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50bfdedbf4
Sadly, box.dart has grown much longer than 1000 lines. This patch splits it up into several files based on the class hierarchy. Fortunately, many of these classes are loosely coupled to each other.
51 lines
1.7 KiB
Dart
51 lines
1.7 KiB
Dart
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:sky' as sky;
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import 'package:sky/base/scheduler.dart';
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import 'package:sky/rendering/flex.dart';
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import 'package:sky/rendering/proxy_box.dart';
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import 'package:sky/rendering/shifted_box.dart';
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import 'package:sky/rendering/sky_binding.dart';
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import 'package:vector_math/vector_math.dart';
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import 'solid_color_box.dart';
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double timeBase;
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RenderTransform transformBox;
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void main() {
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RenderFlex flexRoot = new RenderFlex(direction: FlexDirection.vertical);
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void addFlexChildSolidColor(RenderFlex parent, sky.Color backgroundColor, { int flex: 0 }) {
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RenderSolidColorBox child = new RenderSolidColorBox(backgroundColor);
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parent.add(child);
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child.parentData.flex = flex;
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}
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addFlexChildSolidColor(flexRoot, const sky.Color(0xFFFF00FF), flex: 1);
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addFlexChildSolidColor(flexRoot, const sky.Color(0xFFFFFF00), flex: 2);
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addFlexChildSolidColor(flexRoot, const sky.Color(0xFF00FFFF), flex: 1);
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transformBox = new RenderTransform(child: flexRoot, transform: new Matrix4.identity());
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RenderPadding root = new RenderPadding(padding: new EdgeDims.all(20.0), child: transformBox);
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new SkyBinding(root: root);
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addPersistentFrameCallback(rotate);
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}
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void rotate(double timeStamp) {
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if (timeBase == null)
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timeBase = timeStamp;
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double delta = (timeStamp - timeBase) / 1000; // radians
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transformBox.setIdentity();
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transformBox.translate(transformBox.size.width / 2.0, transformBox.size.height / 2.0);
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transformBox.rotateZ(delta);
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transformBox.translate(-transformBox.size.width / 2.0, -transformBox.size.height / 2.0);
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}
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