Avalonia

A cross-platform UI framework for .NET

csharp c-sharp dotnet xaml avaloniaui cross-platform cross-platform-xaml avalonia gui multi-platform user-interface dotnetcore

Branch: main

History

Tim 0279a557b4 Fix RenderTargetBitmap looses effects (#20790 ) * add failing test for RenderTargetBitmap_DropShadowEffect * Fix immidiateRenderer with Effect wasn't working as expected * yet another render test * XML comments for newly added members * Address Copilot review * Add another unit test to ensure the recent changes don't get lost at some point in time * address review * Apply Review suggestion Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> * inline effectPadding * implement feedback for better bounds handling * Update src/Avalonia.Base/Media/DrawingGroup.cs Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * anohter minor fix * Address PR #20790 review comments - Fix RenderDataEffectNode.Bounds to return null when no children exist, preventing empty effect nodes from incorrectly reporting non-null bounds and causing render artifacts due to incorrect dirty rects. Bounds now inflates child bounds by the effect output padding rather than unioning with BoundsRect. - Move effect output padding inflation from callers into DrawingContext implementations (PlatformDrawingContext, RenderDataDrawingContext) so callers pass content bounds to PushEffect and the API handles inflation internally. Remove pre-inflation from ImmediateRenderer. - Fix DrawingGroup.DrawCore to pass effectBounds (inflated) to PushOpacityMask when an Effect is set, so the opacity mask covers the full effect output region (e.g. shadow/blur extending beyond visual bounds). - Fix DrawingGroup.GetBounds to inflate EffectBounds (which now stores content bounds) by the effect output padding. - Fix existing compile error: Rect.IsEmpty() is a method, not property. - Add failing tests for each of the above before fixing. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * Fix DrawingGroup.GetBounds() incorrectly inflating bounds with effect output padding GetBounds() should return content/geometric bounds only, matching WPF behavior. Inflating by GetEffectOutputPadding() caused DrawingImage to shift its coordinate origin by the effect's extent (e.g. a 3.5px shadow offset would displace all content by 3.5px), breaking Should_Render_DrawingGroup_With_Effect render test. Effects render additively outside the content area and must not affect the coordinate system established by GetBounds(). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * Apply suggestions from code review Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> --------- Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> Co-authored-by: Julien Lebosquain <julien@lebosquain.net> Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>	4 months ago
..
Should_Render_DrawingGroup_With_Effect.expected.png	Fix RenderTargetBitmap looses effects (#20790)	4 months ago
Should_Render_LinesAndText.expected.png	Fix transform desync (#16363)	2 years ago

Tim 0279a557b4

Fix RenderTargetBitmap looses effects (#20790 )

* add failing test for RenderTargetBitmap_DropShadowEffect

* Fix immidiateRenderer with Effect wasn't working as expected

* yet another render test

* XML comments for newly added members

* Address Copilot review

* Add another unit test to ensure the recent changes

don't get lost at some point in time

* address review

* Apply Review suggestion

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

* inline effectPadding

* implement feedback for better bounds handling

* Update src/Avalonia.Base/Media/DrawingGroup.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* anohter minor fix

* Address PR #20790 review comments

- Fix RenderDataEffectNode.Bounds to return null when no children exist,
  preventing empty effect nodes from incorrectly reporting non-null bounds
  and causing render artifacts due to incorrect dirty rects.
  Bounds now inflates child bounds by the effect output padding rather
  than unioning with BoundsRect.

- Move effect output padding inflation from callers into DrawingContext
  implementations (PlatformDrawingContext, RenderDataDrawingContext) so
  callers pass content bounds to PushEffect and the API handles inflation
  internally. Remove pre-inflation from ImmediateRenderer.

- Fix DrawingGroup.DrawCore to pass effectBounds (inflated) to
  PushOpacityMask when an Effect is set, so the opacity mask covers
  the full effect output region (e.g. shadow/blur extending beyond
  visual bounds).

- Fix DrawingGroup.GetBounds to inflate EffectBounds (which now stores
  content bounds) by the effect output padding.

- Fix existing compile error: Rect.IsEmpty() is a method, not property.

- Add failing tests for each of the above before fixing.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix DrawingGroup.GetBounds() incorrectly inflating bounds with effect output padding

GetBounds() should return content/geometric bounds only, matching WPF behavior.
Inflating by GetEffectOutputPadding() caused DrawingImage to shift its coordinate
origin by the effect's extent (e.g. a 3.5px shadow offset would displace all
content by 3.5px), breaking Should_Render_DrawingGroup_With_Effect render test.

Effects render additively outside the content area and must not affect the
coordinate system established by GetBounds().

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Apply suggestions from code review

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Julien Lebosquain <julien@lebosquain.net>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

4 months ago

Should_Render_DrawingGroup_With_Effect.expected.png

Fix RenderTargetBitmap looses effects (#20790)

4 months ago

Should_Render_LinesAndText.expected.png

Fix transform desync (#16363)

2 years ago