Add InnerContentClipMode

Microsoft.Toolkit.Uwp.UI.Media/Enums/InnerContentClipMode.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Microsoft.Toolkit.Uwp.UI.Media
+{
+    /// <summary>
+    /// The method that shadows deriving from <see cref="AttachedCardShadowBase"/> use when clipping their inner content.
+    /// </summary>
+    public enum InnerContentClipMode
+    {
+        /// <summary>
+        /// Use <see cref="Windows.UI.Composition.CompositionMaskBrush"/> to clip inner content.
+        /// </summary>
+        /// <remarks>
+        /// This mode has better performance than <see cref="CompositionGeometricClip"/>.
+        /// </remarks>
+        CompositionMaskBrush,
+
+        /// <summary>
+        /// Use <see cref="Windows.UI.Composition.CompositionGeometricClip"/> to clip inner content.
+        /// </summary>
+        /// <remarks>
+        /// Content clipped in this mode will have smoother corners than when using <see cref="CompositionMaskBrush"/>.
+        /// </remarks>
+        CompositionGeometricClip
+    }
+}