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e82b18d47b
This implements a new RenderViewport2 class to replace the existing RenderViewport class.
211 lines
10 KiB
Dart
211 lines
10 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 'package:flutter/rendering.dart';
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import 'package:test/test.dart';
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import 'rendering_tester.dart';
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void main() {
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test('RenderViewport2 basic test - down', () {
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RenderBox a, b, c, d, e;
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RenderViewport2 root = new RenderViewport2(
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children: <RenderSliver>[
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new RenderSliverToBoxAdapter(child: a = new RenderSizedBox(const Size(100.0, 400.0))),
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new RenderSliverToBoxAdapter(child: b = new RenderSizedBox(const Size(100.0, 400.0))),
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new RenderSliverToBoxAdapter(child: c = new RenderSizedBox(const Size(100.0, 400.0))),
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new RenderSliverToBoxAdapter(child: d = new RenderSizedBox(const Size(100.0, 400.0))),
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new RenderSliverToBoxAdapter(child: e = new RenderSizedBox(const Size(100.0, 400.0))),
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],
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);
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layout(root);
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expect(root.size.width, equals(800.0));
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expect(root.size.height, equals(600.0));
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expect(a.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 0.0));
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expect(b.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 400.0));
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expect(c.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 600.0));
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expect(d.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 600.0));
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expect(e.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 600.0));
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root.offset = new ViewportOffset.fixed(200.0);
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pumpFrame();
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expect(a.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, -200.0));
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expect(b.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 200.0));
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expect(c.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 600.0));
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expect(d.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 600.0));
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expect(e.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 600.0));
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root.offset = new ViewportOffset.fixed(600.0);
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pumpFrame();
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expect(a.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, -600.0));
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expect(b.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, -200.0));
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expect(c.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 200.0));
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expect(d.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 600.0));
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expect(e.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 600.0));
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root.offset = new ViewportOffset.fixed(900.0);
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pumpFrame();
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expect(a.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, -900.0));
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expect(b.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, -500.0));
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expect(c.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, -100.0));
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expect(d.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 300.0));
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expect(e.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 600.0));
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});
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test('RenderViewport2 basic test - up', () {
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RenderBox a, b, c, d, e;
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RenderViewport2 root = new RenderViewport2(
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axisDirection: AxisDirection.up,
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children: <RenderSliver>[
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new RenderSliverToBoxAdapter(child: a = new RenderSizedBox(const Size(100.0, 400.0))),
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new RenderSliverToBoxAdapter(child: b = new RenderSizedBox(const Size(100.0, 400.0))),
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new RenderSliverToBoxAdapter(child: c = new RenderSizedBox(const Size(100.0, 400.0))),
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new RenderSliverToBoxAdapter(child: d = new RenderSizedBox(const Size(100.0, 400.0))),
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new RenderSliverToBoxAdapter(child: e = new RenderSizedBox(const Size(100.0, 400.0))),
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],
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);
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layout(root);
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expect(root.size.width, equals(800.0));
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expect(root.size.height, equals(600.0));
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expect(a.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 200.0));
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expect(b.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, -200.0));
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expect(c.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, -400.0));
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expect(d.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, -400.0));
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expect(e.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, -400.0));
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root.offset = new ViewportOffset.fixed(200.0);
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pumpFrame();
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expect(a.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 400.0));
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expect(b.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 0.0));
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expect(c.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, -400.0));
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expect(d.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, -400.0));
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expect(e.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, -400.0));
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root.offset = new ViewportOffset.fixed(600.0);
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pumpFrame();
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expect(a.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 800.0));
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expect(b.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 400.0));
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expect(c.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 0.0));
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expect(d.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, -400.0));
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expect(e.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, -400.0));
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root.offset = new ViewportOffset.fixed(900.0);
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pumpFrame();
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expect(a.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 1100.0));
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expect(b.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 700.0));
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expect(c.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 300.0));
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expect(d.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, -100.0));
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expect(e.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, -400.0));
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});
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test('RenderViewport2 basic test - right', () {
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RenderBox a, b, c, d, e;
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RenderViewport2 root = new RenderViewport2(
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axisDirection: AxisDirection.right,
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children: <RenderSliver>[
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new RenderSliverToBoxAdapter(child: a = new RenderSizedBox(const Size(400.0, 100.0))),
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new RenderSliverToBoxAdapter(child: b = new RenderSizedBox(const Size(400.0, 100.0))),
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new RenderSliverToBoxAdapter(child: c = new RenderSizedBox(const Size(400.0, 100.0))),
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new RenderSliverToBoxAdapter(child: d = new RenderSizedBox(const Size(400.0, 100.0))),
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new RenderSliverToBoxAdapter(child: e = new RenderSizedBox(const Size(400.0, 100.0))),
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],
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);
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layout(root);
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expect(root.size.width, equals(800.0));
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expect(root.size.height, equals(600.0));
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expect(a.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 0.0));
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expect(b.localToGlobal(const Point(0.0, 0.0)), const Point(400.0, 0.0));
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expect(c.localToGlobal(const Point(0.0, 0.0)), const Point(800.0, 0.0));
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expect(d.localToGlobal(const Point(0.0, 0.0)), const Point(800.0, 0.0));
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expect(e.localToGlobal(const Point(0.0, 0.0)), const Point(800.0, 0.0));
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root.offset = new ViewportOffset.fixed(200.0);
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pumpFrame();
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expect(a.localToGlobal(const Point(0.0, 0.0)), const Point(-200.0, 0.0));
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expect(b.localToGlobal(const Point(0.0, 0.0)), const Point(200.0, 0.0));
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expect(c.localToGlobal(const Point(0.0, 0.0)), const Point(600.0, 0.0));
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expect(d.localToGlobal(const Point(0.0, 0.0)), const Point(800.0, 0.0));
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expect(e.localToGlobal(const Point(0.0, 0.0)), const Point(800.0, 0.0));
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root.offset = new ViewportOffset.fixed(600.0);
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pumpFrame();
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expect(a.localToGlobal(const Point(0.0, 0.0)), const Point(-600.0, 0.0));
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expect(b.localToGlobal(const Point(0.0, 0.0)), const Point(-200.0, 0.0));
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expect(c.localToGlobal(const Point(0.0, 0.0)), const Point(200.0, 0.0));
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expect(d.localToGlobal(const Point(0.0, 0.0)), const Point(600.0, 0.0));
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expect(e.localToGlobal(const Point(0.0, 0.0)), const Point(800.0, 0.0));
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root.offset = new ViewportOffset.fixed(900.0);
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pumpFrame();
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expect(a.localToGlobal(const Point(0.0, 0.0)), const Point(-900.0, 0.0));
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expect(b.localToGlobal(const Point(0.0, 0.0)), const Point(-500.0, 0.0));
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expect(c.localToGlobal(const Point(0.0, 0.0)), const Point(-100.0, 0.0));
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expect(d.localToGlobal(const Point(0.0, 0.0)), const Point(300.0, 0.0));
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expect(e.localToGlobal(const Point(0.0, 0.0)), const Point(700.0, 0.0));
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});
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test('RenderViewport2 basic test - left', () {
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RenderBox a, b, c, d, e;
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RenderViewport2 root = new RenderViewport2(
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axisDirection: AxisDirection.left,
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children: <RenderSliver>[
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new RenderSliverToBoxAdapter(child: a = new RenderSizedBox(const Size(400.0, 100.0))),
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new RenderSliverToBoxAdapter(child: b = new RenderSizedBox(const Size(400.0, 100.0))),
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new RenderSliverToBoxAdapter(child: c = new RenderSizedBox(const Size(400.0, 100.0))),
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new RenderSliverToBoxAdapter(child: d = new RenderSizedBox(const Size(400.0, 100.0))),
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new RenderSliverToBoxAdapter(child: e = new RenderSizedBox(const Size(400.0, 100.0))),
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],
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);
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layout(root);
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expect(root.size.width, equals(800.0));
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expect(root.size.height, equals(600.0));
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expect(a.localToGlobal(const Point(0.0, 0.0)), const Point(400.0, 0.0));
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expect(b.localToGlobal(const Point(0.0, 0.0)), const Point(0.0, 0.0));
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expect(c.localToGlobal(const Point(0.0, 0.0)), const Point(-400.0, 0.0));
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expect(d.localToGlobal(const Point(0.0, 0.0)), const Point(-400.0, 0.0));
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expect(e.localToGlobal(const Point(0.0, 0.0)), const Point(-400.0, 0.0));
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root.offset = new ViewportOffset.fixed(200.0);
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pumpFrame();
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expect(a.localToGlobal(const Point(0.0, 0.0)), const Point(600.0, 0.0));
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expect(b.localToGlobal(const Point(0.0, 0.0)), const Point(200.0, 0.0));
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expect(c.localToGlobal(const Point(0.0, 0.0)), const Point(-200.0, 0.0));
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expect(d.localToGlobal(const Point(0.0, 0.0)), const Point(-400.0, 0.0));
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expect(e.localToGlobal(const Point(0.0, 0.0)), const Point(-400.0, 0.0));
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root.offset = new ViewportOffset.fixed(600.0);
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pumpFrame();
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expect(a.localToGlobal(const Point(0.0, 0.0)), const Point(1000.0, 0.0));
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expect(b.localToGlobal(const Point(0.0, 0.0)), const Point(600.0, 0.0));
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expect(c.localToGlobal(const Point(0.0, 0.0)), const Point(200.0, 0.0));
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expect(d.localToGlobal(const Point(0.0, 0.0)), const Point(-200.0, 0.0));
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expect(e.localToGlobal(const Point(0.0, 0.0)), const Point(-400.0, 0.0));
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root.offset = new ViewportOffset.fixed(900.0);
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pumpFrame();
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expect(a.localToGlobal(const Point(0.0, 0.0)), const Point(1300.0, 0.0));
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expect(b.localToGlobal(const Point(0.0, 0.0)), const Point(900.0, 0.0));
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expect(c.localToGlobal(const Point(0.0, 0.0)), const Point(500.0, 0.0));
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expect(d.localToGlobal(const Point(0.0, 0.0)), const Point(100.0, 0.0));
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expect(e.localToGlobal(const Point(0.0, 0.0)), const Point(-300.0, 0.0));
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});
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// TODO(ianh): test positioning when the children are too big to fit in the main axis
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// TODO(ianh): test shrinkWrap
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// TODO(ianh): test anchor
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// TODO(ianh): test offset
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// TODO(ianh): test center
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// TODO(ianh): test hit testing
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// TODO(ianh): test semantics
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}
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