add:按钮显示控制

Ink Canvas/MainWindow.xaml

@@ -1227,6 +1227,19 @@
                                                          Toggled="ToggleSwitchShowHideButton_Toggled" />
                                     </ui:SimpleStackPanel>
                                     
+                                    <ui:SimpleStackPanel Orientation="Horizontal" HorizontalAlignment="Left">
+                                        <TextBlock Foreground="#fafafa" Text="橡皮按钮显示" VerticalAlignment="Center"
+                                                   FontSize="14" Margin="0,0,16,0" />
+                                        <ComboBox Name="ComboBoxEraserDisplayOption"
+                                                  FontFamily="Microsoft YaHei UI" SelectedIndex="0"
+                                                  SelectionChanged="ComboBoxEraserDisplayOption_SelectionChanged">
+                                            <ComboBoxItem Content="两个都显示" FontFamily="Microsoft YaHei UI" />
+                                            <ComboBoxItem Content="仅显示面积擦" FontFamily="Microsoft YaHei UI" />
+                                            <ComboBoxItem Content="仅显示线擦" FontFamily="Microsoft YaHei UI" />
+                                            <ComboBoxItem Content="都不显示" FontFamily="Microsoft YaHei UI" />
+                                        </ComboBox>
+                                    </ui:SimpleStackPanel>
+                                    
                                     <Line HorizontalAlignment="Center" X1="0" Y1="0" X2="400" Y2="0"
                                           Stroke="#3f3f46" StrokeThickness="1" Margin="0,4,0,4" />
                                     

Ink Canvas/MainWindow_cs/MW_Settings.cs

@@ -1861,6 +1861,7 @@ namespace Ink_Canvas
             Settings.Appearance.IsShowClearButton = true;
             Settings.Appearance.IsShowWhiteboardButton = true;
             Settings.Appearance.IsShowHideButton = true;
+            Settings.Appearance.EraserDisplayOption = 0; 
 
             Settings.Automation.IsAutoFoldInEasiNote = true;
             Settings.Automation.IsAutoFoldInEasiNoteIgnoreDesktopAnno = true;
@@ -2387,6 +2388,14 @@ namespace Ink_Canvas
             SaveSettingsToFile();
         }
 
+        private void ComboBoxEraserDisplayOption_SelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            if (!isLoaded) return;
+            Settings.Appearance.EraserDisplayOption = ComboBoxEraserDisplayOption.SelectedIndex;
+            UpdateFloatingBarButtonsVisibility();
+            SaveSettingsToFile();
+        }
+
         private void UpdateFloatingBarButtonsVisibility()
         {
             // 根据设置更新浮动栏按钮的可见性
@@ -2415,6 +2424,30 @@ namespace Ink_Canvas
                 // 隐藏按钮
                 if (Fold_Icon != null)
                     Fold_Icon.Visibility = Settings.Appearance.IsShowHideButton ? Visibility.Visible : Visibility.Collapsed;
+                
+                // 橡皮按钮显示控制
+                if (Eraser_Icon != null && EraserByStrokes_Icon != null)
+                {
+                    switch (Settings.Appearance.EraserDisplayOption)
+                    {
+                        case 0: // 两个都显示
+                            Eraser_Icon.Visibility = Visibility.Visible;
+                            EraserByStrokes_Icon.Visibility = Visibility.Visible;
+                            break;
+                        case 1: // 仅显示面积擦
+                            Eraser_Icon.Visibility = Visibility.Visible;
+                            EraserByStrokes_Icon.Visibility = Visibility.Collapsed;
+                            break;
+                        case 2: // 仅显示线擦
+                            Eraser_Icon.Visibility = Visibility.Collapsed;
+                            EraserByStrokes_Icon.Visibility = Visibility.Visible;
+                            break;
+                        case 3: // 都不显示
+                            Eraser_Icon.Visibility = Visibility.Collapsed;
+                            EraserByStrokes_Icon.Visibility = Visibility.Collapsed;
+                            break;
+                    }
+                }
             }
             catch (Exception ex)
             {

Ink Canvas/MainWindow_cs/MW_SettingsToLoad.cs

@@ -313,6 +313,7 @@ namespace Ink_Canvas
                 ToggleSwitchShowClearButton.IsOn = Settings.Appearance.IsShowClearButton;
                 ToggleSwitchShowWhiteboardButton.IsOn = Settings.Appearance.IsShowWhiteboardButton;
                 ToggleSwitchShowHideButton.IsOn = Settings.Appearance.IsShowHideButton;
+                ComboBoxEraserDisplayOption.SelectedIndex = Settings.Appearance.EraserDisplayOption;
                 
                 // 应用浮动栏按钮可见性设置
                 UpdateFloatingBarButtonsVisibility();

Ink Canvas/Resources/Settings.cs

@@ -208,6 +208,9 @@ namespace Ink_Canvas
         public bool IsShowWhiteboardButton { get; set; } = true;
         [JsonProperty("isShowHideButton")]
         public bool IsShowHideButton { get; set; } = true;
+        
+        [JsonProperty("eraserDisplayOption")]
+        public int EraserDisplayOption { get; set; } = 0; 
     }
 
     public class PowerPointSettings