mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
15fb5c4ca6
More idiomatic use of constraints in performResize. Trivial fixes to comments. Make ProxyBox not use BoxParentData since it ignores the field. Make applyPaintTransform more helpful if you use a different ParentData subclass than RenderBox expects. Make debugAssertIsValid actually fulfill its contract in RenderObject as documented. Add a childBefore for symmetry (we already had childAfter). Fix the way we dump the child list when there's no children in a multichild render object. More asserts in the rendering test library.
107 lines
3.2 KiB
Dart
107 lines
3.2 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 'package:flutter/material.dart';
|
|
import 'package:flutter/rendering.dart';
|
|
import 'package:test/test.dart';
|
|
|
|
import 'rendering_tester.dart';
|
|
|
|
void main() {
|
|
test("should size to render view", () {
|
|
RenderBox root = new RenderDecoratedBox(
|
|
decoration: new BoxDecoration(
|
|
backgroundColor: const Color(0xFF00FF00),
|
|
gradient: new RadialGradient(
|
|
center: FractionalOffset.topLeft, radius: 1.8,
|
|
colors: <Color>[Colors.yellow[500], Colors.blue[500]],
|
|
),
|
|
boxShadow: kElevationToShadow[3],
|
|
),
|
|
);
|
|
layout(root);
|
|
expect(root.size.width, equals(800.0));
|
|
expect(root.size.height, equals(600.0));
|
|
});
|
|
|
|
test('Flex and padding', () {
|
|
RenderBox size = new RenderConstrainedBox(
|
|
additionalConstraints: new BoxConstraints().tighten(height: 100.0),
|
|
);
|
|
RenderBox inner = new RenderDecoratedBox(
|
|
decoration: new BoxDecoration(
|
|
backgroundColor: const Color(0xFF00FF00),
|
|
),
|
|
child: size,
|
|
);
|
|
RenderBox padding = new RenderPadding(
|
|
padding: new EdgeInsets.all(50.0),
|
|
child: inner,
|
|
);
|
|
RenderBox flex = new RenderFlex(
|
|
children: <RenderBox>[padding],
|
|
direction: Axis.vertical,
|
|
crossAxisAlignment: CrossAxisAlignment.stretch,
|
|
);
|
|
RenderBox outer = new RenderDecoratedBox(
|
|
decoration: new BoxDecoration(
|
|
backgroundColor: const Color(0xFF0000FF)
|
|
),
|
|
child: flex,
|
|
);
|
|
|
|
layout(outer);
|
|
|
|
expect(size.size.width, equals(700.0));
|
|
expect(size.size.height, equals(100.0));
|
|
expect(inner.size.width, equals(700.0));
|
|
expect(inner.size.height, equals(100.0));
|
|
expect(padding.size.width, equals(800.0));
|
|
expect(padding.size.height, equals(200.0));
|
|
expect(flex.size.width, equals(800.0));
|
|
expect(flex.size.height, equals(600.0));
|
|
expect(outer.size.width, equals(800.0));
|
|
expect(outer.size.height, equals(600.0));
|
|
});
|
|
|
|
test("should not have a 0 sized colored Box", () {
|
|
RenderBox coloredBox = new RenderDecoratedBox(
|
|
decoration: new BoxDecoration(),
|
|
);
|
|
RenderBox paddingBox = new RenderPadding(
|
|
padding: const EdgeInsets.all(10.0),
|
|
child: coloredBox,
|
|
);
|
|
RenderBox root = new RenderDecoratedBox(
|
|
decoration: new BoxDecoration(),
|
|
child: paddingBox,
|
|
);
|
|
layout(root);
|
|
expect(coloredBox.size.width, equals(780.0));
|
|
expect(coloredBox.size.height, equals(580.0));
|
|
});
|
|
|
|
test("reparenting should clear position", () {
|
|
RenderDecoratedBox coloredBox = new RenderDecoratedBox(
|
|
decoration: new BoxDecoration(),
|
|
);
|
|
|
|
RenderPadding paddedBox = new RenderPadding(
|
|
child: coloredBox,
|
|
padding: const EdgeInsets.all(10.0),
|
|
);
|
|
layout(paddedBox);
|
|
BoxParentData parentData = coloredBox.parentData;
|
|
expect(parentData.offset.dx, isNot(equals(0.0)));
|
|
paddedBox.child = null;
|
|
|
|
RenderConstrainedBox constraintedBox = new RenderConstrainedBox(
|
|
child: coloredBox,
|
|
additionalConstraints: const BoxConstraints(),
|
|
);
|
|
layout(constraintedBox);
|
|
expect(coloredBox.parentData?.runtimeType, ParentData);
|
|
});
|
|
}
|