-
-
Notifications
You must be signed in to change notification settings - Fork 2.3k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge branch 'feature/custom-visual-sync'
- Loading branch information
Showing
3 changed files
with
170 additions
and
145 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,165 @@ | ||
| using Avalonia.Collections; | ||
| using Avalonia.Collections.Pooled; | ||
| using Avalonia.Media; | ||
| using Avalonia.Rendering.Composition; | ||
| using Avalonia.Rendering.Composition.Server; | ||
| using Avalonia.VisualTree; | ||
|
|
||
| namespace Avalonia; | ||
|
|
||
| public partial class Visual | ||
| { | ||
| internal CompositionDrawListVisual? CompositionVisual { get; private set; } | ||
| internal CompositionVisual? ChildCompositionVisual { get; set; } | ||
|
|
||
|
|
||
| private protected virtual CompositionDrawListVisual CreateCompositionVisual(Compositor compositor) | ||
| => new CompositionDrawListVisual(compositor, | ||
| new ServerCompositionDrawListVisual(compositor.Server, this), this); | ||
|
|
||
| internal CompositionVisual AttachToCompositor(Compositor compositor) | ||
| { | ||
| if (CompositionVisual == null || CompositionVisual.Compositor != compositor) | ||
| { | ||
| CompositionVisual = CreateCompositionVisual(compositor); | ||
| } | ||
|
|
||
| return CompositionVisual; | ||
| } | ||
|
|
||
| internal virtual void DetachFromCompositor() | ||
| { | ||
| if (CompositionVisual != null) | ||
| { | ||
| if (ChildCompositionVisual != null) | ||
| CompositionVisual.Children.Remove(ChildCompositionVisual); | ||
|
|
||
| CompositionVisual.DrawList = null; | ||
| CompositionVisual = null; | ||
| } | ||
| } | ||
|
|
||
| internal virtual void SynchronizeCompositionChildVisuals() | ||
| { | ||
| if(CompositionVisual == null) | ||
| return; | ||
| var compositionChildren = CompositionVisual.Children; | ||
| var visualChildren = (AvaloniaList<Visual>)VisualChildren; | ||
|
|
||
| PooledList<(Visual visual, int index)>? sortedChildren = null; | ||
| if (HasNonUniformZIndexChildren && visualChildren.Count > 1) | ||
| { | ||
| sortedChildren = new (visualChildren.Count); | ||
| for (var c = 0; c < visualChildren.Count; c++) | ||
| sortedChildren.Add((visualChildren[c], c)); | ||
|
|
||
| // Regular Array.Sort is unstable, we need to provide indices as well to avoid reshuffling elements. | ||
| sortedChildren.Sort(static (lhs, rhs) => | ||
| { | ||
| var result = lhs.visual.ZIndex.CompareTo(rhs.visual.ZIndex); | ||
| return result == 0 ? lhs.index.CompareTo(rhs.index) : result; | ||
| }); | ||
| } | ||
|
|
||
| var childVisual = ChildCompositionVisual; | ||
|
|
||
| // Check if the current visual somehow got migrated to another compositor | ||
| if (childVisual != null && childVisual.Compositor != CompositionVisual.Compositor) | ||
| childVisual = null; | ||
|
|
||
| var expectedCount = visualChildren.Count; | ||
| if (childVisual != null) | ||
| expectedCount++; | ||
|
|
||
| if (compositionChildren.Count == expectedCount) | ||
| { | ||
| bool mismatch = false; | ||
| if (sortedChildren != null) | ||
| for (var c = 0; c < visualChildren.Count; c++) | ||
| { | ||
| if (!ReferenceEquals(compositionChildren[c], sortedChildren[c].visual.CompositionVisual)) | ||
| { | ||
| mismatch = true; | ||
| break; | ||
| } | ||
| } | ||
| else | ||
| for (var c = 0; c < visualChildren.Count; c++) | ||
| if (!ReferenceEquals(compositionChildren[c], visualChildren[c].CompositionVisual)) | ||
| { | ||
| mismatch = true; | ||
| break; | ||
| } | ||
|
|
||
| if (childVisual != null && | ||
| !ReferenceEquals(compositionChildren[compositionChildren.Count - 1], childVisual)) | ||
| mismatch = true; | ||
|
|
||
| if (!mismatch) | ||
| { | ||
| sortedChildren?.Dispose(); | ||
| return; | ||
| } | ||
| } | ||
|
|
||
| compositionChildren.Clear(); | ||
| if (sortedChildren != null) | ||
| { | ||
| foreach (var ch in sortedChildren) | ||
| { | ||
| var compositionChild = ch.visual.CompositionVisual; | ||
| if (compositionChild != null) | ||
| compositionChildren.Add(compositionChild); | ||
| } | ||
| sortedChildren.Dispose(); | ||
| } | ||
| else | ||
| foreach (var ch in visualChildren) | ||
| { | ||
| var compositionChild = ch.CompositionVisual; | ||
| if (compositionChild != null) | ||
| compositionChildren.Add(compositionChild); | ||
| } | ||
|
|
||
| if (childVisual != null) | ||
| compositionChildren.Add(childVisual); | ||
| } | ||
|
|
||
| internal virtual void SynchronizeCompositionProperties() | ||
| { | ||
| if(CompositionVisual == null) | ||
| return; | ||
| var comp = CompositionVisual; | ||
|
|
||
| // TODO: Introduce a dirty mask like WPF has, so we don't overwrite properties every time | ||
|
|
||
| comp.Offset = new (Bounds.Left, Bounds.Top, 0); | ||
| comp.Size = new (Bounds.Width, Bounds.Height); | ||
| comp.Visible = IsVisible; | ||
| comp.Opacity = (float)Opacity; | ||
| comp.ClipToBounds = ClipToBounds; | ||
| comp.Clip = Clip?.PlatformImpl; | ||
|
|
||
| if (!Equals(comp.OpacityMask, OpacityMask)) | ||
| comp.OpacityMask = OpacityMask?.ToImmutable(); | ||
|
|
||
| if (!comp.Effect.EffectEquals(Effect)) | ||
| comp.Effect = Effect?.ToImmutable(); | ||
|
|
||
| comp.RenderOptions = RenderOptions; | ||
|
|
||
| var renderTransform = Matrix.Identity; | ||
|
|
||
| if (HasMirrorTransform) | ||
| renderTransform = new Matrix(-1.0, 0.0, 0.0, 1.0, Bounds.Width, 0); | ||
|
|
||
| if (RenderTransform != null) | ||
| { | ||
| var origin = RenderTransformOrigin.ToPixels(new Size(Bounds.Width, Bounds.Height)); | ||
| var offset = Matrix.CreateTranslation(origin); | ||
| renderTransform *= (-offset) * RenderTransform.Value * (offset); | ||
| } | ||
|
|
||
| comp.TransformMatrix = renderTransform; | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters