Merge branch 'master' into win_mouse_IntermediatePoints

src/Avalonia.Base/Controls/NameScopeEventArgs.cs

@@ -1,16 +0,0 @@
-using System;
-
-namespace Avalonia.Controls
-{
-    public class NameScopeEventArgs : EventArgs
-    {
-        public NameScopeEventArgs(string name, object element)
-        {
-            Name = name;
-            Element = element;
-        }
-
-        public string Name { get; }
-        public object Element { get; }
-    }
-}

src/Avalonia.Base/Input/DragEventArgs.cs

@@ -32,7 +32,7 @@ namespace Avalonia.Input
             return point;
         }
 
-        public DragEventArgs(RoutedEvent<DragEventArgs> routedEvent, IDataObject data, Interactive target, Point targetLocation, KeyModifiers keyModifiers)
+        internal DragEventArgs(RoutedEvent<DragEventArgs> routedEvent, IDataObject data, Interactive target, Point targetLocation, KeyModifiers keyModifiers)
             : base(routedEvent)
         {
             Data = data;

src/Avalonia.Base/Input/GotFocusEventArgs.cs

@@ -7,6 +7,11 @@ namespace Avalonia.Input
     /// </summary>
     public class GotFocusEventArgs : RoutedEventArgs
     {
+        internal GotFocusEventArgs()
+        {
+
+        }
+
         /// <summary>
         /// Gets or sets a value indicating how the change in focus occurred.
         /// </summary>

src/Avalonia.Base/Input/KeyEventArgs.cs

@@ -5,6 +5,11 @@ namespace Avalonia.Input
 {
     public class KeyEventArgs : RoutedEventArgs
     {
+        internal KeyEventArgs()
+        {
+
+        }
+
         public IKeyboardDevice? Device { get; set; }
 
         public Key Key { get; set; }

src/Avalonia.Base/Input/PointerDeltaEventArgs.cs

@@ -7,7 +7,7 @@ namespace Avalonia.Input
     {
         public Vector Delta { get; set; }
 
-        public PointerDeltaEventArgs(RoutedEvent routedEvent, IInteractive? source, 
+        internal PointerDeltaEventArgs(RoutedEvent routedEvent, IInteractive? source, 
             IPointer pointer, IVisual rootVisual, Point rootVisualPosition, ulong timestamp,
             PointerPointProperties properties, KeyModifiers modifiers, Vector delta) 
             : base(routedEvent, source, pointer, rootVisual, rootVisualPosition,

src/Avalonia.Base/Input/PointerEventArgs.cs

@@ -13,7 +13,7 @@ namespace Avalonia.Input
         private readonly PointerPointProperties _properties;
         private readonly Lazy<IReadOnlyList<RawPointerPoint>?>? _previousPoints;
 
-        public PointerEventArgs(RoutedEvent routedEvent,
+        internal PointerEventArgs(RoutedEvent routedEvent,
             IInteractive? source,
             IPointer pointer,
             IVisual? rootVisual, Point rootVisualPosition,
@@ -30,8 +30,8 @@ namespace Avalonia.Input
             Timestamp = timestamp;
             KeyModifiers = modifiers;
         }
-        
+
-        public PointerEventArgs(RoutedEvent routedEvent,
+        internal PointerEventArgs(RoutedEvent routedEvent,
             IInteractive? source,
             IPointer pointer,
             IVisual? rootVisual, Point rootVisualPosition,
@@ -124,7 +124,7 @@ namespace Avalonia.Input
 
     public class PointerPressedEventArgs : PointerEventArgs
     {
-        public PointerPressedEventArgs(
+        internal PointerPressedEventArgs(
             IInteractive source,
             IPointer pointer,
             IVisual rootVisual, Point rootVisualPosition,
@@ -143,7 +143,7 @@ namespace Avalonia.Input
 
     public class PointerReleasedEventArgs : PointerEventArgs
     {
-        public PointerReleasedEventArgs(
+        internal PointerReleasedEventArgs(
             IInteractive source, IPointer pointer,
             IVisual rootVisual, Point rootVisualPosition, ulong timestamp,
             PointerPointProperties properties, KeyModifiers modifiers,
@@ -164,7 +164,7 @@ namespace Avalonia.Input
     {
         public IPointer Pointer { get; }
 
-        public PointerCaptureLostEventArgs(IInteractive source, IPointer pointer) : base(InputElement.PointerCaptureLostEvent)
+        internal PointerCaptureLostEventArgs(IInteractive source, IPointer pointer) : base(InputElement.PointerCaptureLostEvent)
         {
             Pointer = pointer;
             Source = source;

src/Avalonia.Base/Input/PointerWheelEventArgs.cs

@@ -7,7 +7,7 @@ namespace Avalonia.Input
     {
         public Vector Delta { get; set; }
 
-        public PointerWheelEventArgs(IInteractive source, IPointer pointer, IVisual rootVisual,
+        internal PointerWheelEventArgs(IInteractive source, IPointer pointer, IVisual rootVisual,
             Point rootVisualPosition, ulong timestamp,
             PointerPointProperties properties, KeyModifiers modifiers, Vector delta) 
             : base(InputElement.PointerWheelChangedEvent, source, pointer, rootVisual, rootVisualPosition,

src/Avalonia.Base/Input/ScrollGestureEventArgs.cs

@@ -9,8 +9,8 @@ namespace Avalonia.Input
         private static int _nextId = 1;
 
         public static int GetNextFreeId() => _nextId++;
-        
+
-        public ScrollGestureEventArgs(int id, Vector delta) : base(Gestures.ScrollGestureEvent)
+        internal ScrollGestureEventArgs(int id, Vector delta) : base(Gestures.ScrollGestureEvent)
         {
             Id = id;
             Delta = delta;
@@ -21,7 +21,7 @@ namespace Avalonia.Input
     {
         public int Id { get; }
 
-        public ScrollGestureEndedEventArgs(int id) : base(Gestures.ScrollGestureEndedEvent)
+        internal ScrollGestureEndedEventArgs(int id) : base(Gestures.ScrollGestureEndedEvent)
         {
             Id = id;
         }

src/Avalonia.Base/Input/TappedEventArgs.cs

@@ -7,7 +7,7 @@ namespace Avalonia.Input
     {
         private readonly PointerEventArgs lastPointerEventArgs;
 
-        public TappedEventArgs(RoutedEvent routedEvent, PointerEventArgs lastPointerEventArgs)
+        internal TappedEventArgs(RoutedEvent routedEvent, PointerEventArgs lastPointerEventArgs)
             : base(routedEvent)
         {
             this.lastPointerEventArgs = lastPointerEventArgs;

src/Avalonia.Base/Input/TextInputEventArgs.cs

@@ -4,6 +4,10 @@ namespace Avalonia.Input
 {
     public class TextInputEventArgs : RoutedEventArgs
     {
+        internal TextInputEventArgs()
+        {
+
+        }
         public IKeyboardDevice? Device { get; set; }
 
         public string? Text { get; set; }

src/Avalonia.Base/Input/VectorEventArgs.cs

@@ -5,6 +5,11 @@ namespace Avalonia.Input
 {
     public class VectorEventArgs : RoutedEventArgs
     {
+        internal VectorEventArgs()
+        {
+
+        }
+
         public Vector Vector { get; set; }
     }
 }

src/Avalonia.Base/Layout/EffectiveViewportChangedEventArgs.cs

@@ -7,7 +7,7 @@ namespace Avalonia.Layout
     /// </summary>
     public class EffectiveViewportChangedEventArgs : EventArgs
     {
-        public EffectiveViewportChangedEventArgs(Rect effectiveViewport)
+        internal EffectiveViewportChangedEventArgs(Rect effectiveViewport)
         {
             EffectiveViewport = effectiveViewport;
         }

src/Avalonia.Base/Media/Imaging/Bitmap.cs

@@ -121,18 +121,28 @@ namespace Avalonia.Media.Imaging
         /// Saves the bitmap to a file.
         /// </summary>
         /// <param name="fileName">The filename.</param>
-        public void Save(string fileName)
+        /// <param name="quality">
+        /// The optional quality for compression. 
+        /// The quality value is interpreted from 0 - 100. If quality is null the default quality 
+        /// setting is applied.
+        /// </param>
+        public void Save(string fileName, int? quality = null)
         {
-            PlatformImpl.Item.Save(fileName);
+            PlatformImpl.Item.Save(fileName, quality);
         }
 
         /// <summary>
         /// Saves the bitmap to a stream.
         /// </summary>
         /// <param name="stream">The stream.</param>
-        public void Save(Stream stream)
+        /// <param name="quality">
+        /// The optional quality for compression. 
+        /// The quality value is interpreted from 0 - 100. If quality is null the default quality 
+        /// setting is applied.
+        /// </param>
+        public void Save(Stream stream, int? quality = null)
         {
-            PlatformImpl.Item.Save(stream);
+            PlatformImpl.Item.Save(stream, quality);
         }
 
         /// <inheritdoc/>

src/Avalonia.Base/Media/Imaging/IBitmap.cs

@@ -35,12 +35,22 @@ namespace Avalonia.Media.Imaging
         /// Saves the bitmap to a file.
         /// </summary>
         /// <param name="fileName">The filename.</param>
-        void Save(string fileName);
+        /// <param name="quality">
+        /// The optional quality for compression if supported by the specific backend. 
+        /// The quality value is interpreted from 0 - 100. If quality is null the default quality 
+        /// setting of the backend is applied.
+        /// </param>
+        void Save(string fileName, int? quality = null);
 
         /// <summary>
         /// Saves the bitmap to a stream in png format.
         /// </summary>
         /// <param name="stream">The stream.</param>
-        void Save(Stream stream);
+        /// <param name="quality">
+        /// The optional quality for compression if supported by the specific backend. 
+        /// The quality value is interpreted from 0 - 100. If quality is null the default quality 
+        /// setting of the backend is applied.
+        /// </param>
+        void Save(Stream stream, int? quality = null);
     }
 }

src/Avalonia.Base/Platform/IBitmapImpl.cs

@@ -29,12 +29,22 @@ namespace Avalonia.Platform
         /// Saves the bitmap to a file.
         /// </summary>
         /// <param name="fileName">The filename.</param>
-        void Save(string fileName);
+        /// <param name="quality">
+        /// The optional quality for compression if supported by the specific backend. 
+        /// The quality value is interpreted from 0 - 100. If quality is null the default quality 
+        /// setting of the backend is applied.
+        /// </param>
+        void Save(string fileName, int? quality = null);
 
         /// <summary>
         /// Saves the bitmap to a stream in png format.
         /// </summary>
         /// <param name="stream">The stream.</param>
-        void Save(Stream stream);
+        /// <param name="quality">
+        /// The optional quality for compression if supported by the specific backend. 
+        /// The quality value is interpreted from 0 - 100. If quality is null the default quality 
+        /// setting of the backend is applied.
+        /// </param>
+        void Save(Stream stream, int? quality = null);
     }
 }

src/Avalonia.Base/Rendering/SceneInvalidatedEventArgs.cs

@@ -12,7 +12,7 @@ namespace Avalonia.Rendering
         /// </summary>
         /// <param name="root">The render root that has been updated.</param>
         /// <param name="dirtyRect">The updated area.</param>
-        public SceneInvalidatedEventArgs(
+        internal SceneInvalidatedEventArgs(
             IRenderRoot root,
             Rect dirtyRect)
         {

src/Avalonia.Controls/Documents/InlineCollection.cs

@@ -89,56 +89,45 @@ namespace Avalonia.Controls.Documents
 
         }
 
+        public override void Add(Inline inline)
+        {
+            if (InlineHost is TextBlock textBlock && !string.IsNullOrEmpty(textBlock._text))
+            {          
+                base.Add(new Run(textBlock._text));
+
+                textBlock._text = null;                
+            }
+
+            base.Add(inline);
+        }
+
         /// <summary>
-        /// Add a text segment to the collection.
+        /// Adds a text segment to the collection.
         /// <remarks>
         /// For non complex content this appends the text to the end of currently held text.
         /// For complex content this adds a <see cref="Run"/> to the collection.
         /// </remarks>
         /// </summary>
-        /// <param name="text"></param>
+        /// <param name="text">The to be added text.</param>
         public void Add(string text)
         {
-            AddText(text);
+            if (InlineHost is TextBlock textBlock && !textBlock.HasComplexContent)
-        }
-
-        public override void Add(Inline inline)
-        {
-            OnAdd();
-
-            base.Add(inline);
-        }
-
-        public void Add(IControl child)
-        {
-            OnAdd();
-
-            base.Add(new InlineUIContainer(child));
-        }
-
-        private void AddText(string text)
-        {
-            if (LogicalChildren is TextBlock textBlock && !textBlock.HasComplexContent)
             {
                 textBlock._text += text;
             }
             else
             {
-                base.Add(new Run(text));
+                Add(new Run(text));
             }
         }
 
-        private void OnAdd()
+        /// <summary>
+        /// Adds a control wrapped inside a <see cref="InlineUIContainer"/> to the collection.
+        /// </summary>
+        /// <param name="control">The to be added control.</param>
+        public void Add(IControl control)
         {
-            if (LogicalChildren is TextBlock textBlock)
+            Add(new InlineUIContainer(control));
-            {
-                if (!textBlock.HasComplexContent && !string.IsNullOrEmpty(textBlock._text))
-                {
-                    base.Add(new Run(textBlock._text));
-
-                    textBlock._text = null;
-                }
-            }
         }
 
         /// <summary>

src/Avalonia.Controls/TextBlock.cs

@@ -597,23 +597,12 @@ namespace Avalonia.Controls
 
         protected virtual void SetText(string? text)
         {
-            if (Inlines != null && Inlines.Count > 0)
+            if (HasComplexContent)
-            {
-                var oldValue = Inlines.Text;
-
-                if (!string.IsNullOrEmpty(text))
-                {
-                    Inlines.Add(text);
-                }
-
-                text = Inlines.Text;
-
-                RaisePropertyChanged(TextProperty, oldValue, text);
-            }
-            else
             {
-                SetAndRaise(TextProperty, ref _text, text);
+                Inlines?.Clear();
             }
+           
+            SetAndRaise(TextProperty, ref _text, text);           
         }
 
         /// <summary>

src/Avalonia.Headless/HeadlessPlatformRenderInterface.cs

@@ -323,12 +323,12 @@ namespace Avalonia.Headless
             public Vector Dpi { get; }
             public PixelSize PixelSize { get; }
             public int Version { get; set; }
-            public void Save(string fileName)
+            public void Save(string fileName, int? quality = null)
             {
 
             }
 
-            public void Save(Stream stream)
+            public void Save(Stream stream, int? quality = null)
             {
 
             }

src/Skia/Avalonia.Skia/Gpu/OpenGl/OpenGlBitmapImpl.cs

@@ -25,9 +25,9 @@ namespace Avalonia.Skia
         public Vector Dpi { get; }
         public PixelSize PixelSize { get; }
         public int Version { get; private set; }
-        public void Save(string fileName) => throw new NotSupportedException();
+        public void Save(string fileName, int? quality = null) => throw new NotSupportedException();
 
-        public void Save(Stream stream) => throw new NotSupportedException();
+        public void Save(Stream stream, int? quality = null) => throw new NotSupportedException();
 
         public void Draw(DrawingContextImpl context, SKRect sourceRect, SKRect destRect, SKPaint paint)
         {

src/Skia/Avalonia.Skia/Helpers/ImageSavingHelper.cs

@@ -14,14 +14,19 @@ namespace Avalonia.Skia.Helpers
         /// </summary>
         /// <param name="image">Image to save</param>
         /// <param name="fileName">Target file.</param>
-        public static void SaveImage(SKImage image, string fileName)
+        /// <param name="quality">
+        /// The optional quality for PNG compression. 
+        /// The quality value is interpreted from 0 - 100. If quality is null 
+        /// the encoder applies the default quality value.
+        /// </param>
+        public static void SaveImage(SKImage image, string fileName, int? quality = null)
         {
             if (image == null) throw new ArgumentNullException(nameof(image));
             if (fileName == null) throw new ArgumentNullException(nameof(fileName));
 
             using (var stream = File.Create(fileName))
             {
-                SaveImage(image, stream);
+                SaveImage(image, stream, quality);
             }
         }
 
@@ -29,16 +34,30 @@ namespace Avalonia.Skia.Helpers
         /// Save Skia image to a stream.
         /// </summary>
         /// <param name="image">Image to save</param>
-        /// <param name="stream">Target stream.</param>
+        /// <param name="quality">
-        public static void SaveImage(SKImage image, Stream stream)
+        /// The optional quality for PNG compression. 
+        /// The quality value is interpreted from 0 - 100. If quality is null 
+        /// the encoder applies the default quality value.
+        /// </param>
+        public static void SaveImage(SKImage image, Stream stream, int? quality = null)
         {
             if (image == null) throw new ArgumentNullException(nameof(image));
             if (stream == null) throw new ArgumentNullException(nameof(stream));
 
-            using (var data = image.Encode())
+            if (quality == null)
             {
-                data.SaveTo(stream);
+                using (var data = image.Encode())
+                {
+                    data.SaveTo(stream);
+                }
+            }
+            else
+            {
+                using (var data = image.Encode(SKEncodedImageFormat.Png, (int)quality))
+                {
+                    data.SaveTo(stream);
+                }
             }
         }
     }
-}
+}

src/Skia/Avalonia.Skia/ImmutableBitmap.cs

@@ -139,13 +139,13 @@ namespace Avalonia.Skia
         }
 
         /// <inheritdoc />
-        public void Save(string fileName)
+        public void Save(string fileName, int? quality = null)
         {
             ImageSavingHelper.SaveImage(_image, fileName);
         }
 
         /// <inheritdoc />
-        public void Save(Stream stream)
+        public void Save(Stream stream, int? quality = null)
         {
             ImageSavingHelper.SaveImage(_image, stream);
         }

src/Skia/Avalonia.Skia/SurfaceRenderTarget.cs

@@ -116,20 +116,20 @@ namespace Avalonia.Skia
         public int Version { get; private set; } = 1;
 
         /// <inheritdoc />
-        public void Save(string fileName)
+        public void Save(string fileName, int? quality = null)
         {
             using (var image = SnapshotImage())
             {
-                ImageSavingHelper.SaveImage(image, fileName);
+                ImageSavingHelper.SaveImage(image, fileName, quality);
             }
         }
 
         /// <inheritdoc />
-        public void Save(Stream stream)
+        public void Save(Stream stream, int? quality = null)
         {
             using (var image = SnapshotImage())
             {
-                ImageSavingHelper.SaveImage(image, stream);
+                ImageSavingHelper.SaveImage(image, stream, quality);
             }
         }
 

src/Skia/Avalonia.Skia/WriteableBitmapImpl.cs

@@ -137,20 +137,20 @@ namespace Avalonia.Skia
         }
 
         /// <inheritdoc />
-        public void Save(Stream stream)
+        public void Save(Stream stream, int? quality = null)
         {
             using (var image = GetSnapshot())
             {
-                ImageSavingHelper.SaveImage(image, stream);
+                ImageSavingHelper.SaveImage(image, stream, quality);
             }
         }
 
         /// <inheritdoc />
-        public void Save(string fileName)
+        public void Save(string fileName, int? quality = null)
         {
             using (var image = GetSnapshot())
             {
-                ImageSavingHelper.SaveImage(image, fileName);
+                ImageSavingHelper.SaveImage(image, fileName, quality);
             }
         }
 

src/Windows/Avalonia.Direct2D1/Media/Imaging/BitmapImpl.cs

@@ -15,7 +15,7 @@ namespace Avalonia.Direct2D1.Media
 
         public abstract OptionalDispose<D2DBitmap> GetDirect2DBitmap(SharpDX.Direct2D1.RenderTarget target);
 
-        public void Save(string fileName)
+        public void Save(string fileName, int? quality = null)
         {
             if (Path.GetExtension(fileName) != ".png")
             {
@@ -25,11 +25,11 @@ namespace Avalonia.Direct2D1.Media
 
             using (FileStream s = new FileStream(fileName, FileMode.Create))
             {
-                Save(s);
+                Save(s, quality);
             }
         }
 
-        public abstract void Save(Stream stream);
+        public abstract void Save(Stream stream, int? quality = null);
 
         public virtual void Dispose()
         {

src/Windows/Avalonia.Direct2D1/Media/Imaging/D2DBitmapImpl.cs

@@ -43,7 +43,7 @@ namespace Avalonia.Direct2D1.Media
             return new OptionalDispose<Bitmap>(_direct2DBitmap, false);
         }
 
-        public override void Save(Stream stream)
+        public override void Save(Stream stream, int? quality = null)
         {
             using (var encoder = new PngBitmapEncoder(Direct2D1Platform.ImagingFactory, stream))
             using (var frame = new BitmapFrameEncode(encoder))

src/Windows/Avalonia.Direct2D1/Media/Imaging/D2DRenderTargetBitmapImpl.cs

@@ -56,7 +56,7 @@ namespace Avalonia.Direct2D1.Media.Imaging
             return new OptionalDispose<D2DBitmap>(_renderTarget.Bitmap, false);
         }
 
-        public override void Save(Stream stream)
+        public override void Save(Stream stream, int? quality = null)
         {
             using (var wic = new WicRenderTargetBitmapImpl(PixelSize, Dpi))
             {

src/Windows/Avalonia.Direct2D1/Media/Imaging/WicBitmapImpl.cs

@@ -186,7 +186,7 @@ namespace Avalonia.Direct2D1.Media
             return new OptionalDispose<D2DBitmap>(D2DBitmap.FromWicBitmap(renderTarget, converter), true);
         }
 
-        public override void Save(Stream stream)
+        public override void Save(Stream stream, int? quality = null)
         {
             using (var encoder = new PngBitmapEncoder(Direct2D1Platform.ImagingFactory, stream))
             using (var frame = new BitmapFrameEncode(encoder))

src/Windows/Avalonia.Win32/Interop/UnmanagedMethods.cs

@@ -2118,6 +2118,12 @@ namespace Avalonia.Win32.Interop
             public int Y;
         }
 
+        public struct SIZE_F
+        {
+            public float X;
+            public float Y;
+        }
+
         public struct RECT
         {
             public int left;

src/Windows/Avalonia.Win32/WinRT/Composition/WinUICompositorConnection.cs

@@ -174,8 +174,9 @@ namespace Avalonia.Win32.WinRT.Composition
             using var sc = _syncContext.EnsureLocked();
             using var desktopTarget = _compositorDesktopInterop.CreateDesktopWindowTarget(hWnd, 0);
             using var target = desktopTarget.QueryInterface<ICompositionTarget>();
+            using var device2 = _device.QueryInterface<ICompositionGraphicsDevice2>();
 
-            using var drawingSurface = _device.CreateDrawingSurface(new UnmanagedMethods.SIZE(), DirectXPixelFormat.B8G8R8A8UIntNormalized,
+            using var drawingSurface = device2.CreateDrawingSurface2(new UnmanagedMethods.SIZE(), DirectXPixelFormat.B8G8R8A8UIntNormalized,
                 DirectXAlphaMode.Premultiplied);
             using var surface = drawingSurface.QueryInterface<ICompositionSurface>();
             using var surfaceInterop = drawingSurface.QueryInterface<ICompositionDrawingSurfaceInterop>();

src/Windows/Avalonia.Win32/WinRT/winrt.idl

@@ -8,6 +8,7 @@
 @clr-map Matrix4x4 System.Numerics.Matrix4x4
 @clr-map RECT Avalonia.Win32.Interop.UnmanagedMethods.RECT
 @clr-map SIZE Avalonia.Win32.Interop.UnmanagedMethods.SIZE
+@clr-map SIZE_F Avalonia.Win32.Interop.UnmanagedMethods.SIZE_F
 @clr-map POINT Avalonia.Win32.Interop.UnmanagedMethods.POINT
 @clr-map HWND IntPtr
 @clr-map BOOL int
@@ -442,12 +443,18 @@ interface IDesktopWindowContentBridgeInterop : IUnknown
 [uuid(FB22C6E1-80A2-4667-9936-DBEAF6EEFE95)]
 interface ICompositionGraphicsDevice : IInspectable
 {
-    HRESULT CreateDrawingSurface([in] SIZE sizePixels, [in] DirectXPixelFormat pixelFormat,
+    HRESULT CreateDrawingSurface([in] SIZE_F sizePixels, [in] DirectXPixelFormat pixelFormat,
         [in] DirectXAlphaMode alphaMode, [out] [retval] ICompositionDrawingSurface** result);
     HRESULT AddRenderingDeviceReplaced(void* handler, void* token);
     HRESULT RemoveRenderingDeviceReplaced([in] int token);
 }
 
+[uuid(0FB8BDF6-C0F0-4BCC-9FB8-084982490D7D)]
+interface ICompositionGraphicsDevice2 : IInspectable
+{
+    HRESULT CreateDrawingSurface2([in] SIZE sizePixels, [in] DirectXPixelFormat pixelFormat, [in] DirectXAlphaMode alphaMode, [out] [retval] ICompositionDrawingSurface** result);
+}
+
 [uuid(1527540D-42C7-47A6-A408-668F79A90DFB)]
 interface ICompositionSurface : IInspectable
 {
@@ -465,7 +472,7 @@ interface ICompositionDrawingSurface : IInspectable
 {
     [propget] HRESULT GetAlphaMode([out] [retval] DirectXAlphaMode* value);
     [propget] HRESULT GetPixelFormat([out] [retval] DirectXPixelFormat* value);
-    [propget] HRESULT GetSize([out] [retval] POINT* value);
+    [propget] HRESULT GetSize([out] [retval] SIZE_F* value);
 }
 
 enum CompositionBitmapInterpolationMode

tests/Avalonia.Controls.UnitTests/TextBlockTests.cs

@@ -3,6 +3,7 @@ using Avalonia.Controls.Documents;
 using Avalonia.Controls.Templates;
 using Avalonia.Data;
 using Avalonia.Media;
+using Avalonia.Metadata;
 using Avalonia.Rendering;
 using Avalonia.UnitTests;
 using Moq;
@@ -181,5 +182,26 @@ namespace Avalonia.Controls.UnitTests
                 Assert.Equal(60, button.Bounds.Left);
             }
         }
+
+        [Fact]
+        public void Setting_Text_Should_Reset_Inlines()
+        {
+            using (UnitTestApplication.Start(TestServices.StyledWindow))
+            {
+                var target = new TextBlock();
+
+                target.Inlines.Add(new Run("Hello World"));
+
+                Assert.Equal("Hello World", target.Text);
+
+                Assert.Equal(1, target.Inlines.Count);
+
+                target.Text = "1234";
+
+                Assert.Equal("1234", target.Text);
+
+                Assert.Equal(0, target.Inlines.Count);
+            }
+        }
     }
 }