Files
community/Ink Canvas/MainWindow_cs/MW_Screenshot.cs
T
2026-02-22 12:20:37 +08:00

280 lines
11 KiB
C#

using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.IO;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Forms;
using System.Windows.Ink;
using Ink_Canvas.Helpers;
namespace Ink_Canvas
{
public partial class MainWindow : Window
{
/// <summary>
/// 在切页/加页场景下使用:先捕获当前画面到内存并克隆墨迹,然后立即返回;截图与墨迹保存在后台异步执行,不阻塞切页。
/// 调用方应在调用本方法后立即执行 SaveStrokes、ClearStrokes、切页、RestoreStrokes 等逻辑。
/// </summary>
/// <param name="isHideNotification">是否隐藏保存成功通知</param>
/// <param name="fileName">截图文件名(可选)</param>
private void CaptureAndEnqueueScreenshotSave(bool isHideNotification, string fileName = null)
{
var savePath = Settings.Automation.IsSaveScreenshotsInDateFolders
? GetDateFolderPath(fileName)
: GetDefaultFolderPath();
System.Drawing.Bitmap bitmap = null;
StrokeCollection strokesToSave = null;
int pageIndexForStrokes = 0;
string strokeSavePath = null;
try
{
bitmap = CaptureScreenshotToBitmap();
if (bitmap == null) return;
if (Settings.Automation.IsAutoSaveStrokesAtScreenshot && inkCanvas.Strokes.Count > 0)
{
strokesToSave = inkCanvas.Strokes.Clone();
pageIndexForStrokes = CurrentWhiteboardIndex;
var basePath = Settings.Automation.AutoSavedStrokesLocation
+ @"\Auto Saved - BlackBoard Strokes";
if (!Directory.Exists(basePath)) Directory.CreateDirectory(basePath);
strokeSavePath = Path.Combine(basePath,
$"{DateTime.Now:yyyy-MM-dd HH-mm-ss-fff} Page-{pageIndexForStrokes} StrokesCount-{strokesToSave.Count}.icstk");
}
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"CaptureAndEnqueueScreenshotSave 捕获失败: {ex}", LogHelper.LogType.Error);
bitmap?.Dispose();
return;
}
var bitmapToSave = bitmap;
var path = savePath;
var hideNotification = isHideNotification;
_ = Task.Run(() =>
{
try
{
if (bitmapToSave != null)
{
var directory = Path.GetDirectoryName(path);
if (!Directory.Exists(directory))
Directory.CreateDirectory(directory);
bitmapToSave.Save(path, ImageFormat.Png);
bitmapToSave.Dispose();
}
if (strokesToSave != null && !string.IsNullOrEmpty(strokeSavePath))
{
using (var fs = new FileStream(strokeSavePath, FileMode.Create))
{
strokesToSave.Save(fs);
}
}
if (!hideNotification && !string.IsNullOrEmpty(path))
{
Dispatcher.Invoke(() => ShowNotification($"截图成功保存至 {path}"));
}
if (Settings?.Dlass?.AutoUploadDelayMinutes > 0)
{
Task.Delay(TimeSpan.FromMinutes(Settings.Dlass.AutoUploadDelayMinutes)).GetAwaiter().GetResult();
Helpers.DlassNoteUploader.UploadNoteFileAsync(path).GetAwaiter().GetResult();
}
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"后台保存截图/墨迹失败: {ex}", LogHelper.LogType.Error);
bitmapToSave?.Dispose();
}
});
}
/// <summary>
/// 将当前屏幕内容捕获为位图(仅内存,不写文件)。调用方或后台任务负责 Dispose。
/// </summary>
private System.Drawing.Bitmap CaptureScreenshotToBitmap()
{
var rc = SystemInformation.VirtualScreen;
var bitmap = new System.Drawing.Bitmap(rc.Width, rc.Height, PixelFormat.Format32bppArgb);
using (var memoryGraphics = Graphics.FromImage(bitmap))
{
memoryGraphics.CompositingQuality = CompositingQuality.HighQuality;
memoryGraphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
memoryGraphics.SmoothingMode = SmoothingMode.HighQuality;
memoryGraphics.CompositingMode = CompositingMode.SourceOver;
memoryGraphics.CopyFromScreen(rc.X, rc.Y, 0, 0, rc.Size, CopyPixelOperation.SourceCopy);
}
return bitmap;
}
/// <summary>
/// 保存截图
/// </summary>
/// <param name="isHideNotification">是否隐藏通知</param>
/// <param name="fileName">文件名</param>
/// <remarks>
/// 该方法会:
/// 1. 根据设置确定保存路径
/// 2. 调用CaptureAndSaveScreenshot方法捕获并保存截图
/// 3. 如果设置了自动保存墨迹,调用SaveInkCanvasStrokes方法保存墨迹
/// </remarks>
private void SaveScreenShot(bool isHideNotification, string fileName = null)
{
var savePath = Settings.Automation.IsSaveScreenshotsInDateFolders
? GetDateFolderPath(fileName)
: GetDefaultFolderPath();
CaptureAndSaveScreenshot(savePath, isHideNotification);
if (Settings.Automation.IsAutoSaveStrokesAtScreenshot)
SaveInkCanvasStrokes(false);
}
/// <summary>
/// 保存截图到桌面
/// </summary>
/// <remarks>
/// 该方法会:
/// 1. 生成桌面路径和文件名
/// 2. 调用CaptureAndSaveScreenshot方法捕获并保存截图到桌面
/// 3. 如果设置了自动保存墨迹,调用SaveInkCanvasStrokes方法保存墨迹
/// </remarks>
internal void SaveScreenShotToDesktop()
{
var desktopPath = Path.Combine(
Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory),
$"{DateTime.Now:yyyy-MM-dd_HH-mm-ss}.png");
CaptureAndSaveScreenshot(desktopPath, false);
if (Settings.Automation.IsAutoSaveStrokesAtScreenshot)
SaveInkCanvasStrokes(false);
}
/// <summary>
/// 提取公共的截图和保存逻辑
/// </summary>
/// <param name="savePath">保存路径</param>
/// <param name="isHideNotification">是否隐藏通知</param>
/// <remarks>
/// 该方法会:
/// 1. 获取虚拟屏幕边界
/// 2. 创建位图并设置高质量渲染
/// 3. 从屏幕复制内容到位图
/// 4. 确保保存目录存在
/// 5. 保存为PNG格式
/// 6. 如果不隐藏通知,显示保存成功通知
/// 7. 异步上传截图到Dlass
/// </remarks>
private void CaptureAndSaveScreenshot(string savePath, bool isHideNotification)
{
var rc = SystemInformation.VirtualScreen;
using (var bitmap = new Bitmap(rc.Width, rc.Height, PixelFormat.Format32bppArgb))
using (var memoryGraphics = Graphics.FromImage(bitmap))
{
// 设置高质量渲染
memoryGraphics.CompositingQuality = CompositingQuality.HighQuality;
memoryGraphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
memoryGraphics.SmoothingMode = SmoothingMode.HighQuality;
memoryGraphics.CompositingMode = CompositingMode.SourceOver;
memoryGraphics.CopyFromScreen(rc.X, rc.Y, 0, 0, rc.Size, CopyPixelOperation.SourceCopy);
// 确保目录存在
var directory = Path.GetDirectoryName(savePath);
if (!Directory.Exists(directory))
{
Directory.CreateDirectory(directory);
}
// 使用PNG格式保存,确保透明度信息不丢失
bitmap.Save(savePath, ImageFormat.Png);
}
if (!isHideNotification)
{
ShowNotification($"截图成功保存至 {savePath}");
}
_ = Task.Run(async () =>
{
try
{
var delayMinutes = Settings?.Dlass?.AutoUploadDelayMinutes ?? 0;
if (delayMinutes > 0)
{
await Task.Delay(TimeSpan.FromMinutes(delayMinutes));
}
await Helpers.DlassNoteUploader.UploadNoteFileAsync(savePath);
}
catch (Exception)
{
}
});
}
/// <summary>
/// 获取日期文件夹路径
/// </summary>
/// <param name="fileName">文件名</param>
/// <returns>日期文件夹路径</returns>
/// <remarks>
/// 该方法会:
/// 1. 如果文件名为空,使用当前时间作为文件名
/// 2. 获取基础路径和日期文件夹名
/// 3. 组合路径并返回
/// </remarks>
private string GetDateFolderPath(string fileName)
{
if (string.IsNullOrWhiteSpace(fileName))
{
fileName = DateTime.Now.ToString("HH-mm-ss");
}
var basePath = Settings.Automation.AutoSavedStrokesLocation;
var dateFolder = DateTime.Now.ToString("yyyyMMdd");
return Path.Combine(
basePath,
"Auto Saved - Screenshots",
dateFolder,
$"{fileName}.png");
}
/// <summary>
/// 获取默认文件夹路径
/// </summary>
/// <returns>默认文件夹路径</returns>
/// <remarks>
/// 该方法会:
/// 1. 获取基础路径
/// 2. 组合截图文件夹路径
/// 3. 确保截图文件夹存在
/// 4. 生成文件名并组合完整路径返回
/// </remarks>
private string GetDefaultFolderPath()
{
var basePath = Settings.Automation.AutoSavedStrokesLocation;
var screenshotsFolder = Path.Combine(basePath, "Auto Saved - Screenshots");
if (!Directory.Exists(screenshotsFolder))
{
Directory.CreateDirectory(screenshotsFolder);
}
return Path.Combine(
screenshotsFolder,
$"{DateTime.Now:yyyy-MM-dd_HH-mm-ss}.png");
}
}
}