Initial implementation of DrawingImage.

src/Avalonia.Visuals/Media/Drawing.cs

@@ -1,4 +1,6 @@
-namespace Avalonia.Media
+using Avalonia.Platform;
+
+namespace Avalonia.Media
 {
     public abstract class Drawing : AvaloniaObject
     {
@@ -6,4 +8,4 @@
 
         public abstract Rect GetBounds();
     }
-}
+}

src/Avalonia.Visuals/Media/DrawingGroup.cs

@@ -1,5 +1,6 @@
 using Avalonia.Collections;
 using Avalonia.Metadata;
+using Avalonia.Platform;
 
 namespace Avalonia.Media
 {
@@ -55,4 +56,4 @@ namespace Avalonia.Media
             return rect;
         }
     }
-}
+}

src/Avalonia.Visuals/Media/DrawingImage.cs

@@ -0,0 +1,29 @@
+using Avalonia.Platform;
+using Avalonia.Visuals.Media.Imaging;
+
+namespace Avalonia.Media
+{
+    public class DrawingImage : AvaloniaObject, IImage
+    {
+        public static readonly StyledProperty<Drawing> DrawingProperty =
+            AvaloniaProperty.Register<DrawingImage, Drawing>(nameof(Drawing));
+
+        public Drawing Drawing
+        {
+            get => GetValue(DrawingProperty);
+            set => SetValue(DrawingProperty, value);
+        }
+
+        public Size Size => Drawing?.GetBounds().Size ?? default;
+
+        public void Draw(
+            DrawingContext context,
+            double opacity,
+            Rect sourceRect,
+            Rect destRect,
+            BitmapInterpolationMode bitmapInterpolationMode)
+        {
+            Drawing?.Draw(context);
+        }
+    }
+}