Merge pull request #2407 from asturur/deep-clo

Deep clone transformMatrix, strokeDashArray and styles properties

src/shapes/itext.class.js

@@ -1121,8 +1121,16 @@
      * @return {Object} object representation of an instance
      */
     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: clone(this.styles)
+        styles: clonedStyles
       });
     }
   });

src/shapes/object.class.js

@@ -783,7 +783,7 @@
             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,
+            strokeDashArray:          this.strokeDashArray ? this.strokeDashArray.concat() : this.strokeDashArray,
             strokeLineCap:            this.strokeLineCap,
             strokeLineJoin:           this.strokeLineJoin,
             strokeMiterLimit:         toFixed(this.strokeMiterLimit, NUM_FRACTION_DIGITS),
@@ -799,7 +799,7 @@
             backgroundColor:          this.backgroundColor,
             fillRule:                 this.fillRule,
             globalCompositeOperation: this.globalCompositeOperation,
-            transformMatrix:          this.transformMatrix
+            transformMatrix:          this.transformMatrix ? this.transformMatrix.concat() : this.transformMatrix
           };
 
       if (!this.includeDefaultValues) {

test/unit/itext.js

@@ -110,6 +110,10 @@
 
     var obj = iText.toObject();
     deepEqual(obj.styles, styles);
+    notEqual(obj.styles[0], styles[0]);
+    notEqual(obj.styles[0][1], styles[0][1]);
+    deepEqual(obj.styles[0], styles[0]);
+    deepEqual(obj.styles[0][1], styles[0][1]);
   });
 
   test('setSelectionStart', function() {

test/unit/object.js

@@ -292,10 +292,12 @@
       strokeLineJoin: 'bevil',
       strokeMiterLimit: 5,
       flipX: true,
-      opacity: 0.13
+      opacity: 0.13,
+      transformMatrix: [3, 0, 3, 1, 0, 0]
     };
 
-    var cObj = new fabric.Object();
+    var cObj = new fabric.Object(),
+        toObjectObj;
     cObj.includeDefaultValues = false;
     deepEqual(emptyObjectRepr, cObj.toObject());
 
@@ -308,9 +310,15 @@
         .set('strokeDashArray', [5, 2])
         .set('strokeLineCap', 'round')
         .set('strokeLineJoin', 'bevil')
-        .set('strokeMiterLimit', 5);
-
-    deepEqual(augmentedObjectRepr, cObj.toObject());
+        .set('strokeMiterLimit', 5)
+        .set('transformMatrix', [3, 0, 3, 1, 0, 0]);
+    toObjectObj = cObj.toObject();
+    deepEqual(augmentedObjectRepr, toObjectObj);
+    notEqual(augmentedObjectRepr.transformMatrix, toObjectObj.transformMatrix);
+    deepEqual(augmentedObjectRepr.transformMatrix, toObjectObj.transformMatrix);
+    notEqual(augmentedObjectRepr.strokeDashArray, toObjectObj.strokeDashArray);
+    deepEqual(augmentedObjectRepr.strokeDashArray, toObjectObj.strokeDashArray);
+    
   });
 
   test('toDatalessObject', function() {