getStage() result is now cached. refactored caching system even further.

2026-03-03 16:58:33 +08:00 · 2013-08-11 20:34:54 -07:00
parent 8654391de4
commit d49ae15207
8 changed files with 93 additions and 90 deletions
--- a/src/Canvas.js
+++ b/src/Canvas.js
@@ -116,10 +116,18 @@
         * @method
         * @memberof Kinetic.Canvas.prototype
         */
-        clear: function() {
-            var context = this.getContext();
-            var el = this.getElement();
-            context.clearRect(0, 0, this.getWidth(), this.getHeight());
+        clear: function(clip) {
+            var context = this.getContext(),
+                pos, size;
+            
+            if (clip) {
+                pos = Kinetic.Util._getXY(clip);
+                size = Kinetic.Util._getSize(clip);
+                context.clearRect(pos.x || 0, pos.y || 0, size.width, size.height);
+            }
+            else {
+                context.clearRect(0, 0, this.getWidth(), this.getHeight());
+            }
        },
        /**
         * to data url