Update SvgImage.cs

wieslawsoltes · Mar 14, 2024 · 001cf40 · 001cf40
1 parent fae8793
commit 001cf40
Showing 1 changed file with 16 additions and 1 deletion.
diff --git a/src/Avalonia.Svg.Skia/SvgImage.cs b/src/Avalonia.Svg.Skia/SvgImage.cs
@@ -1,4 +1,5 @@
-using Avalonia.Media;
+using System;
+using Avalonia.Media;
 using Avalonia.Metadata;
 using Svg.Model;
 
@@ -9,6 +10,11 @@ namespace Avalonia.Svg.Skia;
 /// </summary>
 public class SvgImage : AvaloniaObject, IImage
 {
+    /// <summary>
+    /// Raised when the resource changes visually.
+    /// </summary>
+    public event EventHandler? Invalidated;
+
     /// <summary>
     /// Defines the <see cref="Source"/> property.
     /// </summary>
@@ -99,6 +105,7 @@ protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs chang
         if (change.Property == SourceProperty)
         {
             // TODO: Invalidate IImage
+            RaiseInvalidated(EventArgs.Empty);
         }
 
         if (change.Property == CssProperty)
@@ -108,6 +115,7 @@ protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs chang
             if (Source?.Css != css)
             {
                 Source?.ReLoad(new SvgParameters(null, css));
+                RaiseInvalidated(EventArgs.Empty);
             }
         }
 
@@ -118,7 +126,14 @@ protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs chang
             if (Source?.Css != css)
             {
                 Source?.ReLoad(new SvgParameters(null, css));
+                RaiseInvalidated(EventArgs.Empty);
             }
         }
     }
+
+    /// <summary>
+    /// Raises the <see cref="Invalidated"/> event.
+    /// </summary>
+    /// <param name="e">The event args.</param>
+    protected void RaiseInvalidated(EventArgs e) => Invalidated?.Invoke(this, e);
 }