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feat: add include-ink toggle for area screenshot selector

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tayasui rainnya!
2026-04-09 12:54:31 +08:00
parent 057fb35d00
commit 8b2bc352a6
4 changed files with 284 additions and 15 deletions
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Ink Canvas/MainWindow_cs/MW_ImageInsert.cs
+164 -9
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@@ -30,15 +30,19 @@ namespace Ink_Canvas
public Bitmap CameraImage;
public BitmapSource CameraBitmapSource;
public bool AddToWhiteboard;
public bool IncludeInk;
public BitmapSource InkOverlayBitmapSource;
public ScreenshotResult(Rectangle area, List<Point> path = null, Bitmap cameraImage = null,
BitmapSource cameraBitmapSource = null, bool addToWhiteboard = false)
BitmapSource cameraBitmapSource = null, bool addToWhiteboard = false, bool includeInk = false, BitmapSource inkOverlayBitmapSource = null)
{
Area = area;
Path = path;
CameraImage = cameraImage;
CameraBitmapSource = cameraBitmapSource;
AddToWhiteboard = addToWhiteboard;
IncludeInk = includeInk;
InkOverlayBitmapSource = inkOverlayBitmapSource;
}
}
@@ -60,6 +64,8 @@ namespace Ink_Canvas
{
try
{
var inkOverlayPreview = CreateInkOverlayPreviewBitmapSource();
// 隐藏主窗口以避免截图包含窗口本身
var originalVisibility = Visibility;
Visibility = Visibility.Hidden;
@@ -68,7 +74,7 @@ namespace Ink_Canvas
await Task.Delay(200);
// 启动区域选择截图
var screenshotResult = await ShowScreenshotSelector();
var screenshotResult = await ShowScreenshotSelector(inkOverlayPreview);
// 恢复窗口显示
Visibility = originalVisibility;
@@ -104,11 +110,33 @@ namespace Ink_Canvas
try
{
if (screenshotResult.Value.IncludeInk && screenshotResult.Value.InkOverlayBitmapSource != null)
{
var withInkBitmap = OverlayInkOnCapturedBitmap(finalBitmap, screenshotResult.Value.Area, screenshotResult.Value.InkOverlayBitmapSource);
if (withInkBitmap != null && withInkBitmap != finalBitmap)
{
if (needDisposeFinalBitmap && finalBitmap != originalBitmap)
{
finalBitmap.Dispose();
}
finalBitmap = withInkBitmap;
needDisposeFinalBitmap = true;
}
}
// 如果有路径信息，应用形状遮罩
if (screenshotResult.Value.Path != null && screenshotResult.Value.Path.Count > 0)
{
finalBitmap = ApplyShapeMask(originalBitmap, screenshotResult.Value.Path, screenshotResult.Value.Area);
needDisposeFinalBitmap = true; // 标记需要释放新创建的位图
var maskedBitmap = ApplyShapeMask(finalBitmap, screenshotResult.Value.Path, screenshotResult.Value.Area);
if (maskedBitmap != null && maskedBitmap != finalBitmap)
{
if (needDisposeFinalBitmap && finalBitmap != originalBitmap)
{
finalBitmap.Dispose();
}
finalBitmap = maskedBitmap;
needDisposeFinalBitmap = true; // 标记需要释放新创建的位图
}
}
// 将截图转换为WPF Image并插入到画布
@@ -199,7 +227,7 @@ namespace Ink_Canvas
/// 2. 获取用户选择的区域或摄像头截图
/// 3. 返回截图结果
/// </remarks>
private async Task<ScreenshotResult?> ShowScreenshotSelector()
private async Task<ScreenshotResult?> ShowScreenshotSelector(BitmapSource inkOverlayPreview = null)
{
ScreenshotResult? result = null;
@@ -207,7 +235,7 @@ namespace Ink_Canvas
{
await Application.Current.Dispatcher.InvokeAsync(() =>
{
var selectorWindow = new ScreenshotSelectorWindow();
var selectorWindow = new ScreenshotSelectorWindow(inkOverlayPreview);
if (selectorWindow.ShowDialog() == true)
{
// 检查是否是摄像头截图
@@ -218,7 +246,9 @@ namespace Ink_Canvas
null, // 摄像头截图不需要路径
null, // 不再使用Bitmap
selectorWindow.CameraBitmapSource, // 摄像头BitmapSource
selectorWindow.ShouldAddToWhiteboard
selectorWindow.ShouldAddToWhiteboard,
false,
null
);
}
else if (selectorWindow.CameraImage != null)
@@ -228,7 +258,9 @@ namespace Ink_Canvas
null, // 摄像头截图不需要路径
selectorWindow.CameraImage, // 摄像头图像
null,
selectorWindow.ShouldAddToWhiteboard
selectorWindow.ShouldAddToWhiteboard,
false,
null
);
}
else
@@ -238,7 +270,9 @@ namespace Ink_Canvas
selectorWindow.SelectedPath,
null,
null,
selectorWindow.ShouldAddToWhiteboard
selectorWindow.ShouldAddToWhiteboard,
selectorWindow.IncludeInkInScreenshot,
selectorWindow.IncludeInkInScreenshot ? inkOverlayPreview : null
);
}
}
@@ -304,6 +338,127 @@ namespace Ink_Canvas
}
}
private BitmapSource CreateInkOverlayPreviewBitmapSource()
{
try
{
if (inkCanvas == null || inkCanvas.Strokes == null || inkCanvas.Strokes.Count == 0)
{
return null;
}
if (inkCanvas.ActualWidth <= 0 || inkCanvas.ActualHeight <= 0)
{
return null;
}
var virtualScreen = SystemInformation.VirtualScreen;
var dpiScale = GetDpiScale();
var virtualLeftDip = virtualScreen.Left / dpiScale;
var virtualTopDip = virtualScreen.Top / dpiScale;
var inkTopLeftInWindow = inkCanvas.TranslatePoint(new Point(0, 0), this);
var inkRectDip = new Rect(
(Left + inkTopLeftInWindow.X) - virtualLeftDip,
(Top + inkTopLeftInWindow.Y) - virtualTopDip,
inkCanvas.ActualWidth,
inkCanvas.ActualHeight);
var drawingVisual = new DrawingVisual();
using (var dc = drawingVisual.RenderOpen())
{
var visualBrush = new VisualBrush(inkCanvas)
{
Stretch = Stretch.Fill
};
dc.DrawRectangle(visualBrush, null, inkRectDip);
}
var rtb = new RenderTargetBitmap(
Math.Max(1, virtualScreen.Width),
Math.Max(1, virtualScreen.Height),
96,
96,
PixelFormats.Pbgra32);
rtb.Render(drawingVisual);
rtb.Freeze();
return rtb;
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"创建截图墨迹预览失败: {ex.Message}", LogHelper.LogType.Warning);
return null;
}
}
private Bitmap OverlayInkOnCapturedBitmap(Bitmap capturedBitmap, Rectangle captureArea, BitmapSource inkOverlayBitmapSource)
{
if (capturedBitmap == null || inkOverlayBitmapSource == null)
{
return capturedBitmap;
}
try
{
var virtualScreen = SystemInformation.VirtualScreen;
var sourceRect = new Rectangle(
captureArea.X - virtualScreen.X,
captureArea.Y - virtualScreen.Y,
captureArea.Width,
captureArea.Height);
sourceRect.Intersect(new Rectangle(0, 0, inkOverlayBitmapSource.PixelWidth, inkOverlayBitmapSource.PixelHeight));
if (sourceRect.Width <= 0 || sourceRect.Height <= 0)
{
return capturedBitmap;
}
using (var inkOverlayBitmap = ConvertBitmapSourceToBitmap(inkOverlayBitmapSource))
{
if (inkOverlayBitmap == null)
{
return capturedBitmap;
}
var resultBitmap = new Bitmap(capturedBitmap.Width, capturedBitmap.Height, PixelFormat.Format32bppArgb);
using (var g = Graphics.FromImage(resultBitmap))
{
g.DrawImage(capturedBitmap, 0, 0, capturedBitmap.Width, capturedBitmap.Height);
var targetRect = new Rectangle(0, 0, Math.Min(sourceRect.Width, capturedBitmap.Width), Math.Min(sourceRect.Height, capturedBitmap.Height));
g.DrawImage(inkOverlayBitmap, targetRect, sourceRect, GraphicsUnit.Pixel);
}
return resultBitmap;
}
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"叠加截图墨迹失败: {ex.Message}", LogHelper.LogType.Warning);
return capturedBitmap;
}
}
private Bitmap ConvertBitmapSourceToBitmap(BitmapSource bitmapSource)
{
if (bitmapSource == null)
{
return null;
}
using (var memoryStream = new MemoryStream())
{
var encoder = new PngBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create(bitmapSource));
encoder.Save(memoryStream);
memoryStream.Position = 0;
using (var tempBitmap = new Bitmap(memoryStream))
{
return new Bitmap(tempBitmap);
}
}
}
/// <summary>
/// 将截图插入到画布
/// </summary>