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improve:PPT墨迹管理

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CJKmkp
2026-02-20 13:23:20 +08:00
parent d032293a0d
commit 8292b2ef25
1 changed files with 36 additions and 15 deletions
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Ink Canvas/MainWindow_cs/MW_PPT.cs
+36 -15
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@@ -96,6 +96,8 @@ namespace Ink_Canvas
// 当前播放页码跟踪
private int _currentSlideShowPosition = 0;
private readonly object _slideSwitchLock = new object();
private bool _isProcessingSlideSwitch = false;
private DispatcherTimer _exitPPTModeAfterDisconnectTimer;
private const int ExitPPTModeAfterDisconnectDelayMs = 1200;
@@ -887,31 +889,46 @@ namespace Ink_Canvas
int currentSlide = wn.View.CurrentShowPosition;
int totalSlides = wn.Presentation.Slides.Count;
if (currentSlide == _currentSlideShowPosition) return;
Application.Current.Dispatcher.Invoke(() =>
lock (_slideSwitchLock)
{
if (currentSlide == _currentSlideShowPosition) return;
if (_isProcessingSlideSwitch) return;
_isProcessingSlideSwitch = true;
int prev = _currentSlideShowPosition;
if (inkCanvas.Strokes.Count > 0 && prev > 0 && prev != currentSlide)
_singlePPTInkManager?.SaveCurrentSlideStrokes(prev, inkCanvas.Strokes);
Application.Current.Dispatcher.Invoke(() =>
{
try
{
if (inkCanvas.Strokes.Count > 0 && prev > 0 && prev != currentSlide)
_singlePPTInkManager?.SaveCurrentSlideStrokes(prev, inkCanvas.Strokes);
ClearStrokes(true);
timeMachine.ClearStrokeHistory();
ClearStrokes(true);
timeMachine.ClearStrokeHistory();
StrokeCollection newStrokes = _singlePPTInkManager?.LoadSlideStrokes(currentSlide);
if (newStrokes != null && newStrokes.Count > 0)
inkCanvas.Strokes.Add(newStrokes);
StrokeCollection newStrokes = _singlePPTInkManager?.LoadSlideStrokes(currentSlide);
if (newStrokes != null && newStrokes.Count > 0)
inkCanvas.Strokes.Add(newStrokes);
_singlePPTInkManager?.LockInkForSlide(currentSlide);
_pptUIManager?.UpdateCurrentSlideNumber(currentSlide, totalSlides);
});
_currentSlideShowPosition = currentSlide;
_singlePPTInkManager?.LockInkForSlide(currentSlide);
_pptUIManager?.UpdateCurrentSlideNumber(currentSlide, totalSlides);
}
finally
{
_currentSlideShowPosition = currentSlide;
_isProcessingSlideSwitch = false;
}
});
}
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"处理幻灯片切换事件失败: {ex}", LogHelper.LogType.Error);
lock (_slideSwitchLock)
{
_isProcessingSlideSwitch = false;
}
}
}
@@ -1280,6 +1297,10 @@ namespace Ink_Canvas
// 重置当前播放页码跟踪
_currentSlideShowPosition = 0;
lock (_slideSwitchLock)
{
_isProcessingSlideSwitch = false;
}
LogHelper.WriteLogToFile("PPT状态变量已重置", LogHelper.LogType.Trace);