代码优化

Ink Canvas/MainWindow_cs/MW_FloatingBarIcons.cs

@@ -2872,7 +2872,6 @@ namespace Ink_Canvas
         }
 
         private bool isOpeningOrHidingSettingsPane;
-        private bool wasNoFocusModeBeforeSettings;
 
         private void BtnSettings_Click(object sender, RoutedEventArgs e)
         {

Ink Canvas/MainWindow_cs/MW_PPT.cs

@@ -99,7 +99,6 @@ namespace Ink_Canvas
 
         // 页面切换防抖机制
         private DateTime _lastSlideSwitchTime = DateTime.MinValue;
-        private int _pendingSlideIndex = -1;
         private const int SlideSwitchDebounceMs = 150;
         private bool _isInkClearedByButton = false;
         #endregion
@@ -1226,7 +1225,6 @@ namespace Ink_Canvas
 
                 // 重置页面切换防抖机制
                 _lastSlideSwitchTime = DateTime.MinValue;
-                _pendingSlideIndex = -1;
 
                 LogHelper.WriteLogToFile("PPT状态变量已重置", LogHelper.LogType.Trace);
             }

Ink Canvas/MainWindow_cs/MW_TouchEvents.cs

@@ -24,7 +24,6 @@ namespace Ink_Canvas
         private InkCanvasEditingMode lastInkCanvasEditingMode = InkCanvasEditingMode.Ink;
         private DateTime lastTouchDownTime = DateTime.MinValue;
         private const double MULTI_TOUCH_DELAY_MS = 100;
-        private bool isMultiTouchTimerActive = false;
 
         /// </summary> 
         /// 保存画布上的非笔画元素（如图片、媒体元素等）
@@ -572,12 +571,6 @@ namespace Ink_Canvas
                     inkCanvas.EditingMode = lastInkCanvasEditingMode;
             dec.Remove(e.TouchDevice.Id);
 
-            // 重置多触控点定时器状态
-            if (dec.Count <= 1)
-            {
-                isMultiTouchTimerActive = false;
-            }
-
             if (dec.Count == 0)
             {
                 isSingleFingerDragMode = false;