Exposing Point & Rect types

samples/spirodraw/web/colorpicker.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of spirodraw;
 
 typedef void PickerListener(String selectedColor);
 
 class ColorPicker {
   static const hexValues = const ['00', '33', '66', '99', 'CC', 'FF'];
@@ skipping 21 matching lines @@
   String get selectedColor => _selectedColor;
 
   void set selectedColor(String color) {
     _selectedColor = color;
 
     showSelected();
     fireSelected();
   }
 
   void onMouseMove(MouseEvent event) {
-    int x = event.offsetX;
-    int y = event.offsetY - 40;
+    int x = event.offset.x;
+    int y = event.offset.y - 40;
     if (( y < 0) || (x >= width)) {
       return;
     }
     ctx.fillStyle = getHexString(getColorIndex(x, y));
     ctx.fillRect(0, 0, width/2, 30);
   }
 
   void onMouseDown(MouseEvent event) {
     Element elt = event.target;
     event.cancelBubble = true;
-    int x = event.offsetX;
-    int y = event.offsetY - 40;
+    int x = event.offset.x;
+    int y = event.offset.y - 40;
     if ((y < 0) || (x >= width)) {
       return;
     }
     selectedColor = getHexString(getColorIndex(x, y));
   }
 
   /**
    * Adds a [PickerListener] to receive updates.
    */
   void addListener(PickerListener listener) {
@@ skipping 44 matching lines @@
     int i = value.floor().toInt();
 
     int r = (i ~/ 36) % 6;
     int g = (i % 36) ~/ 6;
     int b = i % 6;
 
     return '#${hexValues[r]}${hexValues[g]}${hexValues[b]}';
   }
 
 }