// 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 'package:flutter/rendering.dart'; import 'package:flutter/widgets.dart'; import 'package:flutter_test/flutter_test.dart'; void main() { group('$AnnotatedRegion find', () { test('finds the first value in a OffsetLayer when sized', () { final ContainerLayer containerLayer = ContainerLayer(); final List<OffsetLayer> layers = <OffsetLayer>[ OffsetLayer(offset: Offset.zero), OffsetLayer(offset: const Offset(0.0, 100.0)), OffsetLayer(offset: const Offset(0.0, 200.0)), ]; int i = 0; for (final OffsetLayer layer in layers) { layer.append(AnnotatedRegionLayer<int>(i, size: const Size(200.0, 100.0))); containerLayer.append(layer); i += 1; } expect(containerLayer.find<int>(const Offset(0.0, 1.0)), 0); expect(containerLayer.find<int>(const Offset(0.0, 101.0)), 1); expect(containerLayer.find<int>(const Offset(0.0, 201.0)), 2); }); test('finds a value within the clip in a ClipRectLayer', () { final ContainerLayer containerLayer = ContainerLayer(); final List<ClipRectLayer> layers = <ClipRectLayer>[ ClipRectLayer(clipRect: const Rect.fromLTRB(0.0, 0.0, 100.0, 100.0)), ClipRectLayer(clipRect: const Rect.fromLTRB(0.0, 100.0, 100.0, 200.0)), ClipRectLayer(clipRect: const Rect.fromLTRB(0.0, 200.0, 100.0, 300.0)), ]; int i = 0; for (final ClipRectLayer layer in layers) { layer.append(AnnotatedRegionLayer<int>(i)); containerLayer.append(layer); i += 1; } expect(containerLayer.find<int>(const Offset(0.0, 1.0)), 0); expect(containerLayer.find<int>(const Offset(0.0, 101.0)), 1); expect(containerLayer.find<int>(const Offset(0.0, 201.0)), 2); }); test('finds a value within the clip in a ClipRRectLayer', () { final ContainerLayer containerLayer = ContainerLayer(); final List<ClipRRectLayer> layers = <ClipRRectLayer>[ ClipRRectLayer(clipRRect: RRect.fromLTRBR(0.0, 0.0, 100.0, 100.0, const Radius.circular(4.0))), ClipRRectLayer(clipRRect: RRect.fromLTRBR(0.0, 100.0, 100.0, 200.0, const Radius.circular(4.0))), ClipRRectLayer(clipRRect: RRect.fromLTRBR(0.0, 200.0, 100.0, 300.0, const Radius.circular(4.0))), ]; int i = 0; for (final ClipRRectLayer layer in layers) { layer.append(AnnotatedRegionLayer<int>(i)); containerLayer.append(layer); i += 1; } expect(containerLayer.find<int>(const Offset(5.0, 5.0)), 0); expect(containerLayer.find<int>(const Offset(5.0, 105.0)), 1); expect(containerLayer.find<int>(const Offset(5.0, 205.0)), 2); }); test('finds a value under a TransformLayer', () { final Matrix4 transform = Matrix4( 2.625, 0.0, 0.0, 0.0, 0.0, 2.625, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, ); final TransformLayer transformLayer = TransformLayer(transform: transform); final List<OffsetLayer> layers = <OffsetLayer>[ OffsetLayer(), OffsetLayer(offset: const Offset(0.0, 100.0)), OffsetLayer(offset: const Offset(0.0, 200.0)), ]; int i = 0; for (final OffsetLayer layer in layers) { final AnnotatedRegionLayer<int> annotatedRegionLayer = AnnotatedRegionLayer<int>(i, size: const Size(100.0, 100.0)); layer.append(annotatedRegionLayer); transformLayer.append(layer); i += 1; } expect(transformLayer.find<int>(const Offset(0.0, 100.0)), 0); expect(transformLayer.find<int>(const Offset(0.0, 200.0)), 0); expect(transformLayer.find<int>(const Offset(0.0, 270.0)), 1); expect(transformLayer.find<int>(const Offset(0.0, 400.0)), 1); expect(transformLayer.find<int>(const Offset(0.0, 530.0)), 2); }); test('looks for child AnnotatedRegions before parents', () { final AnnotatedRegionLayer<int> parent = AnnotatedRegionLayer<int>(1); final AnnotatedRegionLayer<int> child = AnnotatedRegionLayer<int>(2); final ContainerLayer layer = ContainerLayer(); parent.append(child); layer.append(parent); expect(parent.find<int>(Offset.zero), 2); }); test('looks for correct type', () { final AnnotatedRegionLayer<int> child1 = AnnotatedRegionLayer<int>(1); final AnnotatedRegionLayer<String> child2 = AnnotatedRegionLayer<String>('hello'); final ContainerLayer layer = ContainerLayer(); layer.append(child2); layer.append(child1); expect(layer.find<String>(Offset.zero), 'hello'); }); test('does not clip Layer.find on an AnnotatedRegion with an unrelated type', () { final AnnotatedRegionLayer<int> child = AnnotatedRegionLayer<int>(1); final AnnotatedRegionLayer<String> parent = AnnotatedRegionLayer<String>('hello', size: const Size(10.0, 10.0)); final ContainerLayer layer = ContainerLayer(); parent.append(child); layer.append(parent); expect(layer.find<int>(const Offset(100.0, 100.0)), 1); }); test('handles non-invertible transforms', () { final AnnotatedRegionLayer<int> child = AnnotatedRegionLayer<int>(1); final TransformLayer parent = TransformLayer(transform: Matrix4.diagonal3Values(0.0, 1.0, 1.0)); parent.append(child); expect(parent.find<int>(Offset.zero), null); parent.transform = Matrix4.diagonal3Values(1.0, 1.0, 1.0); expect(parent.find<int>(Offset.zero), 1); }); }); group('$AnnotatedRegion findAllAnnotations', () { test('finds the first value in a OffsetLayer when sized', () { final ContainerLayer containerLayer = ContainerLayer(); final List<OffsetLayer> layers = <OffsetLayer>[ OffsetLayer(offset: Offset.zero), OffsetLayer(offset: const Offset(0.0, 100.0)), OffsetLayer(offset: const Offset(0.0, 200.0)), ]; int i = 0; for (final OffsetLayer layer in layers) { layer.append(AnnotatedRegionLayer<int>(i, size: const Size(200.0, 100.0))); containerLayer.append(layer); i += 1; } expect(containerLayer.findAllAnnotations<int>(const Offset(0.0, 1.0)).annotations.toList(), equals(<int>[0])); expect(containerLayer.findAllAnnotations<int>(const Offset(0.0, 101.0)).annotations.toList(), equals(<int>[1])); expect(containerLayer.findAllAnnotations<int>(const Offset(0.0, 201.0)).annotations.toList(), equals(<int>[2])); }); test('finds a value within the clip in a ClipRectLayer', () { final ContainerLayer containerLayer = ContainerLayer(); final List<ClipRectLayer> layers = <ClipRectLayer>[ ClipRectLayer(clipRect: const Rect.fromLTRB(0.0, 0.0, 100.0, 100.0)), ClipRectLayer(clipRect: const Rect.fromLTRB(0.0, 100.0, 100.0, 200.0)), ClipRectLayer(clipRect: const Rect.fromLTRB(0.0, 200.0, 100.0, 300.0)), ]; int i = 0; for (final ClipRectLayer layer in layers) { layer.append(AnnotatedRegionLayer<int>(i)); containerLayer.append(layer); i += 1; } expect(containerLayer.findAllAnnotations<int>(const Offset(0.0, 1.0)).annotations.toList(), equals(<int>[0])); expect(containerLayer.findAllAnnotations<int>(const Offset(0.0, 101.0)).annotations.toList(), equals(<int>[1])); expect(containerLayer.findAllAnnotations<int>(const Offset(0.0, 201.0)).annotations.toList(), equals(<int>[2])); }); test('finds a value within the clip in a ClipRRectLayer', () { final ContainerLayer containerLayer = ContainerLayer(); final List<ClipRRectLayer> layers = <ClipRRectLayer>[ ClipRRectLayer(clipRRect: RRect.fromLTRBR(0.0, 0.0, 100.0, 100.0, const Radius.circular(4.0))), ClipRRectLayer(clipRRect: RRect.fromLTRBR(0.0, 100.0, 100.0, 200.0, const Radius.circular(4.0))), ClipRRectLayer(clipRRect: RRect.fromLTRBR(0.0, 200.0, 100.0, 300.0, const Radius.circular(4.0))), ]; int i = 0; for (final ClipRRectLayer layer in layers) { layer.append(AnnotatedRegionLayer<int>(i)); containerLayer.append(layer); i += 1; } expect(containerLayer.findAllAnnotations<int>(const Offset(5.0, 5.0)).annotations.toList(), equals(<int>[0])); expect(containerLayer.findAllAnnotations<int>(const Offset(5.0, 105.0)).annotations.toList(), equals(<int>[1])); expect(containerLayer.findAllAnnotations<int>(const Offset(5.0, 205.0)).annotations.toList(), equals(<int>[2])); }); test('finds a value under a TransformLayer', () { final Matrix4 transform = Matrix4( 2.625, 0.0, 0.0, 0.0, 0.0, 2.625, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, ); final TransformLayer transformLayer = TransformLayer(transform: transform); final List<OffsetLayer> layers = <OffsetLayer>[ OffsetLayer(), OffsetLayer(offset: const Offset(0.0, 100.0)), OffsetLayer(offset: const Offset(0.0, 200.0)), ]; int i = 0; for (final OffsetLayer layer in layers) { final AnnotatedRegionLayer<int> annotatedRegionLayer = AnnotatedRegionLayer<int>(i, size: const Size(100.0, 100.0)); layer.append(annotatedRegionLayer); transformLayer.append(layer); i += 1; } expect(transformLayer.findAllAnnotations<int>(const Offset(0.0, 100.0)).annotations.toList(), equals(<int>[0])); expect(transformLayer.findAllAnnotations<int>(const Offset(0.0, 200.0)).annotations.toList(), equals(<int>[0])); expect(transformLayer.findAllAnnotations<int>(const Offset(0.0, 270.0)).annotations.toList(), equals(<int>[1])); expect(transformLayer.findAllAnnotations<int>(const Offset(0.0, 400.0)).annotations.toList(), equals(<int>[1])); expect(transformLayer.findAllAnnotations<int>(const Offset(0.0, 530.0)).annotations.toList(), equals(<int>[2])); }); test('finds multiple nested, overlapping regions', () { final ContainerLayer parent = ContainerLayer(); int index = 0; final List<AnnotatedRegionLayer<int>> layers = <AnnotatedRegionLayer<int>>[ AnnotatedRegionLayer<int>(index++, size: const Size(100.0, 100.0)), AnnotatedRegionLayer<int>(index++, size: const Size(100.0, 100.0)), ]; for (final ContainerLayer layer in layers) { final AnnotatedRegionLayer<int> annotatedRegionLayer = AnnotatedRegionLayer<int>(index++, size: const Size(100.0, 100.0)); layer.append(annotatedRegionLayer); parent.append(layer); } expect(parent.findAllAnnotations<int>(Offset.zero).annotations.toList(), equals(<int>[3, 1, 2, 0,])); }); test('looks for child AnnotatedRegions before parents', () { final AnnotatedRegionLayer<int> parent = AnnotatedRegionLayer<int>(1); final AnnotatedRegionLayer<int> child1 = AnnotatedRegionLayer<int>(2); final AnnotatedRegionLayer<int> child2 = AnnotatedRegionLayer<int>(3); final AnnotatedRegionLayer<int> child3 = AnnotatedRegionLayer<int>(4); final ContainerLayer layer = ContainerLayer(); parent.append(child1); parent.append(child2); parent.append(child3); layer.append(parent); expect(parent.findAllAnnotations<int>(Offset.zero).annotations.toList(), equals(<int>[4, 3, 2, 1])); }); test('looks for correct type', () { final AnnotatedRegionLayer<int> child1 = AnnotatedRegionLayer<int>(1); final AnnotatedRegionLayer<String> child2 = AnnotatedRegionLayer<String>('hello'); final ContainerLayer layer = ContainerLayer(); layer.append(child2); layer.append(child1); expect(layer.findAllAnnotations<String>(Offset.zero).annotations.toList(), equals(<String>['hello'])); }); test('does not clip Layer.find on an AnnotatedRegion with an unrelated type', () { final AnnotatedRegionLayer<int> child = AnnotatedRegionLayer<int>(1); final AnnotatedRegionLayer<String> parent = AnnotatedRegionLayer<String>('hello', size: const Size(10.0, 10.0)); final ContainerLayer layer = ContainerLayer(); parent.append(child); layer.append(parent); expect(layer.findAllAnnotations<int>(const Offset(100.0, 100.0)).annotations.toList(), equals(<int>[1])); }); test('handles non-invertible transforms', () { final AnnotatedRegionLayer<int> child = AnnotatedRegionLayer<int>(1); final TransformLayer parent = TransformLayer(transform: Matrix4.diagonal3Values(0.0, 1.0, 1.0)); parent.append(child); expect(parent.findAllAnnotations<int>(Offset.zero).annotations.toList(), equals(<int>[])); parent.transform = Matrix4.diagonal3Values(1.0, 1.0, 1.0); expect(parent.findAllAnnotations<int>(Offset.zero).annotations.toList(), equals(<int>[1])); }); }); }