fix:issue #210

Ink Canvas/MainWindow_cs/MW_FloatingBarIcons.cs

@@ -2894,16 +2894,6 @@ namespace Ink_Canvas
                 // 清空触摸点计数器
                 dec.Clear();
 
-                // 重置单指拖动模式状态
-                if (isSingleFingerDragMode)
-                {
-                    isSingleFingerDragMode = false;
-                    if (BtnFingerDragMode != null)
-                    {
-                        BtnFingerDragMode.Content = "单指\n拖动";
-                    }
-                }
-
                 // 重置手掌擦状态
                 if (isPalmEraserActive)
                 {

Ink Canvas/MainWindow_cs/MW_SelectionGestures.cs

@@ -354,7 +354,6 @@ namespace Ink_Canvas
 
         private void BtnSelect_Click(object sender, RoutedEventArgs e)
         {
-            ExitMultiTouchModeIfNeeded();
             forceEraser = true;
             drawingShapeMode = 0;
             inkCanvas.IsManipulationEnabled = false;
@@ -709,7 +708,6 @@ namespace Ink_Canvas
 
         private void LassoSelect_Click(object sender, RoutedEventArgs e)
         {
-            ExitMultiTouchModeIfNeeded();
             forceEraser = false;
             forcePointEraser = false;
             drawingShapeMode = 0;
@@ -720,7 +718,6 @@ namespace Ink_Canvas
 
         private void BtnLassoSelect_Click(object sender, RoutedEventArgs e)
         {
-            ExitMultiTouchModeIfNeeded();
             forceEraser = false;
             forcePointEraser = false;
             drawingShapeMode = 0;