OLD | NEW |
1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 import 'dart:math'; | 5 import 'dart:math'; |
6 import 'dart:sky'; | 6 import 'dart:sky'; |
7 import 'package:sky/framework/app.dart'; | 7 import 'package:sky/framework/app.dart'; |
8 import 'package:sky/framework/rendering/box.dart'; | 8 import 'package:sky/framework/rendering/box.dart'; |
9 import 'package:sky/framework/rendering/node.dart'; | 9 import 'package:sky/framework/rendering/object.dart'; |
10 | 10 |
11 // Material design colors. :p | 11 // Material design colors. :p |
12 List<int> colors = [ | 12 List<int> colors = [ |
13 0xFF009688, | 13 0xFF009688, |
14 0xFFFFC107, | 14 0xFFFFC107, |
15 0xFF9C27B0, | 15 0xFF9C27B0, |
16 0xFF03A9F4, | 16 0xFF03A9F4, |
17 0xFF673AB7, | 17 0xFF673AB7, |
18 0xFFCDDC39, | 18 0xFFCDDC39, |
19 ]; | 19 ]; |
20 | 20 |
21 class Dot { | 21 class Dot { |
22 final Paint _paint; | 22 final Paint _paint; |
23 double x = 0.0; | 23 double x = 0.0; |
24 double y = 0.0; | 24 double y = 0.0; |
25 double radius = 0.0; | 25 double radius = 0.0; |
26 | 26 |
27 Dot({int color}) : _paint = new Paint()..color = color; | 27 Dot({int color}) : _paint = new Paint()..color = color; |
28 | 28 |
29 void update(PointerEvent event) { | 29 void update(PointerEvent event) { |
30 x = event.x; | 30 x = event.x; |
31 y = event.y; | 31 y = event.y; |
32 radius = 5 + (95 * event.pressure); | 32 radius = 5 + (95 * event.pressure); |
33 } | 33 } |
34 | 34 |
35 void paint(RenderNodeDisplayList canvas) { | 35 void paint(RenderObjectDisplayList canvas) { |
36 canvas.drawCircle(x, y, radius, _paint); | 36 canvas.drawCircle(x, y, radius, _paint); |
37 } | 37 } |
38 } | 38 } |
39 | 39 |
40 class RenderTouchDemo extends RenderBox { | 40 class RenderTouchDemo extends RenderBox { |
41 Map<int, Dot> dots = new Map(); | 41 Map<int, Dot> dots = new Map(); |
42 | 42 |
43 RenderTouchDemo(); | 43 RenderTouchDemo(); |
44 | 44 |
45 void handleEvent(sky.Event event) { | 45 void handleEvent(sky.Event event) { |
(...skipping 12 matching lines...) Expand all Loading... |
58 dots[event.pointer].update(event); | 58 dots[event.pointer].update(event); |
59 break; | 59 break; |
60 } | 60 } |
61 markNeedsPaint(); | 61 markNeedsPaint(); |
62 } | 62 } |
63 | 63 |
64 void performLayout() { | 64 void performLayout() { |
65 size = constraints.constrain(new Size.infinite()); | 65 size = constraints.constrain(new Size.infinite()); |
66 } | 66 } |
67 | 67 |
68 void paint(RenderNodeDisplayList canvas) { | 68 void paint(RenderObjectDisplayList canvas) { |
69 dots.forEach((_, Dot dot) { | 69 dots.forEach((_, Dot dot) { |
70 dot.paint(canvas); | 70 dot.paint(canvas); |
71 }); | 71 }); |
72 } | 72 } |
73 } | 73 } |
74 | 74 |
75 AppView app; | 75 AppView app; |
76 | 76 |
77 void main() { | 77 void main() { |
78 app = new AppView(new RenderTouchDemo()); | 78 app = new AppView(new RenderTouchDemo()); |
79 } | 79 } |
OLD | NEW |