mirror of
https://github.com/flutter/flutter.git
synced 2025-06-03 00:51:18 +00:00
5136d5209b
Move app/view.dart to rendering/sky_binding.dart since it's part of the RenderObject API, really (it knows about RenderView intimately). The tests pass. I didn't check every last example. R=abarth@chromium.org Review URL: https://codereview.chromium.org/1183913006.
51 lines
1.7 KiB
Dart
51 lines
1.7 KiB
Dart
// Copyright 2015 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
import 'dart:sky' as sky;
|
|
import 'dart:math' as math;
|
|
|
|
import 'package:sky/app/scheduler.dart';
|
|
import 'package:sky/rendering/box.dart';
|
|
import 'package:sky/rendering/flex.dart';
|
|
import 'package:sky/rendering/sky_binding.dart';
|
|
import 'package:vector_math/vector_math.dart';
|
|
|
|
import '../lib/solid_color_box.dart';
|
|
|
|
double timeBase;
|
|
RenderTransform transformBox;
|
|
|
|
void main() {
|
|
RenderFlex flexRoot = new RenderFlex(direction: FlexDirection.vertical);
|
|
|
|
void addFlexChildSolidColor(RenderFlex parent, sky.Color backgroundColor, { int flex: 0 }) {
|
|
RenderSolidColorBox child = new RenderSolidColorBox(backgroundColor);
|
|
parent.add(child);
|
|
child.parentData.flex = flex;
|
|
}
|
|
|
|
addFlexChildSolidColor(flexRoot, const sky.Color(0xFFFF00FF), flex: 1);
|
|
addFlexChildSolidColor(flexRoot, const sky.Color(0xFFFFFF00), flex: 2);
|
|
addFlexChildSolidColor(flexRoot, const sky.Color(0xFF00FFFF), flex: 1);
|
|
|
|
transformBox = new RenderTransform(child: flexRoot, transform: new Matrix4.identity());
|
|
|
|
RenderPadding root = new RenderPadding(padding: new EdgeDims.all(20.0), child: transformBox);
|
|
|
|
new SkyBinding(root: root);
|
|
|
|
addPersistentFrameCallback(rotate);
|
|
}
|
|
|
|
void rotate(double timeStamp) {
|
|
if (timeBase == null)
|
|
timeBase = timeStamp;
|
|
double delta = (timeStamp - timeBase) / 1000; // radians
|
|
|
|
transformBox.setIdentity();
|
|
transformBox.translate(transformBox.size.width / 2.0, transformBox.size.height / 2.0);
|
|
transformBox.rotateZ(delta);
|
|
transformBox.translate(-transformBox.size.width / 2.0, -transformBox.size.height / 2.0);
|
|
}
|