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Print more layer debug info (#49679)

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liyuqian 2020-01-31 01:33:01 +08:00 committed by GitHub
parent 4673724e41
commit 2ccf3f877d
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3 changed files with 22 additions and 0 deletions
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6
packages/flutter/lib/src/rendering/layer.dart
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@ -460,6 +460,7 @@ abstract class Layer extends AbstractNode with DiagnosticableTreeMixin {
super.debugFillProperties(properties);
properties.add(DiagnosticsProperty<Object>('owner', owner, level: parent != null ? DiagnosticLevel.hidden : DiagnosticLevel.info, defaultValue: null));
properties.add(DiagnosticsProperty<dynamic>('creator', debugCreator, defaultValue: null, level: DiagnosticLevel.debug));
properties.add(DiagnosticsProperty<String>('engine layer', describeIdentity(_engineLayer)));
}
}
@ -535,6 +536,11 @@ class PictureLayer extends Layer {
void debugFillProperties(DiagnosticPropertiesBuilder properties) {
super.debugFillProperties(properties);
properties.add(DiagnosticsProperty<Rect>('paint bounds', canvasBounds));
properties.add(DiagnosticsProperty<String>('picture', describeIdentity(_picture)));
properties.add(DiagnosticsProperty<String>(
'raster cache hints',
'isComplex = $isComplexHint, willChange = $willChangeHint'),
);
}
@override

1
packages/flutter/test/foundation/service_extensions_test.dart
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@ -270,6 +270,7 @@ void main() {
r'TransformLayer#[0-9a-f]{5}\n'
r' owner: RenderView#[0-9a-f]{5}\n'
r' creator: RenderView\n'
r' engine layer: (TransformEngineLayer|PersistedTransform)#[0-9a-f]{5}\n'
r' offset: Offset\(0\.0, 0\.0\)\n'
r' transform:\n'
r' \[0] 3\.0,0\.0,0\.0,0\.0\n'

15
packages/flutter/test/rendering/layers_test.dart
View File

@ -256,6 +256,21 @@ void main() {
);
});
test('PictureLayer prints picture, engine layer, and raster cache hints in debug info', () {
final PictureRecorder recorder = PictureRecorder();
final Canvas canvas = Canvas(recorder);
canvas.drawPaint(Paint());
final Picture picture = recorder.endRecording();
final PictureLayer layer = PictureLayer(const Rect.fromLTRB(0, 0, 1, 1));
layer.picture = picture;
layer.isComplexHint = true;
layer.willChangeHint = false;
final List<String> info = _getDebugInfo(layer);
expect(info, contains('picture: ${describeIdentity(picture)}'));
expect(info, contains('engine layer: ${describeIdentity(null)}'));
expect(info, contains('raster cache hints: isComplex = true, willChange = false'));
});
test('mutating PictureLayer fields triggers needsAddToScene', () {
final PictureLayer pictureLayer = PictureLayer(Rect.zero);
checkNeedsAddToScene(pictureLayer, () {