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1434 行
47 KiB
1434 行
47 KiB
using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using Unity.UIWidgets.foundation;
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using Unity.UIWidgets.gestures;
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using Unity.UIWidgets.painting;
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using Unity.UIWidgets.ui;
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using UnityEngine;
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using Color = Unity.UIWidgets.ui.Color;
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using Rect = Unity.UIWidgets.ui.Rect;
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namespace Unity.UIWidgets.rendering {
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public abstract class Layer : AbstractNodeMixinDiagnosticableTree {
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public new ContainerLayer parent {
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get { return (ContainerLayer) base.parent; }
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}
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bool _needsAddToScene = true;
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protected void markNeedsAddToScene() {
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this._needsAddToScene = true;
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}
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protected virtual bool alwaysNeedsAddToScene {
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get { return false; }
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}
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internal bool _subtreeNeedsAddToScene;
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flow.Layer _engineLayer;
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internal virtual void updateSubtreeNeedsAddToScene() {
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this._subtreeNeedsAddToScene = this._needsAddToScene || this.alwaysNeedsAddToScene;
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}
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public Layer nextSibling {
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get { return this._nextSibling; }
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}
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internal Layer _nextSibling;
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public Layer previousSibling {
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get { return this._previousSibling; }
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}
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internal Layer _previousSibling;
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protected override void dropChild(AbstractNodeMixinDiagnosticableTree child) {
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this.markNeedsAddToScene();
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base.dropChild(child);
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}
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protected override void adoptChild(AbstractNodeMixinDiagnosticableTree child) {
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this.markNeedsAddToScene();
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base.adoptChild(child);
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}
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public virtual void remove() {
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if (this.parent != null) {
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this.parent._removeChild(this);
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}
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}
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public void replaceWith(Layer newLayer) {
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D.assert(this.parent != null);
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D.assert(this.attached == this.parent.attached);
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D.assert(newLayer.parent == null);
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D.assert(newLayer._nextSibling == null);
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D.assert(newLayer._previousSibling == null);
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D.assert(!newLayer.attached);
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newLayer._nextSibling = this.nextSibling;
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if (this._nextSibling != null) {
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this._nextSibling._previousSibling = newLayer;
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}
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newLayer._previousSibling = this.previousSibling;
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if (this._previousSibling != null) {
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this._previousSibling._nextSibling = newLayer;
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}
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D.assert(() => {
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Layer node = this;
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while (node.parent != null) {
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node = node.parent;
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}
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D.assert(node != newLayer);
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return true;
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});
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this.parent.adoptChild(newLayer);
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D.assert(newLayer.attached == this.parent.attached);
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if (this.parent.firstChild == this) {
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this.parent._firstChild = newLayer;
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}
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if (this.parent.lastChild == this) {
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this.parent._lastChild = newLayer;
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}
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this._nextSibling = null;
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this._previousSibling = null;
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this.parent.dropChild(this);
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D.assert(!this.attached);
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}
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internal abstract S find<S>(Offset regionOffset) where S : class;
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internal abstract flow.Layer addToScene(SceneBuilder builder, Offset layerOffset = null);
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internal void _addToSceneWithRetainedRendering(SceneBuilder builder) {
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if (!this._subtreeNeedsAddToScene && this._engineLayer != null) {
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builder.addRetained(this._engineLayer);
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return;
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}
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this._engineLayer = this.addToScene(builder);
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this._needsAddToScene = false;
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}
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public object debugCreator;
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public override string toStringShort() {
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return base.toStringShort() + (this.owner == null ? " DETACHED" : "");
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}
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public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
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base.debugFillProperties(properties);
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properties.add(new DiagnosticsProperty<object>("owner", this.owner,
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level: this.parent != null ? DiagnosticLevel.hidden : DiagnosticLevel.info,
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defaultValue: Diagnostics.kNullDefaultValue));
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properties.add(new DiagnosticsProperty<object>("creator", this.debugCreator,
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defaultValue: Diagnostics.kNullDefaultValue, level: DiagnosticLevel.debug));
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}
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}
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public class PictureLayer : Layer {
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public PictureLayer(Rect canvasBounds) {
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this.canvasBounds = canvasBounds;
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}
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public readonly Rect canvasBounds;
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Picture _picture;
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public Picture picture {
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get { return this._picture; }
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set {
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this.markNeedsAddToScene();
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this._picture = value;
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}
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}
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bool _isComplexHint = false;
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public bool isComplexHint {
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get { return this._isComplexHint; }
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set {
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if (value != this._isComplexHint) {
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this._isComplexHint = value;
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this.markNeedsAddToScene();
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}
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}
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}
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bool _willChangeHint = false;
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public bool willChangeHint {
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get { return this._willChangeHint; }
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set {
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if (value != this._willChangeHint) {
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this._willChangeHint = value;
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this.markNeedsAddToScene();
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}
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}
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}
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internal override S find<S>(Offset regionOffset) {
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return null;
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}
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internal override flow.Layer addToScene(SceneBuilder builder, Offset layerOffset = null) {
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layerOffset = layerOffset ?? Offset.zero;
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builder.addPicture(layerOffset, this.picture,
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isComplexHint: this.isComplexHint, willChangeHint: this.willChangeHint);
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return null;
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}
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public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
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base.debugFillProperties(properties);
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properties.add(new DiagnosticsProperty<Rect>("paint bounds", this.canvasBounds));
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}
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}
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public class TextureLayer : Layer {
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public TextureLayer(
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Rect rect,
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Texture texture,
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bool freeze = false
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) {
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D.assert(rect != null);
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D.assert(texture != null);
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this.rect = rect;
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this.texture = texture;
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this.freeze = freeze;
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}
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public readonly Rect rect;
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public readonly Texture texture;
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public readonly bool freeze;
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internal override S find<S>(Offset regionOffset) {
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return null;
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}
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internal override flow.Layer addToScene(SceneBuilder builder, Offset layerOffset = null) {
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layerOffset = layerOffset ?? Offset.zero;
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Rect shiftedRect = this.rect.shift(layerOffset);
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builder.addTexture(
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this.texture,
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offset: shiftedRect.topLeft,
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width: shiftedRect.width,
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height: shiftedRect.height,
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freeze: this.freeze
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);
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return null;
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}
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}
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public class ContainerLayer : Layer {
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public Layer firstChild {
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get { return this._firstChild; }
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}
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internal Layer _firstChild;
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public Layer lastChild {
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get { return this._lastChild; }
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}
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internal override S find<S>(Offset regionOffset) {
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Layer current = this.lastChild;
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while (current != null) {
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S value = current.find<S>(regionOffset);
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if (value != null) {
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return value;
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}
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current = current.previousSibling;
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}
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return null;
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}
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internal Layer _lastChild;
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bool _debugUltimatePreviousSiblingOf(Layer child, Layer equals = null) {
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D.assert(child.attached == this.attached);
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while (child.previousSibling != null) {
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D.assert(child.previousSibling != child);
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child = child.previousSibling;
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D.assert(child.attached == this.attached);
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}
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return child == equals;
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}
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bool _debugUltimateNextSiblingOf(Layer child, Layer equals = null) {
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D.assert(child.attached == this.attached);
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while (child._nextSibling != null) {
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D.assert(child._nextSibling != child);
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child = child._nextSibling;
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D.assert(child.attached == this.attached);
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}
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return child == equals;
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}
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PictureLayer _highlightConflictingLayer(PhysicalModelLayer child) {
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PictureRecorder recorder = new PictureRecorder();
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var canvas = new RecorderCanvas(recorder);
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canvas.drawPath(child.clipPath, new Paint() {
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color = new Color(0xFFAA0000),
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style = PaintingStyle.stroke,
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strokeWidth = child.elevation + 10.0f,
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});
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PictureLayer pictureLayer = new PictureLayer(child.clipPath.getBounds());
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pictureLayer.picture = recorder.endRecording();
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pictureLayer.debugCreator = child;
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child.append(pictureLayer);
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return pictureLayer;
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}
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List<PictureLayer> _processConflictingPhysicalLayers(PhysicalModelLayer predecessor, PhysicalModelLayer child) {
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UIWidgetsError.reportError(new UIWidgetsErrorDetails(
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exception: new UIWidgetsError("Painting order is out of order with respect to elevation.\n" +
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"See https://api.flutter.dev/flutter/rendering/debugCheckElevations.html " +
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"for more details."),
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context: "during compositing",
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informationCollector: (StringBuilder builder) => {
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builder.AppendLine("Attempted to composite layer");
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builder.AppendLine(child.ToString());
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builder.AppendLine("after layer");
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builder.AppendLine(predecessor.ToString());
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builder.AppendLine("which occupies the same area at a higher elevation.");
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}
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));
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return new List<PictureLayer> {
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this._highlightConflictingLayer(predecessor),
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this._highlightConflictingLayer(child)
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};
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}
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protected List<PictureLayer> _debugCheckElevations() {
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List<PhysicalModelLayer> physicalModelLayers =
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this.depthFirstIterateChildren().OfType<PhysicalModelLayer>().ToList();
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List<PictureLayer> addedLayers = new List<PictureLayer>();
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for (int i = 0; i < physicalModelLayers.Count; i++) {
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PhysicalModelLayer physicalModelLayer = physicalModelLayers[i];
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D.assert(physicalModelLayer.lastChild?.debugCreator != physicalModelLayer,
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() => "debugCheckElevations has either already visited this layer or failed to remove the" +
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" added picture from it.");
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float accumulatedElevation = physicalModelLayer.elevation;
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Layer ancestor = physicalModelLayer.parent;
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while (ancestor != null) {
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if (ancestor is PhysicalModelLayer modelLayer) {
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accumulatedElevation += modelLayer.elevation;
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}
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ancestor = ancestor.parent;
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}
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for (int j = 0; j <= i; j++) {
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PhysicalModelLayer predecessor = physicalModelLayers[j];
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float predecessorAccumulatedElevation = predecessor.elevation;
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ancestor = predecessor.parent;
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while (ancestor != null) {
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if (ancestor == predecessor) {
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continue;
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}
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if (ancestor is PhysicalModelLayer modelLayer) {
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predecessorAccumulatedElevation += modelLayer.elevation;
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}
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ancestor = ancestor.parent;
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}
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if (predecessorAccumulatedElevation <= accumulatedElevation) {
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continue;
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}
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Path intersection = Path.combine(
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PathOperation.intersect,
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predecessor._debugTransformedClipPath,
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physicalModelLayer._debugTransformedClipPath);
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if (intersection != null && intersection.computeMetrics().Any((metric) => metric.length > 0)) {
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addedLayers.AddRange(this._processConflictingPhysicalLayers(predecessor, physicalModelLayer));
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}
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}
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}
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return addedLayers;
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}
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internal override void updateSubtreeNeedsAddToScene() {
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base.updateSubtreeNeedsAddToScene();
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Layer child = this.firstChild;
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while (child != null) {
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child.updateSubtreeNeedsAddToScene();
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this._subtreeNeedsAddToScene = this._subtreeNeedsAddToScene || child._subtreeNeedsAddToScene;
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child = child.nextSibling;
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}
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}
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public override void attach(object owner) {
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base.attach(owner);
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var child = this.firstChild;
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while (child != null) {
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child.attach(owner);
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child = child.nextSibling;
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}
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}
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public override void detach() {
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base.detach();
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var child = this.firstChild;
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while (child != null) {
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child.detach();
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child = child.nextSibling;
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}
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}
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public void append(Layer child) {
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D.assert(child != this);
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D.assert(child != this.firstChild);
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D.assert(child != this.lastChild);
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D.assert(child.parent == null);
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D.assert(!child.attached);
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D.assert(child.nextSibling == null);
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D.assert(child.previousSibling == null);
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D.assert(() => {
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Layer node = this;
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while (node.parent != null) {
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node = node.parent;
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}
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D.assert(node != child);
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return true;
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});
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this.adoptChild(child);
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child._previousSibling = this.lastChild;
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if (this.lastChild != null) {
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this.lastChild._nextSibling = child;
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}
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this._lastChild = child;
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if (this._firstChild == null) {
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this._firstChild = child;
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}
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D.assert(child.attached == this.attached);
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}
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internal void _removeChild(Layer child) {
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D.assert(child.parent == this);
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D.assert(child.attached == this.attached);
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D.assert(this._debugUltimatePreviousSiblingOf(child, equals: this.firstChild));
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D.assert(this._debugUltimateNextSiblingOf(child, equals: this.lastChild));
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if (child._previousSibling == null) {
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D.assert(this.firstChild == child);
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this._firstChild = child.nextSibling;
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}
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else {
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child._previousSibling._nextSibling = child.nextSibling;
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}
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if (child._nextSibling == null) {
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D.assert(this.lastChild == child);
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this._lastChild = child.previousSibling;
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}
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else {
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child._nextSibling._previousSibling = child.previousSibling;
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}
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D.assert((this.firstChild == null) == (this.lastChild == null));
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D.assert(this.firstChild == null || this.firstChild.attached == this.attached);
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D.assert(this.lastChild == null || this.lastChild.attached == this.attached);
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D.assert(this.firstChild == null ||
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this._debugUltimateNextSiblingOf(this.firstChild, equals: this.lastChild));
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D.assert(this.lastChild == null ||
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this._debugUltimatePreviousSiblingOf(this.lastChild, equals: this.firstChild));
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child._nextSibling = null;
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child._previousSibling = null;
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this.dropChild(child);
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D.assert(!child.attached);
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}
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public void removeAllChildren() {
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Layer child = this.firstChild;
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while (child != null) {
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Layer next = child.nextSibling;
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child._previousSibling = null;
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child._nextSibling = null;
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D.assert(child.attached == this.attached);
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this.dropChild(child);
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child = next;
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}
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this._firstChild = null;
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this._lastChild = null;
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}
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internal override flow.Layer addToScene(SceneBuilder builder, Offset layerOffset = null) {
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this.addChildrenToScene(builder, layerOffset);
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return null;
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}
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public void addChildrenToScene(SceneBuilder builder, Offset childOffset = null) {
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Layer child = this.firstChild;
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while (child != null) {
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if (childOffset == null || childOffset == Offset.zero) {
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child._addToSceneWithRetainedRendering(builder);
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}
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else {
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child.addToScene(builder, childOffset);
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}
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child = child.nextSibling;
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}
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}
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public virtual void applyTransform(Layer child, Matrix4 transform) {
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D.assert(child != null);
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D.assert(transform != null);
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}
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public List<Layer> depthFirstIterateChildren() {
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if (this.firstChild == null) {
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return new List<Layer>();
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}
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List<Layer> children = new List<Layer>();
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Layer child = this.firstChild;
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while (child != null) {
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children.Add(child);
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if (child is ContainerLayer containerLayer) {
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children.AddRange(containerLayer.depthFirstIterateChildren());
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}
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child = child.nextSibling;
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}
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return children;
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}
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public override List<DiagnosticsNode> debugDescribeChildren() {
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var children = new List<DiagnosticsNode>();
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if (this.firstChild == null) {
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return children;
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}
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Layer child = this.firstChild;
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int count = 1;
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while (true) {
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children.Add(child.toDiagnosticsNode(name: "child " + count));
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if (child == this.lastChild) {
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break;
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}
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count += 1;
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child = child.nextSibling;
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}
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return children;
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}
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}
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public class OffsetLayer : ContainerLayer {
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public OffsetLayer(Offset offset = null) {
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this._offset = offset ?? Offset.zero;
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}
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Offset _offset;
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public Offset offset {
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get { return this._offset; }
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set {
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value = value ?? Offset.zero;
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if (value != this._offset) {
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this._offset = value;
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this.markNeedsAddToScene();
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}
|
|
}
|
|
}
|
|
|
|
internal override S find<S>(Offset regionOffset) {
|
|
return base.find<S>(regionOffset - this.offset);
|
|
}
|
|
|
|
public override void applyTransform(Layer child, Matrix4 transform) {
|
|
D.assert(child != null);
|
|
D.assert(transform != null);
|
|
transform.translate(this.offset.dx, this.offset.dy);
|
|
}
|
|
|
|
public Scene buildScene(SceneBuilder builder) {
|
|
List<PictureLayer> temporaryLayers = null;
|
|
D.assert(() => {
|
|
if (RenderingDebugUtils.debugCheckElevationsEnabled) {
|
|
temporaryLayers = this._debugCheckElevations();
|
|
}
|
|
|
|
return true;
|
|
});
|
|
this.updateSubtreeNeedsAddToScene();
|
|
this.addToScene(builder);
|
|
Scene scene = builder.build();
|
|
D.assert(() => {
|
|
if (temporaryLayers != null) {
|
|
foreach (PictureLayer temporaryLayer in temporaryLayers) {
|
|
temporaryLayer.remove();
|
|
}
|
|
}
|
|
|
|
return true;
|
|
});
|
|
return scene;
|
|
}
|
|
|
|
internal override flow.Layer addToScene(SceneBuilder builder, Offset layerOffset = null) {
|
|
layerOffset = layerOffset ?? Offset.zero;
|
|
|
|
var engineLayer = builder.pushOffset(
|
|
(float) (layerOffset.dx + this.offset.dx),
|
|
(float) (layerOffset.dy + this.offset.dy));
|
|
this.addChildrenToScene(builder);
|
|
builder.pop();
|
|
return engineLayer;
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(new DiagnosticsProperty<Offset>("offset", this.offset));
|
|
}
|
|
}
|
|
|
|
public class ClipRectLayer : ContainerLayer {
|
|
public ClipRectLayer(
|
|
Rect clipRect = null,
|
|
Clip clipBehavior = Clip.hardEdge
|
|
) {
|
|
D.assert(clipRect != null);
|
|
D.assert(clipBehavior != Clip.none);
|
|
this._clipRect = clipRect;
|
|
this._clipBehavior = clipBehavior;
|
|
}
|
|
|
|
Rect _clipRect;
|
|
|
|
public Rect clipRect {
|
|
get { return this._clipRect; }
|
|
set {
|
|
if (value != this._clipRect) {
|
|
this._clipRect = value;
|
|
this.markNeedsAddToScene();
|
|
}
|
|
}
|
|
}
|
|
|
|
Clip _clipBehavior;
|
|
|
|
public Clip clipBehavior {
|
|
get { return this._clipBehavior; }
|
|
set {
|
|
D.assert(value != Clip.none);
|
|
if (value != this._clipBehavior) {
|
|
this._clipBehavior = value;
|
|
this.markNeedsAddToScene();
|
|
}
|
|
}
|
|
}
|
|
|
|
internal override S find<S>(Offset regionOffset) {
|
|
if (!this.clipRect.contains(regionOffset)) {
|
|
return null;
|
|
}
|
|
|
|
return base.find<S>(regionOffset);
|
|
}
|
|
|
|
internal override flow.Layer addToScene(SceneBuilder builder, Offset layerOffset = null) {
|
|
layerOffset = layerOffset ?? Offset.zero;
|
|
|
|
bool enabled = true;
|
|
D.assert(() => {
|
|
enabled = !D.debugDisableClipLayers;
|
|
return true;
|
|
});
|
|
|
|
if (enabled) {
|
|
builder.pushClipRect(this.clipRect.shift(layerOffset));
|
|
}
|
|
|
|
this.addChildrenToScene(builder, layerOffset);
|
|
|
|
if (enabled) {
|
|
builder.pop();
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(new DiagnosticsProperty<Rect>("clipRect", this.clipRect));
|
|
}
|
|
}
|
|
|
|
public class ClipRRectLayer : ContainerLayer {
|
|
public ClipRRectLayer(
|
|
RRect clipRRect = null,
|
|
Clip clipBehavior = Clip.hardEdge
|
|
) {
|
|
D.assert(clipRRect != null);
|
|
D.assert(clipBehavior != Clip.none);
|
|
this._clipRRect = clipRRect;
|
|
this._clipBehavior = clipBehavior;
|
|
}
|
|
|
|
RRect _clipRRect;
|
|
|
|
public RRect clipRRect {
|
|
get { return this._clipRRect; }
|
|
set {
|
|
if (value != this._clipRRect) {
|
|
this._clipRRect = value;
|
|
this.markNeedsAddToScene();
|
|
}
|
|
}
|
|
}
|
|
|
|
Clip _clipBehavior;
|
|
|
|
public Clip clipBehavior {
|
|
get { return this._clipBehavior; }
|
|
set {
|
|
D.assert(value != Clip.none);
|
|
if (value != this._clipBehavior) {
|
|
this._clipBehavior = value;
|
|
this.markNeedsAddToScene();
|
|
}
|
|
}
|
|
}
|
|
|
|
internal override S find<S>(Offset regionOffset) {
|
|
if (!this.clipRRect.contains(regionOffset)) {
|
|
return null;
|
|
}
|
|
|
|
return base.find<S>(regionOffset);
|
|
}
|
|
|
|
internal override flow.Layer addToScene(SceneBuilder builder, Offset layerOffset = null) {
|
|
layerOffset = layerOffset ?? Offset.zero;
|
|
|
|
bool enabled = true;
|
|
D.assert(() => {
|
|
enabled = !D.debugDisableClipLayers;
|
|
return true;
|
|
});
|
|
|
|
if (enabled) {
|
|
builder.pushClipRRect(this.clipRRect.shift(layerOffset));
|
|
}
|
|
|
|
this.addChildrenToScene(builder, layerOffset);
|
|
|
|
if (enabled) {
|
|
builder.pop();
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(new DiagnosticsProperty<RRect>("clipRRect", this.clipRRect));
|
|
}
|
|
}
|
|
|
|
public class ClipPathLayer : ContainerLayer {
|
|
public ClipPathLayer(
|
|
Path clipPath = null,
|
|
Clip clipBehavior = Clip.hardEdge
|
|
) {
|
|
D.assert(clipPath != null);
|
|
D.assert(clipBehavior != Clip.none);
|
|
this._clipPath = clipPath;
|
|
this._clipBehavior = clipBehavior;
|
|
}
|
|
|
|
Path _clipPath;
|
|
|
|
public Path clipPath {
|
|
get { return this._clipPath; }
|
|
set {
|
|
if (value != this._clipPath) {
|
|
this._clipPath = value;
|
|
this.markNeedsAddToScene();
|
|
}
|
|
}
|
|
}
|
|
|
|
Clip _clipBehavior;
|
|
|
|
public Clip clipBehavior {
|
|
get { return this._clipBehavior; }
|
|
set {
|
|
D.assert(value != Clip.none);
|
|
if (value != this._clipBehavior) {
|
|
this._clipBehavior = value;
|
|
this.markNeedsAddToScene();
|
|
}
|
|
}
|
|
}
|
|
|
|
internal override S find<S>(Offset regionOffset) {
|
|
if (!this.clipPath.contains(regionOffset)) {
|
|
return null;
|
|
}
|
|
|
|
return base.find<S>(regionOffset);
|
|
}
|
|
|
|
internal override flow.Layer addToScene(SceneBuilder builder, Offset layerOffset = null) {
|
|
layerOffset = layerOffset ?? Offset.zero;
|
|
|
|
bool enabled = true;
|
|
D.assert(() => {
|
|
enabled = !D.debugDisableClipLayers;
|
|
return true;
|
|
});
|
|
|
|
if (enabled) {
|
|
builder.pushClipPath(this.clipPath.shift(layerOffset));
|
|
}
|
|
|
|
this.addChildrenToScene(builder, layerOffset);
|
|
|
|
if (enabled) {
|
|
builder.pop();
|
|
}
|
|
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public class TransformLayer : OffsetLayer {
|
|
public TransformLayer(Matrix4 transform = null, Offset offset = null) : base(offset) {
|
|
this._transform = transform ?? new Matrix4().identity();
|
|
}
|
|
|
|
public Matrix4 transform {
|
|
get { return this._transform; }
|
|
}
|
|
|
|
Matrix4 _transform;
|
|
Matrix4 _lastEffectiveTransform;
|
|
|
|
Matrix4 _invertedTransform;
|
|
bool _inverseDirty = true;
|
|
|
|
internal override S find<S>(Offset regionOffset) {
|
|
if (this._inverseDirty) {
|
|
this._invertedTransform = Matrix4.tryInvert(
|
|
PointerEvent.removePerspectiveTransform(this.transform)
|
|
);
|
|
this._inverseDirty = false;
|
|
}
|
|
|
|
if (this._invertedTransform == null) {
|
|
return null;
|
|
}
|
|
Vector4 vector = new Vector4(regionOffset.dx, regionOffset.dy, 0, 1);
|
|
Vector4 result = this._invertedTransform.transform(vector);
|
|
return base.find<S>(new Offset(result[0], result[1]));
|
|
}
|
|
|
|
internal override flow.Layer addToScene(SceneBuilder builder, Offset layerOffset = null) {
|
|
layerOffset = layerOffset ?? Offset.zero;
|
|
|
|
this._lastEffectiveTransform = this._transform;
|
|
|
|
var totalOffset = this.offset + layerOffset;
|
|
if (totalOffset != Offset.zero) {
|
|
this._lastEffectiveTransform = new Matrix4().translationValues(totalOffset.dx, totalOffset.dy, 0);
|
|
this._lastEffectiveTransform.multiply(this.transform);
|
|
}
|
|
|
|
builder.pushTransform(this._lastEffectiveTransform.toMatrix3());
|
|
this.addChildrenToScene(builder);
|
|
builder.pop();
|
|
return null;
|
|
}
|
|
|
|
public override void applyTransform(Layer child, Matrix4 transform) {
|
|
D.assert(child != null);
|
|
D.assert(transform != null);
|
|
D.assert(this._lastEffectiveTransform != null || this.transform != null);
|
|
if (this._lastEffectiveTransform == null) {
|
|
transform.multiply(this.transform);
|
|
}
|
|
else {
|
|
transform.multiply(this._lastEffectiveTransform);
|
|
}
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(new DiagnosticsProperty<Matrix4>("transform", this.transform));
|
|
}
|
|
}
|
|
|
|
public class OpacityLayer : ContainerLayer {
|
|
public OpacityLayer(int alpha = 255, Offset offset = null) {
|
|
this._alpha = alpha;
|
|
this._offset = offset ?? Offset.zero;
|
|
}
|
|
|
|
int _alpha;
|
|
|
|
public int alpha {
|
|
get { return this._alpha; }
|
|
set {
|
|
if (value != this._alpha) {
|
|
this._alpha = value;
|
|
this.markNeedsAddToScene();
|
|
}
|
|
}
|
|
}
|
|
|
|
Offset _offset;
|
|
|
|
public Offset offset {
|
|
get { return this._offset; }
|
|
set {
|
|
value = value ?? Offset.zero;
|
|
if (value != this._offset) {
|
|
this._offset = value;
|
|
this.markNeedsAddToScene();
|
|
}
|
|
}
|
|
}
|
|
|
|
internal override flow.Layer addToScene(SceneBuilder builder, Offset layerOffset = null) {
|
|
layerOffset = layerOffset ?? Offset.zero;
|
|
|
|
bool enabled = true;
|
|
D.assert(() => {
|
|
enabled = !D.debugDisableOpacityLayers;
|
|
return true;
|
|
});
|
|
if (enabled) {
|
|
builder.pushOpacity(this.alpha, offset: this.offset + layerOffset);
|
|
}
|
|
|
|
this.addChildrenToScene(builder, layerOffset);
|
|
if (enabled) {
|
|
builder.pop();
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(new IntProperty("alpha", this.alpha));
|
|
properties.add(new DiagnosticsProperty<Offset>("offset", this.offset));
|
|
}
|
|
}
|
|
|
|
public class BackdropFilterLayer : ContainerLayer {
|
|
public BackdropFilterLayer(ImageFilter filter = null) {
|
|
D.assert(filter != null);
|
|
this._filter = filter;
|
|
}
|
|
|
|
ImageFilter _filter;
|
|
|
|
public ImageFilter filter {
|
|
get { return this._filter; }
|
|
set {
|
|
if (value != this._filter) {
|
|
this._filter = value;
|
|
this.markNeedsAddToScene();
|
|
}
|
|
}
|
|
}
|
|
|
|
internal override flow.Layer addToScene(SceneBuilder builder, Offset layerOffset = null) {
|
|
builder.pushBackdropFilter(this.filter);
|
|
this.addChildrenToScene(builder, layerOffset);
|
|
builder.pop();
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public class LayerLink {
|
|
public LeaderLayer leader {
|
|
get { return this._leader; }
|
|
}
|
|
|
|
internal LeaderLayer _leader;
|
|
|
|
public override string ToString() {
|
|
return $"{Diagnostics.describeIdentity(this)}({(this._leader != null ? "<linked>" : "<dangling>")})";
|
|
}
|
|
}
|
|
|
|
public class LeaderLayer : ContainerLayer {
|
|
public LeaderLayer(LayerLink link, Offset offset = null) {
|
|
D.assert(link != null);
|
|
offset = offset ?? Offset.zero;
|
|
this.link = link;
|
|
this.offset = offset;
|
|
}
|
|
|
|
public readonly LayerLink link;
|
|
|
|
public Offset offset;
|
|
|
|
protected override bool alwaysNeedsAddToScene {
|
|
get { return true; }
|
|
}
|
|
|
|
public override void attach(object owner) {
|
|
base.attach(owner);
|
|
D.assert(this.link.leader == null);
|
|
this._lastOffset = null;
|
|
this.link._leader = this;
|
|
}
|
|
|
|
public override void detach() {
|
|
D.assert(this.link.leader == this);
|
|
this.link._leader = null;
|
|
this._lastOffset = null;
|
|
base.detach();
|
|
}
|
|
|
|
internal Offset _lastOffset;
|
|
|
|
internal override S find<S>(Offset regionOffset) {
|
|
return base.find<S>(regionOffset - this.offset);
|
|
}
|
|
|
|
internal override flow.Layer addToScene(SceneBuilder builder, Offset layerOffset = null) {
|
|
layerOffset = layerOffset ?? Offset.zero;
|
|
|
|
D.assert(this.offset != null);
|
|
this._lastOffset = this.offset + layerOffset;
|
|
if (this._lastOffset != Offset.zero) {
|
|
builder.pushTransform(new Matrix4()
|
|
.translationValues(this._lastOffset.dx, this._lastOffset.dy,0)
|
|
.toMatrix3());
|
|
}
|
|
|
|
this.addChildrenToScene(builder, Offset.zero);
|
|
if (this._lastOffset != Offset.zero) {
|
|
builder.pop();
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
public override void applyTransform(Layer child, Matrix4 transform) {
|
|
D.assert(this._lastOffset != null);
|
|
if (this._lastOffset != Offset.zero) {
|
|
transform.translate(this._lastOffset.dx, this._lastOffset.dy);
|
|
}
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(new DiagnosticsProperty<Offset>("offset", this.offset));
|
|
properties.add(new DiagnosticsProperty<LayerLink>("link", this.link));
|
|
}
|
|
}
|
|
|
|
public class FollowerLayer : ContainerLayer {
|
|
public FollowerLayer(
|
|
LayerLink link = null,
|
|
bool showWhenUnlinked = true,
|
|
Offset unlinkedOffset = null,
|
|
Offset linkedOffset = null
|
|
) {
|
|
D.assert(link != null);
|
|
this.link = link;
|
|
this.showWhenUnlinked = showWhenUnlinked;
|
|
this.unlinkedOffset = unlinkedOffset ?? Offset.zero;
|
|
this.linkedOffset = linkedOffset ?? Offset.zero;
|
|
}
|
|
|
|
public readonly LayerLink link;
|
|
public bool showWhenUnlinked;
|
|
public Offset unlinkedOffset;
|
|
public Offset linkedOffset;
|
|
|
|
Offset _lastOffset;
|
|
Matrix4 _lastTransform;
|
|
|
|
Matrix4 _invertedTransform = new Matrix4().identity();
|
|
bool _inverseDirty = true;
|
|
|
|
internal override S find<S>(Offset regionOffset) {
|
|
if (this.link.leader == null) {
|
|
return this.showWhenUnlinked ? base.find<S>(regionOffset - this.unlinkedOffset) : null;
|
|
}
|
|
|
|
if (this._inverseDirty) {
|
|
this._invertedTransform = Matrix4.tryInvert(this.getLastTransform());
|
|
this._inverseDirty = false;
|
|
}
|
|
|
|
if (this._invertedTransform == null) {
|
|
return null;
|
|
}
|
|
|
|
Vector4 vector = new Vector4(regionOffset.dx, regionOffset.dy, 0, 1);
|
|
Vector4 result = this._invertedTransform.transform(vector);
|
|
return base.find<S>(new Offset(result[0] - this.linkedOffset.dx, result[1] - this.linkedOffset.dy));
|
|
}
|
|
|
|
public Matrix4 getLastTransform() {
|
|
if (this._lastTransform == null) {
|
|
return null;
|
|
}
|
|
|
|
Matrix4 result = new Matrix4().translationValues(-this._lastOffset.dx, -this._lastOffset.dy,0 );
|
|
result.multiply(this._lastTransform);
|
|
return result;
|
|
}
|
|
|
|
Matrix4 _collectTransformForLayerChain(List<ContainerLayer> layers) {
|
|
Matrix4 result = new Matrix4().identity();
|
|
for (int index = layers.Count - 1; index > 0; index -= 1) {
|
|
layers[index].applyTransform(layers[index - 1], result);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
void _establishTransform() {
|
|
D.assert(this.link != null);
|
|
this._lastTransform = null;
|
|
if (this.link._leader == null) {
|
|
return;
|
|
}
|
|
|
|
D.assert(this.link.leader.owner == this.owner,
|
|
() => "Linked LeaderLayer anchor is not in the same layer tree as the FollowerLayer.");
|
|
D.assert(this.link.leader._lastOffset != null,
|
|
() => "LeaderLayer anchor must come before FollowerLayer in paint order, but the reverse was true.");
|
|
|
|
HashSet<Layer> ancestors = new HashSet<Layer>();
|
|
Layer ancestor = this.parent;
|
|
while (ancestor != null) {
|
|
ancestors.Add(ancestor);
|
|
ancestor = ancestor.parent;
|
|
}
|
|
|
|
ContainerLayer layer = this.link.leader;
|
|
List<ContainerLayer> forwardLayers = new List<ContainerLayer> {null, layer};
|
|
do {
|
|
layer = layer.parent;
|
|
forwardLayers.Add(layer);
|
|
} while (!ancestors.Contains(layer));
|
|
|
|
ancestor = layer;
|
|
|
|
layer = this;
|
|
List<ContainerLayer> inverseLayers = new List<ContainerLayer> {layer};
|
|
do {
|
|
layer = layer.parent;
|
|
inverseLayers.Add(layer);
|
|
} while (layer != ancestor);
|
|
|
|
Matrix4 forwardTransform = this._collectTransformForLayerChain(forwardLayers);
|
|
Matrix4 inverseTransform = this._collectTransformForLayerChain(inverseLayers);
|
|
if (inverseTransform.invert() == 0) {
|
|
return;
|
|
}
|
|
|
|
inverseTransform.multiply(forwardTransform);
|
|
inverseTransform.translate(this.linkedOffset.dx, this.linkedOffset.dy);
|
|
this._lastTransform = inverseTransform;
|
|
this._inverseDirty = true;
|
|
}
|
|
|
|
protected override bool alwaysNeedsAddToScene {
|
|
get { return true; }
|
|
}
|
|
|
|
|
|
internal override flow.Layer addToScene(SceneBuilder builder, Offset layerOffset = null) {
|
|
layerOffset = layerOffset ?? Offset.zero;
|
|
|
|
D.assert(this.link != null);
|
|
if (this.link.leader == null && !this.showWhenUnlinked) {
|
|
this._lastTransform = null;
|
|
this._lastOffset = null;
|
|
this._inverseDirty = true;
|
|
return null;
|
|
}
|
|
|
|
this._establishTransform();
|
|
if (this._lastTransform != null) {
|
|
builder.pushTransform(this._lastTransform.toMatrix3());
|
|
this.addChildrenToScene(builder);
|
|
builder.pop();
|
|
this._lastOffset = this.unlinkedOffset + layerOffset;
|
|
}
|
|
else {
|
|
this._lastOffset = null;
|
|
var matrix = new Matrix4().translationValues(this.unlinkedOffset.dx, this.unlinkedOffset.dy, 0);
|
|
builder.pushTransform(matrix.toMatrix3());
|
|
this.addChildrenToScene(builder);
|
|
builder.pop();
|
|
}
|
|
|
|
this._inverseDirty = true;
|
|
return null;
|
|
}
|
|
|
|
public override void applyTransform(Layer child, Matrix4 transform) {
|
|
D.assert(child != null);
|
|
D.assert(transform != null);
|
|
if (this._lastTransform != null) {
|
|
transform.multiply(this._lastTransform);
|
|
}
|
|
else {
|
|
transform.multiply(new Matrix4().translationValues(this.unlinkedOffset.dx, this.unlinkedOffset.dy, 0));
|
|
}
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(new DiagnosticsProperty<LayerLink>("link", this.link));
|
|
properties.add(new TransformProperty("transform", this.getLastTransform(),
|
|
defaultValue: Diagnostics.kNullDefaultValue));
|
|
}
|
|
}
|
|
|
|
public class PerformanceOverlayLayer : Layer {
|
|
public PerformanceOverlayLayer(
|
|
Rect overlayRect = null,
|
|
int? optionsMask = null
|
|
) {
|
|
D.assert(overlayRect != null);
|
|
D.assert(optionsMask != null);
|
|
this._overlayRect = overlayRect;
|
|
this.optionsMask = optionsMask ?? 0;
|
|
}
|
|
|
|
public Rect overlayRect {
|
|
get { return this._overlayRect; }
|
|
set {
|
|
if (value != this._overlayRect) {
|
|
this._overlayRect = value;
|
|
this.markNeedsAddToScene();
|
|
}
|
|
}
|
|
}
|
|
|
|
Rect _overlayRect;
|
|
|
|
public readonly int optionsMask;
|
|
|
|
internal override S find<S>(Offset regionOffset) {
|
|
return null;
|
|
}
|
|
|
|
internal override flow.Layer addToScene(SceneBuilder builder, Offset layerOffset = null) {
|
|
layerOffset = layerOffset ?? Offset.zero;
|
|
|
|
builder.addPerformanceOverlay(this.optionsMask, this.overlayRect.shift(layerOffset));
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public class AnnotatedRegionLayer<T> : ContainerLayer
|
|
where T : class {
|
|
public AnnotatedRegionLayer(
|
|
T value = null,
|
|
Size size = null,
|
|
Offset offset = null) {
|
|
offset = offset ?? Offset.zero;
|
|
D.assert(value != null);
|
|
this.value = value;
|
|
this.size = size;
|
|
this.offset = offset;
|
|
}
|
|
|
|
public readonly T value;
|
|
|
|
public readonly Size size;
|
|
|
|
public readonly Offset offset;
|
|
|
|
internal override S find<S>(Offset regionOffset) {
|
|
S result = base.find<S>(regionOffset);
|
|
if (result != null) {
|
|
return result;
|
|
}
|
|
|
|
if (this.size != null && !(this.offset & this.size).contains(regionOffset)) {
|
|
return null;
|
|
}
|
|
|
|
if (typeof(T) == typeof(S)) {
|
|
S typedResult = this.value as S;
|
|
return typedResult;
|
|
}
|
|
|
|
return base.find<S>(regionOffset);
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(new DiagnosticsProperty<T>("value", this.value));
|
|
properties.add(new DiagnosticsProperty<Size>("size", this.size, defaultValue: null));
|
|
properties.add(new DiagnosticsProperty<Offset>("offset", this.offset, defaultValue: null));
|
|
}
|
|
}
|
|
|
|
|
|
public class PhysicalModelLayer : ContainerLayer {
|
|
public PhysicalModelLayer(
|
|
Path clipPath = null,
|
|
Clip clipBehavior = Clip.none,
|
|
float? elevation = null,
|
|
Color color = null,
|
|
Color shadowColor = null) {
|
|
D.assert(clipPath != null);
|
|
D.assert(elevation != null);
|
|
D.assert(color != null);
|
|
D.assert(shadowColor != null);
|
|
this._clipPath = clipPath;
|
|
this._clipBehavior = clipBehavior;
|
|
this._elevation = elevation.Value;
|
|
this._color = color;
|
|
this.shadowColor = shadowColor;
|
|
}
|
|
|
|
public Path clipPath {
|
|
get { return this._clipPath; }
|
|
set {
|
|
if (value != this._clipPath) {
|
|
this._clipPath = value;
|
|
this.markNeedsAddToScene();
|
|
}
|
|
}
|
|
}
|
|
|
|
Path _clipPath;
|
|
|
|
public Clip clipBehavior {
|
|
get { return this._clipBehavior; }
|
|
set {
|
|
if (value != this._clipBehavior) {
|
|
this._clipBehavior = value;
|
|
this.markNeedsAddToScene();
|
|
}
|
|
}
|
|
}
|
|
|
|
internal Path _debugTransformedClipPath {
|
|
get {
|
|
ContainerLayer ancestor = this.parent;
|
|
Matrix4 matrix = new Matrix4().identity();
|
|
while (ancestor != null && ancestor.parent != null) {
|
|
ancestor.applyTransform(this, matrix);
|
|
ancestor = ancestor.parent;
|
|
}
|
|
|
|
return this.clipPath.transform(matrix.toMatrix3());
|
|
}
|
|
}
|
|
|
|
|
|
Clip _clipBehavior;
|
|
|
|
public float elevation {
|
|
get { return this._elevation; }
|
|
set {
|
|
if (value != this._elevation) {
|
|
this._elevation = value;
|
|
this.markNeedsAddToScene();
|
|
}
|
|
}
|
|
}
|
|
|
|
float _elevation;
|
|
|
|
public Color color {
|
|
get { return this._color; }
|
|
set {
|
|
if (value != this._color) {
|
|
this._color = value;
|
|
this.markNeedsAddToScene();
|
|
}
|
|
}
|
|
}
|
|
|
|
Color _color;
|
|
|
|
public Color shadowColor {
|
|
get { return this._shadowColor; }
|
|
set {
|
|
if (value != this._shadowColor) {
|
|
this._shadowColor = value;
|
|
this.markNeedsAddToScene();
|
|
}
|
|
}
|
|
}
|
|
|
|
Color _shadowColor;
|
|
|
|
internal override S find<S>(Offset regionOffset) {
|
|
if (!this.clipPath.contains(regionOffset)) {
|
|
return null;
|
|
}
|
|
|
|
return base.find<S>(regionOffset);
|
|
}
|
|
|
|
internal override flow.Layer addToScene(SceneBuilder builder, Offset layerOffset = null) {
|
|
layerOffset = layerOffset ?? Offset.zero;
|
|
|
|
builder.pushPhysicalShape(
|
|
path: this.clipPath.shift(layerOffset),
|
|
elevation: this.elevation,
|
|
color: this.color,
|
|
shadowColor: this.shadowColor,
|
|
clipBehavior: this.clipBehavior);
|
|
|
|
this.addChildrenToScene(builder, layerOffset);
|
|
|
|
builder.pop();
|
|
return null;
|
|
}
|
|
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(new FloatProperty("elevation", this.elevation));
|
|
properties.add(new DiagnosticsProperty<Color>("color", this.color));
|
|
}
|
|
}
|
|
}
|