When the control is not effectively visible the matrix could be null

AvaloniaUI · Oct 25, 2022 · d7bbd9d · d7bbd9d
1 parent a083fb5
commit d7bbd9d
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/AvaloniaEdit/Utils/ExtensionMethods.cs b/src/AvaloniaEdit/Utils/ExtensionMethods.cs
@@ -224,6 +224,9 @@ public static Point SnapToDevicePixels(this Point p, IVisual targetVisual)
             // Create a matrix to translate from control coordinates to device coordinates.
             var m = targetVisual.TransformToVisual((Control)root) * Matrix.CreateScale(scaling);
 
+            if (m == null)
+                return p;
+
             // Translate the point to device coordinates.
             var devicePoint = p.Transform(m.Value);