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Use try finally block for ImmediateRenderer RenderOptions restore

pull/9584/head
Benedikt Stebner 3 years ago
parent
6ea98c8e6c
commit
6017011b2c
1 changed files with 69 additions and 65 deletions
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  1. 134
      src/Avalonia.Base/Rendering/ImmediateRenderer.cs

134
src/Avalonia.Base/Rendering/ImmediateRenderer.cs
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@ -44,95 +44,99 @@ namespace Avalonia.Rendering
public static void Render(DrawingContext context, Visual visual, Rect clipRect)
{
var opacity = visual.Opacity;
var clipToBounds = visual.ClipToBounds;
var bounds = new Rect(visual.Bounds.Size);
var currentRenderOptions = default(RenderOptions);
var platformContext = context as PlatformDrawingContext;
if (visual.IsVisible && opacity > 0)
try
{
var m = Matrix.CreateTranslation(visual.Bounds.Position);
var renderTransform = Matrix.Identity;
// this should be calculated BEFORE renderTransform
if (visual.HasMirrorTransform)
if (platformContext != null)
{
var mirrorMatrix = new Matrix(-1.0, 0.0, 0.0, 1.0, visual.Bounds.Width, 0);
renderTransform *= mirrorMatrix;
}
currentRenderOptions = platformContext.RenderOptions;
if (visual.RenderTransform != null)
{
var origin = visual.RenderTransformOrigin.ToPixels(new Size(visual.Bounds.Width, visual.Bounds.Height));
var offset = Matrix.CreateTranslation(origin);
var finalTransform = (-offset) * visual.RenderTransform.Value * (offset);
renderTransform *= finalTransform;
platformContext.RenderOptions = visual.RenderOptions.MergeWith(platformContext.RenderOptions);
}
m = renderTransform * m;
var opacity = visual.Opacity;
var clipToBounds = visual.ClipToBounds;
var bounds = new Rect(visual.Bounds.Size);
if (clipToBounds)
if (visual.IsVisible && opacity > 0)
{
var m = Matrix.CreateTranslation(visual.Bounds.Position);
var renderTransform = Matrix.Identity;
// this should be calculated BEFORE renderTransform
if (visual.HasMirrorTransform)
{
var mirrorMatrix = new Matrix(-1.0, 0.0, 0.0, 1.0, visual.Bounds.Width, 0);
renderTransform *= mirrorMatrix;
}
if (visual.RenderTransform != null)
{
clipRect = new Rect(visual.Bounds.Size);
var origin = visual.RenderTransformOrigin.ToPixels(new Size(visual.Bounds.Width, visual.Bounds.Height));
var offset = Matrix.CreateTranslation(origin);
var finalTransform = (-offset) * visual.RenderTransform.Value * (offset);
renderTransform *= finalTransform;
}
else
m = renderTransform * m;
if (clipToBounds)
{
clipRect = clipRect.Intersect(new Rect(visual.Bounds.Size));
if (visual.RenderTransform != null)
{
clipRect = new Rect(visual.Bounds.Size);
}
else
{
clipRect = clipRect.Intersect(new Rect(visual.Bounds.Size));
}
}
}
using (context.PushTransform(m))
using (context.PushOpacity(opacity, bounds))
using (clipToBounds
using (context.PushTransform(m))
using (context.PushOpacity(opacity, bounds))
using (clipToBounds
#pragma warning disable CS0618 // Type or member is obsolete
? visual is IVisualWithRoundRectClip roundClipVisual
? context.PushClip(new RoundedRect(bounds, roundClipVisual.ClipToBoundsRadius))
: context.PushClip(bounds)
: default)
? visual is IVisualWithRoundRectClip roundClipVisual
? context.PushClip(new RoundedRect(bounds, roundClipVisual.ClipToBoundsRadius))
: context.PushClip(bounds)
: default)
#pragma warning restore CS0618 // Type or member is obsolete
using (visual.Clip != null ? context.PushGeometryClip(visual.Clip) : default)
using (visual.OpacityMask != null ? context.PushOpacityMask(visual.OpacityMask, bounds) : default)
using (context.PushTransform(Matrix.Identity))
{
var currentRenderOptions = default(RenderOptions);
var platformContext = context as PlatformDrawingContext;
if(platformContext != null)
using (visual.Clip != null ? context.PushGeometryClip(visual.Clip) : default)
using (visual.OpacityMask != null ? context.PushOpacityMask(visual.OpacityMask, bounds) : default)
using (context.PushTransform(Matrix.Identity))
{
currentRenderOptions = platformContext.RenderOptions;
visual.Render(context);
platformContext.RenderOptions = visual.RenderOptions.MergeWith(platformContext.RenderOptions);
}
visual.Render(context);
var childrenEnumerable = visual.HasNonUniformZIndexChildren
? visual.VisualChildren.OrderBy(x => x, ZIndexComparer.Instance)
: (IEnumerable<Visual>)visual.VisualChildren;
foreach (var child in childrenEnumerable)
{
var childBounds = GetTransformedBounds(child);
var childrenEnumerable = visual.HasNonUniformZIndexChildren
? visual.VisualChildren.OrderBy(x => x, ZIndexComparer.Instance)
: (IEnumerable<Visual>)visual.VisualChildren;
if (!child.ClipToBounds || clipRect.Intersects(childBounds))
foreach (var child in childrenEnumerable)
{
var childClipRect = child.RenderTransform == null
? clipRect.Translate(-childBounds.Position)
: clipRect;
Render(context, child, childClipRect);
}
}
if(platformContext != null)
{
platformContext.RenderOptions = currentRenderOptions;
var childBounds = GetTransformedBounds(child);
if (!child.ClipToBounds || clipRect.Intersects(childBounds))
{
var childClipRect = child.RenderTransform == null
? clipRect.Translate(-childBounds.Position)
: clipRect;
Render(context, child, childClipRect);
}
}
}
}
}
finally
{
if (platformContext != null)
{
platformContext.RenderOptions = currentRenderOptions;
}
}
}
}
}

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