Revert "improve:手掌擦"

This reverts commit eb0cf27218.

Ink Canvas/MainWindow.xaml

@@ -851,15 +851,6 @@
                                     </ui:SimpleStackPanel>
                                     <TextBlock Text="# 允许选中墨迹后对墨迹进行双指或多指缩放操作（此设置不受“允许双指旋转”设置的影响）" TextWrapping="Wrap"
                                                Foreground="#a1a1aa" />
-                                    <Line HorizontalAlignment="Center" X1="0" Y1="0" X2="400" Y2="0" Stroke="#3f3f46"
-                                          StrokeThickness="1" Margin="0,4,0,4" />
-                                    <ui:SimpleStackPanel Orientation="Horizontal" HorizontalAlignment="Left">
-                                        <TextBlock Foreground="#fafafa" Text="启用手掌擦" VerticalAlignment="Center" FontSize="14" Margin="0,0,16,0" />
-                                        <ui:ToggleSwitch OnContent="" OffContent="" Name="ToggleSwitchEnablePalmEraser" IsOn="True"
-                                                         FontFamily="Microsoft YaHei UI" FontWeight="Bold"
-                                                         Toggled="ToggleSwitchEnablePalmEraser_Toggled" />
-                                    </ui:SimpleStackPanel>
-                                    <TextBlock Text="# 关闭后，手掌将无法触发橡皮擦功能" TextWrapping="Wrap" Foreground="#a1a1aa" />
                                 </ui:SimpleStackPanel>
                             </GroupBox>
                             <GroupBox Name="GroupBoxInkRecognition">

Ink Canvas/MainWindow.xaml.cs

@@ -265,25 +265,10 @@ namespace Ink_Canvas {
             catch { }
         }
 
-        // 新增：记录上一个模式
-        private InkCanvasEditingMode lastEditingMode = InkCanvasEditingMode.Ink;
-
         private void inkCanvas_EditingModeChanged(object sender, RoutedEventArgs e) {
             var inkCanvas1 = sender as InkCanvas;
             if (inkCanvas1 == null) return;
 
-            // 只负责显示/隐藏覆盖层，不再强制切换模式
-            var eraserOverlay = this.FindName("AdvancedEraserOverlay") as Border;
-            if (eraserOverlay != null) {
-                if (inkCanvas1.EditingMode == InkCanvasEditingMode.EraseByPoint) {
-                    eraserOverlay.IsHitTestVisible = true;
-                    Trace.WriteLine("Advanced Eraser: Overlay enabled in eraser mode");
-                } else {
-                    eraserOverlay.IsHitTestVisible = false;
-                    DisableAdvancedEraserSystem();
-                    Trace.WriteLine("Advanced Eraser: Overlay disabled in non-eraser mode");
-                }
-            }
             // 使用辅助方法设置光标
             SetCursorBasedOnEditingMode(inkCanvas1);
             if (Settings.Canvas.IsShowCursor) {
@@ -294,13 +279,31 @@ namespace Ink_Canvas {
                 else
                     inkCanvas1.ForceCursor = false;
             } else {
+                // 套索选择模式下始终强制显示光标，即使用户设置不显示光标
                 if (inkCanvas1.EditingMode == InkCanvasEditingMode.Select) {
                     inkCanvas1.ForceCursor = true;
                 } else {
                     inkCanvas1.ForceCursor = false;
                 }
             }
+
             if (inkCanvas1.EditingMode == InkCanvasEditingMode.Ink) forcePointEraser = !forcePointEraser;
+            
+            // 处理高级橡皮擦覆盖层的启用/禁用
+            var eraserOverlay = this.FindName("AdvancedEraserOverlay") as Border;
+            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");
+                } 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");
+                }
+            }
         }
 
         #endregion Ink Canvas
@@ -311,16 +314,11 @@ namespace Ink_Canvas {
         public static string settingsFileName = "Settings.json";
         private bool isLoaded = false;
         private bool forcePointEraser = false;
-        public static bool EnablePalmEraser = true;
 
         private void Window_Loaded(object sender, RoutedEventArgs e) {
             loadPenCanvas();
             //加载设置
             LoadSettings(true);
-            // 同步手掌擦开关
-            EnablePalmEraser = Settings.Canvas.EnablePalmEraser;
-            if (ToggleSwitchEnablePalmEraser != null)
-                ToggleSwitchEnablePalmEraser.IsOn = EnablePalmEraser;
             
             // 加载自定义背景颜色
             LoadCustomBackgroundColor();
@@ -400,14 +398,6 @@ namespace Ink_Canvas {
 
             // 初始化插件系统
             InitializePluginSystem();
-
-            // 新增：确保EditingModeChanged事件已绑定
-            var inkCanvas = this.FindName("inkCanvas") as InkCanvas;
-            if (inkCanvas != null)
-            {
-                inkCanvas.EditingModeChanged -= inkCanvas_EditingModeChanged;
-                inkCanvas.EditingModeChanged += inkCanvas_EditingModeChanged;
-            }
         }
 
         private void SystemEventsOnDisplaySettingsChanged(object sender, EventArgs e) {
@@ -1351,13 +1341,5 @@ namespace Ink_Canvas {
             BorderSettings.Visibility = Visibility.Visible;
             BorderSettingsMask.Visibility = Visibility.Visible;
         }
-
-        private void ToggleSwitchEnablePalmEraser_Toggled(object sender, RoutedEventArgs e)
-        {
-            if (!isLoaded) return;
-            EnablePalmEraser = ToggleSwitchEnablePalmEraser.IsOn;
-            Settings.Canvas.EnablePalmEraser = EnablePalmEraser;
-            SaveSettingsToFile();
-        }
     }
 }

Ink Canvas/MainWindow_cs/MW_Eraser.cs

@@ -634,68 +634,52 @@ namespace Ink_Canvas {
                 
                 // 绑定事件处理
                 overlay.MouseDown += (sender, e) => {
-                    if (!MainWindow.EnablePalmEraser) return;
-                    var inkCanvas = this.FindName("inkCanvas") as InkCanvas;
                     if (inkCanvas.EditingMode == InkCanvasEditingMode.EraseByPoint) {
-                        lastEditingMode = inkCanvas.EditingMode;
                         overlay.CaptureMouse();
-                        inkCanvas.EditingMode = InkCanvasEditingMode.None;
                         StartAdvancedEraserOperation(sender);
                     }
                 };
                 
                 overlay.MouseUp += (sender, e) => {
-                    if (!MainWindow.EnablePalmEraser) return;
+                    if (inkCanvas.EditingMode == InkCanvasEditingMode.EraseByPoint) {
-                    var inkCanvas = this.FindName("inkCanvas") as InkCanvas;
-                    if (inkCanvas.EditingMode == InkCanvasEditingMode.None) {
                         overlay.ReleaseMouseCapture();
                         EndAdvancedEraserOperation(sender);
-                        inkCanvas.EditingMode = InkCanvasEditingMode.Ink; // 抬手后自动回到画笔
                     }
                 };
                 
                 overlay.MouseMove += (sender, e) => {
-                    if (!MainWindow.EnablePalmEraser) return;
+                    if (inkCanvas.EditingMode == InkCanvasEditingMode.EraseByPoint) {
-                    var inkCanvas = this.FindName("inkCanvas") as InkCanvas;
-                    if (inkCanvas.EditingMode == InkCanvasEditingMode.None) {
                         var position = e.GetPosition((UIElement)this.FindName("inkCanvas"));
                         Trace.WriteLine($"Advanced Eraser: Mouse move event triggered at ({position.X:F1}, {position.Y:F1})");
                         UpdateAdvancedEraserPosition(sender, position);
+                    } else {
+                        Trace.WriteLine($"Advanced Eraser: Mouse move ignored - not in eraser mode, current mode: {inkCanvas.EditingMode}");
                     }
                 };
                 
                 // 触控笔事件
                 overlay.StylusDown += (sender, e) => {
-                    if (!MainWindow.EnablePalmEraser) return;
-                    var inkCanvas = this.FindName("inkCanvas") as InkCanvas;
                     if (inkCanvas.EditingMode == InkCanvasEditingMode.EraseByPoint) {
                         e.Handled = true;
                         if (e.StylusDevice.TabletDevice.Type == TabletDeviceType.Stylus) {
                             overlay.CaptureStylus();
                         }
-                        lastEditingMode = inkCanvas.EditingMode;
-                        inkCanvas.EditingMode = InkCanvasEditingMode.None;
                         StartAdvancedEraserOperation(sender);
                     }
                 };
                 
                 overlay.StylusUp += (sender, e) => {
-                    if (!MainWindow.EnablePalmEraser) return;
+                    if (inkCanvas.EditingMode == InkCanvasEditingMode.EraseByPoint) {
-                    var inkCanvas = this.FindName("inkCanvas") as InkCanvas;
-                    if (inkCanvas.EditingMode == InkCanvasEditingMode.None) {
                         e.Handled = true;
                         if (e.StylusDevice.TabletDevice.Type == TabletDeviceType.Stylus) {
                             overlay.ReleaseStylusCapture();
                         }
                         EndAdvancedEraserOperation(sender);
-                        inkCanvas.EditingMode = InkCanvasEditingMode.Ink; // 抬手后自动回到画笔
                     }
                 };
                 
                 overlay.StylusMove += (sender, e) => {
-                    if (!MainWindow.EnablePalmEraser) return;
+                    if (inkCanvas.EditingMode == InkCanvasEditingMode.EraseByPoint) {
-                    var inkCanvas = this.FindName("inkCanvas") as InkCanvas;
-                    if (inkCanvas.EditingMode == InkCanvasEditingMode.None) {
                         e.Handled = true;
                         var position = e.GetPosition((UIElement)this.FindName("inkCanvas"));
                         UpdateAdvancedEraserPosition(sender, position);

Ink Canvas/Resources/Settings.cs

@@ -77,8 +77,6 @@ namespace Ink_Canvas
         public OptionalOperation HyperbolaAsymptoteOption { get; set; } = OptionalOperation.Ask;
         [JsonProperty("isCompressPicturesUploaded")]
         public bool IsCompressPicturesUploaded { get; set; } = false;
-        [JsonProperty("enablePalmEraser")]
-        public bool EnablePalmEraser { get; set; } = true;
     }
 
     public enum OptionalOperation