Changeset 7772

Timestamp:

03/23/07 09:21:42 (22 months ago)

Author:

elazutkin

Message:

gfx: added getTranslatedBoundingBox() method

Location:

trunk

Files:

• src/gfx/shape.js (modified) (1 diff)
• src/gfx/svg.js (modified) (2 diffs)
• tests/gfx/test_tbbox.html (added)

trunk/src/gfx/shape.js

@@ -99 +99 @@
                 //      (see dojo.gfx.defaultRect)
                 return this.bbox;       // dojo.gfx.Rectangle
+        },
+        getTransformedBoundingBox: function(){
+                // summary: returns an array of four points or null
+                //      four points represent four corners of the untransformed bounding box
+                if(!this.bbox){
+                        return null;    // null
+                }
+                var g = dojo.gfx.matrix;
+                var m = this._getRealMatrix();
+                var b = this.getBoundingBox();
+                var r = [];
+                r.push(g.multiplyPoint(m, b.x, b.y));
+                r.push(g.multiplyPoint(m, b.x + b.width, b.y));
+                r.push(g.multiplyPoint(m, b.x + b.width, b.y + b.height));
+                r.push(g.multiplyPoint(m, b.x, b.y + b.height));
+                return r;       // Array
         },
         getEventSource: function(){

trunk/src/gfx/svg.js

@@ -171 +171 @@
         
         _applyTransform: function() {
-                var matrix = this._getRealMatrix();
+                var matrix = this.matrix;
                 if(matrix){
                         var tm = this.matrix;
@@ -354 +354 @@
                         this.shape = this.attachShape(rawNode);
                 }
+        },
+        
+        _getRealMatrix: function(){
+                var m = this.matrix;
+                var p = this.parent;
+                while(p){
+                        if(p.matrix){
+                                m = dojo.gfx.matrix.multiply(p.matrix, m);
+                        }
+                        p = p.parent;
+                }
+                return m;
         }
 });