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:sky'; | 5 import 'dart:sky'; |
6 | 6 |
7 double timeBase = null; | 7 double timeBase = null; |
8 | 8 |
| 9 Image image; |
| 10 |
9 void beginFrame(double timeStamp) { | 11 void beginFrame(double timeStamp) { |
10 if (timeBase == null) | 12 if (timeBase == null) timeBase = timeStamp; |
11 timeBase = timeStamp; | |
12 double delta = timeStamp - timeBase; | 13 double delta = timeStamp - timeBase; |
13 PictureRecorder canvas = new PictureRecorder(view.width, view.height); | 14 PictureRecorder canvas = new PictureRecorder(view.width, view.height); |
14 canvas.translate(view.width / 2.0, view.height / 2.0); | 15 canvas.translate(view.width / 2.0, view.height / 2.0); |
15 canvas.rotateDegrees(delta / 10); | 16 canvas.rotateDegrees(delta / 10); |
16 canvas.drawRect(new Rect.fromLTRB(-100.0, -100.0, 100.0, 100.0), | 17 canvas.scale(0.2, 0.2); |
17 new Paint()..setARGB(255, 0, 255, 0)); | 18 Paint paint = new Paint()..setARGB(255, 0, 255, 0); |
| 19 canvas.drawImage(image, -image.width / 2.0, -image.height / 2.0, paint); |
18 view.picture = canvas.endRecording(); | 20 view.picture = canvas.endRecording(); |
19 view.scheduleFrame(); | 21 view.scheduleFrame(); |
20 } | 22 } |
21 | 23 |
22 void main() { | 24 void main() { |
| 25 image = new Image(); |
| 26 image.src = "https://www.dartlang.org/logos/dart-logo.png"; |
23 view.setBeginFrameCallback(beginFrame); | 27 view.setBeginFrameCallback(beginFrame); |
24 view.scheduleFrame(); | 28 view.scheduleFrame(); |
25 } | 29 } |
OLD | NEW |