PrefacedCorg
774 lines
30 KiB
C#
774 lines
30 KiB
C#
using Ink_Canvas.Helpers;
|
||
using System;
|
||
using System.Collections.Generic;
|
||
using System.Drawing;
|
||
using System.Drawing.Drawing2D;
|
||
using System.Drawing.Imaging;
|
||
using System.IO;
|
||
using System.Threading.Tasks;
|
||
using System.Windows;
|
||
using System.Windows.Controls;
|
||
using System.Windows.Forms;
|
||
using System.Windows.Media;
|
||
using System.Windows.Media.Imaging;
|
||
using System.Windows.Threading;
|
||
using Application = System.Windows.Application;
|
||
using Color = System.Drawing.Color;
|
||
using Cursors = System.Windows.Input.Cursors;
|
||
using Image = System.Windows.Controls.Image;
|
||
using PixelFormat = System.Drawing.Imaging.PixelFormat;
|
||
using Point = System.Windows.Point;
|
||
using Size = System.Drawing.Size;
|
||
|
||
namespace Ink_Canvas
|
||
{
|
||
// 截图结果结构体
|
||
public struct ScreenshotResult
|
||
{
|
||
public Rectangle Area;
|
||
public List<Point> Path;
|
||
public Bitmap CameraImage;
|
||
public BitmapSource CameraBitmapSource;
|
||
|
||
public ScreenshotResult(Rectangle area, List<Point> path = null, Bitmap cameraImage = null, BitmapSource cameraBitmapSource = null)
|
||
{
|
||
Area = area;
|
||
Path = path;
|
||
CameraImage = cameraImage;
|
||
CameraBitmapSource = cameraBitmapSource;
|
||
}
|
||
}
|
||
|
||
public partial class MainWindow : Window
|
||
{
|
||
// 截图并插入到画布
|
||
private async Task CaptureScreenshotAndInsert()
|
||
{
|
||
try
|
||
{
|
||
// 隐藏主窗口以避免截图包含窗口本身
|
||
var originalVisibility = Visibility;
|
||
Visibility = Visibility.Hidden;
|
||
|
||
// 等待窗口隐藏
|
||
await Task.Delay(200);
|
||
|
||
// 启动区域选择截图
|
||
var screenshotResult = await ShowScreenshotSelector();
|
||
|
||
// 恢复窗口显示
|
||
Visibility = originalVisibility;
|
||
|
||
if (screenshotResult.HasValue)
|
||
{
|
||
// 检查是否是摄像头截图
|
||
if (screenshotResult.Value.CameraBitmapSource != null)
|
||
{
|
||
// 摄像头截图（使用BitmapSource）
|
||
await InsertBitmapSourceToCanvas(screenshotResult.Value.CameraBitmapSource);
|
||
}
|
||
else if (screenshotResult.Value.CameraImage != null)
|
||
{
|
||
// 摄像头截图（使用Bitmap）
|
||
await InsertScreenshotToCanvas(screenshotResult.Value.CameraImage);
|
||
}
|
||
else if (screenshotResult.Value.Area.Width > 0 && screenshotResult.Value.Area.Height > 0)
|
||
{
|
||
// 屏幕截图
|
||
using (var originalBitmap = CaptureScreenArea(screenshotResult.Value.Area))
|
||
{
|
||
if (originalBitmap != null)
|
||
{
|
||
Bitmap finalBitmap = originalBitmap;
|
||
bool needDisposeFinalBitmap = false;
|
||
|
||
try
|
||
{
|
||
// 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
|
||
}
|
||
|
||
// 将截图转换为WPF Image并插入到画布
|
||
await InsertScreenshotToCanvas(finalBitmap);
|
||
}
|
||
finally
|
||
{
|
||
// 如果创建了新的位图，需要释放它
|
||
if (needDisposeFinalBitmap && finalBitmap != originalBitmap)
|
||
{
|
||
finalBitmap.Dispose();
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
else
|
||
{
|
||
ShowNotification("截图已取消");
|
||
}
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
ShowNotification($"截图失败: {ex.Message}");
|
||
Visibility = Visibility.Visible;
|
||
}
|
||
}
|
||
|
||
// 直接全屏截图并插入到画布
|
||
private async Task CaptureFullScreenAndInsert()
|
||
{
|
||
try
|
||
{
|
||
// 隐藏主窗口以避免截图包含窗口本身
|
||
var originalVisibility = Visibility;
|
||
Visibility = Visibility.Hidden;
|
||
|
||
// 等待窗口隐藏
|
||
await Task.Delay(200);
|
||
|
||
// 获取虚拟屏幕边界
|
||
var virtualScreen = SystemInformation.VirtualScreen;
|
||
var fullScreenArea = new Rectangle(virtualScreen.X, virtualScreen.Y, virtualScreen.Width, virtualScreen.Height);
|
||
|
||
// 截取全屏
|
||
using (var fullScreenBitmap = CaptureScreenArea(fullScreenArea))
|
||
{
|
||
if (fullScreenBitmap != null)
|
||
{
|
||
// 将截图转换为WPF Image并插入到画布
|
||
await InsertScreenshotToCanvas(fullScreenBitmap);
|
||
}
|
||
else
|
||
{
|
||
ShowNotification("全屏截图失败");
|
||
}
|
||
}
|
||
|
||
// 恢复窗口显示
|
||
Visibility = originalVisibility;
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
ShowNotification($"全屏截图失败: {ex.Message}");
|
||
Visibility = Visibility.Visible;
|
||
}
|
||
}
|
||
|
||
// 显示截图区域选择器
|
||
private async Task<ScreenshotResult?> ShowScreenshotSelector()
|
||
{
|
||
ScreenshotResult? result = null;
|
||
|
||
try
|
||
{
|
||
await Application.Current.Dispatcher.InvokeAsync(() =>
|
||
{
|
||
var selectorWindow = new ScreenshotSelectorWindow();
|
||
if (selectorWindow.ShowDialog() == true)
|
||
{
|
||
// 检查是否是摄像头截图
|
||
if (selectorWindow.CameraBitmapSource != null)
|
||
{
|
||
result = new ScreenshotResult(
|
||
Rectangle.Empty, // 摄像头截图不需要区域
|
||
null, // 摄像头截图不需要路径
|
||
null, // 不再使用Bitmap
|
||
selectorWindow.CameraBitmapSource // 摄像头BitmapSource
|
||
);
|
||
}
|
||
else if (selectorWindow.CameraImage != null)
|
||
{
|
||
result = new ScreenshotResult(
|
||
Rectangle.Empty, // 摄像头截图不需要区域
|
||
null, // 摄像头截图不需要路径
|
||
selectorWindow.CameraImage // 摄像头图像
|
||
);
|
||
}
|
||
else
|
||
{
|
||
result = new ScreenshotResult(
|
||
selectorWindow.SelectedArea.Value,
|
||
selectorWindow.SelectedPath
|
||
);
|
||
}
|
||
}
|
||
});
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"显示截图选择器失败: {ex.Message}", LogHelper.LogType.Error);
|
||
}
|
||
|
||
return result;
|
||
}
|
||
|
||
// 截取指定屏幕区域
|
||
private Bitmap CaptureScreenArea(Rectangle area)
|
||
{
|
||
try
|
||
{
|
||
// 确保区域在有效范围内
|
||
var virtualScreen = SystemInformation.VirtualScreen;
|
||
|
||
// 调整区域边界，确保不超出屏幕范围
|
||
int x = Math.Max(area.X, virtualScreen.X);
|
||
int y = Math.Max(area.Y, virtualScreen.Y);
|
||
int right = Math.Min(area.Right, virtualScreen.Right);
|
||
int bottom = Math.Min(area.Bottom, virtualScreen.Bottom);
|
||
|
||
int width = Math.Max(1, right - x);
|
||
int height = Math.Max(1, bottom - y);
|
||
|
||
// 创建支持透明度的位图
|
||
var bitmap = new Bitmap(width, height, PixelFormat.Format32bppArgb);
|
||
using (var graphics = Graphics.FromImage(bitmap))
|
||
{
|
||
// 设置高质量渲染
|
||
graphics.CompositingQuality = CompositingQuality.HighQuality;
|
||
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
|
||
graphics.SmoothingMode = SmoothingMode.HighQuality;
|
||
graphics.CompositingMode = CompositingMode.SourceOver;
|
||
|
||
// 截取屏幕区域
|
||
graphics.CopyFromScreen(x, y, 0, 0, new Size(width, height), CopyPixelOperation.SourceCopy);
|
||
}
|
||
|
||
return bitmap;
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"截取屏幕区域失败: {ex.Message}", LogHelper.LogType.Error);
|
||
return null;
|
||
}
|
||
}
|
||
|
||
// 将截图插入到画布
|
||
private async Task InsertScreenshotToCanvas(Bitmap bitmap)
|
||
{
|
||
try
|
||
{
|
||
// 验证位图有效性
|
||
if (bitmap == null || bitmap.Width <= 0 || bitmap.Height <= 0)
|
||
{
|
||
ShowNotification("无效的截图");
|
||
return;
|
||
}
|
||
|
||
// 将Bitmap转换为WPF BitmapSource
|
||
var bitmapSource = ConvertBitmapToBitmapSource(bitmap);
|
||
|
||
if (bitmapSource == null)
|
||
{
|
||
ShowNotification("转换截图失败");
|
||
return;
|
||
}
|
||
|
||
// 创建WPF Image控件
|
||
var image = new Image
|
||
{
|
||
Source = bitmapSource,
|
||
Stretch = Stretch.Uniform
|
||
};
|
||
RenderOptions.SetBitmapScalingMode(image, BitmapScalingMode.HighQuality);
|
||
|
||
// 生成唯一名称
|
||
string timestamp = "screenshot_" + DateTime.Now.ToString("yyyyMMdd_HH_mm_ss_fff");
|
||
image.Name = timestamp;
|
||
|
||
// 初始化TransformGroup
|
||
InitializeScreenshotTransform(image);
|
||
|
||
// 设置截图属性，避免被InkCanvas选择系统处理
|
||
image.IsHitTestVisible = true;
|
||
image.Focusable = false;
|
||
|
||
// 初始化InkCanvas选择设置
|
||
InitializeInkCanvasSelectionSettings();
|
||
|
||
// 等待图片加载完成后再进行居中处理
|
||
image.Loaded += (sender, e) =>
|
||
{
|
||
// 确保在UI线程中执行
|
||
Dispatcher.BeginInvoke(new Action(() =>
|
||
{
|
||
CenterAndScaleScreenshot(image);
|
||
// 绑定事件处理器
|
||
BindScreenshotEvents(image);
|
||
}), DispatcherPriority.Loaded);
|
||
};
|
||
|
||
// 添加到画布
|
||
inkCanvas.Children.Add(image);
|
||
|
||
// 提交历史记录
|
||
timeMachine.CommitElementInsertHistory(image);
|
||
|
||
// 插入图片后切换到选择模式并刷新浮动栏高光显示
|
||
SetCurrentToolMode(InkCanvasEditingMode.Select);
|
||
UpdateCurrentToolMode("select");
|
||
HideSubPanels("select");
|
||
|
||
ShowNotification("截图已插入到画布");
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
ShowNotification($"插入截图失败: {ex.Message}");
|
||
LogHelper.WriteLogToFile($"插入截图失败: {ex.Message}", LogHelper.LogType.Error);
|
||
}
|
||
finally
|
||
{
|
||
bitmap?.Dispose();
|
||
}
|
||
}
|
||
|
||
// 将BitmapSource插入到画布（用于摄像头截图）
|
||
private async Task InsertBitmapSourceToCanvas(BitmapSource bitmapSource)
|
||
{
|
||
try
|
||
{
|
||
// 创建WPF Image控件
|
||
var image = new Image
|
||
{
|
||
Source = bitmapSource,
|
||
Stretch = Stretch.Uniform
|
||
};
|
||
RenderOptions.SetBitmapScalingMode(image, BitmapScalingMode.HighQuality);
|
||
|
||
// 生成唯一名称
|
||
string timestamp = "camera_" + DateTime.Now.ToString("yyyyMMdd_HH_mm_ss_fff");
|
||
image.Name = timestamp;
|
||
|
||
// 初始化TransformGroup
|
||
InitializeScreenshotTransform(image);
|
||
|
||
// 设置截图属性，避免被InkCanvas选择系统处理
|
||
image.IsHitTestVisible = true;
|
||
image.Focusable = false;
|
||
|
||
// 初始化InkCanvas选择设置
|
||
InitializeInkCanvasSelectionSettings();
|
||
|
||
// 等待图片加载完成后再进行居中处理
|
||
image.Loaded += (sender, e) =>
|
||
{
|
||
// 确保在UI线程中执行
|
||
Dispatcher.BeginInvoke(new Action(() =>
|
||
{
|
||
CenterAndScaleScreenshot(image);
|
||
// 绑定事件处理器
|
||
BindScreenshotEvents(image);
|
||
}), DispatcherPriority.Loaded);
|
||
};
|
||
|
||
// 添加到画布
|
||
inkCanvas.Children.Add(image);
|
||
|
||
// 提交历史记录
|
||
timeMachine.CommitElementInsertHistory(image);
|
||
|
||
// 插入图片后切换到选择模式并刷新浮动栏高光显示
|
||
SetCurrentToolMode(InkCanvasEditingMode.Select);
|
||
UpdateCurrentToolMode("select");
|
||
HideSubPanels("select");
|
||
|
||
ShowNotification("摄像头截图已插入到画布");
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
ShowNotification($"插入摄像头截图失败: {ex.Message}");
|
||
LogHelper.WriteLogToFile($"插入摄像头截图失败: {ex.Message}", LogHelper.LogType.Error);
|
||
}
|
||
}
|
||
|
||
// 初始化截图的TransformGroup
|
||
private void InitializeScreenshotTransform(Image image)
|
||
{
|
||
var transformGroup = new TransformGroup();
|
||
transformGroup.Children.Add(new ScaleTransform(1, 1));
|
||
transformGroup.Children.Add(new TranslateTransform(0, 0));
|
||
transformGroup.Children.Add(new RotateTransform(0));
|
||
image.RenderTransform = transformGroup;
|
||
}
|
||
|
||
// 绑定截图事件处理器
|
||
private void BindScreenshotEvents(Image image)
|
||
{
|
||
// 鼠标事件
|
||
image.MouseLeftButtonDown += Element_MouseLeftButtonDown;
|
||
image.MouseLeftButtonUp += Element_MouseLeftButtonUp;
|
||
image.MouseMove += Element_MouseMove;
|
||
image.MouseWheel += Element_MouseWheel;
|
||
|
||
// 触摸事件
|
||
image.TouchDown += Element_TouchDown;
|
||
image.TouchUp += Element_TouchUp;
|
||
image.IsManipulationEnabled = true;
|
||
image.ManipulationDelta += Element_ManipulationDelta;
|
||
image.ManipulationCompleted += Element_ManipulationCompleted;
|
||
|
||
// 设置光标
|
||
image.Cursor = Cursors.Hand;
|
||
|
||
// 禁用InkCanvas对截图的选择处理
|
||
image.IsHitTestVisible = true;
|
||
image.Focusable = false;
|
||
}
|
||
|
||
// 专门为截图优化的居中缩放方法
|
||
private void CenterAndScaleScreenshot(Image image)
|
||
{
|
||
try
|
||
{
|
||
// 确保图片已加载
|
||
if (image.Source == null || image.ActualWidth == 0 || image.ActualHeight == 0)
|
||
{
|
||
return;
|
||
}
|
||
|
||
// 获取画布的实际尺寸
|
||
double canvasWidth = inkCanvas.ActualWidth;
|
||
double canvasHeight = inkCanvas.ActualHeight;
|
||
|
||
// 如果画布尺寸为0，使用窗口尺寸作为备选
|
||
if (canvasWidth <= 0 || canvasHeight <= 0)
|
||
{
|
||
canvasWidth = ActualWidth;
|
||
canvasHeight = ActualHeight;
|
||
}
|
||
|
||
// 如果仍然为0，使用屏幕尺寸
|
||
if (canvasWidth <= 0 || canvasHeight <= 0)
|
||
{
|
||
canvasWidth = SystemParameters.PrimaryScreenWidth;
|
||
canvasHeight = SystemParameters.PrimaryScreenHeight;
|
||
}
|
||
|
||
// 计算最大允许尺寸（画布的80%）
|
||
double maxWidth = canvasWidth * 0.8;
|
||
double maxHeight = canvasHeight * 0.8;
|
||
|
||
// 获取图片的原始尺寸
|
||
double originalWidth = image.Source.Width;
|
||
double originalHeight = image.Source.Height;
|
||
|
||
// 计算缩放比例
|
||
double scaleX = maxWidth / originalWidth;
|
||
double scaleY = maxHeight / originalHeight;
|
||
double scale = Math.Min(scaleX, scaleY);
|
||
|
||
// 如果图片本身比最大尺寸小，不进行缩放
|
||
if (scale > 1.0)
|
||
{
|
||
scale = 1.0;
|
||
}
|
||
|
||
// 计算新的尺寸
|
||
double newWidth = originalWidth * scale;
|
||
double newHeight = originalHeight * scale;
|
||
|
||
// 设置图片尺寸
|
||
image.Width = newWidth;
|
||
image.Height = newHeight;
|
||
|
||
// 计算居中位置
|
||
double centerX = (canvasWidth - newWidth) / 2;
|
||
double centerY = (canvasHeight - newHeight) / 2;
|
||
|
||
// 确保位置不为负数
|
||
centerX = Math.Max(0, centerX);
|
||
centerY = Math.Max(0, centerY);
|
||
|
||
// 设置位置
|
||
InkCanvas.SetLeft(image, centerX);
|
||
InkCanvas.SetTop(image, centerY);
|
||
|
||
// 这样可以保持滚轮缩放和拖动功能
|
||
if (image.RenderTransform == null || image.RenderTransform == Transform.Identity)
|
||
{
|
||
// 只有在没有TransformGroup时才创建
|
||
InitializeScreenshotTransform(image);
|
||
}
|
||
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"截图居中失败: {ex.Message}", LogHelper.LogType.Error);
|
||
// 如果居中失败，使用默认的居中方法作为备选
|
||
CenterAndScaleElement(image);
|
||
}
|
||
}
|
||
|
||
// 应用形状遮罩到截图
|
||
private Bitmap ApplyShapeMask(Bitmap bitmap, List<Point> path, Rectangle area)
|
||
{
|
||
try
|
||
{
|
||
// 验证路径参数
|
||
if (path == null || path.Count < 3)
|
||
{
|
||
LogHelper.WriteLogToFile("路径点数不足，无法应用形状遮罩", LogHelper.LogType.Warning);
|
||
return bitmap;
|
||
}
|
||
|
||
// 获取DPI缩放比例
|
||
var dpiScale = GetDpiScale();
|
||
var virtualScreen = SystemInformation.VirtualScreen;
|
||
|
||
// 创建结果位图，确保支持透明度
|
||
var resultBitmap = new Bitmap(bitmap.Width, bitmap.Height, PixelFormat.Format32bppArgb);
|
||
|
||
// 首先将整个位图设置为透明
|
||
using (var resultGraphics = Graphics.FromImage(resultBitmap))
|
||
{
|
||
// 清除位图，设置为完全透明
|
||
resultGraphics.Clear(Color.Transparent);
|
||
|
||
// 设置高质量渲染
|
||
resultGraphics.SmoothingMode = SmoothingMode.AntiAlias;
|
||
resultGraphics.CompositingQuality = CompositingQuality.HighQuality;
|
||
resultGraphics.CompositingMode = CompositingMode.SourceOver;
|
||
|
||
// 创建路径
|
||
using (var pathGraphics = new GraphicsPath())
|
||
{
|
||
// 转换WPF坐标到GDI+坐标，考虑DPI缩放和屏幕偏移
|
||
var points = new PointF[path.Count];
|
||
for (int i = 0; i < path.Count; i++)
|
||
{
|
||
// 将WPF坐标转换为实际屏幕坐标，然后相对于截图区域计算偏移
|
||
double screenX = (path[i].X * dpiScale) + virtualScreen.Left;
|
||
double screenY = (path[i].Y * dpiScale) + virtualScreen.Top;
|
||
|
||
// 计算相对于截图区域的坐标
|
||
float relativeX = (float)(screenX - area.X);
|
||
float relativeY = (float)(screenY - area.Y);
|
||
|
||
// 确保坐标在有效范围内
|
||
relativeX = Math.Max(0, Math.Min(relativeX, bitmap.Width - 1));
|
||
relativeY = Math.Max(0, Math.Min(relativeY, bitmap.Height - 1));
|
||
|
||
points[i] = new PointF(relativeX, relativeY);
|
||
}
|
||
|
||
// 添加路径 - 使用FillMode.Winding确保路径正确填充
|
||
pathGraphics.FillMode = FillMode.Winding;
|
||
pathGraphics.AddPolygon(points);
|
||
|
||
// 验证路径是否有效
|
||
if (!pathGraphics.IsVisible(0, 0) && pathGraphics.GetBounds().Width > 0 && pathGraphics.GetBounds().Height > 0)
|
||
{
|
||
// 设置裁剪区域为路径内部
|
||
resultGraphics.SetClip(pathGraphics);
|
||
|
||
// 在裁剪区域内绘制原始图像
|
||
resultGraphics.DrawImage(bitmap, 0, 0);
|
||
|
||
// 重置裁剪区域，确保后续操作不受影响
|
||
resultGraphics.ResetClip();
|
||
}
|
||
else
|
||
{
|
||
LogHelper.WriteLogToFile("生成的路径无效，返回透明图像", LogHelper.LogType.Warning);
|
||
// 如果路径无效，返回透明图像
|
||
return resultBitmap;
|
||
}
|
||
}
|
||
}
|
||
|
||
return resultBitmap;
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"应用形状遮罩失败: {ex.Message}", LogHelper.LogType.Error);
|
||
return bitmap;
|
||
}
|
||
}
|
||
|
||
// 将System.Drawing.Bitmap转换为WPF BitmapSource
|
||
private BitmapSource ConvertBitmapToBitmapSource(Bitmap bitmap)
|
||
{
|
||
try
|
||
{
|
||
// 验证位图有效性
|
||
if (bitmap == null)
|
||
return null;
|
||
|
||
// 验证位图尺寸
|
||
if (bitmap.Width <= 0 || bitmap.Height <= 0)
|
||
return null;
|
||
|
||
// 使用更安全的方法转换位图
|
||
var bitmapData = bitmap.LockBits(
|
||
new Rectangle(0, 0, bitmap.Width, bitmap.Height),
|
||
ImageLockMode.ReadOnly,
|
||
bitmap.PixelFormat);
|
||
|
||
try
|
||
{
|
||
// 根据像素格式选择合适的WPF像素格式
|
||
System.Windows.Media.PixelFormat wpfPixelFormat;
|
||
switch (bitmap.PixelFormat)
|
||
{
|
||
case PixelFormat.Format24bppRgb:
|
||
wpfPixelFormat = PixelFormats.Bgr24;
|
||
break;
|
||
case PixelFormat.Format32bppArgb:
|
||
wpfPixelFormat = PixelFormats.Bgra32;
|
||
break;
|
||
case PixelFormat.Format32bppRgb:
|
||
wpfPixelFormat = PixelFormats.Bgr32;
|
||
break;
|
||
default:
|
||
wpfPixelFormat = PixelFormats.Bgr24;
|
||
break;
|
||
}
|
||
|
||
var bitmapSource = BitmapSource.Create(
|
||
bitmapData.Width,
|
||
bitmapData.Height,
|
||
bitmap.HorizontalResolution,
|
||
bitmap.VerticalResolution,
|
||
wpfPixelFormat,
|
||
null,
|
||
bitmapData.Scan0,
|
||
bitmapData.Stride * bitmapData.Height,
|
||
bitmapData.Stride);
|
||
|
||
bitmapSource.Freeze();
|
||
return bitmapSource;
|
||
}
|
||
finally
|
||
{
|
||
bitmap.UnlockBits(bitmapData);
|
||
}
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"转换位图失败: {ex.Message}", LogHelper.LogType.Error);
|
||
|
||
// 尝试使用备用方法：内存流转换
|
||
try
|
||
{
|
||
return ConvertBitmapToBitmapSourceFallback(bitmap);
|
||
}
|
||
catch (Exception fallbackEx)
|
||
{
|
||
LogHelper.WriteLogToFile($"备用转换方法也失败: {fallbackEx.Message}", LogHelper.LogType.Error);
|
||
|
||
// 最后尝试：使用最简单的转换方法
|
||
try
|
||
{
|
||
return ConvertBitmapToBitmapSourceSimple(bitmap);
|
||
}
|
||
catch (Exception simpleEx)
|
||
{
|
||
LogHelper.WriteLogToFile($"简单转换方法也失败: {simpleEx.Message}", LogHelper.LogType.Error);
|
||
throw;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
// 备用的位图转换方法（使用内存流）
|
||
private BitmapSource ConvertBitmapToBitmapSourceFallback(Bitmap bitmap)
|
||
{
|
||
try
|
||
{
|
||
// 验证位图有效性
|
||
if (bitmap == null || bitmap.Width <= 0 || bitmap.Height <= 0)
|
||
return null;
|
||
|
||
// 创建一个新的位图，确保格式正确
|
||
using (var convertedBitmap = new Bitmap(bitmap.Width, bitmap.Height, PixelFormat.Format24bppRgb))
|
||
{
|
||
using (var graphics = Graphics.FromImage(convertedBitmap))
|
||
{
|
||
graphics.DrawImage(bitmap, 0, 0);
|
||
}
|
||
|
||
using (var memory = new MemoryStream())
|
||
{
|
||
convertedBitmap.Save(memory, ImageFormat.Png);
|
||
memory.Position = 0;
|
||
|
||
var bitmapImage = new BitmapImage();
|
||
bitmapImage.BeginInit();
|
||
bitmapImage.CacheOption = BitmapCacheOption.OnLoad;
|
||
bitmapImage.StreamSource = memory;
|
||
bitmapImage.EndInit();
|
||
bitmapImage.Freeze();
|
||
|
||
return bitmapImage;
|
||
}
|
||
}
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"备用转换方法失败: {ex.Message}", LogHelper.LogType.Error);
|
||
throw;
|
||
}
|
||
}
|
||
|
||
// 最简单的位图转换方法
|
||
private BitmapSource ConvertBitmapToBitmapSourceSimple(Bitmap bitmap)
|
||
{
|
||
try
|
||
{
|
||
if (bitmap == null)
|
||
return null;
|
||
|
||
// 使用最基础的方法：直接保存为PNG然后加载
|
||
var tempFile = Path.GetTempFileName() + ".png";
|
||
|
||
try
|
||
{
|
||
bitmap.Save(tempFile, ImageFormat.Png);
|
||
|
||
var bitmapImage = new BitmapImage();
|
||
bitmapImage.BeginInit();
|
||
bitmapImage.UriSource = new Uri(tempFile);
|
||
bitmapImage.CacheOption = BitmapCacheOption.OnLoad;
|
||
bitmapImage.EndInit();
|
||
bitmapImage.Freeze();
|
||
|
||
return bitmapImage;
|
||
}
|
||
finally
|
||
{
|
||
// 清理临时文件
|
||
try
|
||
{
|
||
if (File.Exists(tempFile))
|
||
{
|
||
File.Delete(tempFile);
|
||
}
|
||
}
|
||
catch (Exception deleteEx)
|
||
{
|
||
LogHelper.WriteLogToFile($"删除临时文件失败: {deleteEx.Message}", LogHelper.LogType.Warning);
|
||
}
|
||
}
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"简单转换方法失败: {ex.Message}", LogHelper.LogType.Error);
|
||
throw;
|
||
}
|
||
}
|
||
|
||
// 获取DPI缩放比例
|
||
private double GetDpiScale()
|
||
{
|
||
var source = PresentationSource.FromVisual(this);
|
||
if (source?.CompositionTarget != null)
|
||
{
|
||
return source.CompositionTarget.TransformToDevice.M11;
|
||
}
|
||
return 1.0; // 默认DPI
|
||
}
|
||
}
|
||
} |