chore: add Ellipse and Rectangle Fill

src/Uno.Toolkit.Skia.WinUI/Controls/Shadows/ShadowContainer.Paint.cs

@@ -8,6 +8,8 @@
 using Microsoft.Extensions.Logging;
 using Uno.Extensions;
 using Uno.Logging;
+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Shapes;
 
 #if IS_WINUI
 using Microsoft.UI.Xaml.Media;
@@ -343,14 +345,20 @@ private bool TryGetContentBackground(out Brush? background)
 			background = null;
 			return false;
 		}
-
 		background = _currentContent switch
 		{
 			Control control => control.Background,
 			Panel panel => panel.Background,
 			Border border => border.Background,
+			Shape shape => shape.Background,
 			_ => null,
 		};
+		background ??= _currentContent switch
+			{
+				Shape Shape => Shape.Fill,
+				_ => null,
+			};
+
 
 		return background != null;
 	}
@@ -368,6 +376,10 @@ private bool TrySetContentBackground(SolidColorBrush background)
 			case Border border:
 				border.Background = background;
 				break;
+			case Shape shape:
+				shape.Background = background;
+				shape.Fill = background;
+				break;
 			default:
 				return false;
 		}

src/Uno.Toolkit.Skia.WinUI/Controls/Shadows/ShadowContainer.cs

@@ -4,6 +4,7 @@
 #if IS_WINUI
 using Microsoft.UI.Xaml;
 using Microsoft.UI.Xaml.Controls;
+using Microsoft.UI.Xaml.Shapes;
 using SkiaSharp.Views.Windows;
 #else
 using Windows.UI.Xaml;
@@ -121,18 +122,23 @@ protected override void OnContentChanged(object oldContent, object newContent)
 					ContentPresenter _ => ContentPresenter.CornerRadiusProperty,
 					Border _ => Border.CornerRadiusProperty,
 					Control _ => Control.CornerRadiusProperty,
-					RelativePanel _ => RelativePanel.CornerRadiusProperty, 
+					Rectangle _ => Rectangle.RadiusXProperty,
+					Ellipse _ => Ellipse.WidthProperty,
+					RelativePanel _ => RelativePanel.CornerRadiusProperty,
 					_ => default,
 
 				};
+				SetCornerRadiusDependencyProperty(newElement, cornerRadiusProperty);
 
-				if (cornerRadiusProperty != null)
+
+				var complementarCornerRadiusProperty = newElement switch
 				{
-					_cornerRadiusChanged.Disposable = newElement.RegisterDisposablePropertyChangedCallback(
-						cornerRadiusProperty,
-						(s, dp) => OnCornerRadiusChanged(s, dp)
-					);
-				}
+					Rectangle _ => Rectangle.RadiusYProperty,
+					Ellipse _ => Ellipse.HeightProperty,
+					_ => default,
+				};
+
+				SetCornerRadiusDependencyProperty(newElement, complementarCornerRadiusProperty);
 			}
 
 			_cornerRadius = cornerRadius;
@@ -142,7 +148,17 @@ protected override void OnContentChanged(object oldContent, object newContent)
 		base.OnContentChanged(oldContent, newContent);
 	}
 
-	private void OnCornerRadiusChanged(DependencyObject sender, DependencyProperty dp)
+	private void SetCornerRadiusDependencyProperty(FrameworkElement newElement, DependencyProperty? cornerRadiusProperty)
+	{
+		if (cornerRadiusProperty != null)
+		{
+			_cornerRadiusChanged.Disposable = newElement.RegisterDisposablePropertyChangedCallback(
+				cornerRadiusProperty,
+				(s, dp) => OnCornerRadiusChanged(s, dp)
+			);
+		}
+	}
+		private void OnCornerRadiusChanged(DependencyObject sender, DependencyProperty dp)
 	{
 		if (_currentContent is { })
 		{
@@ -163,9 +179,10 @@ private static bool TryGetCornerRadius(FrameworkElement element, out CornerRadiu
 			RelativePanel relativePanel => relativePanel.CornerRadius,
 			Grid grid => grid.CornerRadius,
 			Border border => border.CornerRadius,
+			Rectangle border => new CornerRadius(border.RadiusY == 0 ? 0 : (border.RadiusX / border.RadiusY) * (border.Width > border.Height ? border.Width : border.Height)),
+			Ellipse ellipse => new CornerRadius(ellipse.Height == 0 ? 0: (ellipse.Width / ellipse.Height / 2) * (ellipse.Width > ellipse.Height ? ellipse.Width : ellipse.Height)),
 			_ => VisualTreeHelperEx.TryGetDpValue<CornerRadius>(element, "CornerRadius", out var value) ? value : default(CornerRadius?),
 		};
-
 		cornerRadius = localCornerRadius ?? new CornerRadius(0);
 		return localCornerRadius != null;
 	}