Doc additions

Add examples and links to jsfiddle to `fabric.Object.setGradient`, `fabric.Object.setPatternFill`, `fabric.Object.setShadow` and `fabric.Canvas.toDataURL

src/mixins/canvas_dataurl_exporter.mixin.js

@@ -11,6 +11,25 @@ fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.Stati
    * @param {Number} [options.width] Cropping width. Introduced in v1.2.14
    * @param {Number} [options.height] Cropping height. Introduced in v1.2.14
    * @return {String} Returns a data: URL containing a representation of the object in the format specified by options.format
+   * @see {@link http://jsfiddle.net/fabricjs/NfZVb/|jsFiddle demo}
+   * @example <caption>Generate jpeg dataURL with lower quality</caption>
+   * var dataURL = canvas.toDataURL({
+   *   format: 'jpeg',
+   *   quality: 0.8
+   * });
+   * @example <caption>Generate cropped png dataURL (clipping of canvas)</caption>
+   * var dataURL = canvas.toDataURL({
+   *   format: 'png',
+   *   left: 100,
+   *   top: 100,
+   *   width: 200,
+   *   height: 200
+   * });
+   * @example <caption>Generate double scaled png dataURL</caption>
+   * var dataURL = canvas.toDataURL({
+   *   format: 'png',
+   *   multiplier: 2
+   * });
    */
   toDataURL: function (options) {
     options || (options = { });

src/shapes/object.class.js

@@ -1188,6 +1188,37 @@
      * @param {Object} [options.colorStops] Color stops object eg. {0: 'ff0000', 1: '000000'}
      * @return {fabric.Object} thisArg
      * @chainable
+     * @see {@link http://jsfiddle.net/fabricjs/58y8b/|jsFiddle demo}
+     * @example <caption>Set linear gradient</caption>
+     * object.setGradient('fill', {
+     *   type: 'linear',
+     *   x1: -object.width / 2,
+     *   y1: 0,
+     *   x2: object.width / 2,
+     *   y2: 0,
+     *   colorStops: {
+     *     0: 'red',
+     *     0.5: '#005555',
+     *     1: 'rgba(0,0,255,0.5)'
+     *   }
+     * });
+     * canvas.renderAll();
+     * @example <caption>Set radial gradient</caption>
+     * object.setGradient('fill', {
+     *   type: 'radial',
+     *   x1: 0,
+     *   y1: 0,
+     *   x2: 0,
+     *   y2: 0,
+     *   r1: object.width / 2,
+     *   r2: 10,
+     *   colorStops: {
+     *     0: 'red',
+     *     0.5: '#005555',
+     *     1: 'rgba(0,0,255,0.5)'
+     *   }
+     * });
+     * canvas.renderAll();
      */
     setGradient: function(property, options) {
       options || (options = { });
@@ -1224,6 +1255,15 @@
      * @param {Number} [options.offsetY=0] Pattern vertical offset from object's left/top corner
      * @return {fabric.Object} thisArg
      * @chainable
+     * @see {@link http://jsfiddle.net/fabricjs/QT3pa/|jsFiddle demo}
+     * @example <caption>Set pattern</caption>
+     * fabric.util.loadImage('http://fabricjs.com/assets/escheresque_ste.png', function(img) {
+     *   object.setPatternFill({
+     *     source: img,
+     *     repeat: 'repeat'
+     *   });
+     *   canvas.renderAll();
+     * });
      */
     setPatternFill: function(options) {
       return this.set('fill', new fabric.Pattern(options));
@@ -1238,6 +1278,18 @@
      * @param {Number} [options.offsetY=0] Shadow vertical offset
      * @return {fabric.Object} thisArg
      * @chainable
+     * @see {@link http://jsfiddle.net/fabricjs/7gvJG/|jsFiddle demo}
+     * @example <caption>Set shadow with string notation</caption>
+     * object.setShadow('2px 2px 10px rgba(0,0,0,0.2)');
+     * canvas.renderAll();
+     * @example <caption>Set shadow with object notation</caption>
+     * object.setShadow({
+     *   color: 'red',
+     *   blur: 10,
+     *   offsetX: 20,
+     *   offsetY: 20
+     * });
+     * canvas.renderAll();
      */
     setShadow: function(options) {
       return this.set('shadow', new fabric.Shadow(options));