improve:仅PPT模式

优化浮动栏显示

Ink Canvas/Helpers/PPTInkManager.cs

@@ -303,7 +303,6 @@ namespace Ink_Canvas.Helpers
                         if (positionToSave > 0)
                         {
                             File.WriteAllText(Path.Combine(folderPath, "Position"), positionToSave.ToString());
-                            LogHelper.WriteLogToFile($"已保存PPT播放位置: {positionToSave}", LogHelper.LogType.Trace);
                         }
                     }
                     catch (Exception ex)

Ink Canvas/MainWindow.xaml.cs

@@ -3022,7 +3022,6 @@ namespace Ink_Canvas
                     else if (!isInSlideShow && IsVisible)
                     {
                         Hide();
-                        LogHelper.WriteLogToFile("PPT放映结束，隐藏主窗口（仅PPT模式）", LogHelper.LogType.Trace);
                     }
                 }
                 else

Ink Canvas/MainWindow_cs/MW_FloatingBarIcons.cs

@@ -1812,7 +1812,7 @@ namespace Ink_Canvas
             });
         }
 
-        public async void PureViewboxFloatingBarMarginAnimationInPPTMode()
+        public async void PureViewboxFloatingBarMarginAnimationInPPTMode(bool isRetry = false)
         {
             // 新增：在白板模式下不执行浮动栏动画
             if (currentMode == 1)
@@ -1908,6 +1908,25 @@ namespace Ink_Canvas
             {
                 ViewboxFloatingBar.Margin = new Thickness(pos.X, pos.Y, -2000, -200);
             });
+
+            if (Settings.ModeSettings.IsPPTOnlyMode && !isRetry)
+            {
+                await Task.Delay(2000); // 等待动画完成后再检查
+                
+                bool isFloatingBarVisible = false;
+                await Dispatcher.InvokeAsync(() =>
+                {
+                    // 检查浮动栏是否真的显示了
+                    isFloatingBarVisible = ViewboxFloatingBar.Visibility == Visibility.Visible &&
+                                          ViewboxFloatingBar.Margin.Left >= 0 &&
+                                          ViewboxFloatingBar.Margin.Top >= 0;
+                });
+
+                if (!isFloatingBarVisible)
+                {
+                    PureViewboxFloatingBarMarginAnimationInPPTMode(true);
+                }
+            }
         }
 
         internal async void CursorIcon_Click(object sender, RoutedEventArgs e)