillStyles(ctx);
|
|
if (this.transformMatrix) {
|
|
ctx.transform.apply(ctx, this.transformMatrix);
|
|
}
|
|
this._setOpacity(ctx);
|
|
this._setShadow(ctx);
|
|
this.clipTo && fabric.util.clipContext(this, ctx);
|
|
this._render(ctx, noTransform);
|
|
this.clipTo && ctx.restore();
|
|
ctx.restore();
|
|
},
|
|
_setOpacity: function(ctx) {
|
|
if (this.group) {
|
|
this.group._setOpacity(ctx);
|
|
}
|
|
ctx.globalAlpha *= this.opacity;
|
|
},
|
|
_setStrokeStyles: function(ctx) {
|
|
if (this.stroke) {
|
|
ctx.lineWidth = this.strokeWidth;
|
|
ctx.lineCap = this.strokeLineCap;
|
|
ctx.lineJoin = this.strokeLineJoin;
|
|
ctx.miterLimit = this.strokeMiterLimit;
|
|
ctx.strokeStyle = this.stroke.toLive ? this.stroke.toLive(ctx, this) : this.stroke;
|
|
}
|
|
},
|
|
_setFillStyles: function(ctx) {
|
|
if (this.fill) {
|
|
ctx.fillStyle = this.fill.toLive ? this.fill.toLive(ctx, this) : this.fill;
|
|
}
|
|
},
|
|
_setLineDash: function(ctx, dashArray, alternative) {
|
|
if (!dashArray) {
|
|
return;
|
|
}
|
|
if (1 & dashArray.length) {
|
|
dashArray.push.apply(dashArray, dashArray);
|
|
}
|
|
if (supportsLineDash) {
|
|
ctx.setLineDash(dashArray);
|
|
} else {
|
|
alternative && alternative(ctx);
|
|
}
|
|
},
|
|
_renderControls: function(ctx, noTransform) {
|
|
if (!this.active || noTransform || this.group && this.group !== this.canvas.getActiveGroup()) {
|
|
return;
|
|
}
|
|
var vpt = this.getViewportTransform(), matrix = this.calcTransformMatrix(), options;
|
|
matrix = fabric.util.multiplyTransformMatrices(vpt, matrix);
|
|
options = fabric.util.qrDecompose(matrix);
|
|
ctx.save();
|
|
ctx.translate(options.translateX, options.translateY);
|
|
ctx.lineWidth = 1 / this.borderScaleFactor;
|
|
ctx.globalAlpha = this.isMoving ? this.borderOpacityWhenMoving : 1;
|
|
if (this.group && this.group === this.canvas.getActiveGroup()) {
|
|
ctx.rotate(degreesToRadians(options.angle));
|
|
this.drawBordersInGroup(ctx, options);
|
|
} else {
|
|
ctx.rotate(degreesToRadians(this.angle));
|
|
this.drawBorders(ctx);
|
|
}
|
|
this.drawControls(ctx);
|
|
ctx.restore();
|
|
},
|
|
_setShadow: function(ctx) {
|
|
if (!this.shadow) {
|
|
return;
|
|
}
|
|
var multX = this.canvas && this.canvas.viewportTransform[0] || 1, multY = this.canvas && this.canvas.viewportTransform[3] || 1, scaling = this.getObjectScaling();
|
|
if (this.canvas && this.canvas._isRetinaScaling()) {
|
|
multX *= fabric.devicePixelRatio;
|
|
multY *= fabric.devicePixelRatio;
|
|
}
|
|
ctx.shadowColor = this.shadow.color;
|
|
ctx.shadowBlur = this.shadow.blur * (multX + multY) * (scaling.scaleX + scaling.scaleY) / 4;
|
|
ctx.shadowOffsetX = this.shadow.offsetX * multX * scaling.scaleX;
|
|
ctx.shadowOffsetY = this.shadow.offsetY * multY * scaling.scaleY;
|
|
},
|
|
_removeShadow: function(ctx) {
|
|
if (!this.shadow) {
|
|
return;
|
|
}
|
|
ctx.shadowColor = "";
|
|
ctx.shadowBlur = ctx.shadowOffsetX = ctx.shadowOffsetY = 0;
|
|
},
|
|
_renderFill: function(ctx) {
|
|
if (!this.fill) {
|
|
return;
|
|
}
|
|
ctx.save();
|
|
if (this.fill.gradientTransform) {
|
|
var g = this.fill.gradientTransform;
|
|
ctx.transform.apply(ctx, g);
|
|
}
|
|
if (this.fill.toLive) {
|
|
ctx.translate(-this.width / 2 + this.fill.offsetX || 0, -this.height / 2 + this.fill.offsetY || 0);
|
|
}
|
|
if (this.fillRule === "evenodd") {
|
|
ctx.fill("evenodd");
|
|
} else {
|
|
ctx.fill();
|
|
}
|
|
ctx.restore();
|
|
},
|
|
_renderStroke: function(ctx) {
|
|
if (!this.stroke || this.strokeWidth === 0) {
|
|
return;
|
|
}
|
|
if (this.shadow && !this.shadow.affectStroke) {
|
|
this._removeShadow(ctx);
|
|
}
|
|
ctx.save();
|
|
this._setLineDash(ctx, this.strokeDashArray, this._renderDashedStroke);
|
|
if (this.stroke.gradientTransform) {
|
|
var g = this.stroke.gradientTransform;
|
|
ctx.transform.apply(ctx, g);
|
|
}
|
|
if (this.stroke.toLive) {
|
|
ctx.translate(-this.width / 2 + this.stroke.offsetX || 0, -this.height / 2 + this.stroke.offsetY || 0);
|
|
}
|
|
ctx.stroke();
|
|
ctx.restore();
|
|
},
|
|
clone: function(callback, propertiesToInclude) {
|
|
if (this.constructor.fromObject) {
|
|
return this.constructor.fromObject(this.toObject(propertiesToInclude), callback);
|
|
}
|
|
return new fabric.Object(this.toObject(propertiesToInclude));
|
|
},
|
|
cloneAsImage: function(callback) {
|
|
var dataUrl = this.toDataURL();
|
|
fabric.util.loadImage(dataUrl, function(img) {
|
|
if (callback) {
|
|
callback(new fabric.Image(img));
|
|
}
|
|
});
|
|
return this;
|
|
},
|
|
toDataURL: function(options) {
|
|
options || (options = {});
|
|
var el = fabric.util.createCanvasElement(), boundingRect = this.getBoundingRect();
|
|
el.width = boundingRect.width;
|
|
el.height = boundingRect.height;
|
|
fabric.util.wrapElement(el, "div");
|
|
var canvas = new fabric.StaticCanvas(el);
|
|
if (options.format === "jpg") {
|
|
options.format = "jpeg";
|
|
}
|
|
if (options.format === "jpeg") {
|
|
canvas.backgroundColor = "#fff";
|
|
}
|
|
var origParams = {
|
|
active: this.get("active"),
|
|
left: this.getLeft(),
|
|
top: this.getTop()
|
|
};
|
|
this.set("active", false);
|
|
this.setPositionByOrigin(new fabric.Point(canvas.getWidth() / 2, canvas.getHeight() / 2), "center", "center");
|
|
var originalCanvas = this.canvas;
|
|
canvas.add(this);
|
|
var data = canvas.toDataURL(options);
|
|
this.set(origParams).setCoords();
|
|
this.canvas = originalCanvas;
|
|
canvas.dispose();
|
|
canvas = null;
|
|
return data;
|
|
},
|
|
isType: function(type) {
|
|
return this.type === type;
|
|
},
|
|
complexity: function() {
|
|
return 0;
|
|
},
|
|
toJSON: function(propertiesToInclude) {
|
|
return this.toObject(propertiesToInclude);
|
|
},
|
|
setGradient: function(property, options) {
|
|
options || (options = {});
|
|
var gradient = {
|
|
colorStops: []
|
|
};
|
|
gradient.type = options.type || (options.r1 || options.r2 ? "radial" : "linear");
|
|
gradient.coords = {
|
|
x1: options.x1,
|
|
y1: options.y1,
|
|
x2: options.x2,
|
|
y2: options.y2
|
|
};
|
|
if (options.r1 || options.r2) {
|
|
gradient.coords.r1 = options.r1;
|
|
gradient.coords.r2 = options.r2;
|
|
}
|
|
options.gradientTransform && (gradient.gradientTransform = options.gradientTransform);
|
|
for (var position in options.colorStops) {
|
|
var color = new fabric.Color(options.colorStops[position]);
|
|
gradient.colorStops.push({
|
|
offset: position,
|
|
color: color.toRgb(),
|
|
opacity: color.getAlpha()
|
|
});
|
|
}
|
|
return this.set(property, fabric.Gradient.forObject(this, gradient));
|
|
},
|
|
setPatternFill: function(options) {
|
|
return this.set("fill", new fabric.Pattern(options));
|
|
},
|
|
setShadow: function(options) {
|
|
return this.set("shadow", options ? new fabric.Shadow(options) : null);
|
|
},
|
|
setColor: function(color) {
|
|
this.set("fill", color);
|
|
return this;
|
|
},
|
|
setAngle: function(angle) {
|
|
var shouldCenterOrigin = (this.originX !== "center" || this.originY !== "center") && this.centeredRotation;
|
|
if (shouldCenterOrigin) {
|
|
this._setOriginToCenter();
|
|
}
|
|
this.set("angle", angle);
|
|
if (shouldCenterOrigin) {
|
|
this._resetOrigin();
|
|
}
|
|
return this;
|
|
},
|
|
centerH: function() {
|
|
this.canvas && this.canvas.centerObjectH(this);
|
|
return this;
|
|
},
|
|
viewportCenterH: function() {
|
|
this.canvas && this.canvas.viewportCenterObjectH(this);
|
|
return this;
|
|
},
|
|
centerV: function() {
|
|
this.canvas && this.canvas.centerObjectV(this);
|
|
return this;
|
|
},
|
|
viewportCenterV: function() {
|
|
this.canvas && this.canvas.viewportCenterObjectV(this);
|
|
return this;
|
|
},
|
|
center: function() {
|
|
this.canvas && this.canvas.centerObject(this);
|
|
return this;
|
|
},
|
|
viewportCenter: function() {
|
|
this.canvas && this.canvas.viewportCenterObject(this);
|
|
return this;
|
|
},
|
|
remove: function() {
|
|
this.canvas && this.canvas.remove(this);
|
|
return this;
|
|
},
|
|
getLocalPointer: function(e, pointer) {
|
|
pointer = pointer || this.canvas.getPointer(e);
|
|
var pClicked = new fabric.Point(pointer.x, pointer.y), objectLeftTop = this._getLeftTopCoords();
|
|
if (this.angle) {
|
|
pClicked = fabric.util.rotatePoint(pClicked, objectLeftTop, fabric.util.degreesToRadians(-this.angle));
|
|
}
|
|
return {
|
|
x: pClicked.x - objectLeftTop.x,
|
|
y: pClicked.y - objectLeftTop.y
|
|
};
|
|
},
|
|
_setupCompositeOperation: function(ctx) {
|
|
if (this.globalCompositeOperation) {
|
|
ctx.globalCompositeOperation = this.globalCompositeOperation;
|
|
}
|
|
}
|
|
});
|
|
fabric.util.createAccessors(fabric.Object);
|
|
fabric.Object.prototype.rotate = fabric.Object.prototype.setAngle;
|
|
extend(fabric.Object.prototype, fabric.Observable);
|
|
fabric.Object.NUM_FRACTION_DIGITS = 2;
|
|
fabric.Object.__uid = 0;
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function() {
|
|
var degreesToRadians = fabric.util.degreesToRadians, originXOffset = {
|
|
left: -.5,
|
|
center: 0,
|
|
right: .5
|
|
}, originYOffset = {
|
|
top: -.5,
|
|
center: 0,
|
|
bottom: .5
|
|
};
|
|
fabric.util.object.extend(fabric.Object.prototype, {
|
|
translateToGivenOrigin: function(point, fromOriginX, fromOriginY, toOriginX, toOriginY) {
|
|
var x = point.x, y = point.y, offsetX, offsetY, dim;
|
|
if (typeof fromOriginX === "string") {
|
|
fromOriginX = originXOffset[fromOriginX];
|
|
} else {
|
|
fromOriginX -= .5;
|
|
}
|
|
if (typeof toOriginX === "string") {
|
|
toOriginX = originXOffset[toOriginX];
|
|
} else {
|
|
toOriginX -= .5;
|
|
}
|
|
offsetX = toOriginX - fromOriginX;
|
|
if (typeof fromOriginY === "string") {
|
|
fromOriginY = originYOffset[fromOriginY];
|
|
} else {
|
|
fromOriginY -= .5;
|
|
}
|
|
if (typeof toOriginY === "string") {
|
|
toOriginY = originYOffset[toOriginY];
|
|
} else {
|
|
toOriginY -= .5;
|
|
}
|
|
offsetY = toOriginY - fromOriginY;
|
|
if (offsetX || offsetY) {
|
|
dim = this._getTransformedDimensions();
|
|
x = point.x + offsetX * dim.x;
|
|
y = point.y + offsetY * dim.y;
|
|
}
|
|
return new fabric.Point(x, y);
|
|
},
|
|
translateToCenterPoint: function(point, originX, originY) {
|
|
var p = this.translateToGivenOrigin(point, originX, originY, "center", "center");
|
|
if (this.angle) {
|
|
return fabric.util.rotatePoint(p, point, degreesToRadians(this.angle));
|
|
}
|
|
return p;
|
|
},
|
|
translateToOriginPoint: function(center, originX, originY) {
|
|
var p = this.translateToGivenOrigin(center, "center", "center", originX, originY);
|
|
if (this.angle) {
|
|
return fabric.util.rotatePoint(p, center, degreesToRadians(this.angle));
|
|
}
|
|
return p;
|
|
},
|
|
getCenterPoint: function() {
|
|
var leftTop = new fabric.Point(this.left, this.top);
|
|
return this.translateToCenterPoint(leftTop, this.originX, this.originY);
|
|
},
|
|
getPointByOrigin: function(originX, originY) {
|
|
var center = this.getCenterPoint();
|
|
return this.translateToOriginPoint(center, originX, originY);
|
|
},
|
|
toLocalPoint: function(point, originX, originY) {
|
|
var center = this.getCenterPoint(), p, p2;
|
|
if (typeof originX !== "undefined" && typeof originY !== "undefined") {
|
|
p = this.translateToGivenOrigin(center, "center", "center", originX, originY);
|
|
} else {
|
|
p = new fabric.Point(this.left, this.top);
|
|
}
|
|
p2 = new fabric.Point(point.x, point.y);
|
|
if (this.angle) {
|
|
p2 = fabric.util.rotatePoint(p2, center, -degreesToRadians(this.angle));
|
|
}
|
|
return p2.subtractEquals(p);
|
|
},
|
|
setPositionByOrigin: function(pos, originX, originY) {
|
|
var center = this.translateToCenterPoint(pos, originX, originY), position = this.translateToOriginPoint(center, this.originX, this.originY);
|
|
this.set("left", position.x);
|
|
this.set("top", position.y);
|
|
},
|
|
adjustPosition: function(to) {
|
|
var angle = degreesToRadians(this.angle), hypotFull = this.getWidth(), xFull = Math.cos(angle) * hypotFull, yFull = Math.sin(angle) * hypotFull, offsetFrom, offsetTo;
|
|
if (typeof this.originX === "string") {
|
|
offsetFrom = originXOffset[this.originX];
|
|
} else {
|
|
offsetFrom = this.originX - .5;
|
|
}
|
|
if (typeof to === "string") {
|
|
offsetTo = originXOffset[to];
|
|
} else {
|
|
offsetTo = to - .5;
|
|
}
|
|
this.left += xFull * (offsetTo - offsetFrom);
|
|
this.top += yFull * (offsetTo - offsetFrom);
|
|
this.setCoords();
|
|
this.originX = to;
|
|
},
|
|
_setOriginToCenter: function() {
|
|
this._originalOriginX = this.originX;
|
|
this._originalOriginY = this.originY;
|
|
var center = this.getCenterPoint();
|
|
this.originX = "center";
|
|
this.originY = "center";
|
|
this.left = center.x;
|
|
this.top = center.y;
|
|
},
|
|
_resetOrigin: function() {
|
|
var originPoint = this.translateToOriginPoint(this.getCenterPoint(), this._originalOriginX, this._originalOriginY);
|
|
this.originX = this._originalOriginX;
|
|
this.originY = this._originalOriginY;
|
|
this.left = originPoint.x;
|
|
this.top = originPoint.y;
|
|
this._originalOriginX = null;
|
|
this._originalOriginY = null;
|
|
},
|
|
_getLeftTopCoords: function() {
|
|
return this.translateToOriginPoint(this.getCenterPoint(), "left", "top");
|
|
}
|
|
});
|
|
})();
|
|
|
|
(function() {
|
|
function getCoords(oCoords) {
|
|
return [ new fabric.Point(oCoords.tl.x, oCoords.tl.y), new fabric.Point(oCoords.tr.x, oCoords.tr.y), new fabric.Point(oCoords.br.x, oCoords.br.y), new fabric.Point(oCoords.bl.x, oCoords.bl.y) ];
|
|
}
|
|
var degreesToRadians = fabric.util.degreesToRadians, multiplyMatrices = fabric.util.multiplyTransformMatrices;
|
|
fabric.util.object.extend(fabric.Object.prototype, {
|
|
oCoords: null,
|
|
intersectsWithRect: function(pointTL, pointBR) {
|
|
var oCoords = getCoords(this.oCoords), intersection = fabric.Intersection.intersectPolygonRectangle(oCoords, pointTL, pointBR);
|
|
return intersection.status === "Intersection";
|
|
},
|
|
intersectsWithObject: function(other) {
|
|
var intersection = fabric.Intersection.intersectPolygonPolygon(getCoords(this.oCoords), getCoords(other.oCoords));
|
|
return intersection.status === "Intersection";
|
|
},
|
|
isContainedWithinObject: function(other) {
|
|
var boundingRect = other.getBoundingRect(), point1 = new fabric.Point(boundingRect.left, boundingRect.top), point2 = new fabric.Point(boundingRect.left + boundingRect.width, boundingRect.top + boundingRect.height);
|
|
return this.isContainedWithinRect(point1, point2);
|
|
},
|
|
isContainedWithinRect: function(pointTL, pointBR) {
|
|
var boundingRect = this.getBoundingRect();
|
|
return boundingRect.left >= pointTL.x && boundingRect.left + boundingRect.width <= pointBR.x && boundingRect.top >= pointTL.y && boundingRect.top + boundingRect.height <= pointBR.y;
|
|
},
|
|
containsPoint: function(point) {
|
|
if (!this.oCoords) {
|
|
this.setCoords();
|
|
}
|
|
var lines = this._getImageLines(this.oCoords), xPoints = this._findCrossPoints(point, lines);
|
|
return xPoints !== 0 && xPoints % 2 === 1;
|
|
},
|
|
_getImageLines: function(oCoords) {
|
|
return {
|
|
topline: {
|
|
o: oCoords.tl,
|
|
d: oCoords.tr
|
|
},
|
|
rightline: {
|
|
o: oCoords.tr,
|
|
d: oCoords.br
|
|
},
|
|
bottomline: {
|
|
o: oCoords.br,
|
|
d: oCoords.bl
|
|
},
|
|
leftline: {
|
|
o: oCoords.bl,
|
|
d: oCoords.tl
|
|
}
|
|
};
|
|
},
|
|
_findCrossPoints: function(point, oCoords) {
|
|
var b1, b2, a1, a2, xi, yi, xcount = 0, iLine;
|
|
for (var lineKey in oCoords) {
|
|
iLine = oCoords[lineKey];
|
|
if (iLine.o.y < point.y && iLine.d.y < point.y) {
|
|
continue;
|
|
}
|
|
if (iLine.o.y >= point.y && iLine.d.y >= point.y) {
|
|
continue;
|
|
}
|
|
if (iLine.o.x === iLine.d.x && iLine.o.x >= point.x) {
|
|
xi = iLine.o.x;
|
|
yi = point.y;
|
|
} else {
|
|
b1 = 0;
|
|
b2 = (iLine.d.y - iLine.o.y) / (iLine.d.x - iLine.o.x);
|
|
a1 = point.y - b1 * point.x;
|
|
a2 = iLine.o.y - b2 * iLine.o.x;
|
|
xi = -(a1 - a2) / (b1 - b2);
|
|
yi = a1 + b1 * xi;
|
|
}
|
|
if (xi >= point.x) {
|
|
xcount += 1;
|
|
}
|
|
if (xcount === 2) {
|
|
break;
|
|
}
|
|
}
|
|
return xcount;
|
|
},
|
|
getBoundingRectWidth: function() {
|
|
return this.getBoundingRect().width;
|
|
},
|
|
getBoundingRectHeight: function() {
|
|
return this.getBoundingRect().height;
|
|
},
|
|
getBoundingRect: function() {
|
|
this.oCoords || this.setCoords();
|
|
return fabric.util.makeBoundingBoxFromPoints([ this.oCoords.tl, this.oCoords.tr, this.oCoords.br, this.oCoords.bl ]);
|
|
},
|
|
getWidth: function() {
|
|
return this._getTransformedDimensions().x;
|
|
},
|
|
getHeight: function() {
|
|
return this._getTransformedDimensions().y;
|
|
},
|
|
_constrainScale: function(value) {
|
|
if (Math.abs(value) < this.minScaleLimit) {
|
|
if (value < 0) {
|
|
return -this.minScaleLimit;
|
|
} else {
|
|
return this.minScaleLimit;
|
|
}
|
|
}
|
|
return value;
|
|
},
|
|
scale: function(value) {
|
|
value = this._constrainScale(value);
|
|
if (value < 0) {
|
|
this.flipX = !this.flipX;
|
|
this.flipY = !this.flipY;
|
|
value *= -1;
|
|
}
|
|
this.scaleX = value;
|
|
this.scaleY = value;
|
|
this.setCoords();
|
|
return this;
|
|
},
|
|
scaleToWidth: function(value) {
|
|
var boundingRectFactor = this.getBoundingRect().width / this.getWidth();
|
|
return this.scale(value / this.width / boundingRectFactor);
|
|
},
|
|
scaleToHeight: function(value) {
|
|
var boundingRectFactor = this.getBoundingRect().height / this.getHeight();
|
|
return this.scale(value / this.height / boundingRectFactor);
|
|
},
|
|
setCoords: function() {
|
|
var theta = degreesToRadians(this.angle), vpt = this.getViewportTransform(), dim = this._calculateCurrentDimensions(), currentWidth = dim.x, currentHeight = dim.y;
|
|
if (currentWidth < 0) {
|
|
currentWidth = Math.abs(currentWidth);
|
|
}
|
|
var sinTh = Math.sin(theta), cosTh = Math.cos(theta), _angle = currentWidth > 0 ? Math.atan(currentHeight / currentWidth) : 0, _hypotenuse = currentWidth / Math.cos(_angle) / 2, offsetX = Math.cos(_angle + theta) * _hypotenuse, offsetY = Math.sin(_angle + theta) * _hypotenuse, coords = fabric.util.transformPoint(this.getCenterPoint(), vpt), tl = new fabric.Point(coords.x - offsetX, coords.y - offsetY), tr = new fabric.Point(tl.x + currentWidth * cosTh, tl.y + currentWidth * sinTh), bl = new fabric.Point(tl.x - currentHeight * sinTh, tl.y + currentHeight * cosTh), br = new fabric.Point(coords.x + offsetX, coords.y + offsetY), ml = new fabric.Point((tl.x + bl.x) / 2, (tl.y + bl.y) / 2), mt = new fabric.Point((tr.x + tl.x) / 2, (tr.y + tl.y) / 2), mr = new fabric.Point((br.x + tr.x) / 2, (br.y + tr.y) / 2), mb = new fabric.Point((br.x + bl.x) / 2, (br.y + bl.y) / 2), mtr = new fabric.Point(mt.x + sinTh * this.rotatingPointOffset, mt.y - cosTh * this.rotatingPointOffset);
|
|
this.oCoords = {
|
|
tl: tl,
|
|
tr: tr,
|
|
br: br,
|
|
bl: bl,
|
|
ml: ml,
|
|
mt: mt,
|
|
mr: mr,
|
|
mb: mb,
|
|
mtr: mtr
|
|
};
|
|
this._setCornerCoords && this._setCornerCoords();
|
|
return this;
|
|
},
|
|
_calcRotateMatrix: function() {
|
|
if (this.angle) {
|
|
var theta = degreesToRadians(this.angle), cos = Math.cos(theta), sin = Math.sin(theta);
|
|
return [ cos, sin, -sin, cos, 0, 0 ];
|
|
}
|
|
return [ 1, 0, 0, 1, 0, 0 ];
|
|
},
|
|
calcTransformMatrix: function() {
|
|
var center = this.getCenterPoint(), translateMatrix = [ 1, 0, 0, 1, center.x, center.y ], rotateMatrix = this._calcRotateMatrix(), dimensionMatrix = this._calcDimensionsTransformMatrix(this.skewX, this.skewY, true), matrix = this.group ? this.group.calcTransformMatrix() : [ 1, 0, 0, 1, 0, 0 ];
|
|
matrix = multiplyMatrices(matrix, translateMatrix);
|
|
matrix = multiplyMatrices(matrix, rotateMatrix);
|
|
matrix = multiplyMatrices(matrix, dimensionMatrix);
|
|
return matrix;
|
|
},
|
|
_calcDimensionsTransformMatrix: function(skewX, skewY, flipping) {
|
|
var skewMatrixX = [ 1, 0, Math.tan(degreesToRadians(skewX)), 1 ], skewMatrixY = [ 1, Math.tan(degreesToRadians(skewY)), 0, 1 ], scaleX = this.scaleX * (flipping && this.flipX ? -1 : 1), scaleY = this.scaleY * (flipping && this.flipY ? -1 : 1), scaleMatrix = [ scaleX, 0, 0, scaleY ], m = multiplyMatrices(scaleMatrix, skewMatrixX, true);
|
|
return multiplyMatrices(m, skewMatrixY, true);
|
|
}
|
|
});
|
|
})();
|
|
|
|
fabric.util.object.extend(fabric.Object.prototype, {
|
|
sendToBack: function() {
|
|
if (this.group) {
|
|
fabric.StaticCanvas.prototype.sendToBack.call(this.group, this);
|
|
} else {
|
|
this.canvas.sendToBack(this);
|
|
}
|
|
return this;
|
|
},
|
|
bringToFront: function() {
|
|
if (this.group) {
|
|
fabric.StaticCanvas.prototype.bringToFront.call(this.group, this);
|
|
} else {
|
|
this.canvas.bringToFront(this);
|
|
}
|
|
return this;
|
|
},
|
|
sendBackwards: function(intersecting) {
|
|
if (this.group) {
|
|
fabric.StaticCanvas.prototype.sendBackwards.call(this.group, this, intersecting);
|
|
} else {
|
|
this.canvas.sendBackwards(this, intersecting);
|
|
}
|
|
return this;
|
|
},
|
|
bringForward: function(intersecting) {
|
|
if (this.group) {
|
|
fabric.StaticCanvas.prototype.bringForward.call(this.group, this, intersecting);
|
|
} else {
|
|
this.canvas.bringForward(this, intersecting);
|
|
}
|
|
return this;
|
|
},
|
|
moveTo: function(index) {
|
|
if (this.group) {
|
|
fabric.StaticCanvas.prototype.moveTo.call(this.group, this, index);
|
|
} else {
|
|
this.canvas.moveTo(this, index);
|
|
}
|
|
return this;
|
|
}
|
|
});
|
|
|
|
(function() {
|
|
function getSvgColorString(prop, value) {
|
|
if (!value) {
|
|
return prop + ": none; ";
|
|
} else if (value.toLive) {
|
|
return prop + ": url(#SVGID_" + value.id + "); ";
|
|
} else {
|
|
var color = new fabric.Color(value), str = prop + ": " + color.toRgb() + "; ", opacity = color.getAlpha();
|
|
if (opacity !== 1) {
|
|
str += prop + "-opacity: " + opacity.toString() + "; ";
|
|
}
|
|
return str;
|
|
}
|
|
}
|
|
fabric.util.object.extend(fabric.Object.prototype, {
|
|
getSvgStyles: function(skipShadow) {
|
|
var fillRule = this.fillRule, strokeWidth = this.strokeWidth ? this.strokeWidth : "0", strokeDashArray = this.strokeDashArray ? this.strokeDashArray.join(" ") : "none", strokeLineCap = this.strokeLineCap ? this.strokeLineCap : "butt", strokeLineJoin = this.strokeLineJoin ? this.strokeLineJoin : "miter", strokeMiterLimit = this.strokeMiterLimit ? this.strokeMiterLimit : "4", opacity = typeof this.opacity !== "undefined" ? this.opacity : "1", visibility = this.visible ? "" : " visibility: hidden;", filter = skipShadow ? "" : this.getSvgFilter(), fill = getSvgColorString("fill", this.fill), stroke = getSvgColorString("stroke", this.stroke);
|
|
return [ stroke, "stroke-width: ", strokeWidth, "; ", "stroke-dasharray: ", strokeDashArray, "; ", "stroke-linecap: ", strokeLineCap, "; ", "stroke-linejoin: ", strokeLineJoin, "; ", "stroke-miterlimit: ", strokeMiterLimit, "; ", fill, "fill-rule: ", fillRule, "; ", "opacity: ", opacity, ";", filter, visibility ].join("");
|
|
},
|
|
getSvgFilter: function() {
|
|
return this.shadow ? "filter: url(#SVGID_" + this.shadow.id + ");" : "";
|
|
},
|
|
getSvgId: function() {
|
|
return this.id ? 'id="' + this.id + '" ' : "";
|
|
},
|
|
getSvgTransform: function() {
|
|
if (this.group && this.group.type === "path-group") {
|
|
return "";
|
|
}
|
|
var toFixed = fabric.util.toFixed, angle = this.getAngle(), skewX = this.getSkewX() % 360, skewY = this.getSkewY() % 360, center = this.getCenterPoint(), NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS, translatePart = this.type === "path-group" ? "" : "translate(" + toFixed(center.x, NUM_FRACTION_DIGITS) + " " + toFixed(center.y, NUM_FRACTION_DIGITS) + ")", anglePart = angle !== 0 ? " rotate(" + toFixed(angle, NUM_FRACTION_DIGITS) + ")" : "", scalePart = this.scaleX === 1 && this.scaleY === 1 ? "" : " scale(" + toFixed(this.scaleX, NUM_FRACTION_DIGITS) + " " + toFixed(this.scaleY, NUM_FRACTION_DIGITS) + ")", skewXPart = skewX !== 0 ? " skewX(" + toFixed(skewX, NUM_FRACTION_DIGITS) + ")" : "", skewYPart = skewY !== 0 ? " skewY(" + toFixed(skewY, NUM_FRACTION_DIGITS) + ")" : "", addTranslateX = this.type === "path-group" ? this.width : 0, flipXPart = this.flipX ? " matrix(-1 0 0 1 " + addTranslateX + " 0) " : "", addTranslateY = this.type === "path-group" ? this.height : 0, flipYPart = this.flipY ? " matrix(1 0 0 -1 0 " + addTranslateY + ")" : "";
|
|
return [ translatePart, anglePart, scalePart, flipXPart, flipYPart, skewXPart, skewYPart ].join("");
|
|
},
|
|
getSvgTransformMatrix: function() {
|
|
return this.transformMatrix ? " matrix(" + this.transformMatrix.join(" ") + ") " : "";
|
|
},
|
|
_createBaseSVGMarkup: function() {
|
|
var markup = [];
|
|
if (this.fill && this.fill.toLive) {
|
|
markup.push(this.fill.toSVG(this, false));
|
|
}
|
|
if (this.stroke && this.stroke.toLive) {
|
|
markup.push(this.stroke.toSVG(this, false));
|
|
}
|
|
if (this.shadow) {
|
|
markup.push(this.shadow.toSVG(this));
|
|
}
|
|
return markup;
|
|
}
|
|
});
|
|
})();
|
|
|
|
fabric.util.object.extend(fabric.Object.prototype, {
|
|
hasStateChanged: function() {
|
|
return this.stateProperties.some(function(prop) {
|
|
return this.get(prop) !== this.originalState[prop];
|
|
}, this);
|
|
},
|
|
saveState: function(options) {
|
|
this.stateProperties.forEach(function(prop) {
|
|
this.originalState[prop] = this.get(prop);
|
|
}, this);
|
|
if (options && options.stateProperties) {
|
|
options.stateProperties.forEach(function(prop) {
|
|
this.originalState[prop] = this.get(prop);
|
|
}, this);
|
|
}
|
|
return this;
|
|
},
|
|
setupState: function() {
|
|
this.originalState = {};
|
|
this.saveState();
|
|
return this;
|
|
}
|
|
});
|
|
|
|
(function() {
|
|
var degreesToRadians = fabric.util.degreesToRadians, isVML = function() {
|
|
return typeof G_vmlCanvasManager !== "undefined";
|
|
};
|
|
fabric.util.object.extend(fabric.Object.prototype, {
|
|
_controlsVisibility: null,
|
|
_findTargetCorner: function(pointer) {
|
|
if (!this.hasControls || !this.active) {
|
|
return false;
|
|
}
|
|
var ex = pointer.x, ey = pointer.y, xPoints, lines;
|
|
this.__corner = 0;
|
|
for (var i in this.oCoords) {
|
|
if (!this.isControlVisible(i)) {
|
|
continue;
|
|
}
|
|
if (i === "mtr" && !this.hasRotatingPoint) {
|
|
continue;
|
|
}
|
|
if (this.get("lockUniScaling") && (i === "mt" || i === "mr" || i === "mb" || i === "ml")) {
|
|
continue;
|
|
}
|
|
lines = this._getImageLines(this.oCoords[i].corner);
|
|
xPoints = this._findCrossPoints({
|
|
x: ex,
|
|
y: ey
|
|
}, lines);
|
|
if (xPoints !== 0 && xPoints % 2 === 1) {
|
|
this.__corner = i;
|
|
return i;
|
|
}
|
|
}
|
|
return false;
|
|
},
|
|
_setCornerCoords: function() {
|
|
var coords = this.oCoords, newTheta = degreesToRadians(45 - this.angle), cornerHypotenuse = this.cornerSize * .707106, cosHalfOffset = cornerHypotenuse * Math.cos(newTheta), sinHalfOffset = cornerHypotenuse * Math.sin(newTheta), x, y;
|
|
for (var point in coords) {
|
|
x = coords[point].x;
|
|
y = coords[point].y;
|
|
coords[point].corner = {
|
|
tl: {
|
|
x: x - sinHalfOffset,
|
|
y: y - cosHalfOffset
|
|
},
|
|
tr: {
|
|
x: x + cosHalfOffset,
|
|
y: y - sinHalfOffset
|
|
},
|
|
bl: {
|
|
x: x - cosHalfOffset,
|
|
y: y + sinHalfOffset
|
|
},
|
|
br: {
|
|
x: x + sinHalfOffset,
|
|
y: y + cosHalfOffset
|
|
}
|
|
};
|
|
}
|
|
},
|
|
_getNonTransformedDimensions: function() {
|
|
var strokeWidth = this.strokeWidth, w = this.width, h = this.height, addStrokeToW = true, addStrokeToH = true;
|
|
if (this.type === "line" && this.strokeLineCap === "butt") {
|
|
addStrokeToH = w;
|
|
addStrokeToW = h;
|
|
}
|
|
if (addStrokeToH) {
|
|
h += h < 0 ? -strokeWidth : strokeWidth;
|
|
}
|
|
if (addStrokeToW) {
|
|
w += w < 0 ? -strokeWidth : strokeWidth;
|
|
}
|
|
return {
|
|
x: w,
|
|
y: h
|
|
};
|
|
},
|
|
_getTransformedDimensions: function(skewX, skewY) {
|
|
if (typeof skewX === "undefined") {
|
|
skewX = this.skewX;
|
|
}
|
|
if (typeof skewY === "undefined") {
|
|
skewY = this.skewY;
|
|
}
|
|
var dimensions = this._getNonTransformedDimensions(), dimX = dimensions.x / 2, dimY = dimensions.y / 2, points = [ {
|
|
x: -dimX,
|
|
y: -dimY
|
|
}, {
|
|
x: dimX,
|
|
y: -dimY
|
|
}, {
|
|
x: -dimX,
|
|
y: dimY
|
|
}, {
|
|
x: dimX,
|
|
y: dimY
|
|
} ], i, transformMatrix = this._calcDimensionsTransformMatrix(skewX, skewY, false), bbox;
|
|
for (i = 0; i < points.length; i++) {
|
|
points[i] = fabric.util.transformPoint(points[i], transformMatrix);
|
|
}
|
|
bbox = fabric.util.makeBoundingBoxFromPoints(points);
|
|
return {
|
|
x: bbox.width,
|
|
y: bbox.height
|
|
};
|
|
},
|
|
_calculateCurrentDimensions: function() {
|
|
var vpt = this.getViewportTransform(), dim = this._getTransformedDimensions(), w = dim.x, h = dim.y, p = fabric.util.transformPoint(new fabric.Point(w, h), vpt, true);
|
|
return p.scalarAdd(2 * this.padding);
|
|
},
|
|
drawSelectionBackground: function(ctx) {
|
|
if (!this.selectionBackgroundColor || this.group || this !== this.canvas.getActiveObject()) {
|
|
return this;
|
|
}
|
|
ctx.save();
|
|
var center = this.getCenterPoint(), wh = this._calculateCurrentDimensions(), vpt = this.canvas.viewportTransform;
|
|
ctx.translate(center.x, center.y);
|
|
ctx.scale(1 / vpt[0], 1 / vpt[3]);
|
|
ctx.rotate(degreesToRadians(this.angle));
|
|
ctx.fillStyle = this.selectionBackgroundColor;
|
|
ctx.fillRect(-wh.x / 2, -wh.y / 2, wh.x, wh.y);
|
|
ctx.restore();
|
|
return this;
|
|
},
|
|
drawBorders: function(ctx) {
|
|
if (!this.hasBorders) {
|
|
return this;
|
|
}
|
|
var wh = this._calculateCurrentDimensions(), strokeWidth = 1 / this.borderScaleFactor, width = wh.x + strokeWidth, height = wh.y + strokeWidth;
|
|
ctx.save();
|
|
ctx.strokeStyle = this.borderColor;
|
|
this._setLineDash(ctx, this.borderDashArray, null);
|
|
ctx.strokeRect(-width / 2, -height / 2, width, height);
|
|
if (this.hasRotatingPoint && this.isControlVisible("mtr") && !this.get("lockRotation") && this.hasControls) {
|
|
var rotateHeight = -height / 2;
|
|
ctx.beginPath();
|
|
ctx.moveTo(0, rotateHeight);
|
|
ctx.lineTo(0, rotateHeight - this.rotatingPointOffset);
|
|
ctx.closePath();
|
|
ctx.stroke();
|
|
}
|
|
ctx.restore();
|
|
return this;
|
|
},
|
|
drawBordersInGroup: function(ctx, options) {
|
|
if (!this.hasBorders) {
|
|
return this;
|
|
}
|
|
var p = this._getNonTransformedDimensions(), matrix = fabric.util.customTransformMatrix(options.scaleX, options.scaleY, options.skewX), wh = fabric.util.transformPoint(p, matrix), strokeWidth = 1 / this.borderScaleFactor, width = wh.x + strokeWidth + 2 * this.padding, height = wh.y + strokeWidth + 2 * this.padding;
|
|
ctx.save();
|
|
this._setLineDash(ctx, this.borderDashArray, null);
|
|
ctx.strokeStyle = this.borderColor;
|
|
ctx.strokeRect(-width / 2, -height / 2, width, height);
|
|
ctx.restore();
|
|
return this;
|
|
},
|
|
drawControls: function(ctx) {
|
|
if (!this.hasControls) {
|
|
return this;
|
|
}
|
|
var wh = this._calculateCurrentDimensions(), width = wh.x, height = wh.y, scaleOffset = this.cornerSize, left = -(width + scaleOffset) / 2, top = -(height + scaleOffset) / 2, methodName = this.transparentCorners ? "stroke" : "fill";
|
|
ctx.save();
|
|
ctx.strokeStyle = ctx.fillStyle = this.cornerColor;
|
|
if (!this.transparentCorners) {
|
|
ctx.strokeStyle = this.cornerStrokeColor;
|
|
}
|
|
this._setLineDash(ctx, this.cornerDashArray, null);
|
|
this._drawControl("tl", ctx, methodName, left, top);
|
|
this._drawControl("tr", ctx, methodName, left + width, top);
|
|
this._drawControl("bl", ctx, methodName, left, top + height);
|
|
this._drawControl("br", ctx, methodName, left + width, top + height);
|
|
if (!this.get("lockUniScaling")) {
|
|
this._drawControl("mt", ctx, methodName, left + width / 2, top);
|
|
this._drawControl("mb", ctx, methodName, left + width / 2, top + height);
|
|
this._drawControl("mr", ctx, methodName, left + width, top + height / 2);
|
|
this._drawControl("ml", ctx, methodName, left, top + height / 2);
|
|
}
|
|
if (this.hasRotatingPoint) {
|
|
this._drawControl("mtr", ctx, methodName, left + width / 2, top - this.rotatingPointOffset);
|
|
}
|
|
ctx.restore();
|
|
return this;
|
|
},
|
|
_drawControl: function(control, ctx, methodName, left, top) {
|
|
if (!this.isControlVisible(control)) {
|
|
return;
|
|
}
|
|
var size = this.cornerSize, stroke = !this.transparentCorners && this.cornerStrokeColor;
|
|
switch (this.cornerStyle) {
|
|
case "circle":
|
|
ctx.beginPath();
|
|
ctx.arc(left + size / 2, top + size / 2, size / 2, 0, 2 * Math.PI, false);
|
|
ctx[methodName]();
|
|
if (stroke) {
|
|
ctx.stroke();
|
|
}
|
|
break;
|
|
|
|
default:
|
|
isVML() || this.transparentCorners || ctx.clearRect(left, top, size, size);
|
|
ctx[methodName + "Rect"](left, top, size, size);
|
|
if (stroke) {
|
|
ctx.strokeRect(left, top, size, size);
|
|
}
|
|
}
|
|
},
|
|
isControlVisible: function(controlName) {
|
|
return this._getControlsVisibility()[controlName];
|
|
},
|
|
setControlVisible: function(controlName, visible) {
|
|
this._getControlsVisibility()[controlName] = visible;
|
|
return this;
|
|
},
|
|
setControlsVisibility: function(options) {
|
|
options || (options = {});
|
|
for (var p in options) {
|
|
this.setControlVisible(p, options[p]);
|
|
}
|
|
return this;
|
|
},
|
|
_getControlsVisibility: function() {
|
|
if (!this._controlsVisibility) {
|
|
this._controlsVisibility = {
|
|
tl: true,
|
|
tr: true,
|
|
br: true,
|
|
bl: true,
|
|
ml: true,
|
|
mt: true,
|
|
mr: true,
|
|
mb: true,
|
|
mtr: true
|
|
};
|
|
}
|
|
return this._controlsVisibility;
|
|
}
|
|
});
|
|
})();
|
|
|
|
fabric.util.object.extend(fabric.StaticCanvas.prototype, {
|
|
FX_DURATION: 500,
|
|
fxCenterObjectH: function(object, callbacks) {
|
|
callbacks = callbacks || {};
|
|
var empty = function() {}, onComplete = callbacks.onComplete || empty, onChange = callbacks.onChange || empty, _this = this;
|
|
fabric.util.animate({
|
|
startValue: object.get("left"),
|
|
endValue: this.getCenter().left,
|
|
duration: this.FX_DURATION,
|
|
onChange: function(value) {
|
|
object.set("left", value);
|
|
_this.renderAll();
|
|
onChange();
|
|
},
|
|
onComplete: function() {
|
|
object.setCoords();
|
|
onComplete();
|
|
}
|
|
});
|
|
return this;
|
|
},
|
|
fxCenterObjectV: function(object, callbacks) {
|
|
callbacks = callbacks || {};
|
|
var empty = function() {}, onComplete = callbacks.onComplete || empty, onChange = callbacks.onChange || empty, _this = this;
|
|
fabric.util.animate({
|
|
startValue: object.get("top"),
|
|
endValue: this.getCenter().top,
|
|
duration: this.FX_DURATION,
|
|
onChange: function(value) {
|
|
object.set("top", value);
|
|
_this.renderAll();
|
|
onChange();
|
|
},
|
|
onComplete: function() {
|
|
object.setCoords();
|
|
onComplete();
|
|
}
|
|
});
|
|
return this;
|
|
},
|
|
fxRemove: function(object, callbacks) {
|
|
callbacks = callbacks || {};
|
|
var empty = function() {}, onComplete = callbacks.onComplete || empty, onChange = callbacks.onChange || empty, _this = this;
|
|
fabric.util.animate({
|
|
startValue: object.get("opacity"),
|
|
endValue: 0,
|
|
duration: this.FX_DURATION,
|
|
onStart: function() {
|
|
object.set("active", false);
|
|
},
|
|
onChange: function(value) {
|
|
object.set("opacity", value);
|
|
_this.renderAll();
|
|
onChange();
|
|
},
|
|
onComplete: function() {
|
|
_this.remove(object);
|
|
onComplete();
|
|
}
|
|
});
|
|
return this;
|
|
}
|
|
});
|
|
|
|
fabric.util.object.extend(fabric.Object.prototype, {
|
|
animate: function() {
|
|
if (arguments[0] && typeof arguments[0] === "object") {
|
|
var propsToAnimate = [], prop, skipCallbacks;
|
|
for (prop in arguments[0]) {
|
|
propsToAnimate.push(prop);
|
|
}
|
|
for (var i = 0, len = propsToAnimate.length; i < len; i++) {
|
|
prop = propsToAnimate[i];
|
|
skipCallbacks = i !== len - 1;
|
|
this._animate(prop, arguments[0][prop], arguments[1], skipCallbacks);
|
|
}
|
|
} else {
|
|
this._animate.apply(this, arguments);
|
|
}
|
|
return this;
|
|
},
|
|
_animate: function(property, to, options, skipCallbacks) {
|
|
var _this = this, propPair;
|
|
to = to.toString();
|
|
if (!options) {
|
|
options = {};
|
|
} else {
|
|
options = fabric.util.object.clone(options);
|
|
}
|
|
if (~property.indexOf(".")) {
|
|
propPair = property.split(".");
|
|
}
|
|
var currentValue = propPair ? this.get(propPair[0])[propPair[1]] : this.get(property);
|
|
if (!("from" in options)) {
|
|
options.from = currentValue;
|
|
}
|
|
if (~to.indexOf("=")) {
|
|
to = currentValue + parseFloat(to.replace("=", ""));
|
|
} else {
|
|
to = parseFloat(to);
|
|
}
|
|
fabric.util.animate({
|
|
startValue: options.from,
|
|
endValue: to,
|
|
byValue: options.by,
|
|
easing: options.easing,
|
|
duration: options.duration,
|
|
abort: options.abort && function() {
|
|
return options.abort.call(_this);
|
|
},
|
|
onChange: function(value) {
|
|
if (propPair) {
|
|
_this[propPair[0]][propPair[1]] = value;
|
|
} else {
|
|
_this.set(property, value);
|
|
}
|
|
if (skipCallbacks) {
|
|
return;
|
|
}
|
|
options.onChange && options.onChange();
|
|
},
|
|
onComplete: function() {
|
|
if (skipCallbacks) {
|
|
return;
|
|
}
|
|
_this.setCoords();
|
|
options.onComplete && options.onComplete();
|
|
}
|
|
});
|
|
}
|
|
});
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), extend = fabric.util.object.extend, coordProps = {
|
|
x1: 1,
|
|
x2: 1,
|
|
y1: 1,
|
|
y2: 1
|
|
}, supportsLineDash = fabric.StaticCanvas.supports("setLineDash");
|
|
if (fabric.Line) {
|
|
fabric.warn("fabric.Line is already defined");
|
|
return;
|
|
}
|
|
fabric.Line = fabric.util.createClass(fabric.Object, {
|
|
type: "line",
|
|
x1: 0,
|
|
y1: 0,
|
|
x2: 0,
|
|
y2: 0,
|
|
initialize: function(points, options) {
|
|
options = options || {};
|
|
if (!points) {
|
|
points = [ 0, 0, 0, 0 ];
|
|
}
|
|
this.callSuper("initialize", options);
|
|
this.set("x1", points[0]);
|
|
this.set("y1", points[1]);
|
|
this.set("x2", points[2]);
|
|
this.set("y2", points[3]);
|
|
this._setWidthHeight(options);
|
|
},
|
|
_setWidthHeight: function(options) {
|
|
options || (options = {});
|
|
this.width = Math.abs(this.x2 - this.x1);
|
|
this.height = Math.abs(this.y2 - this.y1);
|
|
this.left = "left" in options ? options.left : this._getLeftToOriginX();
|
|
this.top = "top" in options ? options.top : this._getTopToOriginY();
|
|
},
|
|
_set: function(key, value) {
|
|
this.callSuper("_set", key, value);
|
|
if (typeof coordProps[key] !== "undefined") {
|
|
this._setWidthHeight();
|
|
}
|
|
return this;
|
|
},
|
|
_getLeftToOriginX: makeEdgeToOriginGetter({
|
|
origin: "originX",
|
|
axis1: "x1",
|
|
axis2: "x2",
|
|
dimension: "width"
|
|
}, {
|
|
nearest: "left",
|
|
center: "center",
|
|
farthest: "right"
|
|
}),
|
|
_getTopToOriginY: makeEdgeToOriginGetter({
|
|
origin: "originY",
|
|
axis1: "y1",
|
|
axis2: "y2",
|
|
dimension: "height"
|
|
}, {
|
|
nearest: "top",
|
|
center: "center",
|
|
farthest: "bottom"
|
|
}),
|
|
_render: function(ctx, noTransform) {
|
|
ctx.beginPath();
|
|
if (noTransform) {
|
|
var cp = this.getCenterPoint();
|
|
ctx.translate(cp.x - this.strokeWidth / 2, cp.y - this.strokeWidth / 2);
|
|
}
|
|
if (!this.strokeDashArray || this.strokeDashArray && supportsLineDash) {
|
|
var p = this.calcLinePoints();
|
|
ctx.moveTo(p.x1, p.y1);
|
|
ctx.lineTo(p.x2, p.y2);
|
|
}
|
|
ctx.lineWidth = this.strokeWidth;
|
|
var origStrokeStyle = ctx.strokeStyle;
|
|
ctx.strokeStyle = this.stroke || ctx.fillStyle;
|
|
this.stroke && this._renderStroke(ctx);
|
|
ctx.strokeStyle = origStrokeStyle;
|
|
},
|
|
_renderDashedStroke: function(ctx) {
|
|
var p = this.calcLinePoints();
|
|
ctx.beginPath();
|
|
fabric.util.drawDashedLine(ctx, p.x1, p.y1, p.x2, p.y2, this.strokeDashArray);
|
|
ctx.closePath();
|
|
},
|
|
toObject: function(propertiesToInclude) {
|
|
return extend(this.callSuper("toObject", propertiesToInclude), this.calcLinePoints());
|
|
},
|
|
calcLinePoints: function() {
|
|
var xMult = this.x1 <= this.x2 ? -1 : 1, yMult = this.y1 <= this.y2 ? -1 : 1, x1 = xMult * this.width * .5, y1 = yMult * this.height * .5, x2 = xMult * this.width * -.5, y2 = yMult * this.height * -.5;
|
|
return {
|
|
x1: x1,
|
|
x2: x2,
|
|
y1: y1,
|
|
y2: y2
|
|
};
|
|
},
|
|
toSVG: function(reviver) {
|
|
var markup = this._createBaseSVGMarkup(), p = {
|
|
x1: this.x1,
|
|
x2: this.x2,
|
|
y1: this.y1,
|
|
y2: this.y2
|
|
};
|
|
if (!(this.group && this.group.type === "path-group")) {
|
|
p = this.calcLinePoints();
|
|
}
|
|
markup.push("<line ", this.getSvgId(), 'x1="', p.x1, '" y1="', p.y1, '" x2="', p.x2, '" y2="', p.y2, '" style="', this.getSvgStyles(), '" transform="', this.getSvgTransform(), this.getSvgTransformMatrix(), '"/>\n');
|
|
return reviver ? reviver(markup.join("")) : markup.join("");
|
|
},
|
|
complexity: function() {
|
|
return 1;
|
|
}
|
|
});
|
|
fabric.Line.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat("x1 y1 x2 y2".split(" "));
|
|
fabric.Line.fromElement = function(element, options) {
|
|
var parsedAttributes = fabric.parseAttributes(element, fabric.Line.ATTRIBUTE_NAMES), points = [ parsedAttributes.x1 || 0, parsedAttributes.y1 || 0, parsedAttributes.x2 || 0, parsedAttributes.y2 || 0 ];
|
|
return new fabric.Line(points, extend(parsedAttributes, options));
|
|
};
|
|
fabric.Line.fromObject = function(object) {
|
|
var points = [ object.x1, object.y1, object.x2, object.y2 ];
|
|
return new fabric.Line(points, object);
|
|
};
|
|
function makeEdgeToOriginGetter(propertyNames, originValues) {
|
|
var origin = propertyNames.origin, axis1 = propertyNames.axis1, axis2 = propertyNames.axis2, dimension = propertyNames.dimension, nearest = originValues.nearest, center = originValues.center, farthest = originValues.farthest;
|
|
return function() {
|
|
switch (this.get(origin)) {
|
|
case nearest:
|
|
return Math.min(this.get(axis1), this.get(axis2));
|
|
|
|
case center:
|
|
return Math.min(this.get(axis1), this.get(axis2)) + .5 * this.get(dimension);
|
|
|
|
case farthest:
|
|
return Math.max(this.get(axis1), this.get(axis2));
|
|
}
|
|
};
|
|
}
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), pi = Math.PI, extend = fabric.util.object.extend;
|
|
if (fabric.Circle) {
|
|
fabric.warn("fabric.Circle is already defined.");
|
|
return;
|
|
}
|
|
fabric.Circle = fabric.util.createClass(fabric.Object, {
|
|
type: "circle",
|
|
radius: 0,
|
|
startAngle: 0,
|
|
endAngle: pi * 2,
|
|
initialize: function(options) {
|
|
options = options || {};
|
|
this.callSuper("initialize", options);
|
|
this.set("radius", options.radius || 0);
|
|
this.startAngle = options.startAngle || this.startAngle;
|
|
this.endAngle = options.endAngle || this.endAngle;
|
|
},
|
|
_set: function(key, value) {
|
|
this.callSuper("_set", key, value);
|
|
if (key === "radius") {
|
|
this.setRadius(value);
|
|
}
|
|
return this;
|
|
},
|
|
toObject: function(propertiesToInclude) {
|
|
return extend(this.callSuper("toObject", propertiesToInclude), {
|
|
radius: this.get("radius"),
|
|
startAngle: this.startAngle,
|
|
endAngle: this.endAngle
|
|
});
|
|
},
|
|
toSVG: function(reviver) {
|
|
var markup = this._createBaseSVGMarkup(), x = 0, y = 0, angle = (this.endAngle - this.startAngle) % (2 * pi);
|
|
if (angle === 0) {
|
|
if (this.group && this.group.type === "path-group") {
|
|
x = this.left + this.radius;
|
|
y = this.top + this.radius;
|
|
}
|
|
markup.push("<circle ", this.getSvgId(), 'cx="' + x + '" cy="' + y + '" ', 'r="', this.radius, '" style="', this.getSvgStyles(), '" transform="', this.getSvgTransform(), " ", this.getSvgTransformMatrix(), '"/>\n');
|
|
} else {
|
|
var startX = Math.cos(this.startAngle) * this.radius, startY = Math.sin(this.startAngle) * this.radius, endX = Math.cos(this.endAngle) * this.radius, endY = Math.sin(this.endAngle) * this.radius, largeFlag = angle > pi ? "1" : "0";
|
|
markup.push('<path d="M ' + startX + " " + startY, " A " + this.radius + " " + this.radius, " 0 ", +largeFlag + " 1", " " + endX + " " + endY, '" style="', this.getSvgStyles(), '" transform="', this.getSvgTransform(), " ", this.getSvgTransformMatrix(), '"/>\n');
|
|
}
|
|
return reviver ? reviver(markup.join("")) : markup.join("");
|
|
},
|
|
_render: function(ctx, noTransform) {
|
|
ctx.beginPath();
|
|
ctx.arc(noTransform ? this.left + this.radius : 0, noTransform ? this.top + this.radius : 0, this.radius, this.startAngle, this.endAngle, false);
|
|
this._renderFill(ctx);
|
|
this._renderStroke(ctx);
|
|
},
|
|
getRadiusX: function() {
|
|
return this.get("radius") * this.get("scaleX");
|
|
},
|
|
getRadiusY: function() {
|
|
return this.get("radius") * this.get("scaleY");
|
|
},
|
|
setRadius: function(value) {
|
|
this.radius = value;
|
|
return this.set("width", value * 2).set("height", value * 2);
|
|
},
|
|
complexity: function() {
|
|
return 1;
|
|
}
|
|
});
|
|
fabric.Circle.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat("cx cy r".split(" "));
|
|
fabric.Circle.fromElement = function(element, options) {
|
|
options || (options = {});
|
|
var parsedAttributes = fabric.parseAttributes(element, fabric.Circle.ATTRIBUTE_NAMES);
|
|
if (!isValidRadius(parsedAttributes)) {
|
|
throw new Error("value of `r` attribute is required and can not be negative");
|
|
}
|
|
parsedAttributes.left = parsedAttributes.left || 0;
|
|
parsedAttributes.top = parsedAttributes.top || 0;
|
|
var obj = new fabric.Circle(extend(parsedAttributes, options));
|
|
obj.left -= obj.radius;
|
|
obj.top -= obj.radius;
|
|
return obj;
|
|
};
|
|
function isValidRadius(attributes) {
|
|
return "radius" in attributes && attributes.radius >= 0;
|
|
}
|
|
fabric.Circle.fromObject = function(object) {
|
|
return new fabric.Circle(object);
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {});
|
|
if (fabric.Triangle) {
|
|
fabric.warn("fabric.Triangle is already defined");
|
|
return;
|
|
}
|
|
fabric.Triangle = fabric.util.createClass(fabric.Object, {
|
|
type: "triangle",
|
|
initialize: function(options) {
|
|
options = options || {};
|
|
this.callSuper("initialize", options);
|
|
this.set("width", options.width || 100).set("height", options.height || 100);
|
|
},
|
|
_render: function(ctx) {
|
|
var widthBy2 = this.width / 2, heightBy2 = this.height / 2;
|
|
ctx.beginPath();
|
|
ctx.moveTo(-widthBy2, heightBy2);
|
|
ctx.lineTo(0, -heightBy2);
|
|
ctx.lineTo(widthBy2, heightBy2);
|
|
ctx.closePath();
|
|
this._renderFill(ctx);
|
|
this._renderStroke(ctx);
|
|
},
|
|
_renderDashedStroke: function(ctx) {
|
|
var widthBy2 = this.width / 2, heightBy2 = this.height / 2;
|
|
ctx.beginPath();
|
|
fabric.util.drawDashedLine(ctx, -widthBy2, heightBy2, 0, -heightBy2, this.strokeDashArray);
|
|
fabric.util.drawDashedLine(ctx, 0, -heightBy2, widthBy2, heightBy2, this.strokeDashArray);
|
|
fabric.util.drawDashedLine(ctx, widthBy2, heightBy2, -widthBy2, heightBy2, this.strokeDashArray);
|
|
ctx.closePath();
|
|
},
|
|
toSVG: function(reviver) {
|
|
var markup = this._createBaseSVGMarkup(), widthBy2 = this.width / 2, heightBy2 = this.height / 2, points = [ -widthBy2 + " " + heightBy2, "0 " + -heightBy2, widthBy2 + " " + heightBy2 ].join(",");
|
|
markup.push("<polygon ", this.getSvgId(), 'points="', points, '" style="', this.getSvgStyles(), '" transform="', this.getSvgTransform(), '"/>');
|
|
return reviver ? reviver(markup.join("")) : markup.join("");
|
|
},
|
|
complexity: function() {
|
|
return 1;
|
|
}
|
|
});
|
|
fabric.Triangle.fromObject = function(object) {
|
|
return new fabric.Triangle(object);
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), piBy2 = Math.PI * 2, extend = fabric.util.object.extend;
|
|
if (fabric.Ellipse) {
|
|
fabric.warn("fabric.Ellipse is already defined.");
|
|
return;
|
|
}
|
|
fabric.Ellipse = fabric.util.createClass(fabric.Object, {
|
|
type: "ellipse",
|
|
rx: 0,
|
|
ry: 0,
|
|
initialize: function(options) {
|
|
options = options || {};
|
|
this.callSuper("initialize", options);
|
|
this.set("rx", options.rx || 0);
|
|
this.set("ry", options.ry || 0);
|
|
},
|
|
_set: function(key, value) {
|
|
this.callSuper("_set", key, value);
|
|
switch (key) {
|
|
case "rx":
|
|
this.rx = value;
|
|
this.set("width", value * 2);
|
|
break;
|
|
|
|
case "ry":
|
|
this.ry = value;
|
|
this.set("height", value * 2);
|
|
break;
|
|
}
|
|
return this;
|
|
},
|
|
getRx: function() {
|
|
return this.get("rx") * this.get("scaleX");
|
|
},
|
|
getRy: function() {
|
|
return this.get("ry") * this.get("scaleY");
|
|
},
|
|
toObject: function(propertiesToInclude) {
|
|
return extend(this.callSuper("toObject", propertiesToInclude), {
|
|
rx: this.get("rx"),
|
|
ry: this.get("ry")
|
|
});
|
|
},
|
|
toSVG: function(reviver) {
|
|
var markup = this._createBaseSVGMarkup(), x = 0, y = 0;
|
|
if (this.group && this.group.type === "path-group") {
|
|
x = this.left + this.rx;
|
|
y = this.top + this.ry;
|
|
}
|
|
markup.push("<ellipse ", this.getSvgId(), 'cx="', x, '" cy="', y, '" ', 'rx="', this.rx, '" ry="', this.ry, '" style="', this.getSvgStyles(), '" transform="', this.getSvgTransform(), this.getSvgTransformMatrix(), '"/>\n');
|
|
return reviver ? reviver(markup.join("")) : markup.join("");
|
|
},
|
|
_render: function(ctx, noTransform) {
|
|
ctx.beginPath();
|
|
ctx.save();
|
|
ctx.transform(1, 0, 0, this.ry / this.rx, 0, 0);
|
|
ctx.arc(noTransform ? this.left + this.rx : 0, noTransform ? (this.top + this.ry) * this.rx / this.ry : 0, this.rx, 0, piBy2, false);
|
|
ctx.restore();
|
|
this._renderFill(ctx);
|
|
this._renderStroke(ctx);
|
|
},
|
|
complexity: function() {
|
|
return 1;
|
|
}
|
|
});
|
|
fabric.Ellipse.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat("cx cy rx ry".split(" "));
|
|
fabric.Ellipse.fromElement = function(element, options) {
|
|
options || (options = {});
|
|
var parsedAttributes = fabric.parseAttributes(element, fabric.Ellipse.ATTRIBUTE_NAMES);
|
|
parsedAttributes.left = parsedAttributes.left || 0;
|
|
parsedAttributes.top = parsedAttributes.top || 0;
|
|
var ellipse = new fabric.Ellipse(extend(parsedAttributes, options));
|
|
ellipse.top -= ellipse.ry;
|
|
ellipse.left -= ellipse.rx;
|
|
return ellipse;
|
|
};
|
|
fabric.Ellipse.fromObject = function(object) {
|
|
return new fabric.Ellipse(object);
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), extend = fabric.util.object.extend;
|
|
if (fabric.Rect) {
|
|
fabric.warn("fabric.Rect is already defined");
|
|
return;
|
|
}
|
|
var stateProperties = fabric.Object.prototype.stateProperties.concat();
|
|
stateProperties.push("rx", "ry", "x", "y");
|
|
fabric.Rect = fabric.util.createClass(fabric.Object, {
|
|
stateProperties: stateProperties,
|
|
type: "rect",
|
|
rx: 0,
|
|
ry: 0,
|
|
strokeDashArray: null,
|
|
initialize: function(options) {
|
|
options = options || {};
|
|
this.callSuper("initialize", options);
|
|
this._initRxRy();
|
|
},
|
|
_initRxRy: function() {
|
|
if (this.rx && !this.ry) {
|
|
this.ry = this.rx;
|
|
} else if (this.ry && !this.rx) {
|
|
this.rx = this.ry;
|
|
}
|
|
},
|
|
_render: function(ctx, noTransform) {
|
|
if (this.width === 1 && this.height === 1) {
|
|
ctx.fillRect(-.5, -.5, 1, 1);
|
|
return;
|
|
}
|
|
var rx = this.rx ? Math.min(this.rx, this.width / 2) : 0, ry = this.ry ? Math.min(this.ry, this.height / 2) : 0, w = this.width, h = this.height, x = noTransform ? this.left : -this.width / 2, y = noTransform ? this.top : -this.height / 2, isRounded = rx !== 0 || ry !== 0, k = 1 - .5522847498;
|
|
ctx.beginPath();
|
|
ctx.moveTo(x + rx, y);
|
|
ctx.lineTo(x + w - rx, y);
|
|
isRounded && ctx.bezierCurveTo(x + w - k * rx, y, x + w, y + k * ry, x + w, y + ry);
|
|
ctx.lineTo(x + w, y + h - ry);
|
|
isRounded && ctx.bezierCurveTo(x + w, y + h - k * ry, x + w - k * rx, y + h, x + w - rx, y + h);
|
|
ctx.lineTo(x + rx, y + h);
|
|
isRounded && ctx.bezierCurveTo(x + k * rx, y + h, x, y + h - k * ry, x, y + h - ry);
|
|
ctx.lineTo(x, y + ry);
|
|
isRounded && ctx.bezierCurveTo(x, y + k * ry, x + k * rx, y, x + rx, y);
|
|
ctx.closePath();
|
|
this._renderFill(ctx);
|
|
this._renderStroke(ctx);
|
|
},
|
|
_renderDashedStroke: function(ctx) {
|
|
var x = -this.width / 2, y = -this.height / 2, w = this.width, h = this.height;
|
|
ctx.beginPath();
|
|
fabric.util.drawDashedLine(ctx, x, y, x + w, y, this.strokeDashArray);
|
|
fabric.util.drawDashedLine(ctx, x + w, y, x + w, y + h, this.strokeDashArray);
|
|
fabric.util.drawDashedLine(ctx, x + w, y + h, x, y + h, this.strokeDashArray);
|
|
fabric.util.drawDashedLine(ctx, x, y + h, x, y, this.strokeDashArray);
|
|
ctx.closePath();
|
|
},
|
|
toObject: function(propertiesToInclude) {
|
|
var object = extend(this.callSuper("toObject", propertiesToInclude), {
|
|
rx: this.get("rx") || 0,
|
|
ry: this.get("ry") || 0
|
|
});
|
|
if (!this.includeDefaultValues) {
|
|
this._removeDefaultValues(object);
|
|
}
|
|
return object;
|
|
},
|
|
toSVG: function(reviver) {
|
|
var markup = this._createBaseSVGMarkup(), x = this.left, y = this.top;
|
|
if (!(this.group && this.group.type === "path-group")) {
|
|
x = -this.width / 2;
|
|
y = -this.height / 2;
|
|
}
|
|
markup.push("<rect ", this.getSvgId(), 'x="', x, '" y="', y, '" rx="', this.get("rx"), '" ry="', this.get("ry"), '" width="', this.width, '" height="', this.height, '" style="', this.getSvgStyles(), '" transform="', this.getSvgTransform(), this.getSvgTransformMatrix(), '"/>\n');
|
|
return reviver ? reviver(markup.join("")) : markup.join("");
|
|
},
|
|
complexity: function() {
|
|
return 1;
|
|
}
|
|
});
|
|
fabric.Rect.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat("x y rx ry width height".split(" "));
|
|
fabric.Rect.fromElement = function(element, options) {
|
|
if (!element) {
|
|
return null;
|
|
}
|
|
options = options || {};
|
|
var parsedAttributes = fabric.parseAttributes(element, fabric.Rect.ATTRIBUTE_NAMES);
|
|
parsedAttributes.left = parsedAttributes.left || 0;
|
|
parsedAttributes.top = parsedAttributes.top || 0;
|
|
var rect = new fabric.Rect(extend(options ? fabric.util.object.clone(options) : {}, parsedAttributes));
|
|
rect.visible = rect.visible && rect.width > 0 && rect.height > 0;
|
|
return rect;
|
|
};
|
|
fabric.Rect.fromObject = function(object) {
|
|
return new fabric.Rect(object);
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {});
|
|
if (fabric.Polyline) {
|
|
fabric.warn("fabric.Polyline is already defined");
|
|
return;
|
|
}
|
|
fabric.Polyline = fabric.util.createClass(fabric.Object, {
|
|
type: "polyline",
|
|
points: null,
|
|
minX: 0,
|
|
minY: 0,
|
|
initialize: function(points, options) {
|
|
return fabric.Polygon.prototype.initialize.call(this, points, options);
|
|
},
|
|
_calcDimensions: function() {
|
|
return fabric.Polygon.prototype._calcDimensions.call(this);
|
|
},
|
|
toObject: function(propertiesToInclude) {
|
|
return fabric.Polygon.prototype.toObject.call(this, propertiesToInclude);
|
|
},
|
|
toSVG: function(reviver) {
|
|
return fabric.Polygon.prototype.toSVG.call(this, reviver);
|
|
},
|
|
_render: function(ctx, noTransform) {
|
|
if (!fabric.Polygon.prototype.commonRender.call(this, ctx, noTransform)) {
|
|
return;
|
|
}
|
|
this._renderFill(ctx);
|
|
this._renderStroke(ctx);
|
|
},
|
|
_renderDashedStroke: function(ctx) {
|
|
var p1, p2;
|
|
ctx.beginPath();
|
|
for (var i = 0, len = this.points.length; i < len; i++) {
|
|
p1 = this.points[i];
|
|
p2 = this.points[i + 1] || p1;
|
|
fabric.util.drawDashedLine(ctx, p1.x, p1.y, p2.x, p2.y, this.strokeDashArray);
|
|
}
|
|
},
|
|
complexity: function() {
|
|
return this.get("points").length;
|
|
}
|
|
});
|
|
fabric.Polyline.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat();
|
|
fabric.Polyline.fromElement = function(element, options) {
|
|
if (!element) {
|
|
return null;
|
|
}
|
|
options || (options = {});
|
|
var points = fabric.parsePointsAttribute(element.getAttribute("points")), parsedAttributes = fabric.parseAttributes(element, fabric.Polyline.ATTRIBUTE_NAMES);
|
|
return new fabric.Polyline(points, fabric.util.object.extend(parsedAttributes, options));
|
|
};
|
|
fabric.Polyline.fromObject = function(object) {
|
|
var points = object.points;
|
|
return new fabric.Polyline(points, object, true);
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), extend = fabric.util.object.extend, min = fabric.util.array.min, max = fabric.util.array.max, toFixed = fabric.util.toFixed;
|
|
if (fabric.Polygon) {
|
|
fabric.warn("fabric.Polygon is already defined");
|
|
return;
|
|
}
|
|
fabric.Polygon = fabric.util.createClass(fabric.Object, {
|
|
type: "polygon",
|
|
points: null,
|
|
minX: 0,
|
|
minY: 0,
|
|
initialize: function(points, options) {
|
|
options = options || {};
|
|
this.points = points || [];
|
|
this.callSuper("initialize", options);
|
|
this._calcDimensions();
|
|
if (!("top" in options)) {
|
|
this.top = this.minY;
|
|
}
|
|
if (!("left" in options)) {
|
|
this.left = this.minX;
|
|
}
|
|
this.pathOffset = {
|
|
x: this.minX + this.width / 2,
|
|
y: this.minY + this.height / 2
|
|
};
|
|
},
|
|
_calcDimensions: function() {
|
|
var points = this.points, minX = min(points, "x"), minY = min(points, "y"), maxX = max(points, "x"), maxY = max(points, "y");
|
|
this.width = maxX - minX || 0;
|
|
this.height = maxY - minY || 0;
|
|
this.minX = minX || 0, this.minY = minY || 0;
|
|
},
|
|
toObject: function(propertiesToInclude) {
|
|
return extend(this.callSuper("toObject", propertiesToInclude), {
|
|
points: this.points.concat()
|
|
});
|
|
},
|
|
toSVG: function(reviver) {
|
|
var points = [], addTransform, markup = this._createBaseSVGMarkup();
|
|
for (var i = 0, len = this.points.length; i < len; i++) {
|
|
points.push(toFixed(this.points[i].x, 2), ",", toFixed(this.points[i].y, 2), " ");
|
|
}
|
|
if (!(this.group && this.group.type === "path-group")) {
|
|
addTransform = " translate(" + -this.pathOffset.x + ", " + -this.pathOffset.y + ") ";
|
|
}
|
|
markup.push("<", this.type, " ", this.getSvgId(), 'points="', points.join(""), '" style="', this.getSvgStyles(), '" transform="', this.getSvgTransform(), addTransform, " ", this.getSvgTransformMatrix(), '"/>\n');
|
|
return reviver ? reviver(markup.join("")) : markup.join("");
|
|
},
|
|
_render: function(ctx, noTransform) {
|
|
if (!this.commonRender(ctx, noTransform)) {
|
|
return;
|
|
}
|
|
this._renderFill(ctx);
|
|
if (this.stroke || this.strokeDashArray) {
|
|
ctx.closePath();
|
|
this._renderStroke(ctx);
|
|
}
|
|
},
|
|
commonRender: function(ctx, noTransform) {
|
|
var point, len = this.points.length;
|
|
if (!len || isNaN(this.points[len - 1].y)) {
|
|
return false;
|
|
}
|
|
noTransform || ctx.translate(-this.pathOffset.x, -this.pathOffset.y);
|
|
ctx.beginPath();
|
|
ctx.moveTo(this.points[0].x, this.points[0].y);
|
|
for (var i = 0; i < len; i++) {
|
|
point = this.points[i];
|
|
ctx.lineTo(point.x, point.y);
|
|
}
|
|
return true;
|
|
},
|
|
_renderDashedStroke: function(ctx) {
|
|
fabric.Polyline.prototype._renderDashedStroke.call(this, ctx);
|
|
ctx.closePath();
|
|
},
|
|
complexity: function() {
|
|
return this.points.length;
|
|
}
|
|
});
|
|
fabric.Polygon.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat();
|
|
fabric.Polygon.fromElement = function(element, options) {
|
|
if (!element) {
|
|
return null;
|
|
}
|
|
options || (options = {});
|
|
var points = fabric.parsePointsAttribute(element.getAttribute("points")), parsedAttributes = fabric.parseAttributes(element, fabric.Polygon.ATTRIBUTE_NAMES);
|
|
return new fabric.Polygon(points, extend(parsedAttributes, options));
|
|
};
|
|
fabric.Polygon.fromObject = function(object) {
|
|
return new fabric.Polygon(object.points, object, true);
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), min = fabric.util.array.min, max = fabric.util.array.max, extend = fabric.util.object.extend, _toString = Object.prototype.toString, drawArc = fabric.util.drawArc, commandLengths = {
|
|
m: 2,
|
|
l: 2,
|
|
h: 1,
|
|
v: 1,
|
|
c: 6,
|
|
s: 4,
|
|
q: 4,
|
|
t: 2,
|
|
a: 7
|
|
}, repeatedCommands = {
|
|
m: "l",
|
|
M: "L"
|
|
};
|
|
if (fabric.Path) {
|
|
fabric.warn("fabric.Path is already defined");
|
|
return;
|
|
}
|
|
fabric.Path = fabric.util.createClass(fabric.Object, {
|
|
type: "path",
|
|
path: null,
|
|
minX: 0,
|
|
minY: 0,
|
|
initialize: function(path, options) {
|
|
options = options || {};
|
|
this.setOptions(options);
|
|
if (!path) {
|
|
path = [];
|
|
}
|
|
var fromArray = _toString.call(path) === "[object Array]";
|
|
this.path = fromArray ? path : path.match && path.match(/[mzlhvcsqta][^mzlhvcsqta]*/gi);
|
|
if (!this.path) {
|
|
return;
|
|
}
|
|
if (!fromArray) {
|
|
this.path = this._parsePath();
|
|
}
|
|
this._setPositionDimensions(options);
|
|
if (options.sourcePath) {
|
|
this.setSourcePath(options.sourcePath);
|
|
}
|
|
},
|
|
_setPositionDimensions: function(options) {
|
|
var calcDim = this._parseDimensions();
|
|
this.minX = calcDim.left;
|
|
this.minY = calcDim.top;
|
|
this.width = calcDim.width;
|
|
this.height = calcDim.height;
|
|
if (typeof options.left === "undefined") {
|
|
this.left = calcDim.left + (this.originX === "center" ? this.width / 2 : this.originX === "right" ? this.width : 0);
|
|
}
|
|
if (typeof options.top === "undefined") {
|
|
this.top = calcDim.top + (this.originY === "center" ? this.height / 2 : this.originY === "bottom" ? this.height : 0);
|
|
}
|
|
this.pathOffset = this.pathOffset || {
|
|
x: this.minX + this.width / 2,
|
|
y: this.minY + this.height / 2
|
|
};
|
|
},
|
|
_renderPathCommands: function(ctx) {
|
|
var current, previous = null, subpathStartX = 0, subpathStartY = 0, x = 0, y = 0, controlX = 0, controlY = 0, tempX, tempY, l = -this.pathOffset.x, t = -this.pathOffset.y;
|
|
if (this.group && this.group.type === "path-group") {
|
|
l = 0;
|
|
t = 0;
|
|
}
|
|
ctx.beginPath();
|
|
for (var i = 0, len = this.path.length; i < len; ++i) {
|
|
current = this.path[i];
|
|
switch (current[0]) {
|
|
case "l":
|
|
x += current[1];
|
|
y += current[2];
|
|
ctx.lineTo(x + l, y + t);
|
|
break;
|
|
|
|
case "L":
|
|
x = current[1];
|
|
y = current[2];
|
|
ctx.lineTo(x + l, y + t);
|
|
break;
|
|
|
|
case "h":
|
|
x += current[1];
|
|
ctx.lineTo(x + l, y + t);
|
|
break;
|
|
|
|
case "H":
|
|
x = current[1];
|
|
ctx.lineTo(x + l, y + t);
|
|
break;
|
|
|
|
case "v":
|
|
y += current[1];
|
|
ctx.lineTo(x + l, y + t);
|
|
break;
|
|
|
|
case "V":
|
|
y = current[1];
|
|
ctx.lineTo(x + l, y + t);
|
|
break;
|
|
|
|
case "m":
|
|
x += current[1];
|
|
y += current[2];
|
|
subpathStartX = x;
|
|
subpathStartY = y;
|
|
ctx.moveTo(x + l, y + t);
|
|
break;
|
|
|
|
case "M":
|
|
x = current[1];
|
|
y = current[2];
|
|
subpathStartX = x;
|
|
subpathStartY = y;
|
|
ctx.moveTo(x + l, y + t);
|
|
break;
|
|
|
|
case "c":
|
|
tempX = x + current[5];
|
|
tempY = y + current[6];
|
|
controlX = x + current[3];
|
|
controlY = y + current[4];
|
|
ctx.bezierCurveTo(x + current[1] + l, y + current[2] + t, controlX + l, controlY + t, tempX + l, tempY + t);
|
|
x = tempX;
|
|
y = tempY;
|
|
break;
|
|
|
|
case "C":
|
|
x = current[5];
|
|
y = current[6];
|
|
controlX = current[3];
|
|
controlY = current[4];
|
|
ctx.bezierCurveTo(current[1] + l, current[2] + t, controlX + l, controlY + t, x + l, y + t);
|
|
break;
|
|
|
|
case "s":
|
|
tempX = x + current[3];
|
|
tempY = y + current[4];
|
|
if (previous[0].match(/[CcSs]/) === null) {
|
|
controlX = x;
|
|
controlY = y;
|
|
} else {
|
|
controlX = 2 * x - controlX;
|
|
controlY = 2 * y - controlY;
|
|
}
|
|
ctx.bezierCurveTo(controlX + l, controlY + t, x + current[1] + l, y + current[2] + t, tempX + l, tempY + t);
|
|
controlX = x + current[1];
|
|
controlY = y + current[2];
|
|
x = tempX;
|
|
y = tempY;
|
|
break;
|
|
|
|
case "S":
|
|
tempX = current[3];
|
|
tempY = current[4];
|
|
if (previous[0].match(/[CcSs]/) === null) {
|
|
controlX = x;
|
|
controlY = y;
|
|
} else {
|
|
controlX = 2 * x - controlX;
|
|
controlY = 2 * y - controlY;
|
|
}
|
|
ctx.bezierCurveTo(controlX + l, controlY + t, current[1] + l, current[2] + t, tempX + l, tempY + t);
|
|
x = tempX;
|
|
y = tempY;
|
|
controlX = current[1];
|
|
controlY = current[2];
|
|
break;
|
|
|
|
case "q":
|
|
tempX = x + current[3];
|
|
tempY = y + current[4];
|
|
controlX = x + current[1];
|
|
controlY = y + current[2];
|
|
ctx.quadraticCurveTo(controlX + l, controlY + t, tempX + l, tempY + t);
|
|
x = tempX;
|
|
y = tempY;
|
|
break;
|
|
|
|
case "Q":
|
|
tempX = current[3];
|
|
tempY = current[4];
|
|
ctx.quadraticCurveTo(current[1] + l, current[2] + t, tempX + l, tempY + t);
|
|
x = tempX;
|
|
y = tempY;
|
|
controlX = current[1];
|
|
controlY = current[2];
|
|
break;
|
|
|
|
case "t":
|
|
tempX = x + current[1];
|
|
tempY = y + current[2];
|
|
if (previous[0].match(/[QqTt]/) === null) {
|
|
controlX = x;
|
|
controlY = y;
|
|
} else {
|
|
controlX = 2 * x - controlX;
|
|
controlY = 2 * y - controlY;
|
|
}
|
|
ctx.quadraticCurveTo(controlX + l, controlY + t, tempX + l, tempY + t);
|
|
x = tempX;
|
|
y = tempY;
|
|
break;
|
|
|
|
case "T":
|
|
tempX = current[1];
|
|
tempY = current[2];
|
|
if (previous[0].match(/[QqTt]/) === null) {
|
|
controlX = x;
|
|
controlY = y;
|
|
} else {
|
|
controlX = 2 * x - controlX;
|
|
controlY = 2 * y - controlY;
|
|
}
|
|
ctx.quadraticCurveTo(controlX + l, controlY + t, tempX + l, tempY + t);
|
|
x = tempX;
|
|
y = tempY;
|
|
break;
|
|
|
|
case "a":
|
|
drawArc(ctx, x + l, y + t, [ current[1], current[2], current[3], current[4], current[5], current[6] + x + l, current[7] + y + t ]);
|
|
x += current[6];
|
|
y += current[7];
|
|
break;
|
|
|
|
case "A":
|
|
drawArc(ctx, x + l, y + t, [ current[1], current[2], current[3], current[4], current[5], current[6] + l, current[7] + t ]);
|
|
x = current[6];
|
|
y = current[7];
|
|
break;
|
|
|
|
case "z":
|
|
case "Z":
|
|
x = subpathStartX;
|
|
y = subpathStartY;
|
|
ctx.closePath();
|
|
break;
|
|
}
|
|
previous = current;
|
|
}
|
|
},
|
|
_render: function(ctx) {
|
|
this._renderPathCommands(ctx);
|
|
this._renderFill(ctx);
|
|
this._renderStroke(ctx);
|
|
},
|
|
toString: function() {
|
|
return "#<fabric.Path (" + this.complexity() + '): { "top": ' + this.top + ', "left": ' + this.left + " }>";
|
|
},
|
|
toObject: function(propertiesToInclude) {
|
|
var o = extend(this.callSuper("toObject", propertiesToInclude), {
|
|
path: this.path.map(function(item) {
|
|
return item.slice();
|
|
}),
|
|
pathOffset: this.pathOffset
|
|
});
|
|
if (this.sourcePath) {
|
|
o.sourcePath = this.sourcePath;
|
|
}
|
|
if (this.transformMatrix) {
|
|
o.transformMatrix = this.transformMatrix;
|
|
}
|
|
return o;
|
|
},
|
|
toDatalessObject: function(propertiesToInclude) {
|
|
var o = this.toObject(propertiesToInclude);
|
|
if (this.sourcePath) {
|
|
o.path = this.sourcePath;
|
|
}
|
|
delete o.sourcePath;
|
|
return o;
|
|
},
|
|
toSVG: function(reviver) {
|
|
var chunks = [], markup = this._createBaseSVGMarkup(), addTransform = "";
|
|
for (var i = 0, len = this.path.length; i < len; i++) {
|
|
chunks.push(this.path[i].join(" "));
|
|
}
|
|
var path = chunks.join(" ");
|
|
if (!(this.group && this.group.type === "path-group")) {
|
|
addTransform = " translate(" + -this.pathOffset.x + ", " + -this.pathOffset.y + ") ";
|
|
}
|
|
markup.push("<path ", this.getSvgId(), 'd="', path, '" style="', this.getSvgStyles(), '" transform="', this.getSvgTransform(), addTransform, this.getSvgTransformMatrix(), '" stroke-linecap="round" ', "/>\n");
|
|
return reviver ? reviver(markup.join("")) : markup.join("");
|
|
},
|
|
complexity: function() {
|
|
return this.path.length;
|
|
},
|
|
_parsePath: function() {
|
|
var result = [], coords = [], currentPath, parsed, re = /([-+]?((\d+\.\d+)|((\d+)|(\.\d+)))(?:e[-+]?\d+)?)/gi, match, coordsStr;
|
|
for (var i = 0, coordsParsed, len = this.path.length; i < len; i++) {
|
|
currentPath = this.path[i];
|
|
coordsStr = currentPath.slice(1).trim();
|
|
coords.length = 0;
|
|
while (match = re.exec(coordsStr)) {
|
|
coords.push(match[0]);
|
|
}
|
|
coordsParsed = [ currentPath.charAt(0) ];
|
|
for (var j = 0, jlen = coords.length; j < jlen; j++) {
|
|
parsed = parseFloat(coords[j]);
|
|
if (!isNaN(parsed)) {
|
|
coordsParsed.push(parsed);
|
|
}
|
|
}
|
|
var command = coordsParsed[0], commandLength = commandLengths[command.toLowerCase()], repeatedCommand = repeatedCommands[command] || command;
|
|
if (coordsParsed.length - 1 > commandLength) {
|
|
for (var k = 1, klen = coordsParsed.length; k < klen; k += commandLength) {
|
|
result.push([ command ].concat(coordsParsed.slice(k, k + commandLength)));
|
|
command = repeatedCommand;
|
|
}
|
|
} else {
|
|
result.push(coordsParsed);
|
|
}
|
|
}
|
|
return result;
|
|
},
|
|
_parseDimensions: function() {
|
|
var aX = [], aY = [], current, previous = null, subpathStartX = 0, subpathStartY = 0, x = 0, y = 0, controlX = 0, controlY = 0, tempX, tempY, bounds;
|
|
for (var i = 0, len = this.path.length; i < len; ++i) {
|
|
current = this.path[i];
|
|
switch (current[0]) {
|
|
case "l":
|
|
x += current[1];
|
|
y += current[2];
|
|
bounds = [];
|
|
break;
|
|
|
|
case "L":
|
|
x = current[1];
|
|
y = current[2];
|
|
bounds = [];
|
|
break;
|
|
|
|
case "h":
|
|
x += current[1];
|
|
bounds = [];
|
|
break;
|
|
|
|
case "H":
|
|
x = current[1];
|
|
bounds = [];
|
|
break;
|
|
|
|
case "v":
|
|
y += current[1];
|
|
bounds = [];
|
|
break;
|
|
|
|
case "V":
|
|
y = current[1];
|
|
bounds = [];
|
|
break;
|
|
|
|
case "m":
|
|
x += current[1];
|
|
y += current[2];
|
|
subpathStartX = x;
|
|
subpathStartY = y;
|
|
bounds = [];
|
|
break;
|
|
|
|
case "M":
|
|
x = current[1];
|
|
y = current[2];
|
|
subpathStartX = x;
|
|
subpathStartY = y;
|
|
bounds = [];
|
|
break;
|
|
|
|
case "c":
|
|
tempX = x + current[5];
|
|
tempY = y + current[6];
|
|
controlX = x + current[3];
|
|
controlY = y + current[4];
|
|
bounds = fabric.util.getBoundsOfCurve(x, y, x + current[1], y + current[2], controlX, controlY, tempX, tempY);
|
|
x = tempX;
|
|
y = tempY;
|
|
break;
|
|
|
|
case "C":
|
|
x = current[5];
|
|
y = current[6];
|
|
controlX = current[3];
|
|
controlY = current[4];
|
|
bounds = fabric.util.getBoundsOfCurve(x, y, current[1], current[2], controlX, controlY, x, y);
|
|
break;
|
|
|
|
case "s":
|
|
tempX = x + current[3];
|
|
tempY = y + current[4];
|
|
if (previous[0].match(/[CcSs]/) === null) {
|
|
controlX = x;
|
|
controlY = y;
|
|
} else {
|
|
controlX = 2 * x - controlX;
|
|
controlY = 2 * y - controlY;
|
|
}
|
|
bounds = fabric.util.getBoundsOfCurve(x, y, controlX, controlY, x + current[1], y + current[2], tempX, tempY);
|
|
controlX = x + current[1];
|
|
controlY = y + current[2];
|
|
x = tempX;
|
|
y = tempY;
|
|
break;
|
|
|
|
case "S":
|
|
tempX = current[3];
|
|
tempY = current[4];
|
|
if (previous[0].match(/[CcSs]/) === null) {
|
|
controlX = x;
|
|
controlY = y;
|
|
} else {
|
|
controlX = 2 * x - controlX;
|
|
controlY = 2 * y - controlY;
|
|
}
|
|
bounds = fabric.util.getBoundsOfCurve(x, y, controlX, controlY, current[1], current[2], tempX, tempY);
|
|
x = tempX;
|
|
y = tempY;
|
|
controlX = current[1];
|
|
controlY = current[2];
|
|
break;
|
|
|
|
case "q":
|
|
tempX = x + current[3];
|
|
tempY = y + current[4];
|
|
controlX = x + current[1];
|
|
controlY = y + current[2];
|
|
bounds = fabric.util.getBoundsOfCurve(x, y, controlX, controlY, controlX, controlY, tempX, tempY);
|
|
x = tempX;
|
|
y = tempY;
|
|
break;
|
|
|
|
case "Q":
|
|
controlX = current[1];
|
|
controlY = current[2];
|
|
bounds = fabric.util.getBoundsOfCurve(x, y, controlX, controlY, controlX, controlY, current[3], current[4]);
|
|
x = current[3];
|
|
y = current[4];
|
|
break;
|
|
|
|
case "t":
|
|
tempX = x + current[1];
|
|
tempY = y + current[2];
|
|
if (previous[0].match(/[QqTt]/) === null) {
|
|
controlX = x;
|
|
controlY = y;
|
|
} else {
|
|
controlX = 2 * x - controlX;
|
|
controlY = 2 * y - controlY;
|
|
}
|
|
bounds = fabric.util.getBoundsOfCurve(x, y, controlX, controlY, controlX, controlY, tempX, tempY);
|
|
x = tempX;
|
|
y = tempY;
|
|
break;
|
|
|
|
case "T":
|
|
tempX = current[1];
|
|
tempY = current[2];
|
|
if (previous[0].match(/[QqTt]/) === null) {
|
|
controlX = x;
|
|
controlY = y;
|
|
} else {
|
|
controlX = 2 * x - controlX;
|
|
controlY = 2 * y - controlY;
|
|
}
|
|
bounds = fabric.util.getBoundsOfCurve(x, y, controlX, controlY, controlX, controlY, tempX, tempY);
|
|
x = tempX;
|
|
y = tempY;
|
|
break;
|
|
|
|
case "a":
|
|
bounds = fabric.util.getBoundsOfArc(x, y, current[1], current[2], current[3], current[4], current[5], current[6] + x, current[7] + y);
|
|
x += current[6];
|
|
y += current[7];
|
|
break;
|
|
|
|
case "A":
|
|
bounds = fabric.util.getBoundsOfArc(x, y, current[1], current[2], current[3], current[4], current[5], current[6], current[7]);
|
|
x = current[6];
|
|
y = current[7];
|
|
break;
|
|
|
|
case "z":
|
|
case "Z":
|
|
x = subpathStartX;
|
|
y = subpathStartY;
|
|
break;
|
|
}
|
|
previous = current;
|
|
bounds.forEach(function(point) {
|
|
aX.push(point.x);
|
|
aY.push(point.y);
|
|
});
|
|
aX.push(x);
|
|
aY.push(y);
|
|
}
|
|
var minX = min(aX) || 0, minY = min(aY) || 0, maxX = max(aX) || 0, maxY = max(aY) || 0, deltaX = maxX - minX, deltaY = maxY - minY, o = {
|
|
left: minX,
|
|
top: minY,
|
|
width: deltaX,
|
|
height: deltaY
|
|
};
|
|
return o;
|
|
}
|
|
});
|
|
fabric.Path.fromObject = function(object, callback) {
|
|
if (typeof object.path === "string") {
|
|
fabric.loadSVGFromURL(object.path, function(elements) {
|
|
var path = elements[0], pathUrl = object.path;
|
|
delete object.path;
|
|
fabric.util.object.extend(path, object);
|
|
path.setSourcePath(pathUrl);
|
|
callback(path);
|
|
});
|
|
} else {
|
|
callback(new fabric.Path(object.path, object));
|
|
}
|
|
};
|
|
fabric.Path.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat([ "d" ]);
|
|
fabric.Path.fromElement = function(element, callback, options) {
|
|
var parsedAttributes = fabric.parseAttributes(element, fabric.Path.ATTRIBUTE_NAMES);
|
|
callback && callback(new fabric.Path(parsedAttributes.d, extend(parsedAttributes, options)));
|
|
};
|
|
fabric.Path.async = true;
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), extend = fabric.util.object.extend, invoke = fabric.util.array.invoke, parentToObject = fabric.Object.prototype.toObject;
|
|
if (fabric.PathGroup) {
|
|
fabric.warn("fabric.PathGroup is already defined");
|
|
return;
|
|
}
|
|
fabric.PathGroup = fabric.util.createClass(fabric.Path, {
|
|
type: "path-group",
|
|
fill: "",
|
|
initialize: function(paths, options) {
|
|
options = options || {};
|
|
this.paths = paths || [];
|
|
for (var i = this.paths.length; i--; ) {
|
|
this.paths[i].group = this;
|
|
}
|
|
if (options.toBeParsed) {
|
|
this.parseDimensionsFromPaths(options);
|
|
delete options.toBeParsed;
|
|
}
|
|
this.setOptions(options);
|
|
this.setCoords();
|
|
if (options.sourcePath) {
|
|
this.setSourcePath(options.sourcePath);
|
|
}
|
|
},
|
|
parseDimensionsFromPaths: function(options) {
|
|
var points, p, xC = [], yC = [], path, height, width, m;
|
|
for (var j = this.paths.length; j--; ) {
|
|
path = this.paths[j];
|
|
height = path.height + path.strokeWidth;
|
|
width = path.width + path.strokeWidth;
|
|
points = [ {
|
|
x: path.left,
|
|
y: path.top
|
|
}, {
|
|
x: path.left + width,
|
|
y: path.top
|
|
}, {
|
|
x: path.left,
|
|
y: path.top + height
|
|
}, {
|
|
x: path.left + width,
|
|
y: path.top + height
|
|
} ];
|
|
m = this.paths[j].transformMatrix;
|
|
for (var i = 0; i < points.length; i++) {
|
|
p = points[i];
|
|
if (m) {
|
|
p = fabric.util.transformPoint(p, m, false);
|
|
}
|
|
xC.push(p.x);
|
|
yC.push(p.y);
|
|
}
|
|
}
|
|
options.width = Math.max.apply(null, xC);
|
|
options.height = Math.max.apply(null, yC);
|
|
},
|
|
render: function(ctx) {
|
|
if (!this.visible) {
|
|
return;
|
|
}
|
|
ctx.save();
|
|
if (this.transformMatrix) {
|
|
ctx.transform.apply(ctx, this.transformMatrix);
|
|
}
|
|
this.transform(ctx);
|
|
this._setShadow(ctx);
|
|
this.clipTo && fabric.util.clipContext(this, ctx);
|
|
ctx.translate(-this.width / 2, -this.height / 2);
|
|
for (var i = 0, l = this.paths.length; i < l; ++i) {
|
|
this.paths[i].render(ctx, true);
|
|
}
|
|
this.clipTo && ctx.restore();
|
|
ctx.restore();
|
|
},
|
|
_set: function(prop, value) {
|
|
if (prop === "fill" && value && this.isSameColor()) {
|
|
var i = this.paths.length;
|
|
while (i--) {
|
|
this.paths[i]._set(prop, value);
|
|
}
|
|
}
|
|
return this.callSuper("_set", prop, value);
|
|
},
|
|
toObject: function(propertiesToInclude) {
|
|
var o = extend(parentToObject.call(this, propertiesToInclude), {
|
|
paths: invoke(this.getObjects(), "toObject", propertiesToInclude)
|
|
});
|
|
if (this.sourcePath) {
|
|
o.sourcePath = this.sourcePath;
|
|
}
|
|
return o;
|
|
},
|
|
toDatalessObject: function(propertiesToInclude) {
|
|
var o = this.toObject(propertiesToInclude);
|
|
if (this.sourcePath) {
|
|
o.paths = this.sourcePath;
|
|
}
|
|
return o;
|
|
},
|
|
toSVG: function(reviver) {
|
|
var objects = this.getObjects(), p = this.getPointByOrigin("left", "top"), translatePart = "translate(" + p.x + " " + p.y + ")", markup = this._createBaseSVGMarkup();
|
|
markup.push("<g ", this.getSvgId(), 'style="', this.getSvgStyles(), '" ', 'transform="', this.getSvgTransformMatrix(), translatePart, this.getSvgTransform(), '" ', ">\n");
|
|
for (var i = 0, len = objects.length; i < len; i++) {
|
|
markup.push("\t", objects[i].toSVG(reviver));
|
|
}
|
|
markup.push("</g>\n");
|
|
return reviver ? reviver(markup.join("")) : markup.join("");
|
|
},
|
|
toString: function() {
|
|
return "#<fabric.PathGroup (" + this.complexity() + "): { top: " + this.top + ", left: " + this.left + " }>";
|
|
},
|
|
isSameColor: function() {
|
|
var firstPathFill = this.getObjects()[0].get("fill") || "";
|
|
if (typeof firstPathFill !== "string") {
|
|
return false;
|
|
}
|
|
firstPathFill = firstPathFill.toLowerCase();
|
|
return this.getObjects().every(function(path) {
|
|
var pathFill = path.get("fill") || "";
|
|
return typeof pathFill === "string" && pathFill.toLowerCase() === firstPathFill;
|
|
});
|
|
},
|
|
complexity: function() {
|
|
return this.paths.reduce(function(total, path) {
|
|
return total + (path && path.complexity ? path.complexity() : 0);
|
|
}, 0);
|
|
},
|
|
getObjects: function() {
|
|
return this.paths;
|
|
}
|
|
});
|
|
fabric.PathGroup.fromObject = function(object, callback) {
|
|
if (typeof object.paths === "string") {
|
|
fabric.loadSVGFromURL(object.paths, function(elements) {
|
|
var pathUrl = object.paths;
|
|
delete object.paths;
|
|
var pathGroup = fabric.util.groupSVGElements(elements, object, pathUrl);
|
|
callback(pathGroup);
|
|
});
|
|
} else {
|
|
fabric.util.enlivenObjects(object.paths, function(enlivenedObjects) {
|
|
delete object.paths;
|
|
callback(new fabric.PathGroup(enlivenedObjects, object));
|
|
});
|
|
}
|
|
};
|
|
fabric.PathGroup.async = true;
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), extend = fabric.util.object.extend, min = fabric.util.array.min, max = fabric.util.array.max, invoke = fabric.util.array.invoke;
|
|
if (fabric.Group) {
|
|
return;
|
|
}
|
|
var _lockProperties = {
|
|
lockMovementX: true,
|
|
lockMovementY: true,
|
|
lockRotation: true,
|
|
lockScalingX: true,
|
|
lockScalingY: true,
|
|
lockUniScaling: true
|
|
};
|
|
fabric.Group = fabric.util.createClass(fabric.Object, fabric.Collection, {
|
|
type: "group",
|
|
strokeWidth: 0,
|
|
subTargetCheck: false,
|
|
initialize: function(objects, options, isAlreadyGrouped) {
|
|
options = options || {};
|
|
this._objects = [];
|
|
isAlreadyGrouped && this.callSuper("initialize", options);
|
|
this._objects = objects || [];
|
|
for (var i = this._objects.length; i--; ) {
|
|
this._objects[i].group = this;
|
|
}
|
|
this.originalState = {};
|
|
if (options.originX) {
|
|
this.originX = options.originX;
|
|
}
|
|
if (options.originY) {
|
|
this.originY = options.originY;
|
|
}
|
|
if (isAlreadyGrouped) {
|
|
this._updateObjectsCoords(true);
|
|
} else {
|
|
this._calcBounds();
|
|
this._updateObjectsCoords();
|
|
this.callSuper("initialize", options);
|
|
}
|
|
this.setCoords();
|
|
this.saveCoords();
|
|
},
|
|
_updateObjectsCoords: function(skipCoordsChange) {
|
|
for (var i = this._objects.length; i--; ) {
|
|
this._updateObjectCoords(this._objects[i], skipCoordsChange);
|
|
}
|
|
},
|
|
_updateObjectCoords: function(object, skipCoordsChange) {
|
|
object.__origHasControls = object.hasControls;
|
|
object.hasControls = false;
|
|
if (skipCoordsChange) {
|
|
return;
|
|
}
|
|
var objectLeft = object.getLeft(), objectTop = object.getTop(), center = this.getCenterPoint();
|
|
object.set({
|
|
originalLeft: objectLeft,
|
|
originalTop: objectTop,
|
|
left: objectLeft - center.x,
|
|
top: objectTop - center.y
|
|
});
|
|
object.setCoords();
|
|
},
|
|
toString: function() {
|
|
return "#<fabric.Group: (" + this.complexity() + ")>";
|
|
},
|
|
addWithUpdate: function(object) {
|
|
this._restoreObjectsState();
|
|
fabric.util.resetObjectTransform(this);
|
|
if (object) {
|
|
this._objects.push(object);
|
|
object.group = this;
|
|
object._set("canvas", this.canvas);
|
|
}
|
|
this.forEachObject(this._setObjectActive, this);
|
|
this._calcBounds();
|
|
this._updateObjectsCoords();
|
|
return this;
|
|
},
|
|
_setObjectActive: function(object) {
|
|
object.set("active", true);
|
|
object.group = this;
|
|
},
|
|
removeWithUpdate: function(object) {
|
|
this._restoreObjectsState();
|
|
fabric.util.resetObjectTransform(this);
|
|
this.forEachObject(this._setObjectActive, this);
|
|
this.remove(object);
|
|
this._calcBounds();
|
|
this._updateObjectsCoords();
|
|
return this;
|
|
},
|
|
_onObjectAdded: function(object) {
|
|
object.group = this;
|
|
object._set("canvas", this.canvas);
|
|
},
|
|
_onObjectRemoved: function(object) {
|
|
delete object.group;
|
|
object.set("active", false);
|
|
},
|
|
delegatedProperties: {
|
|
fill: true,
|
|
stroke: true,
|
|
strokeWidth: true,
|
|
fontFamily: true,
|
|
fontWeight: true,
|
|
fontSize: true,
|
|
fontStyle: true,
|
|
lineHeight: true,
|
|
textDecoration: true,
|
|
textAlign: true,
|
|
backgroundColor: true
|
|
},
|
|
_set: function(key, value) {
|
|
var i = this._objects.length;
|
|
if (this.delegatedProperties[key] || key === "canvas") {
|
|
while (i--) {
|
|
this._objects[i].set(key, value);
|
|
}
|
|
} else {
|
|
while (i--) {
|
|
this._objects[i].setOnGroup(key, value);
|
|
}
|
|
}
|
|
this.callSuper("_set", key, value);
|
|
},
|
|
toObject: function(propertiesToInclude) {
|
|
return extend(this.callSuper("toObject", propertiesToInclude), {
|
|
objects: invoke(this._objects, "toObject", propertiesToInclude)
|
|
});
|
|
},
|
|
render: function(ctx) {
|
|
if (!this.visible) {
|
|
return;
|
|
}
|
|
ctx.save();
|
|
if (this.transformMatrix) {
|
|
ctx.transform.apply(ctx, this.transformMatrix);
|
|
}
|
|
this.transform(ctx);
|
|
this._setShadow(ctx);
|
|
this.clipTo && fabric.util.clipContext(this, ctx);
|
|
this._transformDone = true;
|
|
for (var i = 0, len = this._objects.length; i < len; i++) {
|
|
this._renderObject(this._objects[i], ctx);
|
|
}
|
|
this.clipTo && ctx.restore();
|
|
ctx.restore();
|
|
this._transformDone = false;
|
|
},
|
|
_renderControls: function(ctx, noTransform) {
|
|
this.callSuper("_renderControls", ctx, noTransform);
|
|
for (var i = 0, len = this._objects.length; i < len; i++) {
|
|
this._objects[i]._renderControls(ctx);
|
|
}
|
|
},
|
|
_renderObject: function(object, ctx) {
|
|
if (!object.visible) {
|
|
return;
|
|
}
|
|
var originalHasRotatingPoint = object.hasRotatingPoint;
|
|
object.hasRotatingPoint = false;
|
|
object.render(ctx);
|
|
object.hasRotatingPoint = originalHasRotatingPoint;
|
|
},
|
|
_restoreObjectsState: function() {
|
|
this._objects.forEach(this._restoreObjectState, this);
|
|
return this;
|
|
},
|
|
realizeTransform: function(object) {
|
|
var matrix = object.calcTransformMatrix(), options = fabric.util.qrDecompose(matrix), center = new fabric.Point(options.translateX, options.translateY);
|
|
object.scaleX = options.scaleX;
|
|
object.scaleY = options.scaleY;
|
|
object.skewX = options.skewX;
|
|
object.skewY = options.skewY;
|
|
object.angle = options.angle;
|
|
object.flipX = false;
|
|
object.flipY = false;
|
|
object.setPositionByOrigin(center, "center", "center");
|
|
return object;
|
|
},
|
|
_restoreObjectState: function(object) {
|
|
this.realizeTransform(object);
|
|
object.setCoords();
|
|
object.hasControls = object.__origHasControls;
|
|
delete object.__origHasControls;
|
|
object.set("active", false);
|
|
delete object.group;
|
|
return this;
|
|
},
|
|
destroy: function() {
|
|
return this._restoreObjectsState();
|
|
},
|
|
saveCoords: function() {
|
|
this._originalLeft = this.get("left");
|
|
this._originalTop = this.get("top");
|
|
return this;
|
|
},
|
|
hasMoved: function() {
|
|
return this._originalLeft !== this.get("left") || this._originalTop !== this.get("top");
|
|
},
|
|
setObjectsCoords: function() {
|
|
this.forEachObject(function(object) {
|
|
object.setCoords();
|
|
});
|
|
return this;
|
|
},
|
|
_calcBounds: function(onlyWidthHeight) {
|
|
var aX = [], aY = [], o, prop, props = [ "tr", "br", "bl", "tl" ], i = 0, iLen = this._objects.length, j, jLen = props.length;
|
|
for (;i < iLen; ++i) {
|
|
o = this._objects[i];
|
|
o.setCoords();
|
|
for (j = 0; j < jLen; j++) {
|
|
prop = props[j];
|
|
aX.push(o.oCoords[prop].x);
|
|
aY.push(o.oCoords[prop].y);
|
|
}
|
|
}
|
|
this.set(this._getBounds(aX, aY, onlyWidthHeight));
|
|
},
|
|
_getBounds: function(aX, aY, onlyWidthHeight) {
|
|
var ivt = fabric.util.invertTransform(this.getViewportTransform()), minXY = fabric.util.transformPoint(new fabric.Point(min(aX), min(aY)), ivt), maxXY = fabric.util.transformPoint(new fabric.Point(max(aX), max(aY)), ivt), obj = {
|
|
width: maxXY.x - minXY.x || 0,
|
|
height: maxXY.y - minXY.y || 0
|
|
};
|
|
if (!onlyWidthHeight) {
|
|
obj.left = minXY.x || 0;
|
|
obj.top = minXY.y || 0;
|
|
if (this.originX === "center") {
|
|
obj.left += obj.width / 2;
|
|
}
|
|
if (this.originX === "right") {
|
|
obj.left += obj.width;
|
|
}
|
|
if (this.originY === "center") {
|
|
obj.top += obj.height / 2;
|
|
}
|
|
if (this.originY === "bottom") {
|
|
obj.top += obj.height;
|
|
}
|
|
}
|
|
return obj;
|
|
},
|
|
toSVG: function(reviver) {
|
|
var markup = this._createBaseSVGMarkup();
|
|
markup.push("<g ", this.getSvgId(), 'transform="', this.getSvgTransform(), this.getSvgTransformMatrix(), '" style="', this.getSvgFilter(), '">\n');
|
|
for (var i = 0, len = this._objects.length; i < len; i++) {
|
|
markup.push("\t", this._objects[i].toSVG(reviver));
|
|
}
|
|
markup.push("</g>\n");
|
|
return reviver ? reviver(markup.join("")) : markup.join("");
|
|
},
|
|
get: function(prop) {
|
|
if (prop in _lockProperties) {
|
|
if (this[prop]) {
|
|
return this[prop];
|
|
} else {
|
|
for (var i = 0, len = this._objects.length; i < len; i++) {
|
|
if (this._objects[i][prop]) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
} else {
|
|
if (prop in this.delegatedProperties) {
|
|
return this._objects[0] && this._objects[0].get(prop);
|
|
}
|
|
return this[prop];
|
|
}
|
|
}
|
|
});
|
|
fabric.Group.fromObject = function(object, callback) {
|
|
fabric.util.enlivenObjects(object.objects, function(enlivenedObjects) {
|
|
delete object.objects;
|
|
callback && callback(new fabric.Group(enlivenedObjects, object, true));
|
|
});
|
|
};
|
|
fabric.Group.async = true;
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var extend = fabric.util.object.extend;
|
|
if (!global.fabric) {
|
|
global.fabric = {};
|
|
}
|
|
if (global.fabric.Image) {
|
|
fabric.warn("fabric.Image is already defined.");
|
|
return;
|
|
}
|
|
fabric.Image = fabric.util.createClass(fabric.Object, {
|
|
type: "image",
|
|
crossOrigin: "",
|
|
alignX: "none",
|
|
alignY: "none",
|
|
meetOrSlice: "meet",
|
|
strokeWidth: 0,
|
|
_lastScaleX: 1,
|
|
_lastScaleY: 1,
|
|
initialize: function(element, options) {
|
|
options || (options = {});
|
|
this.filters = [];
|
|
this.resizeFilters = [];
|
|
this.callSuper("initialize", options);
|
|
this._initElement(element, options);
|
|
},
|
|
getElement: function() {
|
|
return this._element;
|
|
},
|
|
setElement: function(element, callback, options) {
|
|
this._element = element;
|
|
this._originalElement = element;
|
|
this._initConfig(options);
|
|
if (this.filters.length !== 0) {
|
|
this.applyFilters(callback);
|
|
} else if (callback) {
|
|
callback();
|
|
}
|
|
return this;
|
|
},
|
|
setCrossOrigin: function(value) {
|
|
this.crossOrigin = value;
|
|
this._element.crossOrigin = value;
|
|
return this;
|
|
},
|
|
getOriginalSize: function() {
|
|
var element = this.getElement();
|
|
return {
|
|
width: element.width,
|
|
height: element.height
|
|
};
|
|
},
|
|
_stroke: function(ctx) {
|
|
if (!this.stroke || this.strokeWidth === 0) {
|
|
return;
|
|
}
|
|
var w = this.width / 2, h = this.height / 2;
|
|
ctx.beginPath();
|
|
ctx.moveTo(-w, -h);
|
|
ctx.lineTo(w, -h);
|
|
ctx.lineTo(w, h);
|
|
ctx.lineTo(-w, h);
|
|
ctx.lineTo(-w, -h);
|
|
ctx.closePath();
|
|
},
|
|
_renderDashedStroke: function(ctx) {
|
|
var x = -this.width / 2, y = -this.height / 2, w = this.width, h = this.height;
|
|
ctx.save();
|
|
this._setStrokeStyles(ctx);
|
|
ctx.beginPath();
|
|
fabric.util.drawDashedLine(ctx, x, y, x + w, y, this.strokeDashArray);
|
|
fabric.util.drawDashedLine(ctx, x + w, y, x + w, y + h, this.strokeDashArray);
|
|
fabric.util.drawDashedLine(ctx, x + w, y + h, x, y + h, this.strokeDashArray);
|
|
fabric.util.drawDashedLine(ctx, x, y + h, x, y, this.strokeDashArray);
|
|
ctx.closePath();
|
|
ctx.restore();
|
|
},
|
|
toObject: function(propertiesToInclude) {
|
|
var filters = [], resizeFilters = [], element = this._originalElement, scaleX = 1, scaleY = 1;
|
|
this.filters.forEach(function(filterObj) {
|
|
if (filterObj) {
|
|
if (filterObj.type === "Resize") {
|
|
scaleX *= filterObj.scaleX;
|
|
scaleY *= filterObj.scaleY;
|
|
}
|
|
filters.push(filterObj.toObject());
|
|
}
|
|
});
|
|
this.resizeFilters.forEach(function(filterObj) {
|
|
filterObj && resizeFilters.push(filterObj.toObject());
|
|
});
|
|
var object = extend(this.callSuper("toObject", propertiesToInclude), {
|
|
src: element ? element.src || element._src : "",
|
|
filters: filters,
|
|
resizeFilters: resizeFilters,
|
|
crossOrigin: this.crossOrigin,
|
|
alignX: this.alignX,
|
|
alignY: this.alignY,
|
|
meetOrSlice: this.meetOrSlice
|
|
});
|
|
object.width /= scaleX;
|
|
object.height /= scaleY;
|
|
if (!this.includeDefaultValues) {
|
|
this._removeDefaultValues(object);
|
|
}
|
|
return object;
|
|
},
|
|
toSVG: function(reviver) {
|
|
var markup = this._createBaseSVGMarkup(), x = -this.width / 2, y = -this.height / 2, preserveAspectRatio = "none";
|
|
if (this.group && this.group.type === "path-group") {
|
|
x = this.left;
|
|
y = this.top;
|
|
}
|
|
if (this.alignX !== "none" && this.alignY !== "none") {
|
|
preserveAspectRatio = "x" + this.alignX + "Y" + this.alignY + " " + this.meetOrSlice;
|
|
}
|
|
markup.push('<g transform="', this.getSvgTransform(), this.getSvgTransformMatrix(), '">\n', "<image ", this.getSvgId(), 'xlink:href="', this.getSvgSrc(), '" x="', x, '" y="', y, '" style="', this.getSvgStyles(), '" width="', this.width, '" height="', this.height, '" preserveAspectRatio="', preserveAspectRatio, '"', "></image>\n");
|
|
if (this.stroke || this.strokeDashArray) {
|
|
var origFill = this.fill;
|
|
this.fill = null;
|
|
markup.push("<rect ", 'x="', x, '" y="', y, '" width="', this.width, '" height="', this.height, '" style="', this.getSvgStyles(), '"/>\n');
|
|
this.fill = origFill;
|
|
}
|
|
markup.push("</g>\n");
|
|
return reviver ? reviver(markup.join("")) : markup.join("");
|
|
},
|
|
getSrc: function() {
|
|
if (this.getElement()) {
|
|
return this.getElement().src || this.getElement()._src;
|
|
}
|
|
},
|
|
setSrc: function(src, callback, options) {
|
|
fabric.util.loadImage(src, function(img) {
|
|
return this.setElement(img, callback, options);
|
|
}, this, options && options.crossOrigin);
|
|
},
|
|
toString: function() {
|
|
return '#<fabric.Image: { src: "' + this.getSrc() + '" }>';
|
|
},
|
|
clone: function(callback, propertiesToInclude) {
|
|
this.constructor.fromObject(this.toObject(propertiesToInclude), callback);
|
|
},
|
|
applyFilters: function(callback, filters, imgElement, forResizing) {
|
|
filters = filters || this.filters;
|
|
imgElement = imgElement || this._originalElement;
|
|
if (!imgElement) {
|
|
return;
|
|
}
|
|
var imgEl = imgElement, canvasEl = fabric.util.createCanvasElement(), replacement = fabric.util.createImage(), _this = this;
|
|
canvasEl.width = imgEl.width;
|
|
canvasEl.height = imgEl.height;
|
|
canvasEl.getContext("2d").drawImage(imgEl, 0, 0, imgEl.width, imgEl.height);
|
|
if (filters.length === 0) {
|
|
this._element = imgElement;
|
|
callback && callback();
|
|
return canvasEl;
|
|
}
|
|
filters.forEach(function(filter) {
|
|
filter && filter.applyTo(canvasEl, filter.scaleX || _this.scaleX, filter.scaleY || _this.scaleY);
|
|
if (!forResizing && filter && filter.type === "Resize") {
|
|
_this.width *= filter.scaleX;
|
|
_this.height *= filter.scaleY;
|
|
}
|
|
});
|
|
replacement.width = canvasEl.width;
|
|
replacement.height = canvasEl.height;
|
|
if (fabric.isLikelyNode) {
|
|
replacement.src = canvasEl.toBuffer(undefined, fabric.Image.pngCompression);
|
|
_this._element = replacement;
|
|
!forResizing && (_this._filteredEl = replacement);
|
|
callback && callback();
|
|
} else {
|
|
replacement.onload = function() {
|
|
_this._element = replacement;
|
|
!forResizing && (_this._filteredEl = replacement);
|
|
callback && callback();
|
|
replacement.onload = canvasEl = imgEl = null;
|
|
};
|
|
replacement.src = canvasEl.toDataURL("image/png");
|
|
}
|
|
return canvasEl;
|
|
},
|
|
_render: function(ctx, noTransform) {
|
|
var x, y, imageMargins = this._findMargins(), elementToDraw;
|
|
x = noTransform ? this.left : -this.width / 2;
|
|
y = noTransform ? this.top : -this.height / 2;
|
|
if (this.meetOrSlice === "slice") {
|
|
ctx.beginPath();
|
|
ctx.rect(x, y, this.width, this.height);
|
|
ctx.clip();
|
|
}
|
|
if (this.isMoving === false && this.resizeFilters.length && this._needsResize()) {
|
|
this._lastScaleX = this.scaleX;
|
|
this._lastScaleY = this.scaleY;
|
|
elementToDraw = this.applyFilters(null, this.resizeFilters, this._filteredEl || this._originalElement, true);
|
|
} else {
|
|
elementToDraw = this._element;
|
|
}
|
|
elementToDraw && ctx.drawImage(elementToDraw, x + imageMargins.marginX, y + imageMargins.marginY, imageMargins.width, imageMargins.height);
|
|
this._stroke(ctx);
|
|
this._renderStroke(ctx);
|
|
},
|
|
_needsResize: function() {
|
|
return this.scaleX !== this._lastScaleX || this.scaleY !== this._lastScaleY;
|
|
},
|
|
_findMargins: function() {
|
|
var width = this.width, height = this.height, scales, scale, marginX = 0, marginY = 0;
|
|
if (this.alignX !== "none" || this.alignY !== "none") {
|
|
scales = [ this.width / this._element.width, this.height / this._element.height ];
|
|
scale = this.meetOrSlice === "meet" ? Math.min.apply(null, scales) : Math.max.apply(null, scales);
|
|
width = this._element.width * scale;
|
|
height = this._element.height * scale;
|
|
if (this.alignX === "Mid") {
|
|
marginX = (this.width - width) / 2;
|
|
}
|
|
if (this.alignX === "Max") {
|
|
marginX = this.width - width;
|
|
}
|
|
if (this.alignY === "Mid") {
|
|
marginY = (this.height - height) / 2;
|
|
}
|
|
if (this.alignY === "Max") {
|
|
marginY = this.height - height;
|
|
}
|
|
}
|
|
return {
|
|
width: width,
|
|
height: height,
|
|
marginX: marginX,
|
|
marginY: marginY
|
|
};
|
|
},
|
|
_resetWidthHeight: function() {
|
|
var element = this.getElement();
|
|
this.set("width", element.width);
|
|
this.set("height", element.height);
|
|
},
|
|
_initElement: function(element, options) {
|
|
this.setElement(fabric.util.getById(element), null, options);
|
|
fabric.util.addClass(this.getElement(), fabric.Image.CSS_CANVAS);
|
|
},
|
|
_initConfig: function(options) {
|
|
options || (options = {});
|
|
this.setOptions(options);
|
|
this._setWidthHeight(options);
|
|
if (this._element && this.crossOrigin) {
|
|
this._element.crossOrigin = this.crossOrigin;
|
|
}
|
|
},
|
|
_initFilters: function(filters, callback) {
|
|
if (filters && filters.length) {
|
|
fabric.util.enlivenObjects(filters, function(enlivenedObjects) {
|
|
callback && callback(enlivenedObjects);
|
|
}, "fabric.Image.filters");
|
|
} else {
|
|
callback && callback();
|
|
}
|
|
},
|
|
_setWidthHeight: function(options) {
|
|
this.width = "width" in options ? options.width : this.getElement() ? this.getElement().width || 0 : 0;
|
|
this.height = "height" in options ? options.height : this.getElement() ? this.getElement().height || 0 : 0;
|
|
},
|
|
complexity: function() {
|
|
return 1;
|
|
}
|
|
});
|
|
fabric.Image.CSS_CANVAS = "canvas-img";
|
|
fabric.Image.prototype.getSvgSrc = fabric.Image.prototype.getSrc;
|
|
fabric.Image.fromObject = function(object, callback) {
|
|
fabric.util.loadImage(object.src, function(img) {
|
|
fabric.Image.prototype._initFilters.call(object, object.filters, function(filters) {
|
|
object.filters = filters || [];
|
|
fabric.Image.prototype._initFilters.call(object, object.resizeFilters, function(resizeFilters) {
|
|
object.resizeFilters = resizeFilters || [];
|
|
var instance = new fabric.Image(img, object);
|
|
callback && callback(instance);
|
|
});
|
|
});
|
|
}, null, object.crossOrigin);
|
|
};
|
|
fabric.Image.fromURL = function(url, callback, imgOptions) {
|
|
fabric.util.loadImage(url, function(img) {
|
|
callback && callback(new fabric.Image(img, imgOptions));
|
|
}, null, imgOptions && imgOptions.crossOrigin);
|
|
};
|
|
fabric.Image.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat("x y width height preserveAspectRatio xlink:href".split(" "));
|
|
fabric.Image.fromElement = function(element, callback, options) {
|
|
var parsedAttributes = fabric.parseAttributes(element, fabric.Image.ATTRIBUTE_NAMES), preserveAR;
|
|
if (parsedAttributes.preserveAspectRatio) {
|
|
preserveAR = fabric.util.parsePreserveAspectRatioAttribute(parsedAttributes.preserveAspectRatio);
|
|
extend(parsedAttributes, preserveAR);
|
|
}
|
|
fabric.Image.fromURL(parsedAttributes["xlink:href"], callback, extend(options ? fabric.util.object.clone(options) : {}, parsedAttributes));
|
|
};
|
|
fabric.Image.async = true;
|
|
fabric.Image.pngCompression = 1;
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
fabric.util.object.extend(fabric.Object.prototype, {
|
|
_getAngleValueForStraighten: function() {
|
|
var angle = this.getAngle() % 360;
|
|
if (angle > 0) {
|
|
return Math.round((angle - 1) / 90) * 90;
|
|
}
|
|
return Math.round(angle / 90) * 90;
|
|
},
|
|
straighten: function() {
|
|
this.setAngle(this._getAngleValueForStraighten());
|
|
return this;
|
|
},
|
|
fxStraighten: function(callbacks) {
|
|
callbacks = callbacks || {};
|
|
var empty = function() {}, onComplete = callbacks.onComplete || empty, onChange = callbacks.onChange || empty, _this = this;
|
|
fabric.util.animate({
|
|
startValue: this.get("angle"),
|
|
endValue: this._getAngleValueForStraighten(),
|
|
duration: this.FX_DURATION,
|
|
onChange: function(value) {
|
|
_this.setAngle(value);
|
|
onChange();
|
|
},
|
|
onComplete: function() {
|
|
_this.setCoords();
|
|
onComplete();
|
|
},
|
|
onStart: function() {
|
|
_this.set("active", false);
|
|
}
|
|
});
|
|
return this;
|
|
}
|
|
});
|
|
|
|
fabric.util.object.extend(fabric.StaticCanvas.prototype, {
|
|
straightenObject: function(object) {
|
|
object.straighten();
|
|
this.renderAll();
|
|
return this;
|
|
},
|
|
fxStraightenObject: function(object) {
|
|
object.fxStraighten({
|
|
onChange: this.renderAll.bind(this)
|
|
});
|
|
return this;
|
|
}
|
|
});
|
|
|
|
fabric.Image.filters = fabric.Image.filters || {};
|
|
|
|
fabric.Image.filters.BaseFilter = fabric.util.createClass({
|
|
type: "BaseFilter",
|
|
initialize: function(options) {
|
|
if (options) {
|
|
this.setOptions(options);
|
|
}
|
|
},
|
|
setOptions: function(options) {
|
|
for (var prop in options) {
|
|
this[prop] = options[prop];
|
|
}
|
|
},
|
|
toObject: function() {
|
|
return {
|
|
type: this.type
|
|
};
|
|
},
|
|
toJSON: function() {
|
|
return this.toObject();
|
|
}
|
|
});
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), extend = fabric.util.object.extend;
|
|
fabric.Image.filters.Brightness = fabric.util.createClass(fabric.Image.filters.BaseFilter, {
|
|
type: "Brightness",
|
|
initialize: function(options) {
|
|
options = options || {};
|
|
this.brightness = options.brightness || 0;
|
|
},
|
|
applyTo: function(canvasEl) {
|
|
var context = canvasEl.getContext("2d"), imageData = context.getImageData(0, 0, canvasEl.width, canvasEl.height), data = imageData.data, brightness = this.brightness;
|
|
for (var i = 0, len = data.length; i < len; i += 4) {
|
|
data[i] += brightness;
|
|
data[i + 1] += brightness;
|
|
data[i + 2] += brightness;
|
|
}
|
|
context.putImageData(imageData, 0, 0);
|
|
},
|
|
toObject: function() {
|
|
return extend(this.callSuper("toObject"), {
|
|
brightness: this.brightness
|
|
});
|
|
}
|
|
});
|
|
fabric.Image.filters.Brightness.fromObject = function(object) {
|
|
return new fabric.Image.filters.Brightness(object);
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), extend = fabric.util.object.extend;
|
|
fabric.Image.filters.Convolute = fabric.util.createClass(fabric.Image.filters.BaseFilter, {
|
|
type: "Convolute",
|
|
initialize: function(options) {
|
|
options = options || {};
|
|
this.opaque = options.opaque;
|
|
this.matrix = options.matrix || [ 0, 0, 0, 0, 1, 0, 0, 0, 0 ];
|
|
},
|
|
applyTo: function(canvasEl) {
|
|
var weights = this.matrix, context = canvasEl.getContext("2d"), pixels = context.getImageData(0, 0, canvasEl.width, canvasEl.height), side = Math.round(Math.sqrt(weights.length)), halfSide = Math.floor(side / 2), src = pixels.data, sw = pixels.width, sh = pixels.height, output = context.createImageData(sw, sh), dst = output.data, alphaFac = this.opaque ? 1 : 0, r, g, b, a, dstOff, scx, scy, srcOff, wt;
|
|
for (var y = 0; y < sh; y++) {
|
|
for (var x = 0; x < sw; x++) {
|
|
dstOff = (y * sw + x) * 4;
|
|
r = 0;
|
|
g = 0;
|
|
b = 0;
|
|
a = 0;
|
|
for (var cy = 0; cy < side; cy++) {
|
|
for (var cx = 0; cx < side; cx++) {
|
|
scy = y + cy - halfSide;
|
|
scx = x + cx - halfSide;
|
|
if (scy < 0 || scy > sh || scx < 0 || scx > sw) {
|
|
continue;
|
|
}
|
|
srcOff = (scy * sw + scx) * 4;
|
|
wt = weights[cy * side + cx];
|
|
r += src[srcOff] * wt;
|
|
g += src[srcOff + 1] * wt;
|
|
b += src[srcOff + 2] * wt;
|
|
a += src[srcOff + 3] * wt;
|
|
}
|
|
}
|
|
dst[dstOff] = r;
|
|
dst[dstOff + 1] = g;
|
|
dst[dstOff + 2] = b;
|
|
dst[dstOff + 3] = a + alphaFac * (255 - a);
|
|
}
|
|
}
|
|
context.putImageData(output, 0, 0);
|
|
},
|
|
toObject: function() {
|
|
return extend(this.callSuper("toObject"), {
|
|
opaque: this.opaque,
|
|
matrix: this.matrix
|
|
});
|
|
}
|
|
});
|
|
fabric.Image.filters.Convolute.fromObject = function(object) {
|
|
return new fabric.Image.filters.Convolute(object);
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), extend = fabric.util.object.extend;
|
|
fabric.Image.filters.GradientTransparency = fabric.util.createClass(fabric.Image.filters.BaseFilter, {
|
|
type: "GradientTransparency",
|
|
initialize: function(options) {
|
|
options = options || {};
|
|
this.threshold = options.threshold || 100;
|
|
},
|
|
applyTo: function(canvasEl) {
|
|
var context = canvasEl.getContext("2d"), imageData = context.getImageData(0, 0, canvasEl.width, canvasEl.height), data = imageData.data, threshold = this.threshold, total = data.length;
|
|
for (var i = 0, len = data.length; i < len; i += 4) {
|
|
data[i + 3] = threshold + 255 * (total - i) / total;
|
|
}
|
|
context.putImageData(imageData, 0, 0);
|
|
},
|
|
toObject: function() {
|
|
return extend(this.callSuper("toObject"), {
|
|
threshold: this.threshold
|
|
});
|
|
}
|
|
});
|
|
fabric.Image.filters.GradientTransparency.fromObject = function(object) {
|
|
return new fabric.Image.filters.GradientTransparency(object);
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {});
|
|
fabric.Image.filters.Grayscale = fabric.util.createClass(fabric.Image.filters.BaseFilter, {
|
|
type: "Grayscale",
|
|
applyTo: function(canvasEl) {
|
|
var context = canvasEl.getContext("2d"), imageData = context.getImageData(0, 0, canvasEl.width, canvasEl.height), data = imageData.data, len = imageData.width * imageData.height * 4, index = 0, average;
|
|
while (index < len) {
|
|
average = (data[index] + data[index + 1] + data[index + 2]) / 3;
|
|
data[index] = average;
|
|
data[index + 1] = average;
|
|
data[index + 2] = average;
|
|
index += 4;
|
|
}
|
|
context.putImageData(imageData, 0, 0);
|
|
}
|
|
});
|
|
fabric.Image.filters.Grayscale.fromObject = function() {
|
|
return new fabric.Image.filters.Grayscale();
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {});
|
|
fabric.Image.filters.Invert = fabric.util.createClass(fabric.Image.filters.BaseFilter, {
|
|
type: "Invert",
|
|
applyTo: function(canvasEl) {
|
|
var context = canvasEl.getContext("2d"), imageData = context.getImageData(0, 0, canvasEl.width, canvasEl.height), data = imageData.data, iLen = data.length, i;
|
|
for (i = 0; i < iLen; i += 4) {
|
|
data[i] = 255 - data[i];
|
|
data[i + 1] = 255 - data[i + 1];
|
|
data[i + 2] = 255 - data[i + 2];
|
|
}
|
|
context.putImageData(imageData, 0, 0);
|
|
}
|
|
});
|
|
fabric.Image.filters.Invert.fromObject = function() {
|
|
return new fabric.Image.filters.Invert();
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), extend = fabric.util.object.extend;
|
|
fabric.Image.filters.Mask = fabric.util.createClass(fabric.Image.filters.BaseFilter, {
|
|
type: "Mask",
|
|
initialize: function(options) {
|
|
options = options || {};
|
|
this.mask = options.mask;
|
|
this.channel = [ 0, 1, 2, 3 ].indexOf(options.channel) > -1 ? options.channel : 0;
|
|
},
|
|
applyTo: function(canvasEl) {
|
|
if (!this.mask) {
|
|
return;
|
|
}
|
|
var context = canvasEl.getContext("2d"), imageData = context.getImageData(0, 0, canvasEl.width, canvasEl.height), data = imageData.data, maskEl = this.mask.getElement(), maskCanvasEl = fabric.util.createCanvasElement(), channel = this.channel, i, iLen = imageData.width * imageData.height * 4;
|
|
maskCanvasEl.width = canvasEl.width;
|
|
maskCanvasEl.height = canvasEl.height;
|
|
maskCanvasEl.getContext("2d").drawImage(maskEl, 0, 0, canvasEl.width, canvasEl.height);
|
|
var maskImageData = maskCanvasEl.getContext("2d").getImageData(0, 0, canvasEl.width, canvasEl.height), maskData = maskImageData.data;
|
|
for (i = 0; i < iLen; i += 4) {
|
|
data[i + 3] = maskData[i + channel];
|
|
}
|
|
context.putImageData(imageData, 0, 0);
|
|
},
|
|
toObject: function() {
|
|
return extend(this.callSuper("toObject"), {
|
|
mask: this.mask.toObject(),
|
|
channel: this.channel
|
|
});
|
|
}
|
|
});
|
|
fabric.Image.filters.Mask.fromObject = function(object, callback) {
|
|
fabric.util.loadImage(object.mask.src, function(img) {
|
|
object.mask = new fabric.Image(img, object.mask);
|
|
callback && callback(new fabric.Image.filters.Mask(object));
|
|
});
|
|
};
|
|
fabric.Image.filters.Mask.async = true;
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), extend = fabric.util.object.extend;
|
|
fabric.Image.filters.Noise = fabric.util.createClass(fabric.Image.filters.BaseFilter, {
|
|
type: "Noise",
|
|
initialize: function(options) {
|
|
options = options || {};
|
|
this.noise = options.noise || 0;
|
|
},
|
|
applyTo: function(canvasEl) {
|
|
var context = canvasEl.getContext("2d"), imageData = context.getImageData(0, 0, canvasEl.width, canvasEl.height), data = imageData.data, noise = this.noise, rand;
|
|
for (var i = 0, len = data.length; i < len; i += 4) {
|
|
rand = (.5 - Math.random()) * noise;
|
|
data[i] += rand;
|
|
data[i + 1] += rand;
|
|
data[i + 2] += rand;
|
|
}
|
|
context.putImageData(imageData, 0, 0);
|
|
},
|
|
toObject: function() {
|
|
return extend(this.callSuper("toObject"), {
|
|
noise: this.noise
|
|
});
|
|
}
|
|
});
|
|
fabric.Image.filters.Noise.fromObject = function(object) {
|
|
return new fabric.Image.filters.Noise(object);
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), extend = fabric.util.object.extend;
|
|
fabric.Image.filters.Pixelate = fabric.util.createClass(fabric.Image.filters.BaseFilter, {
|
|
type: "Pixelate",
|
|
initialize: function(options) {
|
|
options = options || {};
|
|
this.blocksize = options.blocksize || 4;
|
|
},
|
|
applyTo: function(canvasEl) {
|
|
var context = canvasEl.getContext("2d"), imageData = context.getImageData(0, 0, canvasEl.width, canvasEl.height), data = imageData.data, iLen = imageData.height, jLen = imageData.width, index, i, j, r, g, b, a;
|
|
for (i = 0; i < iLen; i += this.blocksize) {
|
|
for (j = 0; j < jLen; j += this.blocksize) {
|
|
index = i * 4 * jLen + j * 4;
|
|
r = data[index];
|
|
g = data[index + 1];
|
|
b = data[index + 2];
|
|
a = data[index + 3];
|
|
for (var _i = i, _ilen = i + this.blocksize; _i < _ilen; _i++) {
|
|
for (var _j = j, _jlen = j + this.blocksize; _j < _jlen; _j++) {
|
|
index = _i * 4 * jLen + _j * 4;
|
|
data[index] = r;
|
|
data[index + 1] = g;
|
|
data[index + 2] = b;
|
|
data[index + 3] = a;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
context.putImageData(imageData, 0, 0);
|
|
},
|
|
toObject: function() {
|
|
return extend(this.callSuper("toObject"), {
|
|
blocksize: this.blocksize
|
|
});
|
|
}
|
|
});
|
|
fabric.Image.filters.Pixelate.fromObject = function(object) {
|
|
return new fabric.Image.filters.Pixelate(object);
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), extend = fabric.util.object.extend;
|
|
fabric.Image.filters.RemoveWhite = fabric.util.createClass(fabric.Image.filters.BaseFilter, {
|
|
type: "RemoveWhite",
|
|
initialize: function(options) {
|
|
options = options || {};
|
|
this.threshold = options.threshold || 30;
|
|
this.distance = options.distance || 20;
|
|
},
|
|
applyTo: function(canvasEl) {
|
|
var context = canvasEl.getContext("2d"), imageData = context.getImageData(0, 0, canvasEl.width, canvasEl.height), data = imageData.data, threshold = this.threshold, distance = this.distance, limit = 255 - threshold, abs = Math.abs, r, g, b;
|
|
for (var i = 0, len = data.length; i < len; i += 4) {
|
|
r = data[i];
|
|
g = data[i + 1];
|
|
b = data[i + 2];
|
|
if (r > limit && g > limit && b > limit && abs(r - g) < distance && abs(r - b) < distance && abs(g - b) < distance) {
|
|
data[i + 3] = 0;
|
|
}
|
|
}
|
|
context.putImageData(imageData, 0, 0);
|
|
},
|
|
toObject: function() {
|
|
return extend(this.callSuper("toObject"), {
|
|
threshold: this.threshold,
|
|
distance: this.distance
|
|
});
|
|
}
|
|
});
|
|
fabric.Image.filters.RemoveWhite.fromObject = function(object) {
|
|
return new fabric.Image.filters.RemoveWhite(object);
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {});
|
|
fabric.Image.filters.Sepia = fabric.util.createClass(fabric.Image.filters.BaseFilter, {
|
|
type: "Sepia",
|
|
applyTo: function(canvasEl) {
|
|
var context = canvasEl.getContext("2d"), imageData = context.getImageData(0, 0, canvasEl.width, canvasEl.height), data = imageData.data, iLen = data.length, i, avg;
|
|
for (i = 0; i < iLen; i += 4) {
|
|
avg = .3 * data[i] + .59 * data[i + 1] + .11 * data[i + 2];
|
|
data[i] = avg + 100;
|
|
data[i + 1] = avg + 50;
|
|
data[i + 2] = avg + 255;
|
|
}
|
|
context.putImageData(imageData, 0, 0);
|
|
}
|
|
});
|
|
fabric.Image.filters.Sepia.fromObject = function() {
|
|
return new fabric.Image.filters.Sepia();
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {});
|
|
fabric.Image.filters.Sepia2 = fabric.util.createClass(fabric.Image.filters.BaseFilter, {
|
|
type: "Sepia2",
|
|
applyTo: function(canvasEl) {
|
|
var context = canvasEl.getContext("2d"), imageData = context.getImageData(0, 0, canvasEl.width, canvasEl.height), data = imageData.data, iLen = data.length, i, r, g, b;
|
|
for (i = 0; i < iLen; i += 4) {
|
|
r = data[i];
|
|
g = data[i + 1];
|
|
b = data[i + 2];
|
|
data[i] = (r * .393 + g * .769 + b * .189) / 1.351;
|
|
data[i + 1] = (r * .349 + g * .686 + b * .168) / 1.203;
|
|
data[i + 2] = (r * .272 + g * .534 + b * .131) / 2.14;
|
|
}
|
|
context.putImageData(imageData, 0, 0);
|
|
}
|
|
});
|
|
fabric.Image.filters.Sepia2.fromObject = function() {
|
|
return new fabric.Image.filters.Sepia2();
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), extend = fabric.util.object.extend;
|
|
fabric.Image.filters.Tint = fabric.util.createClass(fabric.Image.filters.BaseFilter, {
|
|
type: "Tint",
|
|
initialize: function(options) {
|
|
options = options || {};
|
|
this.color = options.color || "#000000";
|
|
this.opacity = typeof options.opacity !== "undefined" ? options.opacity : new fabric.Color(this.color).getAlpha();
|
|
},
|
|
applyTo: function(canvasEl) {
|
|
var context = canvasEl.getContext("2d"), imageData = context.getImageData(0, 0, canvasEl.width, canvasEl.height), data = imageData.data, iLen = data.length, i, tintR, tintG, tintB, r, g, b, alpha1, source;
|
|
source = new fabric.Color(this.color).getSource();
|
|
tintR = source[0] * this.opacity;
|
|
tintG = source[1] * this.opacity;
|
|
tintB = source[2] * this.opacity;
|
|
alpha1 = 1 - this.opacity;
|
|
for (i = 0; i < iLen; i += 4) {
|
|
r = data[i];
|
|
g = data[i + 1];
|
|
b = data[i + 2];
|
|
data[i] = tintR + r * alpha1;
|
|
data[i + 1] = tintG + g * alpha1;
|
|
data[i + 2] = tintB + b * alpha1;
|
|
}
|
|
context.putImageData(imageData, 0, 0);
|
|
},
|
|
toObject: function() {
|
|
return extend(this.callSuper("toObject"), {
|
|
color: this.color,
|
|
opacity: this.opacity
|
|
});
|
|
}
|
|
});
|
|
fabric.Image.filters.Tint.fromObject = function(object) {
|
|
return new fabric.Image.filters.Tint(object);
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), extend = fabric.util.object.extend;
|
|
fabric.Image.filters.Multiply = fabric.util.createClass(fabric.Image.filters.BaseFilter, {
|
|
type: "Multiply",
|
|
initialize: function(options) {
|
|
options = options || {};
|
|
this.color = options.color || "#000000";
|
|
},
|
|
applyTo: function(canvasEl) {
|
|
var context = canvasEl.getContext("2d"), imageData = context.getImageData(0, 0, canvasEl.width, canvasEl.height), data = imageData.data, iLen = data.length, i, source;
|
|
source = new fabric.Color(this.color).getSource();
|
|
for (i = 0; i < iLen; i += 4) {
|
|
data[i] *= source[0] / 255;
|
|
data[i + 1] *= source[1] / 255;
|
|
data[i + 2] *= source[2] / 255;
|
|
}
|
|
context.putImageData(imageData, 0, 0);
|
|
},
|
|
toObject: function() {
|
|
return extend(this.callSuper("toObject"), {
|
|
color: this.color
|
|
});
|
|
}
|
|
});
|
|
fabric.Image.filters.Multiply.fromObject = function(object) {
|
|
return new fabric.Image.filters.Multiply(object);
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric;
|
|
fabric.Image.filters.Blend = fabric.util.createClass(fabric.Image.filters.BaseFilter, {
|
|
type: "Blend",
|
|
initialize: function(options) {
|
|
options = options || {};
|
|
this.color = options.color || "#000";
|
|
this.image = options.image || false;
|
|
this.mode = options.mode || "multiply";
|
|
this.alpha = options.alpha || 1;
|
|
},
|
|
applyTo: function(canvasEl) {
|
|
var context = canvasEl.getContext("2d"), imageData = context.getImageData(0, 0, canvasEl.width, canvasEl.height), data = imageData.data, tr, tg, tb, r, g, b, _r, _g, _b, source, isImage = false;
|
|
if (this.image) {
|
|
isImage = true;
|
|
var _el = fabric.util.createCanvasElement();
|
|
_el.width = this.image.width;
|
|
_el.height = this.image.height;
|
|
var tmpCanvas = new fabric.StaticCanvas(_el);
|
|
tmpCanvas.add(this.image);
|
|
var context2 = tmpCanvas.getContext("2d");
|
|
source = context2.getImageData(0, 0, tmpCanvas.width, tmpCanvas.height).data;
|
|
} else {
|
|
source = new fabric.Color(this.color).getSource();
|
|
tr = source[0] * this.alpha;
|
|
tg = source[1] * this.alpha;
|
|
tb = source[2] * this.alpha;
|
|
}
|
|
for (var i = 0, len = data.length; i < len; i += 4) {
|
|
r = data[i];
|
|
g = data[i + 1];
|
|
b = data[i + 2];
|
|
if (isImage) {
|
|
tr = source[i] * this.alpha;
|
|
tg = source[i + 1] * this.alpha;
|
|
tb = source[i + 2] * this.alpha;
|
|
}
|
|
switch (this.mode) {
|
|
case "multiply":
|
|
data[i] = r * tr / 255;
|
|
data[i + 1] = g * tg / 255;
|
|
data[i + 2] = b * tb / 255;
|
|
break;
|
|
|
|
case "screen":
|
|
data[i] = 1 - (1 - r) * (1 - tr);
|
|
data[i + 1] = 1 - (1 - g) * (1 - tg);
|
|
data[i + 2] = 1 - (1 - b) * (1 - tb);
|
|
break;
|
|
|
|
case "add":
|
|
data[i] = Math.min(255, r + tr);
|
|
data[i + 1] = Math.min(255, g + tg);
|
|
data[i + 2] = Math.min(255, b + tb);
|
|
break;
|
|
|
|
case "diff":
|
|
case "difference":
|
|
data[i] = Math.abs(r - tr);
|
|
data[i + 1] = Math.abs(g - tg);
|
|
data[i + 2] = Math.abs(b - tb);
|
|
break;
|
|
|
|
case "subtract":
|
|
_r = r - tr;
|
|
_g = g - tg;
|
|
_b = b - tb;
|
|
data[i] = _r < 0 ? 0 : _r;
|
|
data[i + 1] = _g < 0 ? 0 : _g;
|
|
data[i + 2] = _b < 0 ? 0 : _b;
|
|
break;
|
|
|
|
case "darken":
|
|
data[i] = Math.min(r, tr);
|
|
data[i + 1] = Math.min(g, tg);
|
|
data[i + 2] = Math.min(b, tb);
|
|
break;
|
|
|
|
case "lighten":
|
|
data[i] = Math.max(r, tr);
|
|
data[i + 1] = Math.max(g, tg);
|
|
data[i + 2] = Math.max(b, tb);
|
|
break;
|
|
}
|
|
}
|
|
context.putImageData(imageData, 0, 0);
|
|
},
|
|
toObject: function() {
|
|
return {
|
|
color: this.color,
|
|
image: this.image,
|
|
mode: this.mode,
|
|
alpha: this.alpha
|
|
};
|
|
}
|
|
});
|
|
fabric.Image.filters.Blend.fromObject = function(object) {
|
|
return new fabric.Image.filters.Blend(object);
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), pow = Math.pow, floor = Math.floor, sqrt = Math.sqrt, abs = Math.abs, max = Math.max, round = Math.round, sin = Math.sin, ceil = Math.ceil;
|
|
fabric.Image.filters.Resize = fabric.util.createClass(fabric.Image.filters.BaseFilter, {
|
|
type: "Resize",
|
|
resizeType: "hermite",
|
|
scaleX: 0,
|
|
scaleY: 0,
|
|
lanczosLobes: 3,
|
|
applyTo: function(canvasEl, scaleX, scaleY) {
|
|
this.rcpScaleX = 1 / scaleX;
|
|
this.rcpScaleY = 1 / scaleY;
|
|
var oW = canvasEl.width, oH = canvasEl.height, dW = round(oW * scaleX), dH = round(oH * scaleY), imageData;
|
|
if (this.resizeType === "sliceHack") {
|
|
imageData = this.sliceByTwo(canvasEl, oW, oH, dW, dH);
|
|
}
|
|
if (this.resizeType === "hermite") {
|
|
imageData = this.hermiteFastResize(canvasEl, oW, oH, dW, dH);
|
|
}
|
|
if (this.resizeType === "bilinear") {
|
|
imageData = this.bilinearFiltering(canvasEl, oW, oH, dW, dH);
|
|
}
|
|
if (this.resizeType === "lanczos") {
|
|
imageData = this.lanczosResize(canvasEl, oW, oH, dW, dH);
|
|
}
|
|
canvasEl.width = dW;
|
|
canvasEl.height = dH;
|
|
canvasEl.getContext("2d").putImageData(imageData, 0, 0);
|
|
},
|
|
sliceByTwo: function(canvasEl, width, height, newWidth, newHeight) {
|
|
var context = canvasEl.getContext("2d"), imageData, multW = .5, multH = .5, signW = 1, signH = 1, doneW = false, doneH = false, stepW = width, stepH = height, tmpCanvas = fabric.util.createCanvasElement(), tmpCtx = tmpCanvas.getContext("2d");
|
|
newWidth = floor(newWidth);
|
|
newHeight = floor(newHeight);
|
|
tmpCanvas.width = max(newWidth, width);
|
|
tmpCanvas.height = max(newHeight, height);
|
|
if (newWidth > width) {
|
|
multW = 2;
|
|
signW = -1;
|
|
}
|
|
if (newHeight > height) {
|
|
multH = 2;
|
|
signH = -1;
|
|
}
|
|
imageData = context.getImageData(0, 0, width, height);
|
|
canvasEl.width = max(newWidth, width);
|
|
canvasEl.height = max(newHeight, height);
|
|
context.putImageData(imageData, 0, 0);
|
|
while (!doneW || !doneH) {
|
|
width = stepW;
|
|
height = stepH;
|
|
if (newWidth * signW < floor(stepW * multW * signW)) {
|
|
stepW = floor(stepW * multW);
|
|
} else {
|
|
stepW = newWidth;
|
|
doneW = true;
|
|
}
|
|
if (newHeight * signH < floor(stepH * multH * signH)) {
|
|
stepH = floor(stepH * multH);
|
|
} else {
|
|
stepH = newHeight;
|
|
doneH = true;
|
|
}
|
|
imageData = context.getImageData(0, 0, width, height);
|
|
tmpCtx.putImageData(imageData, 0, 0);
|
|
context.clearRect(0, 0, stepW, stepH);
|
|
context.drawImage(tmpCanvas, 0, 0, width, height, 0, 0, stepW, stepH);
|
|
}
|
|
return context.getImageData(0, 0, newWidth, newHeight);
|
|
},
|
|
lanczosResize: function(canvasEl, oW, oH, dW, dH) {
|
|
function lanczosCreate(lobes) {
|
|
return function(x) {
|
|
if (x > lobes) {
|
|
return 0;
|
|
}
|
|
x *= Math.PI;
|
|
if (abs(x) < 1e-16) {
|
|
return 1;
|
|
}
|
|
var xx = x / lobes;
|
|
return sin(x) * sin(xx) / x / xx;
|
|
};
|
|
}
|
|
function process(u) {
|
|
var v, i, weight, idx, a, red, green, blue, alpha, fX, fY;
|
|
center.x = (u + .5) * ratioX;
|
|
icenter.x = floor(center.x);
|
|
for (v = 0; v < dH; v++) {
|
|
center.y = (v + .5) * ratioY;
|
|
icenter.y = floor(center.y);
|
|
a = 0, red = 0, green = 0, blue = 0, alpha = 0;
|
|
for (i = icenter.x - range2X; i <= icenter.x + range2X; i++) {
|
|
if (i < 0 || i >= oW) {
|
|
continue;
|
|
}
|
|
fX = floor(1e3 * abs(i - center.x));
|
|
if (!cacheLanc[fX]) {
|
|
cacheLanc[fX] = {};
|
|
}
|
|
for (var j = icenter.y - range2Y; j <= icenter.y + range2Y; j++) {
|
|
if (j < 0 || j >= oH) {
|
|
continue;
|
|
}
|
|
fY = floor(1e3 * abs(j - center.y));
|
|
if (!cacheLanc[fX][fY]) {
|
|
cacheLanc[fX][fY] = lanczos(sqrt(pow(fX * rcpRatioX, 2) + pow(fY * rcpRatioY, 2)) / 1e3);
|
|
}
|
|
weight = cacheLanc[fX][fY];
|
|
if (weight > 0) {
|
|
idx = (j * oW + i) * 4;
|
|
a += weight;
|
|
red += weight * srcData[idx];
|
|
green += weight * srcData[idx + 1];
|
|
blue += weight * srcData[idx + 2];
|
|
alpha += weight * srcData[idx + 3];
|
|
}
|
|
}
|
|
}
|
|
idx = (v * dW + u) * 4;
|
|
destData[idx] = red / a;
|
|
destData[idx + 1] = green / a;
|
|
destData[idx + 2] = blue / a;
|
|
destData[idx + 3] = alpha / a;
|
|
}
|
|
if (++u < dW) {
|
|
return process(u);
|
|
} else {
|
|
return destImg;
|
|
}
|
|
}
|
|
var context = canvasEl.getContext("2d"), srcImg = context.getImageData(0, 0, oW, oH), destImg = context.getImageData(0, 0, dW, dH), srcData = srcImg.data, destData = destImg.data, lanczos = lanczosCreate(this.lanczosLobes), ratioX = this.rcpScaleX, ratioY = this.rcpScaleY, rcpRatioX = 2 / this.rcpScaleX, rcpRatioY = 2 / this.rcpScaleY, range2X = ceil(ratioX * this.lanczosLobes / 2), range2Y = ceil(ratioY * this.lanczosLobes / 2), cacheLanc = {}, center = {}, icenter = {};
|
|
return process(0);
|
|
},
|
|
bilinearFiltering: function(canvasEl, w, h, w2, h2) {
|
|
var a, b, c, d, x, y, i, j, xDiff, yDiff, chnl, color, offset = 0, origPix, ratioX = this.rcpScaleX, ratioY = this.rcpScaleY, context = canvasEl.getContext("2d"), w4 = 4 * (w - 1), img = context.getImageData(0, 0, w, h), pixels = img.data, destImage = context.getImageData(0, 0, w2, h2), destPixels = destImage.data;
|
|
for (i = 0; i < h2; i++) {
|
|
for (j = 0; j < w2; j++) {
|
|
x = floor(ratioX * j);
|
|
y = floor(ratioY * i);
|
|
xDiff = ratioX * j - x;
|
|
yDiff = ratioY * i - y;
|
|
origPix = 4 * (y * w + x);
|
|
for (chnl = 0; chnl < 4; chnl++) {
|
|
a = pixels[origPix + chnl];
|
|
b = pixels[origPix + 4 + chnl];
|
|
c = pixels[origPix + w4 + chnl];
|
|
d = pixels[origPix + w4 + 4 + chnl];
|
|
color = a * (1 - xDiff) * (1 - yDiff) + b * xDiff * (1 - yDiff) + c * yDiff * (1 - xDiff) + d * xDiff * yDiff;
|
|
destPixels[offset++] = color;
|
|
}
|
|
}
|
|
}
|
|
return destImage;
|
|
},
|
|
hermiteFastResize: function(canvasEl, oW, oH, dW, dH) {
|
|
var ratioW = this.rcpScaleX, ratioH = this.rcpScaleY, ratioWHalf = ceil(ratioW / 2), ratioHHalf = ceil(ratioH / 2), context = canvasEl.getContext("2d"), img = context.getImageData(0, 0, oW, oH), data = img.data, img2 = context.getImageData(0, 0, dW, dH), data2 = img2.data;
|
|
for (var j = 0; j < dH; j++) {
|
|
for (var i = 0; i < dW; i++) {
|
|
var x2 = (i + j * dW) * 4, weight = 0, weights = 0, weightsAlpha = 0, gxR = 0, gxG = 0, gxB = 0, gxA = 0, centerY = (j + .5) * ratioH;
|
|
for (var yy = floor(j * ratioH); yy < (j + 1) * ratioH; yy++) {
|
|
var dy = abs(centerY - (yy + .5)) / ratioHHalf, centerX = (i + .5) * ratioW, w0 = dy * dy;
|
|
for (var xx = floor(i * ratioW); xx < (i + 1) * ratioW; xx++) {
|
|
var dx = abs(centerX - (xx + .5)) / ratioWHalf, w = sqrt(w0 + dx * dx);
|
|
if (w > 1 && w < -1) {
|
|
continue;
|
|
}
|
|
weight = 2 * w * w * w - 3 * w * w + 1;
|
|
if (weight > 0) {
|
|
dx = 4 * (xx + yy * oW);
|
|
gxA += weight * data[dx + 3];
|
|
weightsAlpha += weight;
|
|
if (data[dx + 3] < 255) {
|
|
weight = weight * data[dx + 3] / 250;
|
|
}
|
|
gxR += weight * data[dx];
|
|
gxG += weight * data[dx + 1];
|
|
gxB += weight * data[dx + 2];
|
|
weights += weight;
|
|
}
|
|
}
|
|
}
|
|
data2[x2] = gxR / weights;
|
|
data2[x2 + 1] = gxG / weights;
|
|
data2[x2 + 2] = gxB / weights;
|
|
data2[x2 + 3] = gxA / weightsAlpha;
|
|
}
|
|
}
|
|
return img2;
|
|
},
|
|
toObject: function() {
|
|
return {
|
|
type: this.type,
|
|
scaleX: this.scaleX,
|
|
scaleY: this.scaleY,
|
|
resizeType: this.resizeType,
|
|
lanczosLobes: this.lanczosLobes
|
|
};
|
|
}
|
|
});
|
|
fabric.Image.filters.Resize.fromObject = function(object) {
|
|
return new fabric.Image.filters.Resize(object);
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), extend = fabric.util.object.extend, clone = fabric.util.object.clone, toFixed = fabric.util.toFixed, supportsLineDash = fabric.StaticCanvas.supports("setLineDash"), NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS;
|
|
if (fabric.Text) {
|
|
fabric.warn("fabric.Text is already defined");
|
|
return;
|
|
}
|
|
var stateProperties = fabric.Object.prototype.stateProperties.concat();
|
|
stateProperties.push("fontFamily", "fontWeight", "fontSize", "text", "textDecoration", "textAlign", "fontStyle", "lineHeight", "textBackgroundColor");
|
|
fabric.Text = fabric.util.createClass(fabric.Object, {
|
|
_dimensionAffectingProps: {
|
|
fontSize: true,
|
|
fontWeight: true,
|
|
fontFamily: true,
|
|
fontStyle: true,
|
|
lineHeight: true,
|
|
stroke: true,
|
|
strokeWidth: true,
|
|
text: true,
|
|
textAlign: true
|
|
},
|
|
_reNewline: /\r?\n/,
|
|
_reSpacesAndTabs: /[ \t\r]+/g,
|
|
type: "text",
|
|
fontSize: 40,
|
|
fontWeight: "normal",
|
|
fontFamily: "Times New Roman",
|
|
textDecoration: "",
|
|
textAlign: "left",
|
|
fontStyle: "",
|
|
lineHeight: 1.16,
|
|
textBackgroundColor: "",
|
|
stateProperties: stateProperties,
|
|
stroke: null,
|
|
shadow: null,
|
|
_fontSizeFraction: .25,
|
|
_fontSizeMult: 1.13,
|
|
initialize: function(text, options) {
|
|
options = options || {};
|
|
this.text = text;
|
|
this.__skipDimension = true;
|
|
this.setOptions(options);
|
|
this.__skipDimension = false;
|
|
this._initDimensions();
|
|
},
|
|
_initDimensions: function(ctx) {
|
|
if (this.__skipDimension) {
|
|
return;
|
|
}
|
|
if (!ctx) {
|
|
ctx = fabric.util.createCanvasElement().getContext("2d");
|
|
this._setTextStyles(ctx);
|
|
}
|
|
this._textLines = this._splitTextIntoLines();
|
|
this._clearCache();
|
|
this.width = this._getTextWidth(ctx);
|
|
this.height = this._getTextHeight(ctx);
|
|
},
|
|
toString: function() {
|
|
return "#<fabric.Text (" + this.complexity() + '): { "text": "' + this.text + '", "fontFamily": "' + this.fontFamily + '" }>';
|
|
},
|
|
_render: function(ctx) {
|
|
this.clipTo && fabric.util.clipContext(this, ctx);
|
|
this._setOpacity(ctx);
|
|
this._setShadow(ctx);
|
|
this._setupCompositeOperation(ctx);
|
|
this._renderTextBackground(ctx);
|
|
this._setStrokeStyles(ctx);
|
|
this._setFillStyles(ctx);
|
|
this._renderText(ctx);
|
|
this._renderTextDecoration(ctx);
|
|
this.clipTo && ctx.restore();
|
|
},
|
|
_renderText: function(ctx) {
|
|
this._translateForTextAlign(ctx);
|
|
this._renderTextFill(ctx);
|
|
this._renderTextStroke(ctx);
|
|
this._translateForTextAlign(ctx, true);
|
|
},
|
|
_translateForTextAlign: function(ctx, back) {
|
|
if (this.textAlign !== "left" && this.textAlign !== "justify") {
|
|
var sign = back ? -1 : 1;
|
|
ctx.translate(this.textAlign === "center" ? sign * this.width / 2 : sign * this.width, 0);
|
|
}
|
|
},
|
|
_setTextStyles: function(ctx) {
|
|
ctx.textBaseline = "alphabetic";
|
|
if (!this.skipTextAlign) {
|
|
ctx.textAlign = this.textAlign;
|
|
}
|
|
ctx.font = this._getFontDeclaration();
|
|
},
|
|
_getTextHeight: function() {
|
|
return this._getHeightOfSingleLine() + (this._textLines.length - 1) * this._getHeightOfLine();
|
|
},
|
|
_getTextWidth: function(ctx) {
|
|
var maxWidth = this._getLineWidth(ctx, 0);
|
|
for (var i = 1, len = this._textLines.length; i < len; i++) {
|
|
var currentLineWidth = this._getLineWidth(ctx, i);
|
|
if (currentLineWidth > maxWidth) {
|
|
maxWidth = currentLineWidth;
|
|
}
|
|
}
|
|
return maxWidth;
|
|
},
|
|
_getNonTransformedDimensions: function() {
|
|
return {
|
|
x: this.width,
|
|
y: this.height
|
|
};
|
|
},
|
|
_renderChars: function(method, ctx, chars, left, top) {
|
|
var shortM = method.slice(0, -4);
|
|
if (this[shortM].toLive) {
|
|
var offsetX = -this.width / 2 + this[shortM].offsetX || 0, offsetY = -this.height / 2 + this[shortM].offsetY || 0;
|
|
ctx.save();
|
|
ctx.translate(offsetX, offsetY);
|
|
left -= offsetX;
|
|
top -= offsetY;
|
|
}
|
|
ctx[method](chars, left, top);
|
|
this[shortM].toLive && ctx.restore();
|
|
},
|
|
_renderTextLine: function(method, ctx, line, left, top, lineIndex) {
|
|
top -= this.fontSize * this._fontSizeFraction;
|
|
var lineWidth = this._getLineWidth(ctx, lineIndex);
|
|
if (this.textAlign !== "justify" || this.width < lineWidth) {
|
|
this._renderChars(method, ctx, line, left, top, lineIndex);
|
|
return;
|
|
}
|
|
var words = line.split(/\s+/), charOffset = 0, wordsWidth = this._getWidthOfWords(ctx, line, lineIndex, 0), widthDiff = this.width - wordsWidth, numSpaces = words.length - 1, spaceWidth = numSpaces > 0 ? widthDiff / numSpaces : 0, leftOffset = 0, word;
|
|
for (var i = 0, len = words.length; i < len; i++) {
|
|
while (line[charOffset] === " " && charOffset < line.length) {
|
|
charOffset++;
|
|
}
|
|
word = words[i];
|
|
this._renderChars(method, ctx, word, left + leftOffset, top, lineIndex, charOffset);
|
|
leftOffset += this._getWidthOfWords(ctx, word, lineIndex, charOffset) + spaceWidth;
|
|
charOffset += word.length;
|
|
}
|
|
},
|
|
_getWidthOfWords: function(ctx, line) {
|
|
return ctx.measureText(line.replace(/\s+/g, "")).width;
|
|
},
|
|
_getLeftOffset: function() {
|
|
return -this.width / 2;
|
|
},
|
|
_getTopOffset: function() {
|
|
return -this.height / 2;
|
|
},
|
|
isEmptyStyles: function() {
|
|
return true;
|
|
},
|
|
_renderTextFill: function(ctx) {
|
|
if (!this.fill && this.isEmptyStyles()) {
|
|
return;
|
|
}
|
|
var lineHeights = 0;
|
|
for (var i = 0, len = this._textLines.length; i < len; i++) {
|
|
var heightOfLine = this._getHeightOfLine(ctx, i), maxHeight = heightOfLine / this.lineHeight;
|
|
this._renderTextLine("fillText", ctx, this._textLines[i], this._getLeftOffset(), this._getTopOffset() + lineHeights + maxHeight, i);
|
|
lineHeights += heightOfLine;
|
|
}
|
|
},
|
|
_renderTextStroke: function(ctx) {
|
|
if ((!this.stroke || this.strokeWidth === 0) && this.isEmptyStyles()) {
|
|
return;
|
|
}
|
|
var lineHeights = 0;
|
|
if (this.shadow && !this.shadow.affectStroke) {
|
|
this._removeShadow(ctx);
|
|
}
|
|
ctx.save();
|
|
if (this.strokeDashArray) {
|
|
if (1 & this.strokeDashArray.length) {
|
|
this.strokeDashArray.push.apply(this.strokeDashArray, this.strokeDashArray);
|
|
}
|
|
supportsLineDash && ctx.setLineDash(this.strokeDashArray);
|
|
}
|
|
ctx.beginPath();
|
|
for (var i = 0, len = this._textLines.length; i < len; i++) {
|
|
var heightOfLine = this._getHeightOfLine(ctx, i), maxHeight = heightOfLine / this.lineHeight;
|
|
this._renderTextLine("strokeText", ctx, this._textLines[i], this._getLeftOffset(), this._getTopOffset() + lineHeights + maxHeight, i);
|
|
lineHeights += heightOfLine;
|
|
}
|
|
ctx.closePath();
|
|
ctx.restore();
|
|
},
|
|
_getHeightOfLine: function() {
|
|
return this._getHeightOfSingleLine() * this.lineHeight;
|
|
},
|
|
_getHeightOfSingleLine: function() {
|
|
return this.fontSize * this._fontSizeMult;
|
|
},
|
|
_renderTextBackground: function(ctx) {
|
|
this._renderTextBoxBackground(ctx);
|
|
this._renderTextLinesBackground(ctx);
|
|
},
|
|
_renderTextBoxBackground: function(ctx) {
|
|
if (!this.backgroundColor) {
|
|
return;
|
|
}
|
|
ctx.fillStyle = this.backgroundColor;
|
|
ctx.fillRect(this._getLeftOffset(), this._getTopOffset(), this.width, this.height);
|
|
this._removeShadow(ctx);
|
|
},
|
|
_renderTextLinesBackground: function(ctx) {
|
|
if (!this.textBackgroundColor) {
|
|
return;
|
|
}
|
|
var lineTopOffset = 0, heightOfLine, lineWidth, lineLeftOffset;
|
|
ctx.fillStyle = this.textBackgroundColor;
|
|
for (var i = 0, len = this._textLines.length; i < len; i++) {
|
|
heightOfLine = this._getHeightOfLine(ctx, i);
|
|
lineWidth = this._getLineWidth(ctx, i);
|
|
if (lineWidth > 0) {
|
|
lineLeftOffset = this._getLineLeftOffset(lineWidth);
|
|
ctx.fillRect(this._getLeftOffset() + lineLeftOffset, this._getTopOffset() + lineTopOffset, lineWidth, heightOfLine / this.lineHeight);
|
|
}
|
|
lineTopOffset += heightOfLine;
|
|
}
|
|
this._removeShadow(ctx);
|
|
},
|
|
_getLineLeftOffset: function(lineWidth) {
|
|
if (this.textAlign === "center") {
|
|
return (this.width - lineWidth) / 2;
|
|
}
|
|
if (this.textAlign === "right") {
|
|
return this.width - lineWidth;
|
|
}
|
|
return 0;
|
|
},
|
|
_clearCache: function() {
|
|
this.__lineWidths = [];
|
|
this.__lineHeights = [];
|
|
},
|
|
_shouldClearCache: function() {
|
|
var shouldClear = false;
|
|
if (this._forceClearCache) {
|
|
this._forceClearCache = false;
|
|
return true;
|
|
}
|
|
for (var prop in this._dimensionAffectingProps) {
|
|
if (this["__" + prop] !== this[prop]) {
|
|
this["__" + prop] = this[prop];
|
|
shouldClear = true;
|
|
}
|
|
}
|
|
return shouldClear;
|
|
},
|
|
_getLineWidth: function(ctx, lineIndex) {
|
|
if (this.__lineWidths[lineIndex]) {
|
|
return this.__lineWidths[lineIndex] === -1 ? this.width : this.__lineWidths[lineIndex];
|
|
}
|
|
var width, wordCount, line = this._textLines[lineIndex];
|
|
if (line === "") {
|
|
width = 0;
|
|
} else {
|
|
width = this._measureLine(ctx, lineIndex);
|
|
}
|
|
this.__lineWidths[lineIndex] = width;
|
|
if (width && this.textAlign === "justify") {
|
|
wordCount = line.split(/\s+/);
|
|
if (wordCount.length > 1) {
|
|
this.__lineWidths[lineIndex] = -1;
|
|
}
|
|
}
|
|
return width;
|
|
},
|
|
_measureLine: function(ctx, lineIndex) {
|
|
return ctx.measureText(this._textLines[lineIndex]).width;
|
|
},
|
|
_renderTextDecoration: function(ctx) {
|
|
if (!this.textDecoration) {
|
|
return;
|
|
}
|
|
var halfOfVerticalBox = this.height / 2, _this = this, offsets = [];
|
|
function renderLinesAtOffset(offsets) {
|
|
var i, lineHeight = 0, len, j, oLen, lineWidth, lineLeftOffset, heightOfLine;
|
|
for (i = 0, len = _this._textLines.length; i < len; i++) {
|
|
lineWidth = _this._getLineWidth(ctx, i), lineLeftOffset = _this._getLineLeftOffset(lineWidth),
|
|
heightOfLine = _this._getHeightOfLine(ctx, i);
|
|
for (j = 0, oLen = offsets.length; j < oLen; j++) {
|
|
ctx.fillRect(_this._getLeftOffset() + lineLeftOffset, lineHeight + (_this._fontSizeMult - 1 + offsets[j]) * _this.fontSize - halfOfVerticalBox, lineWidth, _this.fontSize / 15);
|
|
}
|
|
lineHeight += heightOfLine;
|
|
}
|
|
}
|
|
if (this.textDecoration.indexOf("underline") > -1) {
|
|
offsets.push(.85);
|
|
}
|
|
if (this.textDecoration.indexOf("line-through") > -1) {
|
|
offsets.push(.43);
|
|
}
|
|
if (this.textDecoration.indexOf("overline") > -1) {
|
|
offsets.push(-.12);
|
|
}
|
|
if (offsets.length > 0) {
|
|
renderLinesAtOffset(offsets);
|
|
}
|
|
},
|
|
_getFontDeclaration: function() {
|
|
return [ fabric.isLikelyNode ? this.fontWeight : this.fontStyle, fabric.isLikelyNode ? this.fontStyle : this.fontWeight, this.fontSize + "px", fabric.isLikelyNode ? '"' + this.fontFamily + '"' : this.fontFamily ].join(" ");
|
|
},
|
|
render: function(ctx, noTransform) {
|
|
if (!this.visible) {
|
|
return;
|
|
}
|
|
ctx.save();
|
|
this._setTextStyles(ctx);
|
|
if (this._shouldClearCache()) {
|
|
this._initDimensions(ctx);
|
|
}
|
|
this.drawSelectionBackground(ctx);
|
|
if (!noTransform) {
|
|
this.transform(ctx);
|
|
}
|
|
if (this.transformMatrix) {
|
|
ctx.transform.apply(ctx, this.transformMatrix);
|
|
}
|
|
if (this.group && this.group.type === "path-group") {
|
|
ctx.translate(this.left, this.top);
|
|
}
|
|
this._render(ctx);
|
|
ctx.restore();
|
|
},
|
|
_splitTextIntoLines: function() {
|
|
return this.text.split(this._reNewline);
|
|
},
|
|
toObject: function(propertiesToInclude) {
|
|
var object = extend(this.callSuper("toObject", propertiesToInclude), {
|
|
text: this.text,
|
|
fontSize: this.fontSize,
|
|
fontWeight: this.fontWeight,
|
|
fontFamily: this.fontFamily,
|
|
fontStyle: this.fontStyle,
|
|
lineHeight: this.lineHeight,
|
|
textDecoration: this.textDecoration,
|
|
textAlign: this.textAlign,
|
|
textBackgroundColor: this.textBackgroundColor
|
|
});
|
|
if (!this.includeDefaultValues) {
|
|
this._removeDefaultValues(object);
|
|
}
|
|
return object;
|
|
},
|
|
toSVG: function(reviver) {
|
|
var markup = this._createBaseSVGMarkup(), offsets = this._getSVGLeftTopOffsets(this.ctx), textAndBg = this._getSVGTextAndBg(offsets.textTop, offsets.textLeft);
|
|
this._wrapSVGTextAndBg(markup, textAndBg);
|
|
return reviver ? reviver(markup.join("")) : markup.join("");
|
|
},
|
|
_getSVGLeftTopOffsets: function(ctx) {
|
|
var lineTop = this._getHeightOfLine(ctx, 0), textLeft = -this.width / 2, textTop = 0;
|
|
return {
|
|
textLeft: textLeft + (this.group && this.group.type === "path-group" ? this.left : 0),
|
|
textTop: textTop + (this.group && this.group.type === "path-group" ? -this.top : 0),
|
|
lineTop: lineTop
|
|
};
|
|
},
|
|
_wrapSVGTextAndBg: function(markup, textAndBg) {
|
|
var noShadow = true, filter = this.getSvgFilter(), style = filter === "" ? "" : ' style="' + filter + '"';
|
|
markup.push("\t<g ", this.getSvgId(), 'transform="', this.getSvgTransform(), this.getSvgTransformMatrix(), '"', style, ">\n", textAndBg.textBgRects.join(""), "\t\t<text ", this.fontFamily ? 'font-family="' + this.fontFamily.replace(/"/g, "'") + '" ' : "", this.fontSize ? 'font-size="' + this.fontSize + '" ' : "", this.fontStyle ? 'font-style="' + this.fontStyle + '" ' : "", this.fontWeight ? 'font-weight="' + this.fontWeight + '" ' : "", this.textDecoration ? 'text-decoration="' + this.textDecoration + '" ' : "", 'style="', this.getSvgStyles(noShadow), '" >\n', textAndBg.textSpans.join(""), "\t\t</text>\n", "\t</g>\n");
|
|
},
|
|
_getSVGTextAndBg: function(textTopOffset, textLeftOffset) {
|
|
var textSpans = [], textBgRects = [], height = 0;
|
|
this._setSVGBg(textBgRects);
|
|
for (var i = 0, len = this._textLines.length; i < len; i++) {
|
|
if (this.textBackgroundColor) {
|
|
this._setSVGTextLineBg(textBgRects, i, textLeftOffset, textTopOffset, height);
|
|
}
|
|
this._setSVGTextLineText(i, textSpans, height, textLeftOffset, textTopOffset, textBgRects);
|
|
height += this._getHeightOfLine(this.ctx, i);
|
|
}
|
|
return {
|
|
textSpans: textSpans,
|
|
textBgRects: textBgRects
|
|
};
|
|
},
|
|
_setSVGTextLineText: function(i, textSpans, height, textLeftOffset, textTopOffset) {
|
|
var yPos = this.fontSize * (this._fontSizeMult - this._fontSizeFraction) - textTopOffset + height - this.height / 2;
|
|
if (this.textAlign === "justify") {
|
|
this._setSVGTextLineJustifed(i, textSpans, yPos, textLeftOffset);
|
|
return;
|
|
}
|
|
textSpans.push('\t\t\t<tspan x="', toFixed(textLeftOffset + this._getLineLeftOffset(this._getLineWidth(this.ctx, i)), NUM_FRACTION_DIGITS), '" ', 'y="', toFixed(yPos, NUM_FRACTION_DIGITS), '" ', this._getFillAttributes(this.fill), ">", fabric.util.string.escapeXml(this._textLines[i]), "</tspan>\n");
|
|
},
|
|
_setSVGTextLineJustifed: function(i, textSpans, yPos, textLeftOffset) {
|
|
var ctx = fabric.util.createCanvasElement().getContext("2d");
|
|
this._setTextStyles(ctx);
|
|
var line = this._textLines[i], words = line.split(/\s+/), wordsWidth = this._getWidthOfWords(ctx, line), widthDiff = this.width - wordsWidth, numSpaces = words.length - 1, spaceWidth = numSpaces > 0 ? widthDiff / numSpaces : 0, word, attributes = this._getFillAttributes(this.fill), len;
|
|
textLeftOffset += this._getLineLeftOffset(this._getLineWidth(ctx, i));
|
|
for (i = 0, len = words.length; i < len; i++) {
|
|
word = words[i];
|
|
textSpans.push('\t\t\t<tspan x="', toFixed(textLeftOffset, NUM_FRACTION_DIGITS), '" ', 'y="', toFixed(yPos, NUM_FRACTION_DIGITS), '" ', attributes, ">", fabric.util.string.escapeXml(word), "</tspan>\n");
|
|
textLeftOffset += this._getWidthOfWords(ctx, word) + spaceWidth;
|
|
}
|
|
},
|
|
_setSVGTextLineBg: function(textBgRects, i, textLeftOffset, textTopOffset, height) {
|
|
textBgRects.push("\t\t<rect ", this._getFillAttributes(this.textBackgroundColor), ' x="', toFixed(textLeftOffset + this._getLineLeftOffset(this._getLineWidth(this.ctx, i)), NUM_FRACTION_DIGITS), '" y="', toFixed(height - this.height / 2, NUM_FRACTION_DIGITS), '" width="', toFixed(this._getLineWidth(this.ctx, i), NUM_FRACTION_DIGITS), '" height="', toFixed(this._getHeightOfLine(this.ctx, i) / this.lineHeight, NUM_FRACTION_DIGITS), '"></rect>\n');
|
|
},
|
|
_setSVGBg: function(textBgRects) {
|
|
if (this.backgroundColor) {
|
|
textBgRects.push("\t\t<rect ", this._getFillAttributes(this.backgroundColor), ' x="', toFixed(-this.width / 2, NUM_FRACTION_DIGITS), '" y="', toFixed(-this.height / 2, NUM_FRACTION_DIGITS), '" width="', toFixed(this.width, NUM_FRACTION_DIGITS), '" height="', toFixed(this.height, NUM_FRACTION_DIGITS), '"></rect>\n');
|
|
}
|
|
},
|
|
_getFillAttributes: function(value) {
|
|
var fillColor = value && typeof value === "string" ? new fabric.Color(value) : "";
|
|
if (!fillColor || !fillColor.getSource() || fillColor.getAlpha() === 1) {
|
|
return 'fill="' + value + '"';
|
|
}
|
|
return 'opacity="' + fillColor.getAlpha() + '" fill="' + fillColor.setAlpha(1).toRgb() + '"';
|
|
},
|
|
_set: function(key, value) {
|
|
this.callSuper("_set", key, value);
|
|
if (key in this._dimensionAffectingProps) {
|
|
this._initDimensions();
|
|
this.setCoords();
|
|
}
|
|
},
|
|
complexity: function() {
|
|
return 1;
|
|
}
|
|
});
|
|
fabric.Text.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat("x y dx dy font-family font-style font-weight font-size text-decoration text-anchor".split(" "));
|
|
fabric.Text.DEFAULT_SVG_FONT_SIZE = 16;
|
|
fabric.Text.fromElement = function(element, options) {
|
|
if (!element) {
|
|
return null;
|
|
}
|
|
var parsedAttributes = fabric.parseAttributes(element, fabric.Text.ATTRIBUTE_NAMES);
|
|
options = fabric.util.object.extend(options ? fabric.util.object.clone(options) : {}, parsedAttributes);
|
|
options.top = options.top || 0;
|
|
options.left = options.left || 0;
|
|
if ("dx" in parsedAttributes) {
|
|
options.left += parsedAttributes.dx;
|
|
}
|
|
if ("dy" in parsedAttributes) {
|
|
options.top += parsedAttributes.dy;
|
|
}
|
|
if (!("fontSize" in options)) {
|
|
options.fontSize = fabric.Text.DEFAULT_SVG_FONT_SIZE;
|
|
}
|
|
if (!options.originX) {
|
|
options.originX = "left";
|
|
}
|
|
var textContent = "";
|
|
if (!("textContent" in element)) {
|
|
if ("firstChild" in element && element.firstChild !== null) {
|
|
if ("data" in element.firstChild && element.firstChild.data !== null) {
|
|
textContent = element.firstChild.data;
|
|
}
|
|
}
|
|
} else {
|
|
textContent = element.textContent;
|
|
}
|
|
textContent = textContent.replace(/^\s+|\s+$|\n+/g, "").replace(/\s+/g, " ");
|
|
var text = new fabric.Text(textContent, options), textHeightScaleFactor = text.getHeight() / text.height, lineHeightDiff = (text.height + text.strokeWidth) * text.lineHeight - text.height, scaledDiff = lineHeightDiff * textHeightScaleFactor, textHeight = text.getHeight() + scaledDiff, offX = 0;
|
|
if (text.originX === "left") {
|
|
offX = text.getWidth() / 2;
|
|
}
|
|
if (text.originX === "right") {
|
|
offX = -text.getWidth() / 2;
|
|
}
|
|
text.set({
|
|
left: text.getLeft() + offX,
|
|
top: text.getTop() - textHeight / 2 + text.fontSize * (.18 + text._fontSizeFraction) / text.lineHeight
|
|
});
|
|
return text;
|
|
};
|
|
fabric.Text.fromObject = function(object) {
|
|
return new fabric.Text(object.text, clone(object));
|
|
};
|
|
fabric.util.createAccessors(fabric.Text);
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function() {
|
|
var clone = fabric.util.object.clone;
|
|
fabric.IText = fabric.util.createClass(fabric.Text, fabric.Observable, {
|
|
type: "i-text",
|
|
selectionStart: 0,
|
|
selectionEnd: 0,
|
|
selectionColor: "rgba(17,119,255,0.3)",
|
|
isEditing: false,
|
|
editable: true,
|
|
editingBorderColor: "rgba(102,153,255,0.25)",
|
|
cursorWidth: 2,
|
|
cursorColor: "#333",
|
|
cursorDelay: 1e3,
|
|
cursorDuration: 600,
|
|
styles: null,
|
|
caching: true,
|
|
_reSpace: /\s|\n/,
|
|
_currentCursorOpacity: 0,
|
|
_selectionDirection: null,
|
|
_abortCursorAnimation: false,
|
|
__widthOfSpace: [],
|
|
initialize: function(text, options) {
|
|
this.styles = options ? options.styles || {} : {};
|
|
this.callSuper("initialize", text, options);
|
|
this.initBehavior();
|
|
},
|
|
_clearCache: function() {
|
|
this.callSuper("_clearCache");
|
|
this.__widthOfSpace = [];
|
|
},
|
|
isEmptyStyles: function() {
|
|
if (!this.styles) {
|
|
return true;
|
|
}
|
|
var obj = this.styles;
|
|
for (var p1 in obj) {
|
|
for (var p2 in obj[p1]) {
|
|
for (var p3 in obj[p1][p2]) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
},
|
|
setSelectionStart: function(index) {
|
|
index = Math.max(index, 0);
|
|
this._updateAndFire("selectionStart", index);
|
|
},
|
|
setSelectionEnd: function(index) {
|
|
index = Math.min(index, this.text.length);
|
|
this._updateAndFire("selectionEnd", index);
|
|
},
|
|
_updateAndFire: function(property, index) {
|
|
if (this[property] !== index) {
|
|
this._fireSelectionChanged();
|
|
this[property] = index;
|
|
}
|
|
this._updateTextarea();
|
|
},
|
|
_fireSelectionChanged: function() {
|
|
this.fire("selection:changed");
|
|
this.canvas && this.canvas.fire("text:selection:changed", {
|
|
target: this
|
|
});
|
|
},
|
|
getSelectionStyles: function(startIndex, endIndex) {
|
|
if (arguments.length === 2) {
|
|
var styles = [];
|
|
for (var i = startIndex; i < endIndex; i++) {
|
|
styles.push(this.getSelectionStyles(i));
|
|
}
|
|
return styles;
|
|
}
|
|
var loc = this.get2DCursorLocation(startIndex), style = this._getStyleDeclaration(loc.lineIndex, loc.charIndex);
|
|
return style || {};
|
|
},
|
|
setSelectionStyles: function(styles) {
|
|
if (this.selectionStart === this.selectionEnd) {
|
|
this._extendStyles(this.selectionStart, styles);
|
|
} else {
|
|
for (var i = this.selectionStart; i < this.selectionEnd; i++) {
|
|
this._extendStyles(i, styles);
|
|
}
|
|
}
|
|
this._forceClearCache = true;
|
|
return this;
|
|
},
|
|
_extendStyles: function(index, styles) {
|
|
var loc = this.get2DCursorLocation(index);
|
|
if (!this._getLineStyle(loc.lineIndex)) {
|
|
this._setLineStyle(loc.lineIndex, {});
|
|
}
|
|
if (!this._getStyleDeclaration(loc.lineIndex, loc.charIndex)) {
|
|
this._setStyleDeclaration(loc.lineIndex, loc.charIndex, {});
|
|
}
|
|
fabric.util.object.extend(this._getStyleDeclaration(loc.lineIndex, loc.charIndex), styles);
|
|
},
|
|
_render: function(ctx) {
|
|
this.oldWidth = this.width;
|
|
this.oldHeight = this.height;
|
|
this.callSuper("_render", ctx);
|
|
this.ctx = ctx;
|
|
this.isEditing && this.renderCursorOrSelection();
|
|
},
|
|
renderCursorOrSelection: function() {
|
|
if (!this.active || !this.isEditing) {
|
|
return;
|
|
}
|
|
var chars = this.text.split(""), boundaries, ctx;
|
|
if (this.canvas.contextTop) {
|
|
ctx = this.canvas.contextTop;
|
|
ctx.save();
|
|
ctx.transform.apply(ctx, this.canvas.viewportTransform);
|
|
this.transform(ctx);
|
|
this.transformMatrix && ctx.transform.apply(ctx, this.transformMatrix);
|
|
this._clearTextArea(ctx);
|
|
} else {
|
|
ctx = this.ctx;
|
|
ctx.save();
|
|
}
|
|
if (this.selectionStart === this.selectionEnd) {
|
|
boundaries = this._getCursorBoundaries(chars, "cursor");
|
|
this.renderCursor(boundaries, ctx);
|
|
} else {
|
|
boundaries = this._getCursorBoundaries(chars, "selection");
|
|
this.renderSelection(chars, boundaries, ctx);
|
|
}
|
|
ctx.restore();
|
|
},
|
|
_clearTextArea: function(ctx) {
|
|
var width = this.oldWidth + 4, height = this.oldHeight + 4;
|
|
ctx.clearRect(-width / 2, -height / 2, width, height);
|
|
},
|
|
get2DCursorLocation: function(selectionStart) {
|
|
if (typeof selectionStart === "undefined") {
|
|
selectionStart = this.selectionStart;
|
|
}
|
|
var len = this._textLines.length;
|
|
for (var i = 0; i < len; i++) {
|
|
if (selectionStart <= this._textLines[i].length) {
|
|
return {
|
|
lineIndex: i,
|
|
charIndex: selectionStart
|
|
};
|
|
}
|
|
selectionStart -= this._textLines[i].length + 1;
|
|
}
|
|
return {
|
|
lineIndex: i - 1,
|
|
charIndex: this._textLines[i - 1].length < selectionStart ? this._textLines[i - 1].length : selectionStart
|
|
};
|
|
},
|
|
getCurrentCharStyle: function(lineIndex, charIndex) {
|
|
var style = this._getStyleDeclaration(lineIndex, charIndex === 0 ? 0 : charIndex - 1);
|
|
return {
|
|
fontSize: style && style.fontSize || this.fontSize,
|
|
fill: style && style.fill || this.fill,
|
|
textBackgroundColor: style && style.textBackgroundColor || this.textBackgroundColor,
|
|
textDecoration: style && style.textDecoration || this.textDecoration,
|
|
fontFamily: style && style.fontFamily || this.fontFamily,
|
|
fontWeight: style && style.fontWeight || this.fontWeight,
|
|
fontStyle: style && style.fontStyle || this.fontStyle,
|
|
stroke: style && style.stroke || this.stroke,
|
|
strokeWidth: style && style.strokeWidth || this.strokeWidth
|
|
};
|
|
},
|
|
getCurrentCharFontSize: function(lineIndex, charIndex) {
|
|
var style = this._getStyleDeclaration(lineIndex, charIndex === 0 ? 0 : charIndex - 1);
|
|
return style && style.fontSize ? style.fontSize : this.fontSize;
|
|
},
|
|
getCurrentCharColor: function(lineIndex, charIndex) {
|
|
var style = this._getStyleDeclaration(lineIndex, charIndex === 0 ? 0 : charIndex - 1);
|
|
return style && style.fill ? style.fill : this.cursorColor;
|
|
},
|
|
_getCursorBoundaries: function(chars, typeOfBoundaries) {
|
|
var left = Math.round(this._getLeftOffset()), top = this._getTopOffset(), offsets = this._getCursorBoundariesOffsets(chars, typeOfBoundaries);
|
|
return {
|
|
left: left,
|
|
top: top,
|
|
leftOffset: offsets.left + offsets.lineLeft,
|
|
topOffset: offsets.top
|
|
};
|
|
},
|
|
_getCursorBoundariesOffsets: function(chars, typeOfBoundaries) {
|
|
var lineLeftOffset = 0, lineIndex = 0, charIndex = 0, topOffset = 0, leftOffset = 0;
|
|
for (var i = 0; i < this.selectionStart; i++) {
|
|
if (chars[i] === "\n") {
|
|
leftOffset = 0;
|
|
topOffset += this._getHeightOfLine(this.ctx, lineIndex);
|
|
lineIndex++;
|
|
charIndex = 0;
|
|
} else {
|
|
leftOffset += this._getWidthOfChar(this.ctx, chars[i], lineIndex, charIndex);
|
|
charIndex++;
|
|
}
|
|
lineLeftOffset = this._getLineLeftOffset(this._getLineWidth(this.ctx, lineIndex));
|
|
}
|
|
if (typeOfBoundaries === "cursor") {
|
|
topOffset += (1 - this._fontSizeFraction) * this._getHeightOfLine(this.ctx, lineIndex) / this.lineHeight - this.getCurrentCharFontSize(lineIndex, charIndex) * (1 - this._fontSizeFraction);
|
|
}
|
|
return {
|
|
top: topOffset,
|
|
left: leftOffset,
|
|
lineLeft: lineLeftOffset
|
|
};
|
|
},
|
|
renderCursor: function(boundaries, ctx) {
|
|
var cursorLocation = this.get2DCursorLocation(), lineIndex = cursorLocation.lineIndex, charIndex = cursorLocation.charIndex, charHeight = this.getCurrentCharFontSize(lineIndex, charIndex), leftOffset = lineIndex === 0 && charIndex === 0 ? this._getLineLeftOffset(this._getLineWidth(ctx, lineIndex)) : boundaries.leftOffset, multiplier = this.scaleX * this.canvas.getZoom(), cursorWidth = this.cursorWidth / multiplier;
|
|
ctx.fillStyle = this.getCurrentCharColor(lineIndex, charIndex);
|
|
ctx.globalAlpha = this.__isMousedown ? 1 : this._currentCursorOpacity;
|
|
ctx.fillRect(boundaries.left + leftOffset - cursorWidth / 2, boundaries.top + boundaries.topOffset, cursorWidth, charHeight);
|
|
},
|
|
renderSelection: function(chars, boundaries, ctx) {
|
|
ctx.fillStyle = this.selectionColor;
|
|
var start = this.get2DCursorLocation(this.selectionStart), end = this.get2DCursorLocation(this.selectionEnd), startLine = start.lineIndex, endLine = end.lineIndex;
|
|
for (var i = startLine; i <= endLine; i++) {
|
|
var lineOffset = this._getLineLeftOffset(this._getLineWidth(ctx, i)) || 0, lineHeight = this._getHeightOfLine(this.ctx, i), realLineHeight = 0, boxWidth = 0, line = this._textLines[i];
|
|
if (i === startLine) {
|
|
for (var j = 0, len = line.length; j < len; j++) {
|
|
if (j >= start.charIndex && (i !== endLine || j < end.charIndex)) {
|
|
boxWidth += this._getWidthOfChar(ctx, line[j], i, j);
|
|
}
|
|
if (j < start.charIndex) {
|
|
lineOffset += this._getWidthOfChar(ctx, line[j], i, j);
|
|
}
|
|
}
|
|
} else if (i > startLine && i < endLine) {
|
|
boxWidth += this._getLineWidth(ctx, i) || 5;
|
|
} else if (i === endLine) {
|
|
for (var j2 = 0, j2len = end.charIndex; j2 < j2len; j2++) {
|
|
boxWidth += this._getWidthOfChar(ctx, line[j2], i, j2);
|
|
}
|
|
}
|
|
realLineHeight = lineHeight;
|
|
if (this.lineHeight < 1 || i === endLine && this.lineHeight > 1) {
|
|
lineHeight /= this.lineHeight;
|
|
}
|
|
ctx.fillRect(boundaries.left + lineOffset, boundaries.top + boundaries.topOffset, boxWidth, lineHeight);
|
|
boundaries.topOffset += realLineHeight;
|
|
}
|
|
},
|
|
_renderChars: function(method, ctx, line, left, top, lineIndex, charOffset) {
|
|
if (this.isEmptyStyles()) {
|
|
return this._renderCharsFast(method, ctx, line, left, top);
|
|
}
|
|
charOffset = charOffset || 0;
|
|
this.skipTextAlign = true;
|
|
left -= this.textAlign === "center" ? this.width / 2 : this.textAlign === "right" ? this.width : 0;
|
|
var lineHeight = this._getHeightOfLine(ctx, lineIndex), lineLeftOffset = this._getLineLeftOffset(this._getLineWidth(ctx, lineIndex)), prevStyle, thisStyle, charsToRender = "";
|
|
left += lineLeftOffset || 0;
|
|
ctx.save();
|
|
top -= lineHeight / this.lineHeight * this._fontSizeFraction;
|
|
for (var i = charOffset, len = line.length + charOffset; i <= len; i++) {
|
|
prevStyle = prevStyle || this.getCurrentCharStyle(lineIndex, i);
|
|
thisStyle = this.getCurrentCharStyle(lineIndex, i + 1);
|
|
if (this._hasStyleChanged(prevStyle, thisStyle) || i === len) {
|
|
this._renderChar(method, ctx, lineIndex, i - 1, charsToRender, left, top, lineHeight);
|
|
charsToRender = "";
|
|
prevStyle = thisStyle;
|
|
}
|
|
charsToRender += line[i - charOffset];
|
|
}
|
|
ctx.restore();
|
|
},
|
|
_renderCharsFast: function(method, ctx, line, left, top) {
|
|
this.skipTextAlign = false;
|
|
if (method === "fillText" && this.fill) {
|
|
this.callSuper("_renderChars", method, ctx, line, left, top);
|
|
}
|
|
if (method === "strokeText" && (this.stroke && this.strokeWidth > 0 || this.skipFillStrokeCheck)) {
|
|
this.callSuper("_renderChars", method, ctx, line, left, top);
|
|
}
|
|
},
|
|
_renderChar: function(method, ctx, lineIndex, i, _char, left, top, lineHeight) {
|
|
var charWidth, charHeight, shouldFill, shouldStroke, decl = this._getStyleDeclaration(lineIndex, i), offset, textDecoration;
|
|
if (decl) {
|
|
charHeight = this._getHeightOfChar(ctx, _char, lineIndex, i);
|
|
shouldStroke = decl.stroke;
|
|
shouldFill = decl.fill;
|
|
textDecoration = decl.textDecoration;
|
|
} else {
|
|
charHeight = this.fontSize;
|
|
}
|
|
shouldStroke = (shouldStroke || this.stroke) && method === "strokeText";
|
|
shouldFill = (shouldFill || this.fill) && method === "fillText";
|
|
decl && ctx.save();
|
|
charWidth = this._applyCharStylesGetWidth(ctx, _char, lineIndex, i, decl || {});
|
|
textDecoration = textDecoration || this.textDecoration;
|
|
if (decl && decl.textBackgroundColor) {
|
|
this._removeShadow(ctx);
|
|
}
|
|
shouldFill && ctx.fillText(_char, left, top);
|
|
shouldStroke && ctx.strokeText(_char, left, top);
|
|
if (textDecoration || textDecoration !== "") {
|
|
offset = this._fontSizeFraction * lineHeight / this.lineHeight;
|
|
this._renderCharDecoration(ctx, textDecoration, left, top, offset, charWidth, charHeight);
|
|
}
|
|
decl && ctx.restore();
|
|
ctx.translate(charWidth, 0);
|
|
},
|
|
_hasStyleChanged: function(prevStyle, thisStyle) {
|
|
return prevStyle.fill !== thisStyle.fill || prevStyle.fontSize !== thisStyle.fontSize || prevStyle.textBackgroundColor !== thisStyle.textBackgroundColor || prevStyle.textDecoration !== thisStyle.textDecoration || prevStyle.fontFamily !== thisStyle.fontFamily || prevStyle.fontWeight !== thisStyle.fontWeight || prevStyle.fontStyle !== thisStyle.fontStyle || prevStyle.stroke !== thisStyle.stroke || prevStyle.strokeWidth !== thisStyle.strokeWidth;
|
|
},
|
|
_renderCharDecoration: function(ctx, textDecoration, left, top, offset, charWidth, charHeight) {
|
|
if (!textDecoration) {
|
|
return;
|
|
}
|
|
var decorationWeight = charHeight / 15, positions = {
|
|
underline: top + charHeight / 10,
|
|
"line-through": top - charHeight * (this._fontSizeFraction + this._fontSizeMult - 1) + decorationWeight,
|
|
overline: top - (this._fontSizeMult - this._fontSizeFraction) * charHeight
|
|
}, decorations = [ "underline", "line-through", "overline" ], i, decoration;
|
|
for (i = 0; i < decorations.length; i++) {
|
|
decoration = decorations[i];
|
|
if (textDecoration.indexOf(decoration) > -1) {
|
|
ctx.fillRect(left, positions[decoration], charWidth, decorationWeight);
|
|
}
|
|
}
|
|
},
|
|
_renderTextLine: function(method, ctx, line, left, top, lineIndex) {
|
|
if (!this.isEmptyStyles()) {
|
|
top += this.fontSize * (this._fontSizeFraction + .03);
|
|
}
|
|
this.callSuper("_renderTextLine", method, ctx, line, left, top, lineIndex);
|
|
},
|
|
_renderTextDecoration: function(ctx) {
|
|
if (this.isEmptyStyles()) {
|
|
return this.callSuper("_renderTextDecoration", ctx);
|
|
}
|
|
},
|
|
_renderTextLinesBackground: function(ctx) {
|
|
this.callSuper("_renderTextLinesBackground", ctx);
|
|
var lineTopOffset = 0, heightOfLine, lineWidth, lineLeftOffset, leftOffset = this._getLeftOffset(), topOffset = this._getTopOffset(), line, _char, style;
|
|
for (var i = 0, len = this._textLines.length; i < len; i++) {
|
|
heightOfLine = this._getHeightOfLine(ctx, i);
|
|
line = this._textLines[i];
|
|
if (line === "" || !this.styles || !this._getLineStyle(i)) {
|
|
lineTopOffset += heightOfLine;
|
|
continue;
|
|
}
|
|
lineWidth = this._getLineWidth(ctx, i);
|
|
lineLeftOffset = this._getLineLeftOffset(lineWidth);
|
|
for (var j = 0, jlen = line.length; j < jlen; j++) {
|
|
style = this._getStyleDeclaration(i, j);
|
|
if (!style || !style.textBackgroundColor) {
|
|
continue;
|
|
}
|
|
_char = line[j];
|
|
ctx.fillStyle = style.textBackgroundColor;
|
|
ctx.fillRect(leftOffset + lineLeftOffset + this._getWidthOfCharsAt(ctx, i, j), topOffset + lineTopOffset, this._getWidthOfChar(ctx, _char, i, j) + 1, heightOfLine / this.lineHeight);
|
|
}
|
|
lineTopOffset += heightOfLine;
|
|
}
|
|
},
|
|
_getCacheProp: function(_char, styleDeclaration) {
|
|
return _char + styleDeclaration.fontSize + styleDeclaration.fontWeight + styleDeclaration.fontStyle;
|
|
},
|
|
_getFontCache: function(fontFamily) {
|
|
if (!fabric.charWidthsCache[fontFamily]) {
|
|
fabric.charWidthsCache[fontFamily] = {};
|
|
}
|
|
return fabric.charWidthsCache[fontFamily];
|
|
},
|
|
_applyCharStylesGetWidth: function(ctx, _char, lineIndex, charIndex, decl) {
|
|
var charDecl = this._getStyleDeclaration(lineIndex, charIndex), styleDeclaration = decl && clone(decl) || clone(charDecl), width, cacheProp, charWidthsCache;
|
|
this._applyFontStyles(styleDeclaration);
|
|
charWidthsCache = this._getFontCache(styleDeclaration.fontFamily);
|
|
cacheProp = this._getCacheProp(_char, styleDeclaration);
|
|
if (!charDecl && charWidthsCache[cacheProp] && this.caching) {
|
|
return charWidthsCache[cacheProp];
|
|
}
|
|
if (typeof styleDeclaration.shadow === "string") {
|
|
styleDeclaration.shadow = new fabric.Shadow(styleDeclaration.shadow);
|
|
}
|
|
var fill = styleDeclaration.fill || this.fill;
|
|
ctx.fillStyle = fill.toLive ? fill.toLive(ctx, this) : fill;
|
|
if (styleDeclaration.stroke) {
|
|
ctx.strokeStyle = styleDeclaration.stroke && styleDeclaration.stroke.toLive ? styleDeclaration.stroke.toLive(ctx, this) : styleDeclaration.stroke;
|
|
}
|
|
ctx.lineWidth = styleDeclaration.strokeWidth || this.strokeWidth;
|
|
ctx.font = this._getFontDeclaration.call(styleDeclaration);
|
|
if (styleDeclaration.shadow) {
|
|
styleDeclaration.scaleX = this.scaleX;
|
|
styleDeclaration.scaleY = this.scaleY;
|
|
styleDeclaration.canvas = this.canvas;
|
|
this._setShadow.call(styleDeclaration, ctx);
|
|
}
|
|
if (!this.caching || !charWidthsCache[cacheProp]) {
|
|
width = ctx.measureText(_char).width;
|
|
this.caching && (charWidthsCache[cacheProp] = width);
|
|
return width;
|
|
}
|
|
return charWidthsCache[cacheProp];
|
|
},
|
|
_applyFontStyles: function(styleDeclaration) {
|
|
if (!styleDeclaration.fontFamily) {
|
|
styleDeclaration.fontFamily = this.fontFamily;
|
|
}
|
|
if (!styleDeclaration.fontSize) {
|
|
styleDeclaration.fontSize = this.fontSize;
|
|
}
|
|
if (!styleDeclaration.fontWeight) {
|
|
styleDeclaration.fontWeight = this.fontWeight;
|
|
}
|
|
if (!styleDeclaration.fontStyle) {
|
|
styleDeclaration.fontStyle = this.fontStyle;
|
|
}
|
|
},
|
|
_getStyleDeclaration: function(lineIndex, charIndex, returnCloneOrEmpty) {
|
|
if (returnCloneOrEmpty) {
|
|
return this.styles[lineIndex] && this.styles[lineIndex][charIndex] ? clone(this.styles[lineIndex][charIndex]) : {};
|
|
}
|
|
return this.styles[lineIndex] && this.styles[lineIndex][charIndex] ? this.styles[lineIndex][charIndex] : null;
|
|
},
|
|
_setStyleDeclaration: function(lineIndex, charIndex, style) {
|
|
this.styles[lineIndex][charIndex] = style;
|
|
},
|
|
_deleteStyleDeclaration: function(lineIndex, charIndex) {
|
|
delete this.styles[lineIndex][charIndex];
|
|
},
|
|
_getLineStyle: function(lineIndex) {
|
|
return this.styles[lineIndex];
|
|
},
|
|
_setLineStyle: function(lineIndex, style) {
|
|
this.styles[lineIndex] = style;
|
|
},
|
|
_deleteLineStyle: function(lineIndex) {
|
|
delete this.styles[lineIndex];
|
|
},
|
|
_getWidthOfChar: function(ctx, _char, lineIndex, charIndex) {
|
|
if (!this._isMeasuring && this.textAlign === "justify" && this._reSpacesAndTabs.test(_char)) {
|
|
return this._getWidthOfSpace(ctx, lineIndex);
|
|
}
|
|
var charWidthsCache, cacheProp, styleDeclaration = this._getStyleDeclaration(lineIndex, charIndex, true);
|
|
this._applyFontStyles(styleDeclaration);
|
|
charWidthsCache = this._getFontCache(styleDeclaration.fontFamily);
|
|
cacheProp = this._getCacheProp(_char, styleDeclaration);
|
|
if (charWidthsCache[cacheProp] && this.caching) {
|
|
return charWidthsCache[cacheProp];
|
|
} else if (ctx) {
|
|
ctx.save();
|
|
var width = this._applyCharStylesGetWidth(ctx, _char, lineIndex, charIndex);
|
|
ctx.restore();
|
|
return width;
|
|
}
|
|
},
|
|
_getHeightOfChar: function(ctx, lineIndex, charIndex) {
|
|
var style = this._getStyleDeclaration(lineIndex, charIndex);
|
|
return style && style.fontSize ? style.fontSize : this.fontSize;
|
|
},
|
|
_getWidthOfCharsAt: function(ctx, lineIndex, charIndex) {
|
|
var width = 0, i, _char;
|
|
for (i = 0; i < charIndex; i++) {
|
|
_char = this._textLines[lineIndex][i];
|
|
width += this._getWidthOfChar(ctx, _char, lineIndex, i);
|
|
}
|
|
return width;
|
|
},
|
|
_measureLine: function(ctx, lineIndex) {
|
|
this._isMeasuring = true;
|
|
var width = this._getWidthOfCharsAt(ctx, lineIndex, this._textLines[lineIndex].length);
|
|
this._isMeasuring = false;
|
|
return width;
|
|
},
|
|
_getWidthOfSpace: function(ctx, lineIndex) {
|
|
if (this.__widthOfSpace[lineIndex]) {
|
|
return this.__widthOfSpace[lineIndex];
|
|
}
|
|
var line = this._textLines[lineIndex], wordsWidth = this._getWidthOfWords(ctx, line, lineIndex, 0), widthDiff = this.width - wordsWidth, numSpaces = line.length - line.replace(this._reSpacesAndTabs, "").length, width = Math.max(widthDiff / numSpaces, ctx.measureText(" ").width);
|
|
this.__widthOfSpace[lineIndex] = width;
|
|
return width;
|
|
},
|
|
_getWidthOfWords: function(ctx, line, lineIndex, charOffset) {
|
|
var width = 0;
|
|
for (var charIndex = 0; charIndex < line.length; charIndex++) {
|
|
var _char = line[charIndex];
|
|
if (!_char.match(/\s/)) {
|
|
width += this._getWidthOfChar(ctx, _char, lineIndex, charIndex + charOffset);
|
|
}
|
|
}
|
|
return width;
|
|
},
|
|
_getHeightOfLine: function(ctx, lineIndex) {
|
|
if (this.__lineHeights[lineIndex]) {
|
|
return this.__lineHeights[lineIndex];
|
|
}
|
|
var line = this._textLines[lineIndex], maxHeight = this._getHeightOfChar(ctx, lineIndex, 0);
|
|
for (var i = 1, len = line.length; i < len; i++) {
|
|
var currentCharHeight = this._getHeightOfChar(ctx, lineIndex, i);
|
|
if (currentCharHeight > maxHeight) {
|
|
maxHeight = currentCharHeight;
|
|
}
|
|
}
|
|
this.__lineHeights[lineIndex] = maxHeight * this.lineHeight * this._fontSizeMult;
|
|
return this.__lineHeights[lineIndex];
|
|
},
|
|
_getTextHeight: function(ctx) {
|
|
var lineHeight, height = 0;
|
|
for (var i = 0, len = this._textLines.length; i < len; i++) {
|
|
lineHeight = this._getHeightOfLine(ctx, i);
|
|
height += i === len - 1 ? lineHeight / this.lineHeight : lineHeight;
|
|
}
|
|
return height;
|
|
},
|
|
toObject: function(propertiesToInclude) {
|
|
var clonedStyles = {}, i, j, row;
|
|
for (i in this.styles) {
|
|
row = this.styles[i];
|
|
clonedStyles[i] = {};
|
|
for (j in row) {
|
|
clonedStyles[i][j] = clone(row[j]);
|
|
}
|
|
}
|
|
return fabric.util.object.extend(this.callSuper("toObject", propertiesToInclude), {
|
|
styles: clonedStyles
|
|
});
|
|
}
|
|
});
|
|
fabric.IText.fromObject = function(object) {
|
|
return new fabric.IText(object.text, clone(object));
|
|
};
|
|
})();
|
|
|
|
(function() {
|
|
var clone = fabric.util.object.clone;
|
|
fabric.util.object.extend(fabric.IText.prototype, {
|
|
initBehavior: function() {
|
|
this.initAddedHandler();
|
|
this.initRemovedHandler();
|
|
this.initCursorSelectionHandlers();
|
|
this.initDoubleClickSimulation();
|
|
},
|
|
initSelectedHandler: function() {
|
|
this.on("selected", function() {
|
|
var _this = this;
|
|
setTimeout(function() {
|
|
_this.selected = true;
|
|
}, 100);
|
|
});
|
|
},
|
|
initAddedHandler: function() {
|
|
var _this = this;
|
|
this.on("added", function() {
|
|
if (this.canvas && !this.canvas._hasITextHandlers) {
|
|
this.canvas._hasITextHandlers = true;
|
|
this._initCanvasHandlers();
|
|
}
|
|
if (_this.canvas) {
|
|
_this.canvas._iTextInstances = _this.canvas._iTextInstances || [];
|
|
_this.canvas._iTextInstances.push(_this);
|
|
}
|
|
});
|
|
},
|
|
initRemovedHandler: function() {
|
|
var _this = this;
|
|
this.on("removed", function() {
|
|
if (_this.canvas) {
|
|
_this.canvas._iTextInstances = _this.canvas._iTextInstances || [];
|
|
fabric.util.removeFromArray(_this.canvas._iTextInstances, _this);
|
|
}
|
|
});
|
|
},
|
|
_initCanvasHandlers: function() {
|
|
var _this = this;
|
|
this.canvas.on("selection:cleared", function() {
|
|
fabric.IText.prototype.exitEditingOnOthers(_this.canvas);
|
|
});
|
|
this.canvas.on("mouse:up", function() {
|
|
if (_this.canvas._iTextInstances) {
|
|
_this.canvas._iTextInstances.forEach(function(obj) {
|
|
obj.__isMousedown = false;
|
|
});
|
|
}
|
|
});
|
|
this.canvas.on("object:selected", function() {
|
|
fabric.IText.prototype.exitEditingOnOthers(_this.canvas);
|
|
});
|
|
},
|
|
_tick: function() {
|
|
this._currentTickState = this._animateCursor(this, 1, this.cursorDuration, "_onTickComplete");
|
|
},
|
|
_animateCursor: function(obj, targetOpacity, duration, completeMethod) {
|
|
var tickState;
|
|
tickState = {
|
|
isAborted: false,
|
|
abort: function() {
|
|
this.isAborted = true;
|
|
}
|
|
};
|
|
obj.animate("_currentCursorOpacity", targetOpacity, {
|
|
duration: duration,
|
|
onComplete: function() {
|
|
if (!tickState.isAborted) {
|
|
obj[completeMethod]();
|
|
}
|
|
},
|
|
onChange: function() {
|
|
if (obj.canvas && obj.selectionStart === obj.selectionEnd) {
|
|
obj.renderCursorOrSelection();
|
|
}
|
|
},
|
|
abort: function() {
|
|
return tickState.isAborted;
|
|
}
|
|
});
|
|
return tickState;
|
|
},
|
|
_onTickComplete: function() {
|
|
var _this = this;
|
|
if (this._cursorTimeout1) {
|
|
clearTimeout(this._cursorTimeout1);
|
|
}
|
|
this._cursorTimeout1 = setTimeout(function() {
|
|
_this._currentTickCompleteState = _this._animateCursor(_this, 0, this.cursorDuration / 2, "_tick");
|
|
}, 100);
|
|
},
|
|
initDelayedCursor: function(restart) {
|
|
var _this = this, delay = restart ? 0 : this.cursorDelay;
|
|
this.abortCursorAnimation();
|
|
this._currentCursorOpacity = 1;
|
|
this._cursorTimeout2 = setTimeout(function() {
|
|
_this._tick();
|
|
}, delay);
|
|
},
|
|
abortCursorAnimation: function() {
|
|
var shouldClear = this._currentTickState || this._currentTickCompleteState;
|
|
this._currentTickState && this._currentTickState.abort();
|
|
this._currentTickCompleteState && this._currentTickCompleteState.abort();
|
|
clearTimeout(this._cursorTimeout1);
|
|
clearTimeout(this._cursorTimeout2);
|
|
this._currentCursorOpacity = 0;
|
|
if (shouldClear) {
|
|
this.canvas && this.canvas.clearContext(this.canvas.contextTop || this.ctx);
|
|
}
|
|
},
|
|
selectAll: function() {
|
|
this.selectionStart = 0;
|
|
this.selectionEnd = this.text.length;
|
|
this._fireSelectionChanged();
|
|
this._updateTextarea();
|
|
},
|
|
getSelectedText: function() {
|
|
return this.text.slice(this.selectionStart, this.selectionEnd);
|
|
},
|
|
findWordBoundaryLeft: function(startFrom) {
|
|
var offset = 0, index = startFrom - 1;
|
|
if (this._reSpace.test(this.text.charAt(index))) {
|
|
while (this._reSpace.test(this.text.charAt(index))) {
|
|
offset++;
|
|
index--;
|
|
}
|
|
}
|
|
while (/\S/.test(this.text.charAt(index)) && index > -1) {
|
|
offset++;
|
|
index--;
|
|
}
|
|
return startFrom - offset;
|
|
},
|
|
findWordBoundaryRight: function(startFrom) {
|
|
var offset = 0, index = startFrom;
|
|
if (this._reSpace.test(this.text.charAt(index))) {
|
|
while (this._reSpace.test(this.text.charAt(index))) {
|
|
offset++;
|
|
index++;
|
|
}
|
|
}
|
|
while (/\S/.test(this.text.charAt(index)) && index < this.text.length) {
|
|
offset++;
|
|
index++;
|
|
}
|
|
return startFrom + offset;
|
|
},
|
|
findLineBoundaryLeft: function(startFrom) {
|
|
var offset = 0, index = startFrom - 1;
|
|
while (!/\n/.test(this.text.charAt(index)) && index > -1) {
|
|
offset++;
|
|
index--;
|
|
}
|
|
return startFrom - offset;
|
|
},
|
|
findLineBoundaryRight: function(startFrom) {
|
|
var offset = 0, index = startFrom;
|
|
while (!/\n/.test(this.text.charAt(index)) && index < this.text.length) {
|
|
offset++;
|
|
index++;
|
|
}
|
|
return startFrom + offset;
|
|
},
|
|
getNumNewLinesInSelectedText: function() {
|
|
var selectedText = this.getSelectedText(), numNewLines = 0;
|
|
for (var i = 0, len = selectedText.length; i < len; i++) {
|
|
if (selectedText[i] === "\n") {
|
|
numNewLines++;
|
|
}
|
|
}
|
|
return numNewLines;
|
|
},
|
|
searchWordBoundary: function(selectionStart, direction) {
|
|
var index = this._reSpace.test(this.text.charAt(selectionStart)) ? selectionStart - 1 : selectionStart, _char = this.text.charAt(index), reNonWord = /[ \n\.,;!\?\-]/;
|
|
while (!reNonWord.test(_char) && index > 0 && index < this.text.length) {
|
|
index += direction;
|
|
_char = this.text.charAt(index);
|
|
}
|
|
if (reNonWord.test(_char) && _char !== "\n") {
|
|
index += direction === 1 ? 0 : 1;
|
|
}
|
|
return index;
|
|
},
|
|
selectWord: function(selectionStart) {
|
|
selectionStart = selectionStart || this.selectionStart;
|
|
var newSelectionStart = this.searchWordBoundary(selectionStart, -1), newSelectionEnd = this.searchWordBoundary(selectionStart, 1);
|
|
this.selectionStart = newSelectionStart;
|
|
this.selectionEnd = newSelectionEnd;
|
|
this._fireSelectionChanged();
|
|
this._updateTextarea();
|
|
this.renderCursorOrSelection();
|
|
},
|
|
selectLine: function(selectionStart) {
|
|
selectionStart = selectionStart || this.selectionStart;
|
|
var newSelectionStart = this.findLineBoundaryLeft(selectionStart), newSelectionEnd = this.findLineBoundaryRight(selectionStart);
|
|
this.selectionStart = newSelectionStart;
|
|
this.selectionEnd = newSelectionEnd;
|
|
this._fireSelectionChanged();
|
|
this._updateTextarea();
|
|
},
|
|
enterEditing: function(e) {
|
|
if (this.isEditing || !this.editable) {
|
|
return;
|
|
}
|
|
if (this.canvas) {
|
|
this.exitEditingOnOthers(this.canvas);
|
|
}
|
|
this.isEditing = true;
|
|
this.initHiddenTextarea(e);
|
|
this.hiddenTextarea.focus();
|
|
this._updateTextarea();
|
|
this._saveEditingProps();
|
|
this._setEditingProps();
|
|
this._textBeforeEdit = this.text;
|
|
this._tick();
|
|
this.fire("editing:entered");
|
|
if (!this.canvas) {
|
|
return this;
|
|
}
|
|
this.canvas.fire("text:editing:entered", {
|
|
target: this
|
|
});
|
|
this.canvas.renderAll();
|
|
this.initMouseMoveHandler();
|
|
return this;
|
|
},
|
|
exitEditingOnOthers: function(canvas) {
|
|
if (canvas._iTextInstances) {
|
|
canvas._iTextInstances.forEach(function(obj) {
|
|
obj.selected = false;
|
|
if (obj.isEditing) {
|
|
obj.exitEditing();
|
|
}
|
|
});
|
|
}
|
|
},
|
|
initMouseMoveHandler: function() {
|
|
this.canvas.on("mouse:move", this.mouseMoveHandler.bind(this));
|
|
},
|
|
mouseMoveHandler: function(options) {
|
|
if (!this.__isMousedown || !this.isEditing) {
|
|
return;
|
|
}
|
|
var newSelectionStart = this.getSelectionStartFromPointer(options.e);
|
|
if (newSelectionStart === this.__selectionStartOnMouseDown) {
|
|
return;
|
|
}
|
|
if (newSelectionStart > this.__selectionStartOnMouseDown) {
|
|
this.selectionStart = this.__selectionStartOnMouseDown;
|
|
this.selectionEnd = newSelectionStart;
|
|
} else {
|
|
this.selectionStart = newSelectionStart;
|
|
this.selectionEnd = this.__selectionStartOnMouseDown;
|
|
}
|
|
this._fireSelectionChanged();
|
|
this._updateTextarea();
|
|
this.renderCursorOrSelection();
|
|
},
|
|
_setEditingProps: function() {
|
|
this.hoverCursor = "text";
|
|
if (this.canvas) {
|
|
this.canvas.defaultCursor = this.canvas.moveCursor = "text";
|
|
}
|
|
this.borderColor = this.editingBorderColor;
|
|
this.hasControls = this.selectable = false;
|
|
this.lockMovementX = this.lockMovementY = true;
|
|
},
|
|
_updateTextarea: function() {
|
|
if (!this.hiddenTextarea || this.inCompositionMode) {
|
|
return;
|
|
}
|
|
this.hiddenTextarea.value = this.text;
|
|
this.hiddenTextarea.selectionStart = this.selectionStart;
|
|
this.hiddenTextarea.selectionEnd = this.selectionEnd;
|
|
if (this.selectionStart === this.selectionEnd) {
|
|
var style = this._calcTextareaPosition();
|
|
this.hiddenTextarea.style.left = style.left;
|
|
this.hiddenTextarea.style.top = style.top;
|
|
this.hiddenTextarea.style.fontSize = style.fontSize;
|
|
}
|
|
},
|
|
_calcTextareaPosition: function() {
|
|
if (!this.canvas) {
|
|
return {
|
|
x: 1,
|
|
y: 1
|
|
};
|
|
}
|
|
var chars = this.text.split(""), boundaries = this._getCursorBoundaries(chars, "cursor"), cursorLocation = this.get2DCursorLocation(), lineIndex = cursorLocation.lineIndex, charIndex = cursorLocation.charIndex, charHeight = this.getCurrentCharFontSize(lineIndex, charIndex), leftOffset = lineIndex === 0 && charIndex === 0 ? this._getLineLeftOffset(this._getLineWidth(this.ctx, lineIndex)) : boundaries.leftOffset, m = this.calcTransformMatrix(), p = {
|
|
x: boundaries.left + leftOffset,
|
|
y: boundaries.top + boundaries.topOffset + charHeight
|
|
}, upperCanvas = this.canvas.upperCanvasEl, maxWidth = upperCanvas.width - charHeight, maxHeight = upperCanvas.height - charHeight;
|
|
p = fabric.util.transformPoint(p, m);
|
|
p = fabric.util.transformPoint(p, this.canvas.viewportTransform);
|
|
if (p.x < 0) {
|
|
p.x = 0;
|
|
}
|
|
if (p.x > maxWidth) {
|
|
p.x = maxWidth;
|
|
}
|
|
if (p.y < 0) {
|
|
p.y = 0;
|
|
}
|
|
if (p.y > maxHeight) {
|
|
p.y = maxHeight;
|
|
}
|
|
return {
|
|
left: p.x + "px",
|
|
top: p.y + "px",
|
|
fontSize: charHeight
|
|
};
|
|
},
|
|
_saveEditingProps: function() {
|
|
this._savedProps = {
|
|
hasControls: this.hasControls,
|
|
borderColor: this.borderColor,
|
|
lockMovementX: this.lockMovementX,
|
|
lockMovementY: this.lockMovementY,
|
|
hoverCursor: this.hoverCursor,
|
|
defaultCursor: this.canvas && this.canvas.defaultCursor,
|
|
moveCursor: this.canvas && this.canvas.moveCursor
|
|
};
|
|
},
|
|
_restoreEditingProps: function() {
|
|
if (!this._savedProps) {
|
|
return;
|
|
}
|
|
this.hoverCursor = this._savedProps.overCursor;
|
|
this.hasControls = this._savedProps.hasControls;
|
|
this.borderColor = this._savedProps.borderColor;
|
|
this.lockMovementX = this._savedProps.lockMovementX;
|
|
this.lockMovementY = this._savedProps.lockMovementY;
|
|
if (this.canvas) {
|
|
this.canvas.defaultCursor = this._savedProps.defaultCursor;
|
|
this.canvas.moveCursor = this._savedProps.moveCursor;
|
|
}
|
|
},
|
|
exitEditing: function() {
|
|
var isTextChanged = this._textBeforeEdit !== this.text;
|
|
this.selected = false;
|
|
this.isEditing = false;
|
|
this.selectable = true;
|
|
this.selectionEnd = this.selectionStart;
|
|
this.hiddenTextarea && this.canvas && this.hiddenTextarea.parentNode.removeChild(this.hiddenTextarea);
|
|
this.hiddenTextarea = null;
|
|
this.abortCursorAnimation();
|
|
this._restoreEditingProps();
|
|
this._currentCursorOpacity = 0;
|
|
this.fire("editing:exited");
|
|
isTextChanged && this.fire("modified");
|
|
if (this.canvas) {
|
|
this.canvas.off("mouse:move", this.mouseMoveHandler);
|
|
this.canvas.fire("text:editing:exited", {
|
|
target: this
|
|
});
|
|
isTextChanged && this.canvas.fire("object:modified", {
|
|
target: this
|
|
});
|
|
}
|
|
return this;
|
|
},
|
|
_removeExtraneousStyles: function() {
|
|
for (var prop in this.styles) {
|
|
if (!this._textLines[prop]) {
|
|
delete this.styles[prop];
|
|
}
|
|
}
|
|
},
|
|
_removeCharsFromTo: function(start, end) {
|
|
while (end !== start) {
|
|
this._removeSingleCharAndStyle(start + 1);
|
|
end--;
|
|
}
|
|
this.selectionStart = start;
|
|
this.selectionEnd = start;
|
|
},
|
|
_removeSingleCharAndStyle: function(index) {
|
|
var isBeginningOfLine = this.text[index - 1] === "\n", indexStyle = isBeginningOfLine ? index : index - 1;
|
|
this.removeStyleObject(isBeginningOfLine, indexStyle);
|
|
this.text = this.text.slice(0, index - 1) + this.text.slice(index);
|
|
this._textLines = this._splitTextIntoLines();
|
|
},
|
|
insertChars: function(_chars, useCopiedStyle) {
|
|
var style;
|
|
if (this.selectionEnd - this.selectionStart > 1) {
|
|
this._removeCharsFromTo(this.selectionStart, this.selectionEnd);
|
|
}
|
|
if (!useCopiedStyle && this.isEmptyStyles()) {
|
|
this.insertChar(_chars, false);
|
|
return;
|
|
}
|
|
for (var i = 0, len = _chars.length; i < len; i++) {
|
|
if (useCopiedStyle) {
|
|
style = fabric.copiedTextStyle[i];
|
|
}
|
|
this.insertChar(_chars[i], i < len - 1, style);
|
|
}
|
|
},
|
|
insertChar: function(_char, skipUpdate, styleObject) {
|
|
var isEndOfLine = this.text[this.selectionStart] === "\n";
|
|
this.text = this.text.slice(0, this.selectionStart) + _char + this.text.slice(this.selectionEnd);
|
|
this._textLines = this._splitTextIntoLines();
|
|
this.insertStyleObjects(_char, isEndOfLine, styleObject);
|
|
this.selectionStart += _char.length;
|
|
this.selectionEnd = this.selectionStart;
|
|
if (skipUpdate) {
|
|
return;
|
|
}
|
|
this._updateTextarea();
|
|
this.setCoords();
|
|
this._fireSelectionChanged();
|
|
this.fire("changed");
|
|
this.canvas && this.canvas.fire("text:changed", {
|
|
target: this
|
|
});
|
|
this.canvas && this.canvas.renderAll();
|
|
},
|
|
insertNewlineStyleObject: function(lineIndex, charIndex, isEndOfLine) {
|
|
this.shiftLineStyles(lineIndex, +1);
|
|
if (!this.styles[lineIndex + 1]) {
|
|
this.styles[lineIndex + 1] = {};
|
|
}
|
|
var currentCharStyle = {}, newLineStyles = {};
|
|
if (this.styles[lineIndex] && this.styles[lineIndex][charIndex - 1]) {
|
|
currentCharStyle = this.styles[lineIndex][charIndex - 1];
|
|
}
|
|
if (isEndOfLine) {
|
|
newLineStyles[0] = clone(currentCharStyle);
|
|
this.styles[lineIndex + 1] = newLineStyles;
|
|
} else {
|
|
for (var index in this.styles[lineIndex]) {
|
|
if (parseInt(index, 10) >= charIndex) {
|
|
newLineStyles[parseInt(index, 10) - charIndex] = this.styles[lineIndex][index];
|
|
delete this.styles[lineIndex][index];
|
|
}
|
|
}
|
|
this.styles[lineIndex + 1] = newLineStyles;
|
|
}
|
|
this._forceClearCache = true;
|
|
},
|
|
insertCharStyleObject: function(lineIndex, charIndex, style) {
|
|
var currentLineStyles = this.styles[lineIndex], currentLineStylesCloned = clone(currentLineStyles);
|
|
if (charIndex === 0 && !style) {
|
|
charIndex = 1;
|
|
}
|
|
for (var index in currentLineStylesCloned) {
|
|
var numericIndex = parseInt(index, 10);
|
|
if (numericIndex >= charIndex) {
|
|
currentLineStyles[numericIndex + 1] = currentLineStylesCloned[numericIndex];
|
|
if (!currentLineStylesCloned[numericIndex - 1]) {
|
|
delete currentLineStyles[numericIndex];
|
|
}
|
|
}
|
|
}
|
|
this.styles[lineIndex][charIndex] = style || clone(currentLineStyles[charIndex - 1]);
|
|
this._forceClearCache = true;
|
|
},
|
|
insertStyleObjects: function(_chars, isEndOfLine, styleObject) {
|
|
var cursorLocation = this.get2DCursorLocation(), lineIndex = cursorLocation.lineIndex, charIndex = cursorLocation.charIndex;
|
|
if (!this._getLineStyle(lineIndex)) {
|
|
this._setLineStyle(lineIndex, {});
|
|
}
|
|
if (_chars === "\n") {
|
|
this.insertNewlineStyleObject(lineIndex, charIndex, isEndOfLine);
|
|
} else {
|
|
this.insertCharStyleObject(lineIndex, charIndex, styleObject);
|
|
}
|
|
},
|
|
shiftLineStyles: function(lineIndex, offset) {
|
|
var clonedStyles = clone(this.styles);
|
|
for (var line in this.styles) {
|
|
var numericLine = parseInt(line, 10);
|
|
if (numericLine > lineIndex) {
|
|
this.styles[numericLine + offset] = clonedStyles[numericLine];
|
|
if (!clonedStyles[numericLine - offset]) {
|
|
delete this.styles[numericLine];
|
|
}
|
|
}
|
|
}
|
|
},
|
|
removeStyleObject: function(isBeginningOfLine, index) {
|
|
var cursorLocation = this.get2DCursorLocation(index), lineIndex = cursorLocation.lineIndex, charIndex = cursorLocation.charIndex;
|
|
this._removeStyleObject(isBeginningOfLine, cursorLocation, lineIndex, charIndex);
|
|
},
|
|
_getTextOnPreviousLine: function(lIndex) {
|
|
return this._textLines[lIndex - 1];
|
|
},
|
|
_removeStyleObject: function(isBeginningOfLine, cursorLocation, lineIndex, charIndex) {
|
|
if (isBeginningOfLine) {
|
|
var textOnPreviousLine = this._getTextOnPreviousLine(cursorLocation.lineIndex), newCharIndexOnPrevLine = textOnPreviousLine ? textOnPreviousLine.length : 0;
|
|
if (!this.styles[lineIndex - 1]) {
|
|
this.styles[lineIndex - 1] = {};
|
|
}
|
|
for (charIndex in this.styles[lineIndex]) {
|
|
this.styles[lineIndex - 1][parseInt(charIndex, 10) + newCharIndexOnPrevLine] = this.styles[lineIndex][charIndex];
|
|
}
|
|
this.shiftLineStyles(cursorLocation.lineIndex, -1);
|
|
} else {
|
|
var currentLineStyles = this.styles[lineIndex];
|
|
if (currentLineStyles) {
|
|
delete currentLineStyles[charIndex];
|
|
}
|
|
var currentLineStylesCloned = clone(currentLineStyles);
|
|
for (var i in currentLineStylesCloned) {
|
|
var numericIndex = parseInt(i, 10);
|
|
if (numericIndex >= charIndex && numericIndex !== 0) {
|
|
currentLineStyles[numericIndex - 1] = currentLineStylesCloned[numericIndex];
|
|
delete currentLineStyles[numericIndex];
|
|
}
|
|
}
|
|
}
|
|
},
|
|
insertNewline: function() {
|
|
this.insertChars("\n");
|
|
}
|
|
});
|
|
})();
|
|
|
|
fabric.util.object.extend(fabric.IText.prototype, {
|
|
initDoubleClickSimulation: function() {
|
|
this.__lastClickTime = +new Date();
|
|
this.__lastLastClickTime = +new Date();
|
|
this.__lastPointer = {};
|
|
this.on("mousedown", this.onMouseDown.bind(this));
|
|
},
|
|
onMouseDown: function(options) {
|
|
this.__newClickTime = +new Date();
|
|
var newPointer = this.canvas.getPointer(options.e);
|
|
if (this.isTripleClick(newPointer)) {
|
|
this.fire("tripleclick", options);
|
|
this._stopEvent(options.e);
|
|
} else if (this.isDoubleClick(newPointer)) {
|
|
this.fire("dblclick", options);
|
|
this._stopEvent(options.e);
|
|
}
|
|
this.__lastLastClickTime = this.__lastClickTime;
|
|
this.__lastClickTime = this.__newClickTime;
|
|
this.__lastPointer = newPointer;
|
|
this.__lastIsEditing = this.isEditing;
|
|
this.__lastSelected = this.selected;
|
|
},
|
|
isDoubleClick: function(newPointer) {
|
|
return this.__newClickTime - this.__lastClickTime < 500 && this.__lastPointer.x === newPointer.x && this.__lastPointer.y === newPointer.y && this.__lastIsEditing;
|
|
},
|
|
isTripleClick: function(newPointer) {
|
|
return this.__newClickTime - this.__lastClickTime < 500 && this.__lastClickTime - this.__lastLastClickTime < 500 && this.__lastPointer.x === newPointer.x && this.__lastPointer.y === newPointer.y;
|
|
},
|
|
_stopEvent: function(e) {
|
|
e.preventDefault && e.preventDefault();
|
|
e.stopPropagation && e.stopPropagation();
|
|
},
|
|
initCursorSelectionHandlers: function() {
|
|
this.initSelectedHandler();
|
|
this.initMousedownHandler();
|
|
this.initMouseupHandler();
|
|
this.initClicks();
|
|
},
|
|
initClicks: function() {
|
|
this.on("dblclick", function(options) {
|
|
this.selectWord(this.getSelectionStartFromPointer(options.e));
|
|
});
|
|
this.on("tripleclick", function(options) {
|
|
this.selectLine(this.getSelectionStartFromPointer(options.e));
|
|
});
|
|
},
|
|
initMousedownHandler: function() {
|
|
this.on("mousedown", function(options) {
|
|
if (!this.editable) {
|
|
return;
|
|
}
|
|
var pointer = this.canvas.getPointer(options.e);
|
|
this.__mousedownX = pointer.x;
|
|
this.__mousedownY = pointer.y;
|
|
this.__isMousedown = true;
|
|
if (this.hiddenTextarea && this.canvas) {
|
|
this.canvas.wrapperEl.appendChild(this.hiddenTextarea);
|
|
}
|
|
if (this.selected) {
|
|
this.setCursorByClick(options.e);
|
|
}
|
|
if (this.isEditing) {
|
|
this.__selectionStartOnMouseDown = this.selectionStart;
|
|
if (this.selectionStart === this.selectionEnd) {
|
|
this.abortCursorAnimation();
|
|
}
|
|
this.renderCursorOrSelection();
|
|
}
|
|
});
|
|
},
|
|
_isObjectMoved: function(e) {
|
|
var pointer = this.canvas.getPointer(e);
|
|
return this.__mousedownX !== pointer.x || this.__mousedownY !== pointer.y;
|
|
},
|
|
initMouseupHandler: function() {
|
|
this.on("mouseup", function(options) {
|
|
this.__isMousedown = false;
|
|
if (!this.editable || this._isObjectMoved(options.e)) {
|
|
return;
|
|
}
|
|
if (this.__lastSelected && !this.__corner) {
|
|
this.enterEditing(options.e);
|
|
if (this.selectionStart === this.selectionEnd) {
|
|
this.initDelayedCursor(true);
|
|
} else {
|
|
this.renderCursorOrSelection();
|
|
}
|
|
}
|
|
this.selected = true;
|
|
});
|
|
},
|
|
setCursorByClick: function(e) {
|
|
var newSelectionStart = this.getSelectionStartFromPointer(e);
|
|
if (e.shiftKey) {
|
|
if (newSelectionStart < this.selectionStart) {
|
|
this.selectionEnd = this.selectionStart;
|
|
this.selectionStart = newSelectionStart;
|
|
} else {
|
|
this.selectionEnd = newSelectionStart;
|
|
}
|
|
} else {
|
|
this.selectionStart = newSelectionStart;
|
|
this.selectionEnd = newSelectionStart;
|
|
}
|
|
this._fireSelectionChanged();
|
|
this._updateTextarea();
|
|
},
|
|
getSelectionStartFromPointer: function(e) {
|
|
var mouseOffset = this.getLocalPointer(e), prevWidth = 0, width = 0, height = 0, charIndex = 0, newSelectionStart, line;
|
|
for (var i = 0, len = this._textLines.length; i < len; i++) {
|
|
line = this._textLines[i];
|
|
height += this._getHeightOfLine(this.ctx, i) * this.scaleY;
|
|
var widthOfLine = this._getLineWidth(this.ctx, i), lineLeftOffset = this._getLineLeftOffset(widthOfLine);
|
|
width = lineLeftOffset * this.scaleX;
|
|
for (var j = 0, jlen = line.length; j < jlen; j++) {
|
|
prevWidth = width;
|
|
width += this._getWidthOfChar(this.ctx, line[j], i, this.flipX ? jlen - j : j) * this.scaleX;
|
|
if (height <= mouseOffset.y || width <= mouseOffset.x) {
|
|
charIndex++;
|
|
continue;
|
|
}
|
|
return this._getNewSelectionStartFromOffset(mouseOffset, prevWidth, width, charIndex + i, jlen);
|
|
}
|
|
if (mouseOffset.y < height) {
|
|
return this._getNewSelectionStartFromOffset(mouseOffset, prevWidth, width, charIndex + i - 1, jlen);
|
|
}
|
|
}
|
|
if (typeof newSelectionStart === "undefined") {
|
|
return this.text.length;
|
|
}
|
|
},
|
|
_getNewSelectionStartFromOffset: function(mouseOffset, prevWidth, width, index, jlen) {
|
|
var distanceBtwLastCharAndCursor = mouseOffset.x - prevWidth, distanceBtwNextCharAndCursor = width - mouseOffset.x, offset = distanceBtwNextCharAndCursor > distanceBtwLastCharAndCursor ? 0 : 1, newSelectionStart = index + offset;
|
|
if (this.flipX) {
|
|
newSelectionStart = jlen - newSelectionStart;
|
|
}
|
|
if (newSelectionStart > this.text.length) {
|
|
newSelectionStart = this.text.length;
|
|
}
|
|
return newSelectionStart;
|
|
}
|
|
});
|
|
|
|
fabric.util.object.extend(fabric.IText.prototype, {
|
|
initHiddenTextarea: function() {
|
|
this.hiddenTextarea = fabric.document.createElement("textarea");
|
|
this.hiddenTextarea.setAttribute("autocapitalize", "off");
|
|
var style = this._calcTextareaPosition();
|
|
this.hiddenTextarea.style.cssText = "position: absolute; top: " + style.top + "; left: " + style.left + ";" + " opacity: 0; width: 0px; height: 0px; z-index: -999;";
|
|
if (this.canvas) {
|
|
this.canvas.lowerCanvasEl.parentNode.appendChild(this.hiddenTextarea);
|
|
} else {
|
|
fabric.document.body.appendChild(this.hiddenTextarea);
|
|
}
|
|
fabric.util.addListener(this.hiddenTextarea, "keydown", this.onKeyDown.bind(this));
|
|
fabric.util.addListener(this.hiddenTextarea, "keyup", this.onKeyUp.bind(this));
|
|
fabric.util.addListener(this.hiddenTextarea, "input", this.onInput.bind(this));
|
|
fabric.util.addListener(this.hiddenTextarea, "copy", this.copy.bind(this));
|
|
fabric.util.addListener(this.hiddenTextarea, "cut", this.cut.bind(this));
|
|
fabric.util.addListener(this.hiddenTextarea, "paste", this.paste.bind(this));
|
|
fabric.util.addListener(this.hiddenTextarea, "compositionstart", this.onCompositionStart.bind(this));
|
|
fabric.util.addListener(this.hiddenTextarea, "compositionupdate", this.onCompositionUpdate.bind(this));
|
|
fabric.util.addListener(this.hiddenTextarea, "compositionend", this.onCompositionEnd.bind(this));
|
|
if (!this._clickHandlerInitialized && this.canvas) {
|
|
fabric.util.addListener(this.canvas.upperCanvasEl, "click", this.onClick.bind(this));
|
|
this._clickHandlerInitialized = true;
|
|
}
|
|
},
|
|
_keysMap: {
|
|
8: "removeChars",
|
|
9: "exitEditing",
|
|
27: "exitEditing",
|
|
13: "insertNewline",
|
|
33: "moveCursorUp",
|
|
34: "moveCursorDown",
|
|
35: "moveCursorRight",
|
|
36: "moveCursorLeft",
|
|
37: "moveCursorLeft",
|
|
38: "moveCursorUp",
|
|
39: "moveCursorRight",
|
|
40: "moveCursorDown",
|
|
46: "forwardDelete"
|
|
},
|
|
_ctrlKeysMapUp: {
|
|
67: "copy",
|
|
88: "cut"
|
|
},
|
|
_ctrlKeysMapDown: {
|
|
65: "selectAll"
|
|
},
|
|
onClick: function() {
|
|
this.hiddenTextarea && this.hiddenTextarea.focus();
|
|
},
|
|
onKeyDown: function(e) {
|
|
if (!this.isEditing) {
|
|
return;
|
|
}
|
|
if (e.keyCode in this._keysMap) {
|
|
this[this._keysMap[e.keyCode]](e);
|
|
} else if (e.keyCode in this._ctrlKeysMapDown && (e.ctrlKey || e.metaKey)) {
|
|
this[this._ctrlKeysMapDown[e.keyCode]](e);
|
|
} else {
|
|
return;
|
|
}
|
|
e.stopImmediatePropagation();
|
|
e.preventDefault();
|
|
this.canvas && this.canvas.renderAll();
|
|
},
|
|
onKeyUp: function(e) {
|
|
if (!this.isEditing || this._copyDone) {
|
|
this._copyDone = false;
|
|
return;
|
|
}
|
|
if (e.keyCode in this._ctrlKeysMapUp && (e.ctrlKey || e.metaKey)) {
|
|
this[this._ctrlKeysMapUp[e.keyCode]](e);
|
|
} else {
|
|
return;
|
|
}
|
|
e.stopImmediatePropagation();
|
|
e.preventDefault();
|
|
this.canvas && this.canvas.renderAll();
|
|
},
|
|
onInput: function(e) {
|
|
if (!this.isEditing || this.inCompositionMode) {
|
|
return;
|
|
}
|
|
var offset = this.selectionStart || 0, offsetEnd = this.selectionEnd || 0, textLength = this.text.length, newTextLength = this.hiddenTextarea.value.length, diff, charsToInsert, start;
|
|
if (newTextLength > textLength) {
|
|
start = this._selectionDirection === "left" ? offsetEnd : offset;
|
|
diff = newTextLength - textLength;
|
|
charsToInsert = this.hiddenTextarea.value.slice(start, start + diff);
|
|
} else {
|
|
diff = newTextLength - textLength + offsetEnd - offset;
|
|
charsToInsert = this.hiddenTextarea.value.slice(offset, offset + diff);
|
|
}
|
|
this.insertChars(charsToInsert);
|
|
e.stopPropagation();
|
|
},
|
|
onCompositionStart: function() {
|
|
this.inCompositionMode = true;
|
|
this.prevCompositionLength = 0;
|
|
this.compositionStart = this.selectionStart;
|
|
},
|
|
onCompositionEnd: function() {
|
|
this.inCompositionMode = false;
|
|
},
|
|
onCompositionUpdate: function(e) {
|
|
var data = e.data;
|
|
this.selectionStart = this.compositionStart;
|
|
this.selectionEnd = this.selectionEnd === this.selectionStart ? this.compositionStart + this.prevCompositionLength : this.selectionEnd;
|
|
this.insertChars(data, false);
|
|
this.prevCompositionLength = data.length;
|
|
},
|
|
forwardDelete: function(e) {
|
|
if (this.selectionStart === this.selectionEnd) {
|
|
if (this.selectionStart === this.text.length) {
|
|
return;
|
|
}
|
|
this.moveCursorRight(e);
|
|
}
|
|
this.removeChars(e);
|
|
},
|
|
copy: function(e) {
|
|
if (this.selectionStart === this.selectionEnd) {
|
|
return;
|
|
}
|
|
var selectedText = this.getSelectedText(), clipboardData = this._getClipboardData(e);
|
|
if (clipboardData) {
|
|
clipboardData.setData("text", selectedText);
|
|
}
|
|
fabric.copiedText = selectedText;
|
|
fabric.copiedTextStyle = this.getSelectionStyles(this.selectionStart, this.selectionEnd);
|
|
e.stopImmediatePropagation();
|
|
e.preventDefault();
|
|
this._copyDone = true;
|
|
},
|
|
paste: function(e) {
|
|
var copiedText = null, clipboardData = this._getClipboardData(e), useCopiedStyle = true;
|
|
if (clipboardData) {
|
|
copiedText = clipboardData.getData("text").replace(/\r/g, "");
|
|
if (!fabric.copiedTextStyle || fabric.copiedText !== copiedText) {
|
|
useCopiedStyle = false;
|
|
}
|
|
} else {
|
|
copiedText = fabric.copiedText;
|
|
}
|
|
if (copiedText) {
|
|
this.insertChars(copiedText, useCopiedStyle);
|
|
}
|
|
e.stopImmediatePropagation();
|
|
e.preventDefault();
|
|
},
|
|
cut: function(e) {
|
|
if (this.selectionStart === this.selectionEnd) {
|
|
return;
|
|
}
|
|
this.copy(e);
|
|
this.removeChars(e);
|
|
},
|
|
_getClipboardData: function(e) {
|
|
return e && e.clipboardData || fabric.window.clipboardData;
|
|
},
|
|
getDownCursorOffset: function(e, isRight) {
|
|
var selectionProp = isRight ? this.selectionEnd : this.selectionStart, cursorLocation = this.get2DCursorLocation(selectionProp), _char, lineLeftOffset, lineIndex = cursorLocation.lineIndex, textOnSameLineBeforeCursor = this._textLines[lineIndex].slice(0, cursorLocation.charIndex), textOnSameLineAfterCursor = this._textLines[lineIndex].slice(cursorLocation.charIndex), textOnNextLine = this._textLines[lineIndex + 1] || "";
|
|
if (lineIndex === this._textLines.length - 1 || e.metaKey || e.keyCode === 34) {
|
|
return this.text.length - selectionProp;
|
|
}
|
|
var widthOfSameLineBeforeCursor = this._getLineWidth(this.ctx, lineIndex);
|
|
lineLeftOffset = this._getLineLeftOffset(widthOfSameLineBeforeCursor);
|
|
var widthOfCharsOnSameLineBeforeCursor = lineLeftOffset;
|
|
for (var i = 0, len = textOnSameLineBeforeCursor.length; i < len; i++) {
|
|
_char = textOnSameLineBeforeCursor[i];
|
|
widthOfCharsOnSameLineBeforeCursor += this._getWidthOfChar(this.ctx, _char, lineIndex, i);
|
|
}
|
|
var indexOnNextLine = this._getIndexOnNextLine(cursorLocation, textOnNextLine, widthOfCharsOnSameLineBeforeCursor);
|
|
return textOnSameLineAfterCursor.length + 1 + indexOnNextLine;
|
|
},
|
|
_getIndexOnNextLine: function(cursorLocation, textOnNextLine, widthOfCharsOnSameLineBeforeCursor) {
|
|
var lineIndex = cursorLocation.lineIndex + 1, widthOfNextLine = this._getLineWidth(this.ctx, lineIndex), lineLeftOffset = this._getLineLeftOffset(widthOfNextLine), widthOfCharsOnNextLine = lineLeftOffset, indexOnNextLine = 0, foundMatch;
|
|
for (var j = 0, jlen = textOnNextLine.length; j < jlen; j++) {
|
|
var _char = textOnNextLine[j], widthOfChar = this._getWidthOfChar(this.ctx, _char, lineIndex, j);
|
|
widthOfCharsOnNextLine += widthOfChar;
|
|
if (widthOfCharsOnNextLine > widthOfCharsOnSameLineBeforeCursor) {
|
|
foundMatch = true;
|
|
var leftEdge = widthOfCharsOnNextLine - widthOfChar, rightEdge = widthOfCharsOnNextLine, offsetFromLeftEdge = Math.abs(leftEdge - widthOfCharsOnSameLineBeforeCursor), offsetFromRightEdge = Math.abs(rightEdge - widthOfCharsOnSameLineBeforeCursor);
|
|
indexOnNextLine = offsetFromRightEdge < offsetFromLeftEdge ? j + 1 : j;
|
|
break;
|
|
}
|
|
}
|
|
if (!foundMatch) {
|
|
indexOnNextLine = textOnNextLine.length;
|
|
}
|
|
return indexOnNextLine;
|
|
},
|
|
moveCursorDown: function(e) {
|
|
if (this.selectionStart >= this.text.length && this.selectionEnd >= this.text.length) {
|
|
return;
|
|
}
|
|
this._moveCursorUpOrDown("Down", e);
|
|
},
|
|
moveCursorDownWithoutShift: function(offset) {
|
|
this._selectionDirection = "right";
|
|
this.selectionEnd = this.selectionEnd + offset;
|
|
this.selectionStart = this.selectionEnd;
|
|
return offset !== 0;
|
|
},
|
|
swapSelectionPoints: function() {
|
|
var swapSel = this.selectionEnd;
|
|
this.selectionEnd = this.selectionStart;
|
|
this.selectionStart = swapSel;
|
|
},
|
|
moveCursorDownWithShift: function(offset) {
|
|
if (this.selectionEnd === this.selectionStart) {
|
|
this._selectionDirection = "right";
|
|
}
|
|
if (this._selectionDirection === "right") {
|
|
this.selectionEnd += offset;
|
|
} else {
|
|
this.selectionStart += offset;
|
|
}
|
|
if (this.selectionEnd < this.selectionStart && this._selectionDirection === "left") {
|
|
this.swapSelectionPoints();
|
|
this._selectionDirection = "right";
|
|
}
|
|
if (this.selectionEnd > this.text.length) {
|
|
this.selectionEnd = this.text.length;
|
|
}
|
|
return offset !== 0;
|
|
},
|
|
getUpCursorOffset: function(e, isRight) {
|
|
var selectionProp = isRight ? this.selectionEnd : this.selectionStart, cursorLocation = this.get2DCursorLocation(selectionProp), lineIndex = cursorLocation.lineIndex;
|
|
if (lineIndex === 0 || e.metaKey || e.keyCode === 33) {
|
|
return selectionProp;
|
|
}
|
|
var textOnSameLineBeforeCursor = this._textLines[lineIndex].slice(0, cursorLocation.charIndex), textOnPreviousLine = this._textLines[lineIndex - 1] || "", _char, widthOfSameLineBeforeCursor = this._getLineWidth(this.ctx, cursorLocation.lineIndex), lineLeftOffset = this._getLineLeftOffset(widthOfSameLineBeforeCursor), widthOfCharsOnSameLineBeforeCursor = lineLeftOffset;
|
|
for (var i = 0, len = textOnSameLineBeforeCursor.length; i < len; i++) {
|
|
_char = textOnSameLineBeforeCursor[i];
|
|
widthOfCharsOnSameLineBeforeCursor += this._getWidthOfChar(this.ctx, _char, lineIndex, i);
|
|
}
|
|
var indexOnPrevLine = this._getIndexOnPrevLine(cursorLocation, textOnPreviousLine, widthOfCharsOnSameLineBeforeCursor);
|
|
return textOnPreviousLine.length - indexOnPrevLine + textOnSameLineBeforeCursor.length;
|
|
},
|
|
_getIndexOnPrevLine: function(cursorLocation, textOnPreviousLine, widthOfCharsOnSameLineBeforeCursor) {
|
|
var lineIndex = cursorLocation.lineIndex - 1, widthOfPreviousLine = this._getLineWidth(this.ctx, lineIndex), lineLeftOffset = this._getLineLeftOffset(widthOfPreviousLine), widthOfCharsOnPreviousLine = lineLeftOffset, indexOnPrevLine = 0, foundMatch;
|
|
for (var j = 0, jlen = textOnPreviousLine.length; j < jlen; j++) {
|
|
var _char = textOnPreviousLine[j], widthOfChar = this._getWidthOfChar(this.ctx, _char, lineIndex, j);
|
|
widthOfCharsOnPreviousLine += widthOfChar;
|
|
if (widthOfCharsOnPreviousLine > widthOfCharsOnSameLineBeforeCursor) {
|
|
foundMatch = true;
|
|
var leftEdge = widthOfCharsOnPreviousLine - widthOfChar, rightEdge = widthOfCharsOnPreviousLine, offsetFromLeftEdge = Math.abs(leftEdge - widthOfCharsOnSameLineBeforeCursor), offsetFromRightEdge = Math.abs(rightEdge - widthOfCharsOnSameLineBeforeCursor);
|
|
indexOnPrevLine = offsetFromRightEdge < offsetFromLeftEdge ? j : j - 1;
|
|
break;
|
|
}
|
|
}
|
|
if (!foundMatch) {
|
|
indexOnPrevLine = textOnPreviousLine.length - 1;
|
|
}
|
|
return indexOnPrevLine;
|
|
},
|
|
moveCursorUp: function(e) {
|
|
if (this.selectionStart === 0 && this.selectionEnd === 0) {
|
|
return;
|
|
}
|
|
this._moveCursorUpOrDown("Up", e);
|
|
},
|
|
_moveCursorUpOrDown: function(direction, e) {
|
|
var action = "get" + direction + "CursorOffset", moveAction = "moveCursor" + direction, offset = this[action](e, this._selectionDirection === "right");
|
|
if (e.shiftKey) {
|
|
moveAction += "WithShift";
|
|
} else {
|
|
moveAction += "WithoutShift";
|
|
}
|
|
if (this[moveAction](offset)) {
|
|
this.abortCursorAnimation();
|
|
this._currentCursorOpacity = 1;
|
|
this.initDelayedCursor();
|
|
this._fireSelectionChanged();
|
|
this._updateTextarea();
|
|
}
|
|
},
|
|
moveCursorUpWithShift: function(offset) {
|
|
if (this.selectionEnd === this.selectionStart) {
|
|
this._selectionDirection = "left";
|
|
}
|
|
if (this._selectionDirection === "right") {
|
|
this.selectionEnd -= offset;
|
|
} else {
|
|
this.selectionStart -= offset;
|
|
}
|
|
if (this.selectionEnd < this.selectionStart && this._selectionDirection === "right") {
|
|
this.swapSelectionPoints();
|
|
this._selectionDirection = "left";
|
|
}
|
|
return offset !== 0;
|
|
},
|
|
moveCursorUpWithoutShift: function(offset) {
|
|
this._selectionDirection = "left";
|
|
this.selectionStart -= offset;
|
|
this.selectionEnd = this.selectionStart;
|
|
return offset !== 0;
|
|
},
|
|
moveCursorLeft: function(e) {
|
|
if (this.selectionStart === 0 && this.selectionEnd === 0) {
|
|
return;
|
|
}
|
|
this._moveCursorLeftOrRight("Left", e);
|
|
},
|
|
_move: function(e, prop, direction) {
|
|
var newValue;
|
|
if (e.altKey) {
|
|
newValue = this["findWordBoundary" + direction](this[prop]);
|
|
} else if (e.metaKey || e.keyCode === 35 || e.keyCode === 36) {
|
|
newValue = this["findLineBoundary" + direction](this[prop]);
|
|
} else {
|
|
this[prop] += direction === "Left" ? -1 : 1;
|
|
return true;
|
|
}
|
|
if (typeof newValue !== undefined && this[prop] !== newValue) {
|
|
this[prop] = newValue;
|
|
return true;
|
|
}
|
|
},
|
|
_moveLeft: function(e, prop) {
|
|
return this._move(e, prop, "Left");
|
|
},
|
|
_moveRight: function(e, prop) {
|
|
return this._move(e, prop, "Right");
|
|
},
|
|
moveCursorLeftWithoutShift: function(e) {
|
|
var change = false;
|
|
this._selectionDirection = "left";
|
|
if (this.selectionEnd === this.selectionStart && this.selectionStart !== 0) {
|
|
change = this._moveLeft(e, "selectionStart");
|
|
}
|
|
this.selectionEnd = this.selectionStart;
|
|
return change;
|
|
},
|
|
moveCursorLeftWithShift: function(e) {
|
|
if (this._selectionDirection === "right" && this.selectionStart !== this.selectionEnd) {
|
|
return this._moveLeft(e, "selectionEnd");
|
|
} else if (this.selectionStart !== 0) {
|
|
this._selectionDirection = "left";
|
|
return this._moveLeft(e, "selectionStart");
|
|
}
|
|
},
|
|
moveCursorRight: function(e) {
|
|
if (this.selectionStart >= this.text.length && this.selectionEnd >= this.text.length) {
|
|
return;
|
|
}
|
|
this._moveCursorLeftOrRight("Right", e);
|
|
},
|
|
_moveCursorLeftOrRight: function(direction, e) {
|
|
var actionName = "moveCursor" + direction + "With";
|
|
this._currentCursorOpacity = 1;
|
|
if (e.shiftKey) {
|
|
actionName += "Shift";
|
|
} else {
|
|
actionName += "outShift";
|
|
}
|
|
if (this[actionName](e)) {
|
|
console.log("will fire");
|
|
this.abortCursorAnimation();
|
|
this.initDelayedCursor();
|
|
this._fireSelectionChanged();
|
|
this._updateTextarea();
|
|
}
|
|
},
|
|
moveCursorRightWithShift: function(e) {
|
|
if (this._selectionDirection === "left" && this.selectionStart !== this.selectionEnd) {
|
|
return this._moveRight(e, "selectionStart");
|
|
} else if (this.selectionEnd !== this.text.length) {
|
|
this._selectionDirection = "right";
|
|
return this._moveRight(e, "selectionEnd");
|
|
}
|
|
},
|
|
moveCursorRightWithoutShift: function(e) {
|
|
var changed = false;
|
|
this._selectionDirection = "right";
|
|
if (this.selectionStart === this.selectionEnd) {
|
|
changed = this._moveRight(e, "selectionStart");
|
|
this.selectionEnd = this.selectionStart;
|
|
return changed;
|
|
} else {
|
|
this.selectionStart = this.selectionEnd;
|
|
return true;
|
|
}
|
|
},
|
|
removeChars: function(e) {
|
|
if (this.selectionStart === this.selectionEnd) {
|
|
this._removeCharsNearCursor(e);
|
|
} else {
|
|
this._removeCharsFromTo(this.selectionStart, this.selectionEnd);
|
|
}
|
|
this.setSelectionEnd(this.selectionStart);
|
|
this._removeExtraneousStyles();
|
|
this.canvas && this.canvas.renderAll();
|
|
this.setCoords();
|
|
this.fire("changed");
|
|
this.canvas && this.canvas.fire("text:changed", {
|
|
target: this
|
|
});
|
|
},
|
|
_removeCharsNearCursor: function(e) {
|
|
if (this.selectionStart === 0) {
|
|
return;
|
|
}
|
|
if (e.metaKey) {
|
|
var leftLineBoundary = this.findLineBoundaryLeft(this.selectionStart);
|
|
this._removeCharsFromTo(leftLineBoundary, this.selectionStart);
|
|
this.setSelectionStart(leftLineBoundary);
|
|
} else if (e.altKey) {
|
|
var leftWordBoundary = this.findWordBoundaryLeft(this.selectionStart);
|
|
this._removeCharsFromTo(leftWordBoundary, this.selectionStart);
|
|
this.setSelectionStart(leftWordBoundary);
|
|
} else {
|
|
this._removeSingleCharAndStyle(this.selectionStart);
|
|
this.setSelectionStart(this.selectionStart - 1);
|
|
}
|
|
}
|
|
});
|
|
|
|
(function() {
|
|
var toFixed = fabric.util.toFixed, NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS;
|
|
fabric.util.object.extend(fabric.IText.prototype, {
|
|
_setSVGTextLineText: function(lineIndex, textSpans, height, textLeftOffset, textTopOffset, textBgRects) {
|
|
if (!this._getLineStyle(lineIndex)) {
|
|
fabric.Text.prototype._setSVGTextLineText.call(this, lineIndex, textSpans, height, textLeftOffset, textTopOffset);
|
|
} else {
|
|
this._setSVGTextLineChars(lineIndex, textSpans, height, textLeftOffset, textBgRects);
|
|
}
|
|
},
|
|
_setSVGTextLineChars: function(lineIndex, textSpans, height, textLeftOffset, textBgRects) {
|
|
var chars = this._textLines[lineIndex], charOffset = 0, lineLeftOffset = this._getLineLeftOffset(this._getLineWidth(this.ctx, lineIndex)) - this.width / 2, lineOffset = this._getSVGLineTopOffset(lineIndex), heightOfLine = this._getHeightOfLine(this.ctx, lineIndex);
|
|
for (var i = 0, len = chars.length; i < len; i++) {
|
|
var styleDecl = this._getStyleDeclaration(lineIndex, i) || {};
|
|
textSpans.push(this._createTextCharSpan(chars[i], styleDecl, lineLeftOffset, lineOffset.lineTop + lineOffset.offset, charOffset));
|
|
var charWidth = this._getWidthOfChar(this.ctx, chars[i], lineIndex, i);
|
|
if (styleDecl.textBackgroundColor) {
|
|
textBgRects.push(this._createTextCharBg(styleDecl, lineLeftOffset, lineOffset.lineTop, heightOfLine, charWidth, charOffset));
|
|
}
|
|
charOffset += charWidth;
|
|
}
|
|
},
|
|
_getSVGLineTopOffset: function(lineIndex) {
|
|
var lineTopOffset = 0, lastHeight = 0;
|
|
for (var j = 0; j < lineIndex; j++) {
|
|
lineTopOffset += this._getHeightOfLine(this.ctx, j);
|
|
}
|
|
lastHeight = this._getHeightOfLine(this.ctx, j);
|
|
return {
|
|
lineTop: lineTopOffset,
|
|
offset: (this._fontSizeMult - this._fontSizeFraction) * lastHeight / (this.lineHeight * this._fontSizeMult)
|
|
};
|
|
},
|
|
_createTextCharBg: function(styleDecl, lineLeftOffset, lineTopOffset, heightOfLine, charWidth, charOffset) {
|
|
return [ '\t\t<rect fill="', styleDecl.textBackgroundColor, '" x="', toFixed(lineLeftOffset + charOffset, NUM_FRACTION_DIGITS), '" y="', toFixed(lineTopOffset - this.height / 2, NUM_FRACTION_DIGITS), '" width="', toFixed(charWidth, NUM_FRACTION_DIGITS), '" height="', toFixed(heightOfLine / this.lineHeight, NUM_FRACTION_DIGITS), '"></rect>\n' ].join("");
|
|
},
|
|
_createTextCharSpan: function(_char, styleDecl, lineLeftOffset, lineTopOffset, charOffset) {
|
|
var fillStyles = this.getSvgStyles.call(fabric.util.object.extend({
|
|
visible: true,
|
|
fill: this.fill,
|
|
stroke: this.stroke,
|
|
type: "text",
|
|
getSvgFilter: fabric.Object.prototype.getSvgFilter
|
|
}, styleDecl));
|
|
return [ '\t\t\t<tspan x="', toFixed(lineLeftOffset + charOffset, NUM_FRACTION_DIGITS), '" y="', toFixed(lineTopOffset - this.height / 2, NUM_FRACTION_DIGITS), '" ', styleDecl.fontFamily ? 'font-family="' + styleDecl.fontFamily.replace(/"/g, "'") + '" ' : "", styleDecl.fontSize ? 'font-size="' + styleDecl.fontSize + '" ' : "", styleDecl.fontStyle ? 'font-style="' + styleDecl.fontStyle + '" ' : "", styleDecl.fontWeight ? 'font-weight="' + styleDecl.fontWeight + '" ' : "", styleDecl.textDecoration ? 'text-decoration="' + styleDecl.textDecoration + '" ' : "", 'style="', fillStyles, '">', fabric.util.string.escapeXml(_char), "</tspan>\n" ].join("");
|
|
}
|
|
});
|
|
})();
|
|
|
|
(function(global) {
|
|
"use strict";
|
|
var fabric = global.fabric || (global.fabric = {}), clone = fabric.util.object.clone;
|
|
fabric.Textbox = fabric.util.createClass(fabric.IText, fabric.Observable, {
|
|
type: "textbox",
|
|
minWidth: 20,
|
|
dynamicMinWidth: 0,
|
|
__cachedLines: null,
|
|
lockScalingY: true,
|
|
lockScalingFlip: true,
|
|
initialize: function(text, options) {
|
|
this.ctx = fabric.util.createCanvasElement().getContext("2d");
|
|
this.callSuper("initialize", text, options);
|
|
this.setControlsVisibility(fabric.Textbox.getTextboxControlVisibility());
|
|
this._dimensionAffectingProps.width = true;
|
|
},
|
|
_initDimensions: function(ctx) {
|
|
if (this.__skipDimension) {
|
|
return;
|
|
}
|
|
if (!ctx) {
|
|
ctx = fabric.util.createCanvasElement().getContext("2d");
|
|
this._setTextStyles(ctx);
|
|
}
|
|
this.dynamicMinWidth = 0;
|
|
this._textLines = this._splitTextIntoLines();
|
|
if (this.dynamicMinWidth > this.width) {
|
|
this._set("width", this.dynamicMinWidth);
|
|
}
|
|
this._clearCache();
|
|
this.height = this._getTextHeight(ctx);
|
|
},
|
|
_generateStyleMap: function() {
|
|
var realLineCount = 0, realLineCharCount = 0, charCount = 0, map = {};
|
|
for (var i = 0; i < this._textLines.length; i++) {
|
|
if (this.text[charCount] === "\n") {
|
|
realLineCharCount = 0;
|
|
charCount++;
|
|
realLineCount++;
|
|
} else if (this.text[charCount] === " ") {
|
|
realLineCharCount++;
|
|
charCount++;
|
|
}
|
|
map[i] = {
|
|
line: realLineCount,
|
|
offset: realLineCharCount
|
|
};
|
|
charCount += this._textLines[i].length;
|
|
realLineCharCount += this._textLines[i].length;
|
|
}
|
|
return map;
|
|
},
|
|
_getStyleDeclaration: function(lineIndex, charIndex, returnCloneOrEmpty) {
|
|
if (this._styleMap) {
|
|
var map = this._styleMap[lineIndex];
|
|
if (!map) {
|
|
return returnCloneOrEmpty ? {} : null;
|
|
}
|
|
lineIndex = map.line;
|
|
charIndex = map.offset + charIndex;
|
|
}
|
|
return this.callSuper("_getStyleDeclaration", lineIndex, charIndex, returnCloneOrEmpty);
|
|
},
|
|
_setStyleDeclaration: function(lineIndex, charIndex, style) {
|
|
var map = this._styleMap[lineIndex];
|
|
lineIndex = map.line;
|
|
charIndex = map.offset + charIndex;
|
|
this.styles[lineIndex][charIndex] = style;
|
|
},
|
|
_deleteStyleDeclaration: function(lineIndex, charIndex) {
|
|
var map = this._styleMap[lineIndex];
|
|
lineIndex = map.line;
|
|
charIndex = map.offset + charIndex;
|
|
delete this.styles[lineIndex][charIndex];
|
|
},
|
|
_getLineStyle: function(lineIndex) {
|
|
var map = this._styleMap[lineIndex];
|
|
return this.styles[map.line];
|
|
},
|
|
_setLineStyle: function(lineIndex, style) {
|
|
var map = this._styleMap[lineIndex];
|
|
this.styles[map.line] = style;
|
|
},
|
|
_deleteLineStyle: function(lineIndex) {
|
|
var map = this._styleMap[lineIndex];
|
|
delete this.styles[map.line];
|
|
},
|
|
_wrapText: function(ctx, text) {
|
|
var lines = text.split(this._reNewline), wrapped = [], i;
|
|
for (i = 0; i < lines.length; i++) {
|
|
wrapped = wrapped.concat(this._wrapLine(ctx, lines[i], i));
|
|
}
|
|
return wrapped;
|
|
},
|
|
_measureText: function(ctx, text, lineIndex, charOffset) {
|
|
var width = 0;
|
|
charOffset = charOffset || 0;
|
|
for (var i = 0, len = text.length; i < len; i++) {
|
|
width += this._getWidthOfChar(ctx, text[i], lineIndex, i + charOffset);
|
|
}
|
|
return width;
|
|
},
|
|
_wrapLine: function(ctx, text, lineIndex) {
|
|
var lineWidth = 0, lines = [], line = "", words = text.split(" "), word = "", offset = 0, infix = " ", wordWidth = 0, infixWidth = 0, largestWordWidth = 0, lineJustStarted = true;
|
|
for (var i = 0; i < words.length; i++) {
|
|
word = words[i];
|
|
wordWidth = this._measureText(ctx, word, lineIndex, offset);
|
|
offset += word.length;
|
|
lineWidth += infixWidth + wordWidth;
|
|
if (lineWidth >= this.width && !lineJustStarted) {
|
|
lines.push(line);
|
|
line = "";
|
|
lineWidth = wordWidth;
|
|
lineJustStarted = true;
|
|
}
|
|
if (!lineJustStarted) {
|
|
line += infix;
|
|
}
|
|
line += word;
|
|
infixWidth = this._measureText(ctx, infix, lineIndex, offset);
|
|
offset++;
|
|
lineJustStarted = false;
|
|
if (wordWidth > largestWordWidth) {
|
|
largestWordWidth = wordWidth;
|
|
}
|
|
}
|
|
i && lines.push(line);
|
|
if (largestWordWidth > this.dynamicMinWidth) {
|
|
this.dynamicMinWidth = largestWordWidth;
|
|
}
|
|
return lines;
|
|
},
|
|
_splitTextIntoLines: function() {
|
|
var originalAlign = this.textAlign;
|
|
this.ctx.save();
|
|
this._setTextStyles(this.ctx);
|
|
this.textAlign = "left";
|
|
var lines = this._wrapText(this.ctx, this.text);
|
|
this.textAlign = originalAlign;
|
|
this.ctx.restore();
|
|
this._textLines = lines;
|
|
this._styleMap = this._generateStyleMap();
|
|
return lines;
|
|
},
|
|
setOnGroup: function(key, value) {
|
|
if (key === "scaleX") {
|
|
this.set("scaleX", Math.abs(1 / value));
|
|
this.set("width", this.get("width") * value / (typeof this.__oldScaleX === "undefined" ? 1 : this.__oldScaleX));
|
|
this.__oldScaleX = value;
|
|
}
|
|
},
|
|
get2DCursorLocation: function(selectionStart) {
|
|
if (typeof selectionStart === "undefined") {
|
|
selectionStart = this.selectionStart;
|
|
}
|
|
var numLines = this._textLines.length, removed = 0;
|
|
for (var i = 0; i < numLines; i++) {
|
|
var line = this._textLines[i], lineLen = line.length;
|
|
if (selectionStart <= removed + lineLen) {
|
|
return {
|
|
lineIndex: i,
|
|
charIndex: selectionStart - removed
|
|
};
|
|
}
|
|
removed += lineLen;
|
|
if (this.text[removed] === "\n" || this.text[removed] === " ") {
|
|
removed++;
|
|
}
|
|
}
|
|
return {
|
|
lineIndex: numLines - 1,
|
|
charIndex: this._textLines[numLines - 1].length
|
|
};
|
|
},
|
|
_getCursorBoundariesOffsets: function(chars, typeOfBoundaries) {
|
|
var topOffset = 0, leftOffset = 0, cursorLocation = this.get2DCursorLocation(), lineChars = this._textLines[cursorLocation.lineIndex].split(""), lineLeftOffset = this._getLineLeftOffset(this._getLineWidth(this.ctx, cursorLocation.lineIndex));
|
|
for (var i = 0; i < cursorLocation.charIndex; i++) {
|
|
leftOffset += this._getWidthOfChar(this.ctx, lineChars[i], cursorLocation.lineIndex, i);
|
|
}
|
|
for (i = 0; i < cursorLocation.lineIndex; i++) {
|
|
topOffset += this._getHeightOfLine(this.ctx, i);
|
|
}
|
|
if (typeOfBoundaries === "cursor") {
|
|
topOffset += (1 - this._fontSizeFraction) * this._getHeightOfLine(this.ctx, cursorLocation.lineIndex) / this.lineHeight - this.getCurrentCharFontSize(cursorLocation.lineIndex, cursorLocation.charIndex) * (1 - this._fontSizeFraction);
|
|
}
|
|
return {
|
|
top: topOffset,
|
|
left: leftOffset,
|
|
lineLeft: lineLeftOffset
|
|
};
|
|
},
|
|
getMinWidth: function() {
|
|
return Math.max(this.minWidth, this.dynamicMinWidth);
|
|
},
|
|
toObject: function(propertiesToInclude) {
|
|
return fabric.util.object.extend(this.callSuper("toObject", propertiesToInclude), {
|
|
minWidth: this.minWidth
|
|
});
|
|
}
|
|
});
|
|
fabric.Textbox.fromObject = function(object) {
|
|
return new fabric.Textbox(object.text, clone(object));
|
|
};
|
|
fabric.Textbox.getTextboxControlVisibility = function() {
|
|
return {
|
|
tl: false,
|
|
tr: false,
|
|
br: false,
|
|
bl: false,
|
|
ml: true,
|
|
mt: false,
|
|
mr: true,
|
|
mb: false,
|
|
mtr: true
|
|
};
|
|
};
|
|
})(typeof exports !== "undefined" ? exports : this);
|
|
|
|
(function() {
|
|
var setObjectScaleOverridden = fabric.Canvas.prototype._setObjectScale;
|
|
fabric.Canvas.prototype._setObjectScale = function(localMouse, transform, lockScalingX, lockScalingY, by, lockScalingFlip, _dim) {
|
|
var t = transform.target;
|
|
if (t instanceof fabric.Textbox) {
|
|
var w = t.width * (localMouse.x / transform.scaleX / (t.width + t.strokeWidth));
|
|
if (w >= t.getMinWidth()) {
|
|
t.set("width", w);
|
|
return true;
|
|
}
|
|
} else {
|
|
return setObjectScaleOverridden.call(fabric.Canvas.prototype, localMouse, transform, lockScalingX, lockScalingY, by, lockScalingFlip, _dim);
|
|
}
|
|
};
|
|
fabric.Group.prototype._refreshControlsVisibility = function() {
|
|
if (typeof fabric.Textbox === "undefined") {
|
|
return;
|
|
}
|
|
for (var i = this._objects.length; i--; ) {
|
|
if (this._objects[i] instanceof fabric.Textbox) {
|
|
this.setControlsVisibility(fabric.Textbox.getTextboxControlVisibility());
|
|
return;
|
|
}
|
|
}
|
|
};
|
|
var clone = fabric.util.object.clone;
|
|
fabric.util.object.extend(fabric.Textbox.prototype, {
|
|
_removeExtraneousStyles: function() {
|
|
for (var prop in this._styleMap) {
|
|
if (!this._textLines[prop]) {
|
|
delete this.styles[this._styleMap[prop].line];
|
|
}
|
|
}
|
|
},
|
|
insertCharStyleObject: function(lineIndex, charIndex, style) {
|
|
var map = this._styleMap[lineIndex];
|
|
lineIndex = map.line;
|
|
charIndex = map.offset + charIndex;
|
|
fabric.IText.prototype.insertCharStyleObject.apply(this, [ lineIndex, charIndex, style ]);
|
|
},
|
|
insertNewlineStyleObject: function(lineIndex, charIndex, isEndOfLine) {
|
|
var map = this._styleMap[lineIndex];
|
|
lineIndex = map.line;
|
|
charIndex = map.offset + charIndex;
|
|
fabric.IText.prototype.insertNewlineStyleObject.apply(this, [ lineIndex, charIndex, isEndOfLine ]);
|
|
},
|
|
shiftLineStyles: function(lineIndex, offset) {
|
|
var clonedStyles = clone(this.styles), map = this._styleMap[lineIndex];
|
|
lineIndex = map.line;
|
|
for (var line in this.styles) {
|
|
var numericLine = parseInt(line, 10);
|
|
if (numericLine > lineIndex) {
|
|
this.styles[numericLine + offset] = clonedStyles[numericLine];
|
|
if (!clonedStyles[numericLine - offset]) {
|
|
delete this.styles[numericLine];
|
|
}
|
|
}
|
|
}
|
|
},
|
|
_getTextOnPreviousLine: function(lIndex) {
|
|
var textOnPreviousLine = this._textLines[lIndex - 1];
|
|
while (this._styleMap[lIndex - 2] && this._styleMap[lIndex - 2].line === this._styleMap[lIndex - 1].line) {
|
|
textOnPreviousLine = this._textLines[lIndex - 2] + textOnPreviousLine;
|
|
lIndex--;
|
|
}
|
|
return textOnPreviousLine;
|
|
},
|
|
removeStyleObject: function(isBeginningOfLine, index) {
|
|
var cursorLocation = this.get2DCursorLocation(index), map = this._styleMap[cursorLocation.lineIndex], lineIndex = map.line, charIndex = map.offset + cursorLocation.charIndex;
|
|
this._removeStyleObject(isBeginningOfLine, cursorLocation, lineIndex, charIndex);
|
|
}
|
|
});
|
|
})();
|
|
|
|
(function() {
|
|
var override = fabric.IText.prototype._getNewSelectionStartFromOffset;
|
|
fabric.IText.prototype._getNewSelectionStartFromOffset = function(mouseOffset, prevWidth, width, index, jlen) {
|
|
index = override.call(this, mouseOffset, prevWidth, width, index, jlen);
|
|
var tmp = 0, removed = 0;
|
|
for (var i = 0; i < this._textLines.length; i++) {
|
|
tmp += this._textLines[i].length;
|
|
if (tmp + removed >= index) {
|
|
break;
|
|
}
|
|
if (this.text[tmp + removed] === "\n" || this.text[tmp + removed] === " ") {
|
|
removed++;
|
|
}
|
|
}
|
|
return index - i + removed;
|
|
};
|
|
})();
|
|
|
|
(function() {
|
|
if (typeof document !== "undefined" && typeof window !== "undefined") {
|
|
return;
|
|
}
|
|
var DOMParser = require("xmldom").DOMParser, URL = require("url"), HTTP = require("http"), HTTPS = require("https"), Canvas = require("canvas"), Image = require("canvas").Image;
|
|
function request(url, encoding, callback) {
|
|
var oURL = URL.parse(url);
|
|
if (!oURL.port) {
|
|
oURL.port = oURL.protocol.indexOf("https:") === 0 ? 443 : 80;
|
|
}
|
|
var reqHandler = oURL.protocol.indexOf("https:") === 0 ? HTTPS : HTTP, req = reqHandler.request({
|
|
hostname: oURL.hostname,
|
|
port: oURL.port,
|
|
path: oURL.path,
|
|
method: "GET"
|
|
}, function(response) {
|
|
var body = "";
|
|
if (encoding) {
|
|
response.setEncoding(encoding);
|
|
}
|
|
response.on("end", function() {
|
|
callback(body);
|
|
});
|
|
response.on("data", function(chunk) {
|
|
if (response.statusCode === 200) {
|
|
body += chunk;
|
|
}
|
|
});
|
|
});
|
|
req.on("error", function(err) {
|
|
if (err.errno === process.ECONNREFUSED) {
|
|
fabric.log("ECONNREFUSED: connection refused to " + oURL.hostname + ":" + oURL.port);
|
|
} else {
|
|
fabric.log(err.message);
|
|
}
|
|
callback(null);
|
|
});
|
|
req.end();
|
|
}
|
|
function requestFs(path, callback) {
|
|
var fs = require("fs");
|
|
fs.readFile(path, function(err, data) {
|
|
if (err) {
|
|
fabric.log(err);
|
|
throw err;
|
|
} else {
|
|
callback(data);
|
|
}
|
|
});
|
|
}
|
|
fabric.util.loadImage = function(url, callback, context) {
|
|
function createImageAndCallBack(data) {
|
|
if (data) {
|
|
img.src = new Buffer(data, "binary");
|
|
img._src = url;
|
|
callback && callback.call(context, img);
|
|
} else {
|
|
img = null;
|
|
callback && callback.call(context, null, true);
|
|
}
|
|
}
|
|
var img = new Image();
|
|
if (url && (url instanceof Buffer || url.indexOf("data") === 0)) {
|
|
img.src = img._src = url;
|
|
callback && callback.call(context, img);
|
|
} else if (url && url.indexOf("http") !== 0) {
|
|
requestFs(url, createImageAndCallBack);
|
|
} else if (url) {
|
|
request(url, "binary", createImageAndCallBack);
|
|
} else {
|
|
callback && callback.call(context, url);
|
|
}
|
|
};
|
|
fabric.loadSVGFromURL = function(url, callback, reviver) {
|
|
url = url.replace(/^\n\s*/, "").replace(/\?.*$/, "").trim();
|
|
if (url.indexOf("http") !== 0) {
|
|
requestFs(url, function(body) {
|
|
fabric.loadSVGFromString(body.toString(), callback, reviver);
|
|
});
|
|
} else {
|
|
request(url, "", function(body) {
|
|
fabric.loadSVGFromString(body, callback, reviver);
|
|
});
|
|
}
|
|
};
|
|
fabric.loadSVGFromString = function(string, callback, reviver) {
|
|
var doc = new DOMParser().parseFromString(string);
|
|
fabric.parseSVGDocument(doc.documentElement, function(results, options) {
|
|
callback && callback(results, options);
|
|
}, reviver);
|
|
};
|
|
fabric.util.getScript = function(url, callback) {
|
|
request(url, "", function(body) {
|
|
eval(body);
|
|
callback && callback();
|
|
});
|
|
};
|
|
fabric.Image.fromObject = function(object, callback) {
|
|
fabric.util.loadImage(object.src, function(img) {
|
|
var oImg = new fabric.Image(img);
|
|
oImg._initConfig(object);
|
|
oImg._initFilters(object.filters, function(filters) {
|
|
oImg.filters = filters || [];
|
|
oImg._initFilters(object.resizeFilters, function(resizeFilters) {
|
|
oImg.resizeFilters = resizeFilters || [];
|
|
callback && callback(oImg);
|
|
});
|
|
});
|
|
});
|
|
};
|
|
fabric.createCanvasForNode = function(width, height, options, nodeCanvasOptions) {
|
|
nodeCanvasOptions = nodeCanvasOptions || options;
|
|
var canvasEl = fabric.document.createElement("canvas"), nodeCanvas = new Canvas(width || 600, height || 600, nodeCanvasOptions), nodeCacheCanvas = new Canvas(width || 600, height || 600, nodeCanvasOptions);
|
|
canvasEl.style = {};
|
|
canvasEl.width = nodeCanvas.width;
|
|
canvasEl.height = nodeCanvas.height;
|
|
var FabricCanvas = fabric.Canvas || fabric.StaticCanvas, fabricCanvas = new FabricCanvas(canvasEl, options);
|
|
fabricCanvas.contextContainer = nodeCanvas.getContext("2d");
|
|
fabricCanvas.nodeCanvas = nodeCanvas;
|
|
fabricCanvas.contextCache = nodeCacheCanvas.getContext("2d");
|
|
fabricCanvas.nodeCacheCanvas = nodeCacheCanvas;
|
|
fabricCanvas.Font = Canvas.Font;
|
|
return fabricCanvas;
|
|
};
|
|
fabric.StaticCanvas.prototype.createPNGStream = function() {
|
|
return this.nodeCanvas.createPNGStream();
|
|
};
|
|
fabric.StaticCanvas.prototype.createJPEGStream = function(opts) {
|
|
return this.nodeCanvas.createJPEGStream(opts);
|
|
};
|
|
var origSetWidth = fabric.StaticCanvas.prototype.setWidth;
|
|
fabric.StaticCanvas.prototype.setWidth = function(width, options) {
|
|
origSetWidth.call(this, width, options);
|
|
this.nodeCanvas.width = width;
|
|
return this;
|
|
};
|
|
if (fabric.Canvas) {
|
|
fabric.Canvas.prototype.setWidth = fabric.StaticCanvas.prototype.setWidth;
|
|
}
|
|
var origSetHeight = fabric.StaticCanvas.prototype.setHeight;
|
|
fabric.StaticCanvas.prototype.setHeight = function(height, options) {
|
|
origSetHeight.call(this, height, options);
|
|
this.nodeCanvas.height = height;
|
|
return this;
|
|
};
|
|
if (fabric.Canvas) {
|
|
fabric.Canvas.prototype.setHeight = fabric.StaticCanvas.prototype.setHeight;
|
|
}
|
|
})();
|
|
|
|
window.fabric = fabric;
|
|
|
|
if (typeof define === "function" && define.amd) {
|
|
define([], function() {
|
|
return fabric;
|
|
});
|
|
} |