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 | 7 |
8 void main() { | 8 Picture draw(int a, int r, int g, int b) { |
9 print("Hello, world"); | |
10 | |
11 double width = view.width; | 9 double width = view.width; |
12 double height = view.height; | 10 double height = view.height; |
13 | 11 |
14 PictureRecorder recorder = new PictureRecorder(width, height); | 12 PictureRecorder recorder = new PictureRecorder(width, height); |
15 double radius = min(width, height) * 0.45; | 13 double radius = min(width, height) * 0.45; |
16 | 14 |
17 Paint paint = new Paint()..setARGB(255, 0, 255, 0); | 15 Paint paint = new Paint()..setARGB(a, r, g, b); |
| 16 recorder.drawCircle(width / 2, height / 2, radius, paint); |
| 17 return recorder.endRecording(); |
| 18 } |
18 | 19 |
19 recorder.drawCircle(width / 2, height / 2, radius, paint); | 20 bool handleEvent(Event event) { |
| 21 if (event.type == "pointerdown") { |
| 22 view.picture = draw(255, 0, 0, 255); |
| 23 view.schedulePaint(); |
| 24 return true; |
| 25 } |
20 | 26 |
21 print("Storing picture"); | 27 if (event.type == "pointerup") { |
22 view.picture = recorder.endRecording(); | 28 view.picture = draw(255, 0, 255, 0); |
| 29 view.schedulePaint(); |
| 30 return true; |
| 31 } |
23 | 32 |
24 print("Scheduling paint"); | 33 return false; |
| 34 } |
| 35 |
| 36 void main() { |
| 37 print("Hello, world"); |
| 38 view.picture = draw(255, 0, 255, 0); |
25 view.schedulePaint(); | 39 view.schedulePaint(); |
| 40 |
| 41 view.setEventCallback(handleEvent); |
26 } | 42 } |
OLD | NEW |