sky/sdk/lib/example/rendering/spinning_flex.dart - Issue 1209413004: Instead of applying a transform for every RenderObject, pass down an Offset for where to paint.

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Side by Side Diff: sky/sdk/lib/example/rendering/spinning_flex.dart

Issue 1209413004: Instead of applying a transform for every RenderObject, pass down an Offset for where to paint. (Closed) Base URL: https://github.com/domokit/mojo.git@master

Patch Set: Created 5 years, 6 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' as sky;	5 import 'dart:sky' as sky;

6 import 'dart:math' as math;

7	6

8 import 'package:sky/base/scheduler.dart';	7 import 'package:sky/base/scheduler.dart';

9 import 'package:sky/rendering/box.dart';	8 import 'package:sky/rendering/box.dart';

10 import 'package:sky/rendering/flex.dart';	9 import 'package:sky/rendering/flex.dart';

11 import 'package:sky/rendering/sky_binding.dart';	10 import 'package:sky/rendering/sky_binding.dart';

12 import 'package:vector_math/vector_math.dart';	11 import 'package:vector_math/vector_math.dart';

13	12

14 import '../lib/solid_color_box.dart';	13 import '../lib/solid_color_box.dart';

15	14

16 double timeBase;	15 double timeBase;

(...skipping 24 matching lines...) Expand all Loading...
41 void rotate(double timeStamp) {	40 void rotate(double timeStamp) {

42 if (timeBase == null)	41 if (timeBase == null)

43 timeBase = timeStamp;	42 timeBase = timeStamp;

44 double delta = (timeStamp - timeBase) / 1000; // radians	43 double delta = (timeStamp - timeBase) / 1000; // radians

45	44

46 transformBox.setIdentity();	45 transformBox.setIdentity();

47 transformBox.translate(transformBox.size.width / 2.0, transformBox.size.height / 2.0);	46 transformBox.translate(transformBox.size.width / 2.0, transformBox.size.height / 2.0);

48 transformBox.rotateZ(delta);	47 transformBox.rotateZ(delta);

49 transformBox.translate(-transformBox.size.width / 2.0, -transformBox.size.heig ht / 2.0);	48 transformBox.translate(-transformBox.size.width / 2.0, -transformBox.size.heig ht / 2.0);

50 }	49 }

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