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Side by Side Diff: sky/sdk/lib/example/raw/spinning_square.dart

Issue 1218593002: Move sky/examples to sky/sdk/lib/example, and code changes to support that change. Fixes T277. (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 5 months ago
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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 import 'dart:math' as math; 6 import 'dart:math' as math;
7 7
8 double timeBase = null; 8 double timeBase = null;
9 9
10 void beginFrame(double timeStamp) { 10 void beginFrame(double timeStamp) {
11 tracing.begin('beginFrame'); 11 tracing.begin('beginFrame');
12 if (timeBase == null) 12 if (timeBase == null)
13 timeBase = timeStamp; 13 timeBase = timeStamp;
14 double delta = timeStamp - timeBase; 14 double delta = timeStamp - timeBase;
15 PictureRecorder recorder = new PictureRecorder(); 15 PictureRecorder recorder = new PictureRecorder();
16 Canvas canvas = new Canvas(recorder, view.width, view.height); 16 Canvas canvas = new Canvas(recorder, view.width, view.height);
17 canvas.translate(view.width / 2.0, view.height / 2.0); 17 canvas.translate(view.width / 2.0, view.height / 2.0);
18 canvas.rotate(math.PI * delta / 1800); 18 canvas.rotate(math.PI * delta / 1800);
19 canvas.drawRect(new Rect.fromLTRB(-100.0, -100.0, 100.0, 100.0), 19 canvas.drawRect(new Rect.fromLTRB(-100.0, -100.0, 100.0, 100.0),
20 new Paint()..color = const Color.fromARGB(255, 0, 255, 0)); 20 new Paint()..color = const Color.fromARGB(255, 0, 255, 0));
21 view.picture = recorder.endRecording(); 21 view.picture = recorder.endRecording();
22 view.scheduleFrame(); 22 view.scheduleFrame();
23 tracing.end('beginFrame'); 23 tracing.end('beginFrame');
24 } 24 }
25 25
26 void main() { 26 void main() {
27 view.setBeginFrameCallback(beginFrame); 27 view.setBeginFrameCallback(beginFrame);
28 view.scheduleFrame(); 28 view.scheduleFrame();
29 } 29 }
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