432 lines
17 KiB
C#
432 lines
17 KiB
C#
using Ink_Canvas.Helpers;
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using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Drawing.Imaging;
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using System.IO;
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using System.Threading.Tasks;
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using System.Windows;
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using System.Windows.Forms;
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using System.Windows.Media.Imaging;
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using Application = System.Windows.Application;
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using Clipboard = System.Windows.Clipboard;
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using Size = System.Drawing.Size;
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namespace Ink_Canvas
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{
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// 截图结果结构体
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public struct ScreenshotResult
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{
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public System.Drawing.Rectangle Area;
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public List<System.Windows.Point> Path;
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public ScreenshotResult(System.Drawing.Rectangle area, List<System.Windows.Point> path = null)
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{
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Area = area;
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Path = path;
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}
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}
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public partial class MainWindow : Window
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{
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private void SaveScreenShot(bool isHideNotification, string fileName = null)
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{
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var savePath = Settings.Automation.IsSaveScreenshotsInDateFolders
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? GetDateFolderPath(fileName)
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: GetDefaultFolderPath();
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CaptureAndSaveScreenshot(savePath, isHideNotification);
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if (Settings.Automation.IsAutoSaveStrokesAtScreenshot)
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SaveInkCanvasStrokes(false);
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}
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private void SaveScreenShotToDesktop()
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{
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var desktopPath = Path.Combine(
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Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory),
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$"{DateTime.Now:yyyy-MM-dd_HH-mm-ss}.png");
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CaptureAndSaveScreenshot(desktopPath, false);
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if (Settings.Automation.IsAutoSaveStrokesAtScreenshot)
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SaveInkCanvasStrokes(false);
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}
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// 提取公共的截图和保存逻辑
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private void CaptureAndSaveScreenshot(string savePath, bool isHideNotification)
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{
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var rc = SystemInformation.VirtualScreen;
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using (var bitmap = new Bitmap(rc.Width, rc.Height, PixelFormat.Format32bppArgb))
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using (var memoryGraphics = Graphics.FromImage(bitmap))
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{
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// 设置高质量渲染
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memoryGraphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
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memoryGraphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
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memoryGraphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
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memoryGraphics.CompositingMode = System.Drawing.Drawing2D.CompositingMode.SourceOver;
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memoryGraphics.CopyFromScreen(rc.X, rc.Y, 0, 0, rc.Size, CopyPixelOperation.SourceCopy);
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// 确保目录存在
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var directory = Path.GetDirectoryName(savePath);
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if (!Directory.Exists(directory))
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{
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Directory.CreateDirectory(directory);
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}
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// 使用PNG格式保存，确保透明度信息不丢失
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bitmap.Save(savePath, ImageFormat.Png);
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}
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if (!isHideNotification)
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{
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ShowNotification($"截图成功保存至 {savePath}");
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}
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}
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// 获取日期文件夹路径
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private string GetDateFolderPath(string fileName)
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{
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if (string.IsNullOrWhiteSpace(fileName))
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{
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fileName = DateTime.Now.ToString("HH-mm-ss");
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}
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var basePath = Settings.Automation.AutoSavedStrokesLocation;
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var dateFolder = DateTime.Now.ToString("yyyyMMdd");
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return Path.Combine(
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basePath,
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"Auto Saved - Screenshots",
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dateFolder,
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$"{fileName}.png");
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}
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// 获取默认文件夹路径
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private string GetDefaultFolderPath()
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{
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var basePath = Settings.Automation.AutoSavedStrokesLocation;
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var screenshotsFolder = Path.Combine(basePath, "Auto Saved - Screenshots");
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if (!Directory.Exists(screenshotsFolder))
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{
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Directory.CreateDirectory(screenshotsFolder);
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}
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return Path.Combine(
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screenshotsFolder,
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$"{DateTime.Now:yyyy-MM-dd_HH-mm-ss}.png");
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}
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// 截图并复制到剪贴板
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private async Task CaptureScreenshotToClipboard()
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{
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try
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{
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// 隐藏主窗口以避免截图包含窗口本身
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var originalVisibility = this.Visibility;
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this.Visibility = Visibility.Hidden;
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// 等待窗口隐藏
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await Task.Delay(200);
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// 启动区域选择截图
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var screenshotResult = await ShowScreenshotSelector();
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// 恢复窗口显示
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this.Visibility = originalVisibility;
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if (screenshotResult.HasValue && screenshotResult.Value.Area.Width > 0 && screenshotResult.Value.Area.Height > 0)
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{
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// 截取选定区域
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using (var originalBitmap = CaptureScreenArea(screenshotResult.Value.Area))
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{
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if (originalBitmap != null)
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{
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Bitmap finalBitmap = originalBitmap;
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bool needDisposeFinalBitmap = false;
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try
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{
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// 如果有路径信息，应用形状遮罩
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if (screenshotResult.Value.Path != null && screenshotResult.Value.Path.Count > 0)
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{
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finalBitmap = ApplyShapeMask(originalBitmap, screenshotResult.Value.Path, screenshotResult.Value.Area);
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needDisposeFinalBitmap = true; // 标记需要释放新创建的位图
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}
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// 将截图复制到剪贴板
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CopyBitmapToClipboard(finalBitmap);
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// 等待窗口完全显示后自动粘贴
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await Task.Delay(100);
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await AutoPasteScreenshot();
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}
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finally
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{
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// 如果创建了新的位图，需要释放它
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if (needDisposeFinalBitmap && finalBitmap != originalBitmap)
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{
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finalBitmap.Dispose();
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}
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}
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}
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}
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}
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else
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{
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ShowNotification("截图已取消");
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}
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}
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catch (Exception ex)
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{
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ShowNotification($"截图失败: {ex.Message}");
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this.Visibility = Visibility.Visible;
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}
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}
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// 显示截图区域选择器
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private async Task<ScreenshotResult?> ShowScreenshotSelector()
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{
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ScreenshotResult? result = null;
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try
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{
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await Application.Current.Dispatcher.InvokeAsync(() =>
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{
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var selectorWindow = new ScreenshotSelectorWindow();
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if (selectorWindow.ShowDialog() == true)
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{
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result = new ScreenshotResult(
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selectorWindow.SelectedArea.Value,
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selectorWindow.SelectedPath
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);
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}
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});
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}
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catch (Exception ex)
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{
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LogHelper.WriteLogToFile($"显示截图选择器失败: {ex.Message}", LogHelper.LogType.Error);
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}
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return result;
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}
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// 截取指定屏幕区域
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private Bitmap CaptureScreenArea(System.Drawing.Rectangle area)
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{
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try
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{
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// 确保区域在有效范围内
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var virtualScreen = SystemInformation.VirtualScreen;
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// 调整区域边界，确保不超出屏幕范围
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int x = Math.Max(area.X, virtualScreen.X);
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int y = Math.Max(area.Y, virtualScreen.Y);
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int right = Math.Min(area.Right, virtualScreen.Right);
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int bottom = Math.Min(area.Bottom, virtualScreen.Bottom);
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int width = Math.Max(1, right - x);
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int height = Math.Max(1, bottom - y);
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// 创建支持透明度的位图
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var bitmap = new Bitmap(width, height, PixelFormat.Format32bppArgb);
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using (var graphics = Graphics.FromImage(bitmap))
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{
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// 设置高质量渲染
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graphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
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graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
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graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
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graphics.CompositingMode = System.Drawing.Drawing2D.CompositingMode.SourceOver;
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// 截取屏幕区域
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graphics.CopyFromScreen(x, y, 0, 0, new Size(width, height), CopyPixelOperation.SourceCopy);
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}
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LogHelper.WriteLogToFile($"成功截取区域: X={x}, Y={y}, Width={width}, Height={height}", LogHelper.LogType.Info);
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return bitmap;
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}
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catch (Exception ex)
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{
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LogHelper.WriteLogToFile($"截取屏幕区域失败: {ex.Message}", LogHelper.LogType.Error);
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return null;
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}
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}
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// 自动粘贴截图到画布
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private async Task AutoPasteScreenshot()
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{
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try
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{
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// 只在白板模式下自动粘贴
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if (currentMode == 1)
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{
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await PasteImageFromClipboard();
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ShowNotification("截图已自动插入到画布");
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}
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else
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{
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ShowNotification("截图已复制到剪贴板，可在白板模式下粘贴");
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}
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}
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catch (Exception ex)
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{
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ShowNotification($"自动粘贴截图失败: {ex.Message}");
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LogHelper.WriteLogToFile($"自动粘贴截图失败: {ex.Message}", LogHelper.LogType.Error);
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}
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}
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// 将Bitmap复制到剪贴板
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private void CopyBitmapToClipboard(Bitmap bitmap)
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{
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try
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{
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// 将System.Drawing.Bitmap转换为WPF BitmapSource
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var bitmapSource = ConvertBitmapToBitmapSource(bitmap);
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// 复制到剪贴板
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Clipboard.SetImage(bitmapSource);
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}
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catch (Exception ex)
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{
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ShowNotification($"复制到剪贴板失败: {ex.Message}");
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}
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}
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// 应用形状遮罩到截图
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private Bitmap ApplyShapeMask(Bitmap bitmap, List<System.Windows.Point> path, System.Drawing.Rectangle area)
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{
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try
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{
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// 验证路径参数
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if (path == null || path.Count < 3)
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{
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LogHelper.WriteLogToFile("路径点数不足，无法应用形状遮罩", LogHelper.LogType.Warning);
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return bitmap;
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}
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// 获取DPI缩放比例
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var dpiScale = GetDpiScale();
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var virtualScreen = SystemInformation.VirtualScreen;
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// 创建结果位图，确保支持透明度
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var resultBitmap = new Bitmap(bitmap.Width, bitmap.Height, PixelFormat.Format32bppArgb);
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// 首先将整个位图设置为透明
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using (var resultGraphics = Graphics.FromImage(resultBitmap))
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{
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// 清除位图，设置为完全透明
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resultGraphics.Clear(System.Drawing.Color.Transparent);
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// 设置高质量渲染
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resultGraphics.SmoothingMode = SmoothingMode.AntiAlias;
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resultGraphics.CompositingQuality = CompositingQuality.HighQuality;
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resultGraphics.CompositingMode = CompositingMode.SourceOver;
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// 创建路径
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using (var pathGraphics = new GraphicsPath())
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{
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// 转换WPF坐标到GDI+坐标，考虑DPI缩放和屏幕偏移
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var points = new PointF[path.Count];
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for (int i = 0; i < path.Count; i++)
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{
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// 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
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double screenX = (path[i].X * dpiScale) + virtualScreen.Left;
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double screenY = (path[i].Y * dpiScale) + virtualScreen.Top;
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// 计算相对于截图区域的坐标
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float relativeX = (float)(screenX - area.X);
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float relativeY = (float)(screenY - area.Y);
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// 确保坐标在有效范围内
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relativeX = Math.Max(0, Math.Min(relativeX, bitmap.Width - 1));
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relativeY = Math.Max(0, Math.Min(relativeY, bitmap.Height - 1));
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points[i] = new PointF(relativeX, relativeY);
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}
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// 添加路径 - 使用FillMode.Winding确保路径正确填充
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pathGraphics.FillMode = FillMode.Winding;
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pathGraphics.AddPolygon(points);
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// 验证路径是否有效
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if (!pathGraphics.IsVisible(0, 0) && pathGraphics.GetBounds().Width > 0 && pathGraphics.GetBounds().Height > 0)
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{
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// 设置裁剪区域为路径内部
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resultGraphics.SetClip(pathGraphics);
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// 在裁剪区域内绘制原始图像
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resultGraphics.DrawImage(bitmap, 0, 0);
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// 重置裁剪区域，确保后续操作不受影响
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resultGraphics.ResetClip();
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}
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else
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{
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LogHelper.WriteLogToFile("生成的路径无效，返回原始图像", LogHelper.LogType.Warning);
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// 如果路径无效，返回透明图像
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return resultBitmap;
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}
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}
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}
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LogHelper.WriteLogToFile($"成功应用形状遮罩，路径点数: {path.Count}", LogHelper.LogType.Info);
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return resultBitmap;
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}
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catch (Exception ex)
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{
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LogHelper.WriteLogToFile($"应用形状遮罩失败: {ex.Message}", LogHelper.LogType.Error);
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// 返回完全透明的图像而不是原始图像
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var transparentBitmap = new Bitmap(bitmap.Width, bitmap.Height, PixelFormat.Format32bppArgb);
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using (var g = Graphics.FromImage(transparentBitmap))
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{
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g.Clear(System.Drawing.Color.Transparent);
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}
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return transparentBitmap;
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}
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}
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// 获取DPI缩放比例
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private double GetDpiScale()
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{
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var source = PresentationSource.FromVisual(this);
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if (source?.CompositionTarget != null)
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{
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return source.CompositionTarget.TransformToDevice.M11;
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}
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return 1.0; // 默认DPI
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}
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// 将System.Drawing.Bitmap转换为WPF BitmapSource
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private BitmapSource ConvertBitmapToBitmapSource(Bitmap bitmap)
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{
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try
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{
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using (var memory = new MemoryStream())
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{
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// 使用PNG格式保存，确保透明度信息不丢失
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bitmap.Save(memory, ImageFormat.Png);
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memory.Position = 0;
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var bitmapImage = new BitmapImage();
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bitmapImage.BeginInit();
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bitmapImage.StreamSource = memory;
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bitmapImage.CacheOption = BitmapCacheOption.OnLoad;
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bitmapImage.EndInit();
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bitmapImage.Freeze();
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return bitmapImage;
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}
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}
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catch (Exception ex)
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{
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LogHelper.WriteLogToFile($"转换位图失败: {ex.Message}", LogHelper.LogType.Error);
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throw;
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}
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}
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}
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}
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