Attempt to optimize

PixiEditor · Sep 29, 2021 · c612fc7 · c612fc7
1 parent 6d26fa1
commit c612fc7
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/PixiEditor/Models/Controllers/BitmapManager.cs b/PixiEditor/Models/Controllers/BitmapManager.cs
@@ -240,12 +240,18 @@ private void HighlightPixels(Coordinates newPosition)
             {
                 ActiveDocument.PreviewLayer = null;
             }
-            else
+            else if (ActiveDocument.PreviewLayer == null)
             {
                 ActiveDocument.GeneratePreviewLayer();
                 ActiveDocument.PreviewLayer.SetPixels(
                     BitmapPixelChanges.FromSingleColoredArray(highlightArea, new SKColor(0, 0, 0, 77)));
             }
+            else
+            {
+                ActiveDocument.PreviewLayer.Clear();
+                ActiveDocument.PreviewLayer.SetPixels(
+                    BitmapPixelChanges.FromSingleColoredArray(highlightArea, new SKColor(0, 0, 0, 77)));
+            }
         }
 
         private bool CanChangeHighlightOffset(IEnumerable<Coordinates> highlightArea)