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Make sure that adorners are actually correctly positioned in visual tree for TransformToVisual and friends (#20691)

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* Make sure that adorners are actually correctly positioned in visual tree for TransformToVisual and friends

* Fixes
This commit is contained in:
Nikita Tsukanov
2026-02-16 19:13:21 +05:00
committed by GitHub
parent 0fb0eb8d61
commit ab5f8fca74
8 changed files with 295 additions and 85 deletions
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samples/ControlCatalog/Pages/AdornerLayerPage.xaml
+23 -13
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@@ -44,21 +44,31 @@
VerticalContentAlignment="Center" VerticalAlignment="Stretch"
Width="200" Height="42">
<AdornerLayer.Adorner>
<Canvas x:Name="AdornerCanvas"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
Background="Cyan"
IsHitTestVisible="False"
Opacity="0.3"
IsVisible="True"
AdornerLayer.IsClipEnabled="False">
<Line StartPoint="-10000,0" EndPoint="10000,0" Stroke="Cyan" StrokeThickness="1" />
<Line StartPoint="-10000,42" EndPoint="10000,42" Stroke="Cyan" StrokeThickness="1" />
<Line StartPoint="0,-10000" EndPoint="0,10000" Stroke="Cyan" StrokeThickness="1" />
<Line StartPoint="200,-10000" EndPoint="200,10000" Stroke="Cyan" StrokeThickness="1" />
</Canvas>
<Border AdornerLayer.IsClipEnabled="False" ClipToBounds="False" Background="Red" Opacity="0.3" Margin="-5" Padding="5"
IsHitTestVisible="False">
<Canvas
x:Name="AdornerCanvas"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
Background="Cyan"
IsHitTestVisible="False"
IsVisible="True"
AdornerLayer.IsClipEnabled="False">
<Line StartPoint="-10000,0" EndPoint="10000,0" Stroke="Cyan" StrokeThickness="1" />
<Line StartPoint="-10000,42" EndPoint="10000,42" Stroke="Cyan" StrokeThickness="1" />
<Line StartPoint="0,-10000" EndPoint="0,10000" Stroke="Cyan" StrokeThickness="1" />
<Line StartPoint="200,-10000" EndPoint="200,10000" Stroke="Cyan" StrokeThickness="1" />
</Canvas>
</Border>
</AdornerLayer.Adorner>
<Button.ContextMenu>
<ContextMenu PlacementTarget="{ResolveByName AdornerCanvas}" Placement="TopEdgeAlignedLeft">
<MenuItem Header="Menu 1"/>
<MenuItem Header="Menu 2"/>
</ContextMenu>
</Button.ContextMenu>
</Button>
</LayoutTransformControl>
</Grid>