mirror of
https://github.com/Hopiu/fabric.js.git
synced 2026-05-22 12:21:51 +00:00
92 lines
2.7 KiB
HTML
92 lines
2.7 KiB
HTML
<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<meta charset="utf-8">
|
|
<title>Animating crosses (custom class)</title>
|
|
<script src="../../dist/all.js"></script>
|
|
<style>
|
|
.canvas-container { border: 1px solid #ccc; display: inline-block; vertical-align: top; }
|
|
h2 span { font-weight: normal; }
|
|
pre { background: #eef; display: inline-block; padding-right: 15px; margin-left: 15px }
|
|
</style>
|
|
<link rel="stylesheet" href="../../lib/master.css" type="text/css">
|
|
</head>
|
|
<body>
|
|
<ul id="header">
|
|
<li><a href="../index.html">Demos</a></li>
|
|
<li><a href="../../benchmarks/index.html">Benchmarks</a></li>
|
|
<li><a href="../../docs/index.html">Docs</a></li>
|
|
<li><a href="../../test/unit/suite_runner.html">Tests</a></li>
|
|
</ul>
|
|
<div id="bd-wrapper">
|
|
|
|
<h2><span>Fabric.js demos</span> · Animating crosses (custom class)</h2>
|
|
|
|
<canvas id="c" width="600" height="500"></canvas>
|
|
|
|
<script id="main">
|
|
var canvas = new fabric.Canvas('c');
|
|
|
|
var Cross = fabric.util.createClass(fabric.Object, {
|
|
|
|
initialize: function(options) {
|
|
this.callSuper('initialize', options);
|
|
this.animDirection = 'up';
|
|
|
|
this.width = 100;
|
|
this.height = 100;
|
|
|
|
this.w1 = this.h2 = 100;
|
|
this.h1 = this.w2 = 30;
|
|
},
|
|
|
|
animateWidthHeight: function() {
|
|
var interval = 2;
|
|
|
|
if (this.h2 >= 30 && this.h2 <= 100) {
|
|
var actualInterval = (this.animDirection === 'up' ? interval : -interval);
|
|
this.h2 += actualInterval;
|
|
this.w1 += actualInterval;
|
|
}
|
|
|
|
if (this.h2 >= 100) {
|
|
this.animDirection = 'down';
|
|
this.h2 -= interval;
|
|
this.w1 -= interval;
|
|
}
|
|
if (this.h2 <= 30) {
|
|
this.animDirection = 'up';
|
|
this.h2 += interval;
|
|
this.w1 += interval;
|
|
}
|
|
},
|
|
|
|
_render: function(ctx) {
|
|
ctx.fillRect(-this.w1 / 2, -this.h1 / 2, this.w1, this.h1);
|
|
ctx.fillRect(-this.w2 / 2, -this.h2 / 2, this.w2, this.h2);
|
|
}
|
|
});
|
|
|
|
canvas.add(new Cross({ top: 100, left: 100 }));
|
|
canvas.add(new Cross({ top: 140, left: 230 }));
|
|
canvas.add(new Cross({ top: 300, left: 210 }));
|
|
canvas.add(new Cross({ top: 40, left: 400 }));
|
|
canvas.add(new Cross({ top: 450, left: 400 }));
|
|
|
|
setTimeout(function animate() {
|
|
canvas.forEachObject(function(obj){ obj.animateWidthHeight() });
|
|
canvas.renderAll();
|
|
setTimeout(animate, 10);
|
|
}, 10);
|
|
</script>
|
|
|
|
<script>
|
|
(function(){
|
|
var preEl = document.createElement('pre');
|
|
preEl.innerHTML = document.getElementById('main').innerHTML;
|
|
document.getElementById('bd-wrapper').appendChild(preEl);
|
|
})();
|
|
</script>
|
|
</div>
|
|
</body>
|
|
</html>
|