Decouple Canvas from DisplayList and map Picture and PictureRecorder more directly to their Skia co…

sky/examples/game/lib/sprite_box.dart

+import 'dart:sky' as sky;

[abarth-chromium, 2015/06/18 00:03:52]

This file is a "part of" the main game library, which means the imports go in
the main library file.  I believe the main game library already imports
dart:sky, so this isn't needed.  However, I believe it imports it without the
"sky" prefix, which means the paint call below should just be:

void paint(Canvas canvas) {

[iansf, 2015/06/20 00:02:38]

Done.

+
 part of sprites;
 
 enum SpriteBoxTransformMode {
   nativePoints,
   letterbox,
   stretch,
   scaleToFit,
   fixedWidth,
   fixedHeight,
 }
@@ skipping 51 matching lines @@
     size = constraints.constrain(Size.infinite);
   }
 
   // Event handling
 
   void handleEvent(Event event, BoxHitTestEntry entry) {
   }
 
   // Rendering
 
-  void paint(RenderObjectDisplayList canvas) {
+  void paint(sky.Canvas canvas) {
     // Move to correct coordinate space before drawing
     double scaleX = 1.0;
     double scaleY = 1.0;
     double offsetX = 0.0;
     double offsetY = 0.0;
 
     switch(transformMode) {
       case SpriteBoxTransformMode.stretch:
         scaleX = size.width/_systemWidth;
         scaleY = size.height/_systemHeight;
@@ skipping 93 matching lines @@
     for (Node child in node.children) {
       _addNodesAtPosition(child, position, list);
     }
     // Do the hit test
     Point posInNodeSpace = node.convertPointToNodeSpace(position);
     if (node.hitTest(posInNodeSpace)) {
       list.add(node);
     }
   }
 }