| // Copyright 2014 The Flutter 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:math' as math; |
| |
| import 'package:flutter_test/flutter_test.dart'; |
| import 'package:flutter/rendering.dart'; |
| import 'package:flutter/widgets.dart'; |
| import 'package:vector_math/vector_math_64.dart'; |
| |
| void main() { |
| testWidgets('Transform origin', (WidgetTester tester) async { |
| bool didReceiveTap = false; |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: Stack( |
| children: <Widget>[ |
| Positioned( |
| top: 100.0, |
| left: 100.0, |
| child: Container( |
| width: 100.0, |
| height: 100.0, |
| color: const Color(0xFF0000FF), |
| ), |
| ), |
| Positioned( |
| top: 100.0, |
| left: 100.0, |
| child: Container( |
| width: 100.0, |
| height: 100.0, |
| child: Transform( |
| transform: Matrix4.diagonal3Values(0.5, 0.5, 1.0), |
| origin: const Offset(100.0, 50.0), |
| child: GestureDetector( |
| onTap: () { |
| didReceiveTap = true; |
| }, |
| child: Container( |
| color: const Color(0xFF00FFFF), |
| ), |
| ), |
| ), |
| ), |
| ), |
| ], |
| ), |
| ), |
| ); |
| |
| expect(didReceiveTap, isFalse); |
| await tester.tapAt(const Offset(110.0, 110.0)); |
| expect(didReceiveTap, isFalse); |
| await tester.tapAt(const Offset(190.0, 150.0)); |
| expect(didReceiveTap, isTrue); |
| }); |
| |
| testWidgets('Transform alignment', (WidgetTester tester) async { |
| bool didReceiveTap = false; |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: Stack( |
| children: <Widget>[ |
| Positioned( |
| top: 100.0, |
| left: 100.0, |
| child: Container( |
| width: 100.0, |
| height: 100.0, |
| color: const Color(0xFF0000FF), |
| ), |
| ), |
| Positioned( |
| top: 100.0, |
| left: 100.0, |
| child: Container( |
| width: 100.0, |
| height: 100.0, |
| child: Transform( |
| transform: Matrix4.diagonal3Values(0.5, 0.5, 1.0), |
| alignment: const Alignment(1.0, 0.0), |
| child: GestureDetector( |
| onTap: () { |
| didReceiveTap = true; |
| }, |
| child: Container( |
| color: const Color(0xFF00FFFF), |
| ), |
| ), |
| ), |
| ), |
| ), |
| ], |
| ), |
| ), |
| ); |
| |
| expect(didReceiveTap, isFalse); |
| await tester.tapAt(const Offset(110.0, 110.0)); |
| expect(didReceiveTap, isFalse); |
| await tester.tapAt(const Offset(190.0, 150.0)); |
| expect(didReceiveTap, isTrue); |
| }); |
| |
| testWidgets('Transform AlignmentDirectional alignment', (WidgetTester tester) async { |
| bool didReceiveTap = false; |
| |
| Widget buildFrame(TextDirection textDirection, AlignmentGeometry alignment) { |
| return Directionality( |
| textDirection: textDirection, |
| child: Stack( |
| children: <Widget>[ |
| Positioned( |
| top: 100.0, |
| left: 100.0, |
| child: Container( |
| width: 100.0, |
| height: 100.0, |
| color: const Color(0xFF0000FF), |
| ), |
| ), |
| Positioned( |
| top: 100.0, |
| left: 100.0, |
| child: Container( |
| width: 100.0, |
| height: 100.0, |
| child: Transform( |
| transform: Matrix4.diagonal3Values(0.5, 0.5, 1.0), |
| alignment: alignment, |
| child: GestureDetector( |
| onTap: () { |
| didReceiveTap = true; |
| }, |
| child: Container( |
| color: const Color(0xFF00FFFF), |
| ), |
| ), |
| ), |
| ), |
| ), |
| ], |
| ), |
| ); |
| } |
| |
| await tester.pumpWidget(buildFrame(TextDirection.ltr, AlignmentDirectional.centerEnd)); |
| didReceiveTap = false; |
| await tester.tapAt(const Offset(110.0, 110.0)); |
| expect(didReceiveTap, isFalse); |
| await tester.tapAt(const Offset(190.0, 150.0)); |
| expect(didReceiveTap, isTrue); |
| |
| await tester.pumpWidget(buildFrame(TextDirection.rtl, AlignmentDirectional.centerStart)); |
| didReceiveTap = false; |
| await tester.tapAt(const Offset(110.0, 110.0)); |
| expect(didReceiveTap, isFalse); |
| await tester.tapAt(const Offset(190.0, 150.0)); |
| expect(didReceiveTap, isTrue); |
| |
| await tester.pumpWidget(buildFrame(TextDirection.ltr, AlignmentDirectional.centerStart)); |
| didReceiveTap = false; |
| await tester.tapAt(const Offset(190.0, 150.0)); |
| expect(didReceiveTap, isFalse); |
| await tester.tapAt(const Offset(110.0, 150.0)); |
| expect(didReceiveTap, isTrue); |
| |
| await tester.pumpWidget(buildFrame(TextDirection.rtl, AlignmentDirectional.centerEnd)); |
| didReceiveTap = false; |
| await tester.tapAt(const Offset(190.0, 150.0)); |
| expect(didReceiveTap, isFalse); |
| await tester.tapAt(const Offset(110.0, 150.0)); |
| expect(didReceiveTap, isTrue); |
| }); |
| |
| testWidgets('Transform offset + alignment', (WidgetTester tester) async { |
| bool didReceiveTap = false; |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: Stack( |
| children: <Widget>[ |
| Positioned( |
| top: 100.0, |
| left: 100.0, |
| child: Container( |
| width: 100.0, |
| height: 100.0, |
| color: const Color(0xFF0000FF), |
| ), |
| ), |
| Positioned( |
| top: 100.0, |
| left: 100.0, |
| child: Container( |
| width: 100.0, |
| height: 100.0, |
| child: Transform( |
| transform: Matrix4.diagonal3Values(0.5, 0.5, 1.0), |
| origin: const Offset(100.0, 0.0), |
| alignment: const Alignment(-1.0, 0.0), |
| child: GestureDetector( |
| onTap: () { |
| didReceiveTap = true; |
| }, |
| child: Container( |
| color: const Color(0xFF00FFFF), |
| ), |
| ), |
| ), |
| ), |
| ), |
| ], |
| ), |
| ), |
| ); |
| |
| expect(didReceiveTap, isFalse); |
| await tester.tapAt(const Offset(110.0, 110.0)); |
| expect(didReceiveTap, isFalse); |
| await tester.tapAt(const Offset(190.0, 150.0)); |
| expect(didReceiveTap, isTrue); |
| }); |
| |
| testWidgets('Composited transform offset', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| Center( |
| child: SizedBox( |
| width: 400.0, |
| height: 300.0, |
| child: ClipRect( |
| child: Transform( |
| transform: Matrix4.diagonal3Values(0.5, 0.5, 1.0), |
| child: Opacity( |
| opacity: 0.9, |
| child: Container( |
| color: const Color(0xFF00FF00), |
| ), |
| ), |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| final List<Layer> layers = tester.layers |
| ..retainWhere((Layer layer) => layer is TransformLayer); |
| expect(layers.length, 2); |
| // The first transform is from the render view. |
| final TransformLayer layer = layers[1] as TransformLayer; |
| final Matrix4 transform = layer.transform; |
| expect(transform.getTranslation(), equals(Vector3(100.0, 75.0, 0.0))); |
| }); |
| |
| testWidgets('Transform.rotate', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| Transform.rotate( |
| angle: math.pi / 2.0, |
| child: Opacity(opacity: 0.5, child: Container()), |
| ), |
| ); |
| |
| final List<Layer> layers = tester.layers |
| ..retainWhere((Layer layer) => layer is TransformLayer); |
| expect(layers.length, 2); |
| // The first transform is from the render view. |
| final TransformLayer layer = layers[1] as TransformLayer; |
| final Matrix4 transform = layer.transform; |
| expect(transform.storage, <dynamic>[ |
| moreOrLessEquals(0.0), 1.0, 0.0, 0.0, |
| -1.0, moreOrLessEquals(0.0), 0.0, 0.0, |
| 0.0, 0.0, 1.0, 0.0, |
| 700.0, -100.0, 0.0, 1.0, |
| ]); |
| }); |
| |
| testWidgets('applyPaintTransform of Transform in Padding', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| Padding( |
| padding: const EdgeInsets.only( |
| left: 30.0, |
| top: 20.0, |
| right: 50.0, |
| bottom: 70.0, |
| ), |
| child: Transform( |
| transform: Matrix4.diagonal3Values(2.0, 2.0, 2.0), |
| child: const Placeholder(), |
| ), |
| ), |
| ); |
| expect(tester.getTopLeft(find.byType(Placeholder)), const Offset(30.0, 20.0)); |
| }); |
| |
| testWidgets('Transform.translate', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| Transform.translate( |
| offset: const Offset(100.0, 50.0), |
| child: Opacity(opacity: 0.5, child: Container()), |
| ), |
| ); |
| |
| // This should not cause a transform layer to be inserted. |
| final List<Layer> layers = tester.layers |
| ..retainWhere((Layer layer) => layer is TransformLayer); |
| expect(layers.length, 1); // only the render view |
| expect(tester.getTopLeft(find.byType(Container)), const Offset(100.0, 50.0)); |
| }); |
| |
| testWidgets('Transform.scale', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| Transform.scale( |
| scale: 2.0, |
| child: Opacity(opacity: 0.5, child: Container()), |
| ), |
| ); |
| |
| final List<Layer> layers = tester.layers |
| ..retainWhere((Layer layer) => layer is TransformLayer); |
| expect(layers.length, 2); |
| // The first transform is from the render view. |
| final TransformLayer layer = layers[1] as TransformLayer; |
| final Matrix4 transform = layer.transform; |
| expect(transform.storage, <dynamic>[ |
| // These are column-major, not row-major. |
| 2.0, 0.0, 0.0, 0.0, |
| 0.0, 2.0, 0.0, 0.0, |
| 0.0, 0.0, 1.0, 0.0, |
| -400.0, -300.0, 0.0, 1.0, // it's 1600x1200, centered in an 800x600 square |
| ]); |
| }); |
| |
| testWidgets('Translated child into translated box - hit test', (WidgetTester tester) async { |
| final GlobalKey key1 = GlobalKey(); |
| bool _pointerDown = false; |
| await tester.pumpWidget( |
| Transform.translate( |
| offset: const Offset(100.0, 50.0), |
| child: Transform.translate( |
| offset: const Offset(1000.0, 1000.0), |
| child: Listener( |
| onPointerDown: (PointerDownEvent event) { |
| _pointerDown = true; |
| }, |
| child: Container( |
| key: key1, |
| color: const Color(0xFF000000), |
| ), |
| ), |
| ), |
| ), |
| ); |
| expect(_pointerDown, isFalse); |
| await tester.tap(find.byKey(key1)); |
| expect(_pointerDown, isTrue); |
| }); |
| } |