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2627 行
87 KiB
2627 行
87 KiB
using System.Collections.Generic;
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using Unity.UIWidgets.animation;
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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 Gradient = Unity.UIWidgets.ui.Gradient;
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using TextStyle = Unity.UIWidgets.painting.TextStyle;
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namespace Unity.UIWidgets.rendering {
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public class RenderProxyBox : RenderProxyBoxMixinRenderObjectWithChildMixinRenderBox<RenderBox> {
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public RenderProxyBox(RenderBox child = null) {
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this.child = child;
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}
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}
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public enum HitTestBehavior {
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deferToChild,
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opaque,
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translucent,
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}
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public abstract class RenderProxyBoxWithHitTestBehavior : RenderProxyBox {
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protected RenderProxyBoxWithHitTestBehavior(
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HitTestBehavior behavior = HitTestBehavior.deferToChild,
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RenderBox child = null
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) : base(child) {
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this.behavior = behavior;
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}
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public HitTestBehavior behavior;
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public override bool hitTest(HitTestResult result, Offset position = null) {
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bool hitTarget = false;
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if (this.size.contains(position)) {
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hitTarget = this.hitTestChildren(result, position: position) || this.hitTestSelf(position);
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if (hitTarget || this.behavior == HitTestBehavior.translucent) {
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result.add(new BoxHitTestEntry(this, position));
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}
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}
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return hitTarget;
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}
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protected override bool hitTestSelf(Offset position) {
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return this.behavior == HitTestBehavior.opaque;
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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 EnumProperty<HitTestBehavior>(
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"behavior", this.behavior, defaultValue: Diagnostics.kNullDefaultValue));
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}
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}
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public class RenderConstrainedBox : RenderProxyBox {
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public RenderConstrainedBox(
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RenderBox child = null,
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BoxConstraints additionalConstraints = null) : base(child) {
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D.assert(additionalConstraints != null);
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D.assert(additionalConstraints.debugAssertIsValid());
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this._additionalConstraints = additionalConstraints;
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}
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public BoxConstraints additionalConstraints {
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get { return this._additionalConstraints; }
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set {
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D.assert(value != null);
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D.assert(value.debugAssertIsValid());
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if (this._additionalConstraints == value) {
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return;
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}
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this._additionalConstraints = value;
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this.markNeedsLayout();
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}
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}
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BoxConstraints _additionalConstraints;
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protected override float computeMinIntrinsicWidth(float height) {
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if (this._additionalConstraints.hasBoundedWidth && this._additionalConstraints.hasTightWidth) {
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return this._additionalConstraints.minWidth;
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}
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float width = base.computeMinIntrinsicWidth(height);
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D.assert(width.isFinite());
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if (!this._additionalConstraints.hasInfiniteWidth) {
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return this._additionalConstraints.constrainWidth(width);
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}
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return width;
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}
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protected override float computeMaxIntrinsicWidth(float height) {
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if (this._additionalConstraints.hasBoundedWidth && this._additionalConstraints.hasTightWidth) {
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return this._additionalConstraints.minWidth;
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}
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float width = base.computeMaxIntrinsicWidth(height);
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D.assert(width.isFinite());
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if (!this._additionalConstraints.hasInfiniteWidth) {
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return this._additionalConstraints.constrainWidth(width);
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}
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return width;
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}
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protected override float computeMinIntrinsicHeight(float width) {
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if (this._additionalConstraints.hasBoundedHeight && this._additionalConstraints.hasTightHeight) {
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return this._additionalConstraints.minHeight;
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}
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float height = base.computeMinIntrinsicHeight(width);
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D.assert(height.isFinite());
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if (!this._additionalConstraints.hasInfiniteHeight) {
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return this._additionalConstraints.constrainHeight(height);
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}
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return height;
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}
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protected override float computeMaxIntrinsicHeight(float width) {
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if (this._additionalConstraints.hasBoundedHeight && this._additionalConstraints.hasTightHeight) {
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return this._additionalConstraints.minHeight;
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}
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float height = base.computeMaxIntrinsicHeight(width);
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D.assert(height.isFinite());
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if (!this._additionalConstraints.hasInfiniteHeight) {
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return this._additionalConstraints.constrainHeight(height);
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}
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return height;
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}
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protected override void performLayout() {
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if (this.child != null) {
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this.child.layout(this._additionalConstraints.enforce(this.constraints), parentUsesSize: true);
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this.size = this.child.size;
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}
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else {
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this.size = this._additionalConstraints.enforce(this.constraints).constrain(Size.zero);
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}
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}
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protected override void debugPaintSize(PaintingContext context, Offset offset) {
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base.debugPaintSize(context, offset);
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D.assert(() => {
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if (this.child == null || this.child.size.isEmpty) {
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var paint = new Paint {
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color = new Color(0x90909090)
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};
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context.canvas.drawRect(offset & this.size, paint);
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}
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return true;
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});
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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(
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new DiagnosticsProperty<BoxConstraints>("additionalConstraints", this.additionalConstraints));
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}
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}
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public class RenderLimitedBox : RenderProxyBox {
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public RenderLimitedBox(
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RenderBox child = null,
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float maxWidth = float.PositiveInfinity,
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float maxHeight = float.PositiveInfinity
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) : base(child) {
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D.assert(maxWidth >= 0.0);
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D.assert(maxHeight >= 0.0);
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this._maxWidth = maxWidth;
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this._maxHeight = maxHeight;
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}
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public float maxWidth {
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get { return this._maxWidth; }
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set {
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D.assert(value >= 0.0);
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if (this._maxWidth == value) {
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return;
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}
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this._maxWidth = value;
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this.markNeedsLayout();
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}
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}
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float _maxWidth;
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public float maxHeight {
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get { return this._maxHeight; }
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set {
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D.assert(value >= 0.0);
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if (this._maxHeight == value) {
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return;
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}
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this._maxHeight = value;
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this.markNeedsLayout();
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}
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}
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float _maxHeight;
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BoxConstraints _limitConstraints(BoxConstraints constraints) {
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return new BoxConstraints(
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minWidth: constraints.minWidth,
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maxWidth: constraints.hasBoundedWidth
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? constraints.maxWidth
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: constraints.constrainWidth(this.maxWidth),
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minHeight: constraints.minHeight,
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maxHeight: constraints.hasBoundedHeight
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? constraints.maxHeight
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: constraints.constrainHeight(this.maxHeight)
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);
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}
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protected override void performLayout() {
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if (this.child != null) {
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this.child.layout(this._limitConstraints(this.constraints), parentUsesSize: true);
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this.size = this.constraints.constrain(this.child.size);
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}
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else {
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this.size = this._limitConstraints(this.constraints).constrain(Size.zero);
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}
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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 FloatProperty("maxWidth", this.maxWidth, defaultValue: float.PositiveInfinity));
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properties.add(new FloatProperty("maxHeight", this.maxHeight, defaultValue: float.PositiveInfinity));
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}
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}
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public class RenderAspectRatio : RenderProxyBox {
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public RenderAspectRatio(float aspectRatio, RenderBox child = null) : base(child) {
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this._aspectRatio = aspectRatio;
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}
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public float aspectRatio {
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get { return this._aspectRatio; }
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set {
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if (this._aspectRatio == value) {
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return;
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}
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this._aspectRatio = value;
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this.markNeedsLayout();
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}
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}
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float _aspectRatio;
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protected override float computeMinIntrinsicWidth(float height) {
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if (height.isFinite()) {
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return height * this._aspectRatio;
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}
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if (this.child != null) {
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return this.child.getMinIntrinsicWidth(height);
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}
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return 0.0f;
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}
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protected override float computeMaxIntrinsicWidth(float height) {
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if (height.isFinite()) {
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return height * this._aspectRatio;
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}
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if (this.child != null) {
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return this.child.getMaxIntrinsicWidth(height);
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}
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return 0.0f;
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}
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protected override float computeMinIntrinsicHeight(float width) {
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if (width.isFinite()) {
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return width / this._aspectRatio;
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}
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if (this.child != null) {
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return this.child.getMinIntrinsicHeight(width);
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}
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return 0.0f;
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}
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protected override float computeMaxIntrinsicHeight(float width) {
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if (width.isFinite()) {
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return width / this._aspectRatio;
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}
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if (this.child != null) {
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return this.child.getMaxIntrinsicHeight(width);
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}
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return 0.0f;
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}
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Size _applyAspectRatio(BoxConstraints constraints) {
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D.assert(constraints.debugAssertIsValid());
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if (constraints.isTight) {
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return constraints.smallest;
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}
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float width = constraints.maxWidth;
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float height = width / this._aspectRatio;
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if (width > constraints.maxWidth) {
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width = constraints.maxWidth;
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height = width / this._aspectRatio;
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}
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if (height > constraints.maxHeight) {
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height = constraints.maxHeight;
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width = height * this._aspectRatio;
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}
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if (width < constraints.minWidth) {
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width = constraints.minWidth;
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height = width / this._aspectRatio;
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}
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if (height < constraints.minHeight) {
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height = constraints.minHeight;
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width = height * this._aspectRatio;
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}
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return constraints.constrain(new Size(width, height));
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}
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protected override void performLayout() {
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this.size = this._applyAspectRatio(this.constraints);
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if (this.child != null) {
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this.child.layout(BoxConstraints.tight(this.size));
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}
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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 FloatProperty("aspectRatio", this.aspectRatio));
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}
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}
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public class RenderIntrinsicWidth : RenderProxyBox {
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public RenderIntrinsicWidth(
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float? stepWidth = null,
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float? stepHeight = null,
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RenderBox child = null
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) : base(child) {
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D.assert(stepWidth == null || stepWidth > 0.0f);
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D.assert(stepHeight == null || stepHeight > 0.0f);
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this._stepWidth = stepWidth;
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this._stepHeight = stepHeight;
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}
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float? _stepWidth;
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public float? stepWidth {
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get { return this._stepWidth; }
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set {
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D.assert(value == null || value > 0.0f);
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if (value == this._stepWidth) {
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return;
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}
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this._stepWidth = value;
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this.markNeedsLayout();
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}
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}
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float? _stepHeight;
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public float? stepHeight {
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get { return this._stepHeight; }
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set {
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D.assert(value == null || value > 0.0f);
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if (value == this._stepHeight) {
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return;
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}
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this._stepHeight = value;
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this.markNeedsLayout();
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}
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}
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static float _applyStep(float input, float? step) {
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D.assert(input.isFinite());
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if (step == null) {
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return input;
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}
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return (input / step.Value).ceil() * step.Value;
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}
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protected override float computeMinIntrinsicWidth(float height) {
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return this.computeMaxIntrinsicWidth(height);
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}
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protected override float computeMaxIntrinsicWidth(float height) {
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if (this.child == null) {
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return 0.0f;
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}
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float width = this.child.getMaxIntrinsicWidth(height);
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return _applyStep(width, this._stepWidth);
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}
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protected override float computeMinIntrinsicHeight(float width) {
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if (this.child == null) {
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return 0.0f;
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}
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if (!width.isFinite()) {
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width = this.computeMaxIntrinsicWidth(float.PositiveInfinity);
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}
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D.assert(width.isFinite());
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float height = this.child.getMinIntrinsicHeight(width);
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return _applyStep(height, this._stepHeight);
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}
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protected override float computeMaxIntrinsicHeight(float width) {
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if (this.child == null) {
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return 0.0f;
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}
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if (!width.isFinite()) {
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width = this.computeMaxIntrinsicWidth(float.PositiveInfinity);
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}
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D.assert(width.isFinite());
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float height = this.child.getMaxIntrinsicHeight(width);
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return _applyStep(height, this._stepHeight);
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}
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protected override void performLayout() {
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if (this.child != null) {
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BoxConstraints childConstraints = this.constraints;
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if (!childConstraints.hasTightWidth) {
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float width = this.child.getMaxIntrinsicWidth(childConstraints.maxHeight);
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D.assert(width.isFinite());
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childConstraints = childConstraints.tighten(width: _applyStep(width, this._stepWidth));
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}
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if (this._stepHeight != null) {
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float height = this.child.getMaxIntrinsicHeight(childConstraints.maxWidth);
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D.assert(height.isFinite());
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childConstraints = childConstraints.tighten(height: _applyStep(height, this._stepHeight));
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}
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this.child.layout(childConstraints, parentUsesSize: true);
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this.size = this.child.size;
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}
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else {
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this.performResize();
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}
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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 FloatProperty("stepWidth", this.stepWidth));
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properties.add(new FloatProperty("stepHeight", this.stepHeight));
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}
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}
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public class RenderIntrinsicHeight : RenderProxyBox {
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public RenderIntrinsicHeight(
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RenderBox child = null
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) : base(child) {
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}
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protected override float computeMinIntrinsicWidth(float height) {
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if (this.child == null) {
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return 0.0f;
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}
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if (!height.isFinite()) {
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height = this.child.getMaxIntrinsicHeight(float.PositiveInfinity);
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}
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D.assert(height.isFinite());
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return this.child.getMinIntrinsicWidth(height);
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}
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protected override float computeMaxIntrinsicWidth(float height) {
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if (this.child == null) {
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return 0.0f;
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}
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if (!height.isFinite()) {
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height = this.child.getMaxIntrinsicHeight(float.PositiveInfinity);
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}
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D.assert(height.isFinite());
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return this.child.getMaxIntrinsicWidth(height);
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}
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protected override float computeMinIntrinsicHeight(float width) {
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return this.computeMaxIntrinsicHeight(width);
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}
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protected override void performLayout() {
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if (this.child != null) {
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BoxConstraints childConstraints = this.constraints;
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if (!childConstraints.hasTightHeight) {
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float height = this.child.getMaxIntrinsicHeight(childConstraints.maxWidth);
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D.assert(height.isFinite());
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childConstraints = childConstraints.tighten(height: height);
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}
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this.child.layout(childConstraints, parentUsesSize: true);
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this.size = this.child.size;
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}
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else {
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this.performResize();
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}
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}
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}
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public class RenderOpacity : RenderProxyBox {
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public RenderOpacity(float opacity = 1.0f, RenderBox child = null) : base(child) {
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D.assert(opacity >= 0.0 && opacity <= 1.0);
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this._opacity = opacity;
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this._alpha = _getAlphaFromOpacity(opacity);
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}
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protected override bool alwaysNeedsCompositing {
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get { return this.child != null && (this._alpha != 0 && this._alpha != 255); }
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}
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int _alpha;
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internal static int _getAlphaFromOpacity(float opacity) {
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return (opacity * 255).round();
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}
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float _opacity;
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public float opacity {
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get { return this._opacity; }
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set {
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D.assert(value >= 0.0 && value <= 1.0);
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if (this._opacity == value) {
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return;
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}
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bool didNeedCompositing = this.alwaysNeedsCompositing;
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this._opacity = value;
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this._alpha = _getAlphaFromOpacity(this._opacity);
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if (didNeedCompositing != this.alwaysNeedsCompositing) {
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this.markNeedsCompositingBitsUpdate();
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}
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this.markNeedsPaint();
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}
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}
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public override void paint(PaintingContext context, Offset offset) {
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if (this.child != null) {
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if (this._alpha == 0) {
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return;
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}
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}
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if (this._alpha == 255) {
|
|
context.paintChild(this.child, offset);
|
|
return;
|
|
}
|
|
|
|
D.assert(this.needsCompositing);
|
|
context.pushOpacity(offset, this._alpha, base.paint);
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(new FloatProperty("opacity", this.opacity));
|
|
}
|
|
}
|
|
|
|
public class RenderAnimatedOpacity : RenderProxyBox {
|
|
public RenderAnimatedOpacity(
|
|
Animation<float> opacity = null,
|
|
RenderBox child = null
|
|
) : base(child) {
|
|
D.assert(opacity != null);
|
|
this.opacity = opacity;
|
|
}
|
|
|
|
|
|
int _alpha;
|
|
|
|
protected override bool alwaysNeedsCompositing {
|
|
get { return this.child != null && this._currentlyNeedsCompositing; }
|
|
}
|
|
|
|
bool _currentlyNeedsCompositing;
|
|
|
|
Animation<float> _opacity;
|
|
|
|
public Animation<float> opacity {
|
|
get { return this._opacity; }
|
|
set {
|
|
D.assert(value != null);
|
|
if (this._opacity == value) {
|
|
return;
|
|
}
|
|
|
|
if (this.attached && this._opacity != null) {
|
|
this._opacity.removeListener(this._updateOpacity);
|
|
}
|
|
|
|
this._opacity = value;
|
|
if (this.attached) {
|
|
this._opacity.addListener(this._updateOpacity);
|
|
}
|
|
|
|
this._updateOpacity();
|
|
}
|
|
}
|
|
|
|
|
|
public override void attach(object owner) {
|
|
base.attach(owner);
|
|
this._opacity.addListener(this._updateOpacity);
|
|
this._updateOpacity(); // in case it changed while we weren't listening
|
|
}
|
|
|
|
public override void detach() {
|
|
this._opacity.removeListener(this._updateOpacity);
|
|
base.detach();
|
|
}
|
|
|
|
public void _updateOpacity() {
|
|
var oldAlpha = this._alpha;
|
|
this._alpha = RenderOpacity._getAlphaFromOpacity(this._opacity.value.clamp(0.0f, 1.0f));
|
|
if (oldAlpha != this._alpha) {
|
|
bool didNeedCompositing = this._currentlyNeedsCompositing;
|
|
this._currentlyNeedsCompositing = this._alpha > 0 && this._alpha < 255;
|
|
if (this.child != null && didNeedCompositing != this._currentlyNeedsCompositing) {
|
|
this.markNeedsCompositingBitsUpdate();
|
|
}
|
|
|
|
this.markNeedsPaint();
|
|
}
|
|
}
|
|
|
|
public override void paint(PaintingContext context, Offset offset) {
|
|
if (this.child != null) {
|
|
if (this._alpha == 0) {
|
|
return;
|
|
}
|
|
|
|
if (this._alpha == 255) {
|
|
context.paintChild(this.child, offset);
|
|
return;
|
|
}
|
|
|
|
D.assert(this.needsCompositing);
|
|
context.pushOpacity(offset, this._alpha, base.paint);
|
|
}
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(new DiagnosticsProperty<Animation<float>>("opacity", this.opacity));
|
|
}
|
|
}
|
|
|
|
public class RenderBackdropFilter : RenderProxyBox {
|
|
public RenderBackdropFilter(
|
|
RenderBox child = null,
|
|
ImageFilter filter = null
|
|
) : base(child) {
|
|
D.assert(filter != null);
|
|
this._filter = filter;
|
|
}
|
|
|
|
ImageFilter _filter;
|
|
|
|
public ImageFilter filter {
|
|
get { return this._filter; }
|
|
set {
|
|
D.assert(value != null);
|
|
if (this._filter == value) {
|
|
return;
|
|
}
|
|
|
|
this.markNeedsPaint();
|
|
}
|
|
}
|
|
|
|
protected override bool alwaysNeedsCompositing {
|
|
get { return this.child != null; }
|
|
}
|
|
|
|
public override void paint(PaintingContext context, Offset offset) {
|
|
if (this.child != null) {
|
|
D.assert(this.needsCompositing);
|
|
context.pushLayer(new BackdropFilterLayer(this.filter), base.paint, offset);
|
|
}
|
|
}
|
|
}
|
|
|
|
public abstract class CustomClipper<T> {
|
|
public CustomClipper(Listenable reclip = null) {
|
|
this._reclip = reclip;
|
|
}
|
|
|
|
public readonly Listenable _reclip;
|
|
|
|
public abstract T getClip(Size size);
|
|
|
|
public virtual Rect getApproximateClipRect(Size size) {
|
|
return Offset.zero & size;
|
|
}
|
|
|
|
public abstract bool shouldReclip(CustomClipper<T> oldClipper);
|
|
|
|
public override string ToString() {
|
|
return this.GetType() + "";
|
|
}
|
|
}
|
|
|
|
public class ShapeBorderClipper : CustomClipper<Path> {
|
|
public ShapeBorderClipper(
|
|
ShapeBorder shape = null) {
|
|
D.assert(shape != null);
|
|
this.shape = shape;
|
|
}
|
|
|
|
public readonly ShapeBorder shape;
|
|
|
|
public override Path getClip(Size size) {
|
|
return this.shape.getOuterPath(Offset.zero & size);
|
|
}
|
|
|
|
public override bool shouldReclip(CustomClipper<Path> oldClipper) {
|
|
if (oldClipper.GetType() != this.GetType()) {
|
|
return true;
|
|
}
|
|
|
|
ShapeBorderClipper typedOldClipper = (ShapeBorderClipper) oldClipper;
|
|
return typedOldClipper.shape != this.shape;
|
|
}
|
|
}
|
|
|
|
public abstract class _RenderCustomClip<T> : RenderProxyBox where T : class {
|
|
protected _RenderCustomClip(
|
|
RenderBox child = null,
|
|
CustomClipper<T> clipper = null,
|
|
Clip clipBehavior = Clip.antiAlias) : base(child: child) {
|
|
this.clipBehavior = clipBehavior;
|
|
this._clipper = clipper;
|
|
}
|
|
|
|
public CustomClipper<T> clipper {
|
|
get { return this._clipper; }
|
|
set {
|
|
if (this._clipper == value) {
|
|
return;
|
|
}
|
|
|
|
CustomClipper<T> oldClipper = this._clipper;
|
|
this._clipper = value;
|
|
D.assert(value != null || oldClipper != null);
|
|
if (value == null || oldClipper == null ||
|
|
value.GetType() != oldClipper.GetType() ||
|
|
value.shouldReclip(oldClipper)) {
|
|
this._markNeedsClip();
|
|
}
|
|
|
|
if (this.attached) {
|
|
oldClipper?._reclip?.removeListener(this._markNeedsClip);
|
|
value?._reclip?.addListener(this._markNeedsClip);
|
|
}
|
|
}
|
|
}
|
|
|
|
protected CustomClipper<T> _clipper;
|
|
|
|
public override void attach(object owner) {
|
|
base.attach(owner);
|
|
this._clipper?._reclip?.addListener(this._markNeedsClip);
|
|
}
|
|
|
|
public override void detach() {
|
|
this._clipper?._reclip?.removeListener(this._markNeedsClip);
|
|
base.detach();
|
|
}
|
|
|
|
protected void _markNeedsClip() {
|
|
this._clip = null;
|
|
this.markNeedsPaint();
|
|
}
|
|
|
|
protected abstract T _defaultClip { get; }
|
|
protected T _clip;
|
|
|
|
public readonly Clip clipBehavior;
|
|
|
|
protected override void performLayout() {
|
|
Size oldSize = this.hasSize ? this.size : null;
|
|
base.performLayout();
|
|
if (oldSize != this.size) {
|
|
this._clip = null;
|
|
}
|
|
}
|
|
|
|
protected void _updateClip() {
|
|
this._clip = this._clip ?? this._clipper?.getClip(this.size) ?? this._defaultClip;
|
|
}
|
|
|
|
public override Rect describeApproximatePaintClip(RenderObject child) {
|
|
return this._clipper?.getApproximateClipRect(this.size) ?? Offset.zero & this.size;
|
|
}
|
|
|
|
protected Paint _debugPaint;
|
|
protected TextPainter _debugText;
|
|
|
|
protected override void debugPaintSize(PaintingContext context, Offset offset) {
|
|
D.assert(() => {
|
|
if (this._debugPaint == null) {
|
|
this._debugPaint = new Paint();
|
|
this._debugPaint.shader = Gradient.linear(
|
|
new Offset(0.0f, 0.0f),
|
|
new Offset(10.0f, 10.0f),
|
|
new List<Color> {
|
|
new Color(0x00000000),
|
|
new Color(0xFFFF00FF),
|
|
}, null, TileMode.repeated);
|
|
this._debugPaint.strokeWidth = 2.0f;
|
|
this._debugPaint.style = PaintingStyle.stroke;
|
|
}
|
|
|
|
if (this._debugText == null) {
|
|
this._debugText = new TextPainter(
|
|
text: new TextSpan(
|
|
text: "x",
|
|
style: new TextStyle(
|
|
color: new Color(0xFFFF00FF),
|
|
fontSize: 14.0f)
|
|
));
|
|
this._debugText.layout();
|
|
}
|
|
|
|
return true;
|
|
});
|
|
}
|
|
}
|
|
|
|
public class RenderClipRect : _RenderCustomClip<Rect> {
|
|
public RenderClipRect(
|
|
RenderBox child = null,
|
|
CustomClipper<Rect> clipper = null,
|
|
Clip clipBehavior = Clip.antiAlias
|
|
) : base(
|
|
child: child,
|
|
clipper: clipper,
|
|
clipBehavior: clipBehavior) {
|
|
}
|
|
|
|
protected override Rect _defaultClip {
|
|
get { return Offset.zero & this.size; }
|
|
}
|
|
|
|
public override bool hitTest(HitTestResult result, Offset position = null) {
|
|
if (this._clipper != null) {
|
|
this._updateClip();
|
|
D.assert(this._clip != null);
|
|
if (!this._clip.contains(position)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return base.hitTest(result, position: position);
|
|
}
|
|
|
|
public override void paint(PaintingContext context, Offset offset) {
|
|
if (this.child != null) {
|
|
this._updateClip();
|
|
context.pushClipRect(this.needsCompositing, offset, this._clip,
|
|
base.paint, clipBehavior: this.clipBehavior);
|
|
}
|
|
}
|
|
|
|
protected override void debugPaintSize(PaintingContext context, Offset offset) {
|
|
D.assert(() => {
|
|
if (this.child != null) {
|
|
base.debugPaintSize(context, offset);
|
|
context.canvas.drawRect(this._clip.shift(offset), this._debugPaint);
|
|
this._debugText.paint(context.canvas,
|
|
offset + new Offset(this._clip.width / 8.0f,
|
|
-(this._debugText.text.style.fontSize ?? 0.0f) * 1.1f));
|
|
}
|
|
|
|
return true;
|
|
});
|
|
}
|
|
}
|
|
|
|
|
|
public class RenderClipRRect : _RenderCustomClip<RRect> {
|
|
public RenderClipRRect(
|
|
RenderBox child = null,
|
|
BorderRadius borderRadius = null,
|
|
CustomClipper<RRect> clipper = null,
|
|
Clip clipBehavior = Clip.antiAlias
|
|
) : base(child: child, clipper: clipper, clipBehavior: clipBehavior) {
|
|
D.assert(clipBehavior != Clip.none);
|
|
this._borderRadius = borderRadius ?? BorderRadius.zero;
|
|
D.assert(this._borderRadius != null || clipper != null);
|
|
}
|
|
|
|
public BorderRadius borderRadius {
|
|
get { return this._borderRadius; }
|
|
set {
|
|
D.assert(value != null);
|
|
if (this._borderRadius == value) {
|
|
return;
|
|
}
|
|
|
|
this._borderRadius = value;
|
|
this._markNeedsClip();
|
|
}
|
|
}
|
|
|
|
BorderRadius _borderRadius;
|
|
|
|
protected override RRect _defaultClip {
|
|
get { return this._borderRadius.toRRect(Offset.zero & this.size); }
|
|
}
|
|
|
|
public override bool hitTest(HitTestResult result, Offset position = null) {
|
|
if (this._clipper != null) {
|
|
this._updateClip();
|
|
D.assert(this._clip != null);
|
|
if (!this._clip.contains(position)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return base.hitTest(result, position: position);
|
|
}
|
|
|
|
public override void paint(PaintingContext context, Offset offset) {
|
|
if (this.child != null) {
|
|
this._updateClip();
|
|
context.pushClipRRect(this.needsCompositing, offset, this._clip.outerRect, this._clip,
|
|
base.paint, clipBehavior: this.clipBehavior);
|
|
}
|
|
}
|
|
|
|
protected override void debugPaintSize(PaintingContext context, Offset offset) {
|
|
D.assert(() => {
|
|
if (this.child != null) {
|
|
base.debugPaintSize(context, offset);
|
|
context.canvas.drawRRect(this._clip.shift(offset), this._debugPaint);
|
|
this._debugText.paint(context.canvas,
|
|
offset + new Offset(this._clip.tlRadiusX,
|
|
-(this._debugText.text.style.fontSize ?? 0.0f) * 1.1f));
|
|
}
|
|
|
|
return true;
|
|
});
|
|
}
|
|
}
|
|
|
|
public class RenderClipOval : _RenderCustomClip<Rect> {
|
|
public RenderClipOval(
|
|
RenderBox child = null,
|
|
CustomClipper<Rect> clipper = null,
|
|
Clip clipBehavior = Clip.antiAlias
|
|
) : base(child: child, clipper: clipper, clipBehavior: clipBehavior) {
|
|
D.assert(clipBehavior != Clip.none);
|
|
}
|
|
|
|
Rect _cachedRect;
|
|
Path _cachedPath;
|
|
|
|
Path _getClipPath(Rect rect) {
|
|
if (rect != this._cachedRect) {
|
|
this._cachedRect = rect;
|
|
this._cachedPath = new Path();
|
|
this._cachedPath.addOval(this._cachedRect);
|
|
}
|
|
|
|
return this._cachedPath;
|
|
}
|
|
|
|
protected override Rect _defaultClip {
|
|
get { return Offset.zero & this.size; }
|
|
}
|
|
|
|
public override bool hitTest(HitTestResult result,
|
|
Offset position = null
|
|
) {
|
|
this._updateClip();
|
|
D.assert(this._clip != null);
|
|
Offset center = this._clip.center;
|
|
Offset offset = new Offset((position.dx - center.dx) / this._clip.width,
|
|
(position.dy - center.dy) / this._clip.height);
|
|
if (offset.distanceSquared > 0.25f) {
|
|
return false;
|
|
}
|
|
|
|
return base.hitTest(result, position: position);
|
|
}
|
|
|
|
public override void paint(PaintingContext context, Offset offset) {
|
|
if (this.child != null) {
|
|
this._updateClip();
|
|
context.pushClipPath(this.needsCompositing, offset, this._clip, this._getClipPath(this._clip),
|
|
base.paint, clipBehavior: this.clipBehavior);
|
|
}
|
|
}
|
|
|
|
protected override void debugPaintSize(PaintingContext context, Offset offset) {
|
|
D.assert(() => {
|
|
if (this.child != null) {
|
|
base.debugPaintSize(context, offset);
|
|
context.canvas.drawPath(this._getClipPath(this._clip).shift(offset), this._debugPaint);
|
|
this._debugText.paint(context.canvas,
|
|
offset + new Offset((this._clip.width - this._debugText.width) / 2.0f,
|
|
-this._debugText.text.style.fontSize * 1.1f ?? 0.0f));
|
|
}
|
|
|
|
return true;
|
|
});
|
|
}
|
|
}
|
|
|
|
public class RenderClipPath : _RenderCustomClip<Path> {
|
|
public RenderClipPath(
|
|
RenderBox child = null,
|
|
CustomClipper<Path> clipper = null,
|
|
Clip clipBehavior = Clip.antiAlias
|
|
) : base(child: child, clipper: clipper, clipBehavior: clipBehavior) {
|
|
D.assert(clipBehavior != Clip.none);
|
|
}
|
|
|
|
protected override Path _defaultClip {
|
|
get {
|
|
var path = new Path();
|
|
path.addRect(Offset.zero & this.size);
|
|
return path;
|
|
}
|
|
}
|
|
|
|
public override bool hitTest(HitTestResult result, Offset position = null) {
|
|
D.assert(position != null);
|
|
|
|
if (this._clipper != null) {
|
|
this._updateClip();
|
|
D.assert(this._clip != null);
|
|
if (!this._clip.contains(position)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return base.hitTest(result, position: position);
|
|
}
|
|
|
|
|
|
public override void paint(PaintingContext context, Offset offset) {
|
|
if (this.child != null) {
|
|
this._updateClip();
|
|
context.pushClipPath(this.needsCompositing, offset, Offset.zero & this.size,
|
|
this._clip, base.paint, clipBehavior: this.clipBehavior);
|
|
}
|
|
}
|
|
|
|
protected override void debugPaintSize(PaintingContext context, Offset offset) {
|
|
D.assert(() => {
|
|
if (this.child != null) {
|
|
base.debugPaintSize(context, offset);
|
|
Path offsetPath = new Path();
|
|
offsetPath.addPath(this._clip, offset);
|
|
context.canvas.drawPath(offsetPath, this._debugPaint);
|
|
this._debugText.paint(context.canvas, offset);
|
|
}
|
|
|
|
return true;
|
|
});
|
|
}
|
|
}
|
|
|
|
public abstract class _RenderPhysicalModelBase<T> : _RenderCustomClip<T> where T : class {
|
|
public _RenderPhysicalModelBase(
|
|
RenderBox child = null,
|
|
float? elevation = null,
|
|
Color color = null,
|
|
Color shadowColor = null,
|
|
Clip clipBehavior = Clip.none,
|
|
CustomClipper<T> clipper = null
|
|
) : base(child: child, clipBehavior: clipBehavior, clipper: clipper) {
|
|
D.assert(elevation != null && elevation >= 0.0f);
|
|
D.assert(color != null);
|
|
D.assert(shadowColor != null);
|
|
this._elevation = elevation ?? 0.0f;
|
|
this._color = color;
|
|
this._shadowColor = shadowColor;
|
|
}
|
|
|
|
public float elevation {
|
|
get { return this._elevation; }
|
|
set {
|
|
D.assert(value >= 0.0f);
|
|
if (this.elevation == value) {
|
|
return;
|
|
}
|
|
|
|
bool didNeedCompositing = this.alwaysNeedsCompositing;
|
|
this._elevation = value;
|
|
if (didNeedCompositing != this.alwaysNeedsCompositing) {
|
|
this.markNeedsCompositingBitsUpdate();
|
|
}
|
|
|
|
this.markNeedsPaint();
|
|
}
|
|
}
|
|
|
|
float _elevation;
|
|
|
|
public Color shadowColor {
|
|
get { return this._shadowColor; }
|
|
set {
|
|
D.assert(value != null);
|
|
if (this.shadowColor == value) {
|
|
return;
|
|
}
|
|
|
|
this._shadowColor = value;
|
|
this.markNeedsPaint();
|
|
}
|
|
}
|
|
|
|
Color _shadowColor;
|
|
|
|
public Color color {
|
|
get { return this._color; }
|
|
set {
|
|
D.assert(value != null);
|
|
if (this.color == value) {
|
|
return;
|
|
}
|
|
|
|
this._color = value;
|
|
this.markNeedsPaint();
|
|
}
|
|
}
|
|
|
|
Color _color;
|
|
|
|
protected static Paint _transparentPaint {
|
|
get { return new Paint {color = new Color(0x00000000)}; }
|
|
}
|
|
|
|
protected override bool alwaysNeedsCompositing {
|
|
get { return this._elevation != 0.0; }
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder description) {
|
|
base.debugFillProperties(description);
|
|
description.add(new FloatProperty("elevation", this.elevation));
|
|
description.add(new DiagnosticsProperty<Color>("color", this.color));
|
|
description.add(new DiagnosticsProperty<Color>("shadowColor", this.shadowColor));
|
|
}
|
|
}
|
|
|
|
public class RenderPhysicalModel : _RenderPhysicalModelBase<RRect> {
|
|
public RenderPhysicalModel(
|
|
RenderBox child = null,
|
|
BoxShape shape = BoxShape.rectangle,
|
|
Clip clipBehavior = Clip.none,
|
|
BorderRadius borderRadius = null,
|
|
float? elevation = 0.0f,
|
|
Color color = null,
|
|
Color shadowColor = null
|
|
) : base(clipBehavior: clipBehavior, child: child, elevation: elevation, color: color,
|
|
shadowColor: shadowColor ?? new Color(0xFF000000)) {
|
|
D.assert(color != null);
|
|
D.assert(elevation != null && elevation >= 0.0f);
|
|
this._shape = shape;
|
|
this._borderRadius = borderRadius;
|
|
}
|
|
|
|
public BoxShape shape {
|
|
get { return this._shape; }
|
|
set {
|
|
if (this.shape == value) {
|
|
return;
|
|
}
|
|
|
|
this._shape = value;
|
|
this._markNeedsClip();
|
|
}
|
|
}
|
|
|
|
BoxShape _shape;
|
|
|
|
public BorderRadius borderRadius {
|
|
get { return this._borderRadius; }
|
|
set {
|
|
if (this.borderRadius == value) {
|
|
return;
|
|
}
|
|
|
|
this._borderRadius = value;
|
|
this._markNeedsClip();
|
|
}
|
|
}
|
|
|
|
BorderRadius _borderRadius;
|
|
|
|
protected override RRect _defaultClip {
|
|
get {
|
|
D.assert(this.hasSize);
|
|
switch (this._shape) {
|
|
case BoxShape.rectangle:
|
|
return (this.borderRadius ?? BorderRadius.zero).toRRect(Offset.zero & this.size);
|
|
case BoxShape.circle:
|
|
Rect rect = Offset.zero & this.size;
|
|
return RRect.fromRectXY(rect, rect.width / 2, rect.height / 2);
|
|
}
|
|
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public override bool hitTest(HitTestResult result, Offset position = null) {
|
|
if (this._clipper != null) {
|
|
this._updateClip();
|
|
D.assert(this._clip != null);
|
|
if (!this._clip.contains(position)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return base.hitTest(result, position: position);
|
|
}
|
|
|
|
|
|
public override void paint(PaintingContext context, Offset offset) {
|
|
if (this.child != null) {
|
|
this._updateClip();
|
|
RRect offsetRRect = this._clip.shift(offset);
|
|
Rect offsetBounds = offsetRRect.outerRect;
|
|
Path offsetRRectAsPath = new Path();
|
|
offsetRRectAsPath.addRRect(offsetRRect);
|
|
|
|
if (this.needsCompositing) {
|
|
PhysicalModelLayer physicalModel = new PhysicalModelLayer(
|
|
clipPath: offsetRRectAsPath,
|
|
clipBehavior: this.clipBehavior,
|
|
elevation: this.elevation,
|
|
color: this.color,
|
|
shadowColor: this.shadowColor);
|
|
context.pushLayer(physicalModel, base.paint, offset, childPaintBounds: offsetBounds);
|
|
}
|
|
else {
|
|
Canvas canvas = context.canvas;
|
|
if (this.elevation != 0.0) {
|
|
canvas.drawRect(
|
|
offsetBounds.inflate(20.0f),
|
|
_transparentPaint
|
|
);
|
|
canvas.drawShadow(
|
|
offsetRRectAsPath,
|
|
this.shadowColor,
|
|
this.elevation,
|
|
this.color.alpha != 0xFF
|
|
);
|
|
}
|
|
|
|
Paint paint = new Paint {color = this.color};
|
|
canvas.drawRRect(offsetRRect, paint);
|
|
context.clipRRectAndPaint(offsetRRect, this.clipBehavior, offsetBounds,
|
|
() => base.paint(context, offset));
|
|
D.assert(context.canvas == canvas, () => "canvas changed even though needsCompositing was false");
|
|
}
|
|
}
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder description) {
|
|
base.debugFillProperties(description);
|
|
description.add(new DiagnosticsProperty<BoxShape>("shape", this.shape));
|
|
description.add(new DiagnosticsProperty<BorderRadius>("borderRadius", this.borderRadius));
|
|
}
|
|
}
|
|
|
|
|
|
public class RenderPhysicalShape : _RenderPhysicalModelBase<Path> {
|
|
public RenderPhysicalShape(
|
|
RenderBox child = null,
|
|
CustomClipper<Path> clipper = null,
|
|
Clip clipBehavior = Clip.none,
|
|
float elevation = 0.0f,
|
|
Color color = null,
|
|
Color shadowColor = null
|
|
) : base(child: child,
|
|
elevation: elevation,
|
|
color: color,
|
|
shadowColor: shadowColor ?? new Color(0xFF000000),
|
|
clipper: clipper,
|
|
clipBehavior: clipBehavior) {
|
|
D.assert(clipper != null);
|
|
D.assert(color != null);
|
|
}
|
|
|
|
protected override Path _defaultClip {
|
|
get {
|
|
Path path = new Path();
|
|
path.addRect(Offset.zero & this.size);
|
|
return path;
|
|
}
|
|
}
|
|
|
|
public override bool hitTest(HitTestResult result, Offset position = null) {
|
|
if (this._clipper != null) {
|
|
this._updateClip();
|
|
D.assert(this._clip != null);
|
|
if (!this._clip.contains(position)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return base.hitTest(result, position: position);
|
|
}
|
|
|
|
|
|
public override void paint(PaintingContext context, Offset offset) {
|
|
if (this.child != null) {
|
|
this._updateClip();
|
|
Rect offsetBounds = offset & this.size;
|
|
Path offsetPath = new Path();
|
|
offsetPath.addPath(this._clip, offset);
|
|
|
|
if (this.needsCompositing) {
|
|
PhysicalModelLayer physicalModel = new PhysicalModelLayer(
|
|
clipPath: offsetPath,
|
|
clipBehavior: this.clipBehavior,
|
|
elevation: this.elevation,
|
|
color: this.color,
|
|
shadowColor: this.shadowColor);
|
|
context.pushLayer(physicalModel, base.paint, offset, childPaintBounds: offsetBounds);
|
|
}
|
|
else {
|
|
Canvas canvas = context.canvas;
|
|
if (this.elevation != 0.0) {
|
|
canvas.drawRect(
|
|
offsetBounds.inflate(20.0f),
|
|
_transparentPaint
|
|
);
|
|
|
|
canvas.drawShadow(
|
|
offsetPath,
|
|
this.shadowColor,
|
|
this.elevation,
|
|
this.color.alpha != 0xFF
|
|
);
|
|
}
|
|
|
|
Paint paint = new Paint {color = this.color, style = PaintingStyle.fill};
|
|
canvas.drawPath(offsetPath, paint);
|
|
context.clipPathAndPaint(offsetPath, this.clipBehavior,
|
|
offsetBounds, () => base.paint(context, offset));
|
|
D.assert(context.canvas == canvas, () => "canvas changed even though needsCompositing was false");
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder description) {
|
|
base.debugFillProperties(description);
|
|
description.add(new DiagnosticsProperty<CustomClipper<Path>>("clipper", this.clipper));
|
|
}
|
|
}
|
|
|
|
public enum DecorationPosition {
|
|
background,
|
|
foreground,
|
|
}
|
|
|
|
public class RenderDecoratedBox : RenderProxyBox {
|
|
public RenderDecoratedBox(
|
|
Decoration decoration = null,
|
|
DecorationPosition position = DecorationPosition.background,
|
|
ImageConfiguration configuration = null,
|
|
RenderBox child = null
|
|
) : base(child) {
|
|
D.assert(decoration != null);
|
|
this._decoration = decoration;
|
|
this._position = position;
|
|
this._configuration = configuration ?? ImageConfiguration.empty;
|
|
}
|
|
|
|
BoxPainter _painter;
|
|
|
|
public Decoration decoration {
|
|
get { return this._decoration; }
|
|
set {
|
|
D.assert(value != null);
|
|
if (value == this._decoration) {
|
|
return;
|
|
}
|
|
|
|
if (this._painter != null) {
|
|
this._painter.Dispose();
|
|
this._painter = null;
|
|
}
|
|
|
|
this._decoration = value;
|
|
this.markNeedsPaint();
|
|
}
|
|
}
|
|
|
|
Decoration _decoration;
|
|
|
|
public DecorationPosition position {
|
|
get { return this._position; }
|
|
set {
|
|
if (value == this._position) {
|
|
return;
|
|
}
|
|
|
|
this._position = value;
|
|
this.markNeedsPaint();
|
|
}
|
|
}
|
|
|
|
DecorationPosition _position;
|
|
|
|
public ImageConfiguration configuration {
|
|
get { return this._configuration; }
|
|
set {
|
|
D.assert(value != null);
|
|
if (value == this._configuration) {
|
|
return;
|
|
}
|
|
|
|
this._configuration = value;
|
|
this.markNeedsPaint();
|
|
}
|
|
}
|
|
|
|
ImageConfiguration _configuration;
|
|
|
|
public override void detach() {
|
|
if (this._painter != null) {
|
|
this._painter.Dispose();
|
|
this._painter = null;
|
|
}
|
|
|
|
base.detach();
|
|
this.markNeedsPaint();
|
|
}
|
|
|
|
protected override bool hitTestSelf(Offset position) {
|
|
return this._decoration.hitTest(this.size, position);
|
|
}
|
|
|
|
public override void paint(PaintingContext context, Offset offset) {
|
|
this._painter = this._painter ?? this._decoration.createBoxPainter(this.markNeedsPaint);
|
|
var filledConfiguration = this.configuration.copyWith(size: this.size);
|
|
|
|
if (this.position == DecorationPosition.background) {
|
|
int debugSaveCount = 0;
|
|
D.assert(() => {
|
|
debugSaveCount = context.canvas.getSaveCount();
|
|
return true;
|
|
});
|
|
|
|
this._painter.paint(context.canvas, offset, filledConfiguration);
|
|
|
|
D.assert(() => {
|
|
if (debugSaveCount != context.canvas.getSaveCount()) {
|
|
throw new UIWidgetsError(
|
|
this._decoration.GetType() + " painter had mismatching save and restore calls.\n" +
|
|
"Before painting the decoration, the canvas save count was $debugSaveCount. " +
|
|
"After painting it, the canvas save count was " + context.canvas.getSaveCount() + ". " +
|
|
"Every call to save() or saveLayer() must be matched by a call to restore().\n" +
|
|
"The decoration was:\n" +
|
|
" " + this.decoration + "\n" +
|
|
"The painter was:\n" +
|
|
" " + this._painter
|
|
);
|
|
}
|
|
|
|
return true;
|
|
});
|
|
|
|
if (this.decoration.isComplex) {
|
|
context.setIsComplexHint();
|
|
}
|
|
}
|
|
|
|
base.paint(context, offset);
|
|
|
|
if (this.position == DecorationPosition.foreground) {
|
|
this._painter.paint(context.canvas, offset, filledConfiguration);
|
|
if (this.decoration.isComplex) {
|
|
context.setIsComplexHint();
|
|
}
|
|
}
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(this._decoration.toDiagnosticsNode(name: "decoration"));
|
|
properties.add(new DiagnosticsProperty<ImageConfiguration>("configuration", this.configuration));
|
|
}
|
|
}
|
|
|
|
public class RenderTransform : RenderProxyBox {
|
|
public RenderTransform(
|
|
Matrix3 transform,
|
|
Offset origin = null,
|
|
Alignment alignment = null,
|
|
bool transformHitTests = true,
|
|
RenderBox child = null
|
|
) : base(child) {
|
|
this.transform = transform;
|
|
this.origin = origin;
|
|
this.alignment = alignment;
|
|
this.transformHitTests = transformHitTests;
|
|
}
|
|
|
|
public Offset origin {
|
|
get { return this._origin; }
|
|
set {
|
|
if (this._origin == value) {
|
|
return;
|
|
}
|
|
|
|
this._origin = value;
|
|
this.markNeedsPaint();
|
|
}
|
|
}
|
|
|
|
Offset _origin;
|
|
|
|
public Alignment alignment {
|
|
get { return this._alignment; }
|
|
set {
|
|
if (this._alignment == value) {
|
|
return;
|
|
}
|
|
|
|
this._alignment = value;
|
|
this.markNeedsPaint();
|
|
}
|
|
}
|
|
|
|
Alignment _alignment;
|
|
|
|
public bool transformHitTests;
|
|
|
|
public Matrix3 transform {
|
|
set {
|
|
if (this._transform == value) {
|
|
return;
|
|
}
|
|
|
|
this._transform = value;
|
|
this.markNeedsPaint();
|
|
}
|
|
}
|
|
|
|
Matrix3 _transform;
|
|
|
|
public void setIdentity() {
|
|
this._transform = Matrix3.I();
|
|
this.markNeedsPaint();
|
|
}
|
|
|
|
public void rotateX(float degrees) {
|
|
//2D, do nothing
|
|
}
|
|
|
|
public void rotateY(float degrees) {
|
|
//2D, do nothing
|
|
}
|
|
|
|
public void rotateZ(float degrees) {
|
|
this._transform.preRotate(degrees);
|
|
this.markNeedsPaint();
|
|
}
|
|
|
|
public void translate(float x, float y = 0.0f, float z = 0.0f) {
|
|
this._transform.preTranslate(x, y);
|
|
this.markNeedsPaint();
|
|
}
|
|
|
|
public void scale(float x, float y, float z) {
|
|
this._transform.preScale(x, y);
|
|
this.markNeedsPaint();
|
|
}
|
|
|
|
Matrix3 _effectiveTransform {
|
|
get {
|
|
Alignment resolvedAlignment = this.alignment;
|
|
if (this._origin == null && resolvedAlignment == null) {
|
|
return this._transform;
|
|
}
|
|
|
|
var result = Matrix3.I();
|
|
if (this._origin != null) {
|
|
result.preTranslate(this._origin.dx, this._origin.dy);
|
|
}
|
|
|
|
Offset translation = null;
|
|
if (resolvedAlignment != null) {
|
|
translation = resolvedAlignment.alongSize(this.size);
|
|
result.preTranslate(translation.dx, translation.dy);
|
|
}
|
|
|
|
result.preConcat(this._transform);
|
|
|
|
if (resolvedAlignment != null) {
|
|
result.preTranslate(-translation.dx, -translation.dy);
|
|
}
|
|
|
|
if (this._origin != null) {
|
|
result.preTranslate(-this._origin.dx, -this._origin.dy);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
}
|
|
|
|
public override bool hitTest(HitTestResult result, Offset position = null) {
|
|
return this.hitTestChildren(result, position: position);
|
|
}
|
|
|
|
protected override bool hitTestChildren(HitTestResult result, Offset position = null) {
|
|
if (this.transformHitTests) {
|
|
var transform = this._effectiveTransform;
|
|
var inverse = Matrix3.I();
|
|
var invertible = transform.invert(inverse);
|
|
|
|
if (!invertible) {
|
|
return false;
|
|
}
|
|
|
|
position = inverse.mapPoint(position);
|
|
}
|
|
|
|
return base.hitTestChildren(result, position: position);
|
|
}
|
|
|
|
public override void paint(PaintingContext context, Offset offset) {
|
|
if (this.child != null) {
|
|
var transform = this._effectiveTransform;
|
|
Offset childOffset = transform.getAsTranslation();
|
|
|
|
if (childOffset == null) {
|
|
context.pushTransform(this.needsCompositing, offset, transform, base.paint);
|
|
}
|
|
else {
|
|
base.paint(context, offset + childOffset);
|
|
}
|
|
}
|
|
}
|
|
|
|
public override void applyPaintTransform(RenderObject child, Matrix3 transform) {
|
|
transform.preConcat(this._effectiveTransform);
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(new DiagnosticsProperty<Matrix3>("transform matrix", this._transform));
|
|
properties.add(new DiagnosticsProperty<Offset>("origin", this.origin));
|
|
properties.add(new DiagnosticsProperty<Alignment>("alignment", this.alignment));
|
|
properties.add(new DiagnosticsProperty<bool>("transformHitTests", this.transformHitTests));
|
|
}
|
|
}
|
|
|
|
public class RenderFittedBox : RenderProxyBox {
|
|
public RenderFittedBox(
|
|
BoxFit fit = BoxFit.contain,
|
|
Alignment alignment = null,
|
|
RenderBox child = null
|
|
) : base(child) {
|
|
this._fit = fit;
|
|
this._alignment = alignment ?? Alignment.center;
|
|
}
|
|
|
|
Alignment _resolvedAlignment;
|
|
|
|
void _resolve() {
|
|
if (this._resolvedAlignment != null) {
|
|
return;
|
|
}
|
|
|
|
this._resolvedAlignment = this.alignment;
|
|
}
|
|
|
|
void _markNeedResolution() {
|
|
this._resolvedAlignment = null;
|
|
this.markNeedsPaint();
|
|
}
|
|
|
|
public BoxFit fit {
|
|
get { return this._fit; }
|
|
set {
|
|
if (this._fit == value) {
|
|
return;
|
|
}
|
|
|
|
this._fit = value;
|
|
this._clearPaintData();
|
|
this.markNeedsPaint();
|
|
}
|
|
}
|
|
|
|
BoxFit _fit;
|
|
|
|
public Alignment alignment {
|
|
get { return this._alignment; }
|
|
set {
|
|
D.assert(value != null);
|
|
if (this._alignment == value) {
|
|
return;
|
|
}
|
|
|
|
this._alignment = value;
|
|
this._clearPaintData();
|
|
this._markNeedResolution();
|
|
}
|
|
}
|
|
|
|
Alignment _alignment;
|
|
|
|
protected override void performLayout() {
|
|
if (this.child != null) {
|
|
this.child.layout(new BoxConstraints(), parentUsesSize: true);
|
|
this.size = this.constraints.constrainSizeAndAttemptToPreserveAspectRatio(this.child.size);
|
|
this._clearPaintData();
|
|
}
|
|
else {
|
|
this.size = this.constraints.smallest;
|
|
}
|
|
}
|
|
|
|
bool? _hasVisualOverflow;
|
|
Matrix3 _transform;
|
|
|
|
void _clearPaintData() {
|
|
this._hasVisualOverflow = null;
|
|
this._transform = null;
|
|
}
|
|
|
|
void _updatePaintData() {
|
|
if (this._transform != null) {
|
|
return;
|
|
}
|
|
|
|
if (this.child == null) {
|
|
this._hasVisualOverflow = false;
|
|
this._transform = Matrix3.I();
|
|
}
|
|
else {
|
|
this._resolve();
|
|
Size childSize = this.child.size;
|
|
FittedSizes sizes = FittedSizes.applyBoxFit(this._fit, childSize, this.size);
|
|
float scaleX = sizes.destination.width / sizes.source.width;
|
|
float scaleY = sizes.destination.height / sizes.source.height;
|
|
Rect sourceRect = this._resolvedAlignment.inscribe(sizes.source, Offset.zero & childSize);
|
|
Rect destinationRect = this._resolvedAlignment.inscribe(sizes.destination, Offset.zero & this.size);
|
|
this._hasVisualOverflow = sourceRect.width < childSize.width || sourceRect.height < childSize.height;
|
|
this._transform = Matrix3.makeTrans(destinationRect.left, destinationRect.top);
|
|
this._transform.postScale(scaleX, scaleY);
|
|
this._transform.postTranslate(-sourceRect.left, -sourceRect.top);
|
|
}
|
|
}
|
|
|
|
void _paintChildWithTransform(PaintingContext context, Offset offset) {
|
|
Offset childOffset = this._transform.getAsTranslation();
|
|
if (childOffset == null) {
|
|
context.pushTransform(this.needsCompositing, offset, this._transform, base.paint);
|
|
}
|
|
else {
|
|
base.paint(context, offset + childOffset);
|
|
}
|
|
}
|
|
|
|
public override void paint(PaintingContext context, Offset offset) {
|
|
if (this.size.isEmpty) {
|
|
return;
|
|
}
|
|
|
|
this._updatePaintData();
|
|
if (this.child != null) {
|
|
if (this._hasVisualOverflow == true) {
|
|
context.pushClipRect(this.needsCompositing, offset, Offset.zero & this.size,
|
|
this._paintChildWithTransform);
|
|
}
|
|
else {
|
|
this._paintChildWithTransform(context, offset);
|
|
}
|
|
}
|
|
}
|
|
|
|
protected override bool hitTestChildren(HitTestResult result, Offset position = null) {
|
|
if (this.size.isEmpty) {
|
|
return false;
|
|
}
|
|
|
|
this._updatePaintData();
|
|
Matrix3 inverse = Matrix3.I();
|
|
if (!this._transform.invert(inverse)) {
|
|
return false;
|
|
}
|
|
|
|
position = inverse.mapPoint(position);
|
|
return base.hitTestChildren(result, position: position);
|
|
}
|
|
|
|
public override void applyPaintTransform(RenderObject child, Matrix3 transform) {
|
|
if (this.size.isEmpty) {
|
|
transform.setAll(0, 0, 0, 0, 0, 0, 0, 0, 0);
|
|
}
|
|
else {
|
|
this._updatePaintData();
|
|
transform.postConcat(this._transform);
|
|
}
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(new EnumProperty<BoxFit>("fit", this.fit));
|
|
properties.add(new DiagnosticsProperty<Alignment>("alignment", this.alignment));
|
|
}
|
|
}
|
|
|
|
public class RenderFractionalTranslation : RenderProxyBox {
|
|
public RenderFractionalTranslation(
|
|
Offset translation = null,
|
|
bool transformHitTests = true,
|
|
RenderBox child = null
|
|
) : base(child: child) {
|
|
D.assert(translation != null);
|
|
this._translation = translation;
|
|
this.transformHitTests = transformHitTests;
|
|
}
|
|
|
|
public Offset translation {
|
|
get { return this._translation; }
|
|
|
|
set {
|
|
D.assert(value != null);
|
|
if (this._translation == value) {
|
|
return;
|
|
}
|
|
|
|
this._translation = value;
|
|
this.markNeedsPaint();
|
|
}
|
|
}
|
|
|
|
Offset _translation;
|
|
|
|
public override bool hitTest(HitTestResult result, Offset position) {
|
|
return this.hitTestChildren(result, position: position);
|
|
}
|
|
|
|
public bool transformHitTests;
|
|
|
|
protected override bool hitTestChildren(HitTestResult result, Offset position) {
|
|
D.assert(!this.debugNeedsLayout);
|
|
if (this.transformHitTests) {
|
|
position = new Offset(
|
|
position.dx - this.translation.dx * this.size.width,
|
|
position.dy - this.translation.dy * this.size.height
|
|
);
|
|
}
|
|
|
|
return base.hitTestChildren(result, position: position);
|
|
}
|
|
|
|
public override void paint(PaintingContext context, Offset offset) {
|
|
D.assert(!this.debugNeedsLayout);
|
|
if (this.child != null) {
|
|
base.paint(context, new Offset(
|
|
offset.dx + this.translation.dx * this.size.width,
|
|
offset.dy + this.translation.dy * this.size.height
|
|
));
|
|
}
|
|
}
|
|
|
|
public override void applyPaintTransform(RenderObject child, Matrix3 transform) {
|
|
transform.preTranslate(this.translation.dx * this.size.width,
|
|
this.translation.dy * this.size.height);
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(new DiagnosticsProperty<Offset>("translation", this.translation));
|
|
properties.add(new DiagnosticsProperty<bool>("transformHitTests", this.transformHitTests));
|
|
}
|
|
}
|
|
|
|
public delegate void PointerDownEventListener(PointerDownEvent evt);
|
|
|
|
public delegate void PointerMoveEventListener(PointerMoveEvent evt);
|
|
|
|
public delegate void PointerUpEventListener(PointerUpEvent evt);
|
|
|
|
public delegate void PointerCancelEventListener(PointerCancelEvent evt);
|
|
|
|
public delegate void PointerScrollEventListener(PointerScrollEvent evt);
|
|
|
|
public class RenderPointerListener : RenderProxyBoxWithHitTestBehavior {
|
|
public RenderPointerListener(
|
|
PointerDownEventListener onPointerDown = null,
|
|
PointerMoveEventListener onPointerMove = null,
|
|
PointerEnterEventListener onPointerEnter = null,
|
|
PointerHoverEventListener onPointerHover = null,
|
|
PointerExitEventListener onPointerExit = null,
|
|
PointerUpEventListener onPointerUp = null,
|
|
PointerCancelEventListener onPointerCancel = null,
|
|
PointerScrollEventListener onPointerScroll = null,
|
|
HitTestBehavior behavior = HitTestBehavior.deferToChild,
|
|
RenderBox child = null
|
|
) : base(behavior: behavior, child: child) {
|
|
this.onPointerDown = onPointerDown;
|
|
this.onPointerMove = onPointerMove;
|
|
this.onPointerUp = onPointerUp;
|
|
this.onPointerCancel = onPointerCancel;
|
|
this.onPointerScroll = onPointerScroll;
|
|
|
|
this._onPointerEnter = onPointerEnter;
|
|
this._onPointerHover = onPointerHover;
|
|
this._onPointerExit = onPointerExit;
|
|
|
|
if (this._onPointerEnter != null || this._onPointerHover != null || this._onPointerExit != null) {
|
|
this._hoverAnnotation = new MouseTrackerAnnotation(
|
|
onEnter: this._onPointerEnter,
|
|
onHover: this._onPointerHover,
|
|
onExit: this._onPointerExit);
|
|
}
|
|
}
|
|
|
|
public PointerDownEventListener onPointerDown;
|
|
|
|
public PointerMoveEventListener onPointerMove;
|
|
|
|
public PointerEnterEventListener onPointerEnter {
|
|
get { return this._onPointerEnter; }
|
|
set {
|
|
if (this._onPointerEnter != value) {
|
|
this._onPointerEnter = value;
|
|
this._updateAnnotations();
|
|
}
|
|
}
|
|
}
|
|
|
|
PointerEnterEventListener _onPointerEnter;
|
|
|
|
public PointerHoverEventListener onPointerHover {
|
|
get { return this._onPointerHover; }
|
|
set {
|
|
if (this._onPointerHover != value) {
|
|
this._onPointerHover = value;
|
|
this._updateAnnotations();
|
|
}
|
|
}
|
|
}
|
|
|
|
PointerHoverEventListener _onPointerHover;
|
|
|
|
public PointerExitEventListener onPointerExit {
|
|
get { return this._onPointerExit; }
|
|
set {
|
|
if (this._onPointerExit != value) {
|
|
this._onPointerExit = value;
|
|
this._updateAnnotations();
|
|
}
|
|
}
|
|
}
|
|
|
|
PointerExitEventListener _onPointerExit;
|
|
|
|
public PointerUpEventListener onPointerUp;
|
|
|
|
public PointerCancelEventListener onPointerCancel;
|
|
|
|
public PointerScrollEventListener onPointerScroll;
|
|
|
|
MouseTrackerAnnotation _hoverAnnotation;
|
|
|
|
void _updateAnnotations() {
|
|
D.assert(this._onPointerEnter != this._hoverAnnotation.onEnter ||
|
|
this._onPointerHover != this._hoverAnnotation.onHover ||
|
|
this._onPointerExit != this._hoverAnnotation.onExit,
|
|
() => "Shouldn't call _updateAnnotations if nothing has changed.");
|
|
|
|
if (this._hoverAnnotation != null && this.attached) {
|
|
RendererBinding.instance.mouseTracker.detachAnnotation(this._hoverAnnotation);
|
|
}
|
|
|
|
if (this._onPointerEnter != null || this._onPointerHover != null || this._onPointerExit != null) {
|
|
this._hoverAnnotation = new MouseTrackerAnnotation(
|
|
onEnter: this._onPointerEnter,
|
|
onHover: this._onPointerHover,
|
|
onExit: this._onPointerExit);
|
|
|
|
if (this.attached) {
|
|
RendererBinding.instance.mouseTracker.attachAnnotation(this._hoverAnnotation);
|
|
}
|
|
}
|
|
else {
|
|
this._hoverAnnotation = null;
|
|
}
|
|
|
|
this.markNeedsPaint();
|
|
}
|
|
|
|
public override void attach(object owner) {
|
|
base.attach(owner);
|
|
if (this._hoverAnnotation != null) {
|
|
RendererBinding.instance.mouseTracker.attachAnnotation(this._hoverAnnotation);
|
|
}
|
|
}
|
|
|
|
public override void detach() {
|
|
base.detach();
|
|
if (this._hoverAnnotation != null) {
|
|
RendererBinding.instance.mouseTracker.detachAnnotation(this._hoverAnnotation);
|
|
}
|
|
}
|
|
|
|
public override void paint(PaintingContext context, Offset offset) {
|
|
if (this._hoverAnnotation != null) {
|
|
AnnotatedRegionLayer<MouseTrackerAnnotation> layer = new AnnotatedRegionLayer<MouseTrackerAnnotation>(
|
|
this._hoverAnnotation, size: this.size, offset: offset);
|
|
|
|
context.pushLayer(layer, base.paint, offset);
|
|
}
|
|
else {
|
|
base.paint(context, offset);
|
|
}
|
|
}
|
|
|
|
protected override void performResize() {
|
|
this.size = this.constraints.biggest;
|
|
}
|
|
|
|
public override void handleEvent(PointerEvent evt, HitTestEntry entry) {
|
|
D.assert(this.debugHandleEvent(evt, entry));
|
|
|
|
if (this.onPointerDown != null && evt is PointerDownEvent) {
|
|
this.onPointerDown((PointerDownEvent) evt);
|
|
return;
|
|
}
|
|
|
|
if (this.onPointerMove != null && evt is PointerMoveEvent) {
|
|
this.onPointerMove((PointerMoveEvent) evt);
|
|
return;
|
|
}
|
|
|
|
if (this.onPointerUp != null && evt is PointerUpEvent) {
|
|
this.onPointerUp((PointerUpEvent) evt);
|
|
return;
|
|
}
|
|
|
|
if (this.onPointerCancel != null && evt is PointerCancelEvent) {
|
|
this.onPointerCancel((PointerCancelEvent) evt);
|
|
return;
|
|
}
|
|
|
|
if (this.onPointerScroll != null && evt is PointerScrollEvent) {
|
|
this.onPointerScroll((PointerScrollEvent) evt);
|
|
}
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
var listeners = new List<string>();
|
|
if (this.onPointerDown != null) {
|
|
listeners.Add("down");
|
|
}
|
|
|
|
if (this.onPointerMove != null) {
|
|
listeners.Add("move");
|
|
}
|
|
|
|
if (this.onPointerEnter != null) {
|
|
listeners.Add("enter");
|
|
}
|
|
|
|
if (this.onPointerHover != null) {
|
|
listeners.Add("hover");
|
|
}
|
|
|
|
if (this.onPointerExit != null) {
|
|
listeners.Add("exit");
|
|
}
|
|
|
|
if (this.onPointerUp != null) {
|
|
listeners.Add("up");
|
|
}
|
|
|
|
if (this.onPointerCancel != null) {
|
|
listeners.Add("cancel");
|
|
}
|
|
|
|
if (listeners.isEmpty()) {
|
|
listeners.Add("<none>");
|
|
}
|
|
|
|
properties.add(new EnumerableProperty<string>("listeners", listeners));
|
|
}
|
|
}
|
|
|
|
public class RenderRepaintBoundary : RenderProxyBox {
|
|
public RenderRepaintBoundary(
|
|
RenderBox child = null
|
|
) : base(child) {
|
|
}
|
|
|
|
public override bool isRepaintBoundary {
|
|
get { return true; }
|
|
}
|
|
|
|
public int debugSymmetricPaintCount {
|
|
get { return this._debugSymmetricPaintCount; }
|
|
}
|
|
|
|
int _debugSymmetricPaintCount = 0;
|
|
|
|
public int debugAsymmetricPaintCount {
|
|
get { return this._debugAsymmetricPaintCount; }
|
|
}
|
|
|
|
int _debugAsymmetricPaintCount = 0;
|
|
|
|
public void debugResetMetrics() {
|
|
D.assert(() => {
|
|
this._debugSymmetricPaintCount = 0;
|
|
this._debugAsymmetricPaintCount = 0;
|
|
return true;
|
|
});
|
|
}
|
|
|
|
public override void debugRegisterRepaintBoundaryPaint(bool includedParent = true, bool includedChild = false) {
|
|
D.assert(() => {
|
|
if (includedParent && includedChild) {
|
|
this._debugSymmetricPaintCount += 1;
|
|
}
|
|
else {
|
|
this._debugAsymmetricPaintCount += 1;
|
|
}
|
|
|
|
return true;
|
|
});
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
bool inReleaseMode = true;
|
|
D.assert(() => {
|
|
inReleaseMode = false;
|
|
if (this.debugSymmetricPaintCount + this.debugAsymmetricPaintCount == 0) {
|
|
properties.add(new MessageProperty("usefulness ratio", "no metrics collected yet (never painted)"));
|
|
}
|
|
else {
|
|
float fraction = (float) this.debugAsymmetricPaintCount /
|
|
(this.debugSymmetricPaintCount + this.debugAsymmetricPaintCount);
|
|
|
|
string diagnosis;
|
|
if (this.debugSymmetricPaintCount + this.debugAsymmetricPaintCount < 5) {
|
|
diagnosis = "insufficient data to draw conclusion (less than five repaints)";
|
|
}
|
|
else if (fraction > 0.9) {
|
|
diagnosis = "this is an outstandingly useful repaint boundary and should definitely be kept";
|
|
}
|
|
else if (fraction > 0.5) {
|
|
diagnosis = "this is a useful repaint boundary and should be kept";
|
|
}
|
|
else if (fraction > 0.30) {
|
|
diagnosis =
|
|
"this repaint boundary is probably useful, but maybe it would be more useful in tandem with adding more repaint boundaries elsewhere";
|
|
}
|
|
else if (fraction > 0.1) {
|
|
diagnosis = "this repaint boundary does sometimes show value, though currently not that often";
|
|
}
|
|
else if (this.debugAsymmetricPaintCount == 0) {
|
|
diagnosis = "this repaint boundary is astoundingly ineffectual and should be removed";
|
|
}
|
|
else {
|
|
diagnosis = "this repaint boundary is not very effective and should probably be removed";
|
|
}
|
|
|
|
properties.add(new PercentProperty("metrics", fraction, unit: "useful",
|
|
tooltip: this.debugSymmetricPaintCount + " bad vs " + this.debugAsymmetricPaintCount +
|
|
" good"));
|
|
properties.add(new MessageProperty("diagnosis", diagnosis));
|
|
}
|
|
|
|
return true;
|
|
});
|
|
if (inReleaseMode) {
|
|
properties.add(DiagnosticsNode.message("(run in checked mode to collect repaint boundary statistics)"));
|
|
}
|
|
}
|
|
}
|
|
|
|
public class RenderIgnorePointer : RenderProxyBox {
|
|
public RenderIgnorePointer(
|
|
RenderBox child = null,
|
|
bool ignoring = true
|
|
) : base(child) {
|
|
this._ignoring = ignoring;
|
|
}
|
|
|
|
public bool ignoring {
|
|
get { return this._ignoring; }
|
|
set {
|
|
if (value == this._ignoring) {
|
|
return;
|
|
}
|
|
|
|
this._ignoring = value;
|
|
}
|
|
}
|
|
|
|
bool _ignoring;
|
|
|
|
public override bool hitTest(HitTestResult result, Offset position = null) {
|
|
return this.ignoring ? false : base.hitTest(result, position: position);
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(new DiagnosticsProperty<bool>("ignoring", this.ignoring));
|
|
}
|
|
}
|
|
|
|
public class RenderOffstage : RenderProxyBox {
|
|
public RenderOffstage(bool offstage = true,
|
|
RenderBox child = null) : base(child) {
|
|
this._offstage = offstage;
|
|
}
|
|
|
|
public bool offstage {
|
|
get { return this._offstage; }
|
|
|
|
set {
|
|
if (value == this._offstage) {
|
|
return;
|
|
}
|
|
|
|
this._offstage = value;
|
|
this.markNeedsLayoutForSizedByParentChange();
|
|
}
|
|
}
|
|
|
|
bool _offstage;
|
|
|
|
protected override float computeMinIntrinsicWidth(float height) {
|
|
if (this.offstage) {
|
|
return 0.0f;
|
|
}
|
|
|
|
return base.computeMinIntrinsicWidth(height);
|
|
}
|
|
|
|
|
|
protected override float computeMaxIntrinsicWidth(float height) {
|
|
if (this.offstage) {
|
|
return 0.0f;
|
|
}
|
|
|
|
return base.computeMaxIntrinsicWidth(height);
|
|
}
|
|
|
|
protected override float computeMinIntrinsicHeight(float width) {
|
|
if (this.offstage) {
|
|
return 0.0f;
|
|
}
|
|
|
|
return base.computeMinIntrinsicHeight(width);
|
|
}
|
|
|
|
protected override float computeMaxIntrinsicHeight(float width) {
|
|
if (this.offstage) {
|
|
return 0.0f;
|
|
}
|
|
|
|
return base.computeMaxIntrinsicHeight(width);
|
|
}
|
|
|
|
protected override float? computeDistanceToActualBaseline(TextBaseline baseline) {
|
|
if (this.offstage) {
|
|
return null;
|
|
}
|
|
|
|
return base.computeDistanceToActualBaseline(baseline);
|
|
}
|
|
|
|
protected override bool sizedByParent {
|
|
get { return this.offstage; }
|
|
}
|
|
|
|
protected override void performResize() {
|
|
D.assert(this.offstage);
|
|
this.size = this.constraints.smallest;
|
|
}
|
|
|
|
protected override void performLayout() {
|
|
if (this.offstage) {
|
|
this.child?.layout(this.constraints);
|
|
}
|
|
else {
|
|
base.performLayout();
|
|
}
|
|
}
|
|
|
|
public override bool hitTest(HitTestResult result, Offset position) {
|
|
return !this.offstage && base.hitTest(result, position: position);
|
|
}
|
|
|
|
public override void paint(PaintingContext context, Offset offset) {
|
|
if (this.offstage) {
|
|
return;
|
|
}
|
|
|
|
base.paint(context, offset);
|
|
}
|
|
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(new DiagnosticsProperty<bool>("offstage", this.offstage));
|
|
}
|
|
|
|
|
|
public override List<DiagnosticsNode> debugDescribeChildren() {
|
|
if (this.child == null) {
|
|
return new List<DiagnosticsNode>();
|
|
}
|
|
|
|
return new List<DiagnosticsNode> {
|
|
this.child.toDiagnosticsNode(
|
|
name: "child",
|
|
style: this.offstage ? DiagnosticsTreeStyle.offstage : DiagnosticsTreeStyle.sparse
|
|
),
|
|
};
|
|
}
|
|
}
|
|
|
|
public class RenderAbsorbPointer : RenderProxyBox {
|
|
public RenderAbsorbPointer(
|
|
RenderBox child = null,
|
|
bool absorbing = true
|
|
) : base(child) {
|
|
this._absorbing = absorbing;
|
|
}
|
|
|
|
|
|
public bool absorbing {
|
|
get { return this._absorbing; }
|
|
set { this._absorbing = value; }
|
|
}
|
|
|
|
bool _absorbing;
|
|
|
|
public override bool hitTest(HitTestResult result, Offset position) {
|
|
return this.absorbing
|
|
? this.size.contains(position)
|
|
: base.hitTest(result, position: position);
|
|
}
|
|
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(new DiagnosticsProperty<bool>("absorbing", this.absorbing));
|
|
}
|
|
}
|
|
|
|
public class RenderMetaData : RenderProxyBoxWithHitTestBehavior {
|
|
public RenderMetaData(
|
|
object metaData,
|
|
HitTestBehavior behavior = HitTestBehavior.deferToChild,
|
|
RenderBox child = null
|
|
) : base(behavior, child) {
|
|
this.metaData = metaData;
|
|
}
|
|
|
|
public object metaData;
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(new DiagnosticsProperty<object>("metaData", this.metaData));
|
|
}
|
|
}
|
|
|
|
public class RenderLeaderLayer : RenderProxyBox {
|
|
public RenderLeaderLayer(
|
|
LayerLink link = null,
|
|
RenderBox child = null
|
|
) : base(child: child) {
|
|
D.assert(link != null);
|
|
this.link = link;
|
|
}
|
|
|
|
public LayerLink link {
|
|
get { return this._link; }
|
|
set {
|
|
D.assert(value != null);
|
|
if (this._link == value) {
|
|
return;
|
|
}
|
|
|
|
this._link = value;
|
|
this.markNeedsPaint();
|
|
}
|
|
}
|
|
|
|
LayerLink _link;
|
|
|
|
protected override bool alwaysNeedsCompositing {
|
|
get { return true; }
|
|
}
|
|
|
|
public override void paint(PaintingContext context, Offset offset) {
|
|
context.pushLayer(new LeaderLayer(link: this.link, offset: offset), base.paint, Offset.zero);
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(new DiagnosticsProperty<LayerLink>("link", this.link));
|
|
}
|
|
}
|
|
|
|
|
|
class RenderFollowerLayer : RenderProxyBox {
|
|
public RenderFollowerLayer(LayerLink link,
|
|
bool showWhenUnlinked = true,
|
|
Offset offset = null,
|
|
RenderBox child = null
|
|
) : base(child) {
|
|
this.link = link;
|
|
this.showWhenUnlinked = showWhenUnlinked;
|
|
this.offset = offset;
|
|
}
|
|
|
|
public LayerLink link {
|
|
get { return this._link; }
|
|
set {
|
|
D.assert(value != null);
|
|
if (this._link == value) {
|
|
return;
|
|
}
|
|
|
|
this._link = value;
|
|
this.markNeedsPaint();
|
|
}
|
|
}
|
|
|
|
LayerLink _link;
|
|
|
|
public bool showWhenUnlinked {
|
|
get { return this._showWhenUnlinked; }
|
|
set {
|
|
if (this._showWhenUnlinked == value) {
|
|
return;
|
|
}
|
|
|
|
this._showWhenUnlinked = value;
|
|
this.markNeedsPaint();
|
|
}
|
|
}
|
|
|
|
bool _showWhenUnlinked;
|
|
|
|
public Offset offset {
|
|
get { return this._offset; }
|
|
set {
|
|
D.assert(value != null);
|
|
if (this._offset == value) {
|
|
return;
|
|
}
|
|
|
|
this._offset = value;
|
|
this.markNeedsPaint();
|
|
}
|
|
}
|
|
|
|
Offset _offset;
|
|
|
|
public override void detach() {
|
|
this._layer = null;
|
|
base.detach();
|
|
}
|
|
|
|
protected override bool alwaysNeedsCompositing {
|
|
get { return true; }
|
|
}
|
|
|
|
new FollowerLayer _layer;
|
|
|
|
Matrix3 getCurrentTransform() {
|
|
return this._layer?.getLastTransform() ?? Matrix3.I();
|
|
}
|
|
|
|
public override bool hitTest(HitTestResult result, Offset position) {
|
|
return this.hitTestChildren(result, position: position);
|
|
}
|
|
|
|
protected override bool hitTestChildren(HitTestResult result, Offset position) {
|
|
Matrix3 inverse = Matrix3.I();
|
|
if (!this.getCurrentTransform().invert(inverse)) {
|
|
return false;
|
|
}
|
|
|
|
position = inverse.mapPoint(position);
|
|
return base.hitTestChildren(result, position: position);
|
|
}
|
|
|
|
public override void paint(PaintingContext context, Offset offset) {
|
|
this._layer = new FollowerLayer(
|
|
link: this.link,
|
|
showWhenUnlinked: this.showWhenUnlinked,
|
|
linkedOffset: this.offset,
|
|
unlinkedOffset: offset
|
|
);
|
|
context.pushLayer(this._layer,
|
|
base.paint,
|
|
Offset.zero,
|
|
childPaintBounds: Rect.fromLTRB(
|
|
float.NegativeInfinity,
|
|
float.NegativeInfinity,
|
|
float.PositiveInfinity,
|
|
float.PositiveInfinity
|
|
)
|
|
);
|
|
}
|
|
|
|
public override void applyPaintTransform(RenderObject child, Matrix3 transform) {
|
|
transform.preConcat(this.getCurrentTransform());
|
|
}
|
|
|
|
public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
|
|
base.debugFillProperties(properties);
|
|
properties.add(new DiagnosticsProperty<LayerLink>("link", this.link));
|
|
properties.add(new DiagnosticsProperty<bool>("showWhenUnlinked", this.showWhenUnlinked));
|
|
properties.add(new DiagnosticsProperty<Offset>("offset", this.offset));
|
|
properties.add(new TransformProperty("current transform matrix", this.getCurrentTransform()));
|
|
}
|
|
}
|
|
|
|
public class RenderAnnotatedRegion<T> : RenderProxyBox
|
|
where T : class {
|
|
public RenderAnnotatedRegion(
|
|
T value = null,
|
|
bool? sized = null,
|
|
RenderBox child = null
|
|
) : base(child: child) {
|
|
D.assert(value != null);
|
|
D.assert(sized != null);
|
|
this._value = value;
|
|
this._sized = sized.Value;
|
|
}
|
|
|
|
public T value {
|
|
get { return this._value; }
|
|
set {
|
|
if (this._value == value) {
|
|
return;
|
|
}
|
|
|
|
this._value = value;
|
|
this.markNeedsPaint();
|
|
}
|
|
}
|
|
|
|
T _value;
|
|
|
|
public bool sized {
|
|
get { return this._sized; }
|
|
set {
|
|
if (this._sized == value) {
|
|
return;
|
|
}
|
|
|
|
this._sized = value;
|
|
this.markNeedsPaint();
|
|
}
|
|
}
|
|
|
|
bool _sized;
|
|
|
|
protected override bool alwaysNeedsCompositing {
|
|
get { return true; }
|
|
}
|
|
|
|
public override void paint(PaintingContext context, Offset offset) {
|
|
AnnotatedRegionLayer<T> layer =
|
|
new AnnotatedRegionLayer<T>(
|
|
value: this.value,
|
|
size: this.sized ? this.size : null,
|
|
offset: this.sized ? offset : null);
|
|
|
|
context.pushLayer(layer, base.paint, offset);
|
|
}
|
|
}
|
|
}
|