improve:橡皮擦

Ink Canvas/MainWindow.xaml.cs

@@ -357,23 +357,21 @@ namespace Ink_Canvas
 
             if (inkCanvas1.EditingMode == InkCanvasEditingMode.Ink) forcePointEraser = !forcePointEraser;
 
-            // 处理高级橡皮擦覆盖层的启用/禁用
-            var eraserOverlay = FindName("AdvancedEraserOverlay") as Border;
+            // 处理橡皮擦覆盖层的启用/禁用
+            var eraserOverlay = FindName("EraserOverlayCanvas") as Canvas;
             if (eraserOverlay != null)
             {
                 if (inkCanvas1.EditingMode == InkCanvasEditingMode.EraseByPoint)
                 {
                     // 橡皮擦模式下启用覆盖层
-                    eraserOverlay.IsHitTestVisible = true;
-                    Trace.WriteLine("Advanced Eraser: Overlay enabled in eraser mode");
+                    EnableEraserOverlay();
+                    Trace.WriteLine("Eraser: Overlay enabled in eraser mode");
                 }
                 else
                 {
                     // 其他模式下禁用覆盖层
-                    eraserOverlay.IsHitTestVisible = false;
-                    // 同时禁用高级橡皮擦系统
-                    DisableAdvancedEraserSystem();
-                    Trace.WriteLine("Advanced Eraser: Overlay disabled in non-eraser mode");
+                    DisableEraserOverlay();
+                    Trace.WriteLine("Eraser: Overlay disabled in non-eraser mode");
                 }
             }
         }