add:墨迹全屏保存 #79

2025-07-16 09:49:41 +08:00
parent a6cd9c955b
commit 3e87ed4f9b
5 changed files with 96 additions and 2 deletions
@@ -6,6 +6,10 @@ using System.Windows;
 using System.Windows.Ink;
 using System.Windows.Input;
 using File = System.IO.File;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Forms;
+using OpenFileDialog = Microsoft.Win32.OpenFileDialog;

 namespace Ink_Canvas {
    public partial class MainWindow : Window {
@@ -33,9 +37,77 @@ namespace Ink_Canvas {
                else
                    //savePathWithName = savePath + @"\" + DateTime.Now.ToString("u").Replace(':', '-') + ".icstk";
                    savePathWithName = savePath + @"\" + DateTime.Now.ToString("yyyy-MM-dd HH-mm-ss-fff") + ".icstk";
+                
                var fs = new FileStream(savePathWithName, FileMode.Create);
-                inkCanvas.Strokes.Save(fs);
-                if (newNotice) ShowNotification("墨迹成功保存至 " + savePathWithName);
+                
+                if (Settings.Automation.IsSaveFullPageStrokes)
+                {
+                    // 全页面保存模式 - 保存整个墨迹页面的图像
+                    var bitmap = new System.Drawing.Bitmap(
+                        (int)System.Windows.Forms.Screen.PrimaryScreen.Bounds.Width, 
+                        (int)System.Windows.Forms.Screen.PrimaryScreen.Bounds.Height);
+                    
+                    using (var g = System.Drawing.Graphics.FromImage(bitmap))
+                    {
+                        // 创建黑色或透明背景
+                        System.Drawing.Color bgColor = Settings.Canvas.UsingWhiteboard 
+                            ? System.Drawing.Color.White 
+                            : System.Drawing.Color.FromArgb(22, 41, 36); // 黑板背景色
+                        g.Clear(bgColor);
+                        
+                        // 将InkCanvas墨迹渲染到Visual
+                        var visual = new DrawingVisual();
+                        using (var dc = visual.RenderOpen())
+                        {
+                            // 创建一个VisualBrush，使用inkCanvas作为源
+                            var visualBrush = new VisualBrush(inkCanvas);
+                            // 绘制矩形并填充为inkCanvas的内容
+                            dc.DrawRectangle(visualBrush, null, new Rect(0, 0, inkCanvas.ActualWidth, inkCanvas.ActualHeight));
+                        }
+                        
+                        // 创建适合墨迹画布尺寸的渲染位图
+                        var rtb = new RenderTargetBitmap(
+                            (int)inkCanvas.ActualWidth, (int)inkCanvas.ActualHeight, 
+                            96, 96, 
+                            PixelFormats.Pbgra32);
+                        rtb.Render(visual);
+                        
+                        // 转换为GDI+ Bitmap并保存
+                        var encoder = new PngBitmapEncoder();
+                        encoder.Frames.Add(BitmapFrame.Create(rtb));
+                        
+                        using (var ms = new MemoryStream())
+                        {
+                            encoder.Save(ms);
+                            ms.Seek(0, SeekOrigin.Begin);
+                            var imgBitmap = new System.Drawing.Bitmap(ms);
+                            
+                            // 将生成的墨迹图像绘制到屏幕截图上
+                            // 居中绘制，确保墨迹位于屏幕中央
+                            int x = (bitmap.Width - imgBitmap.Width) / 2;
+                            int y = (bitmap.Height - imgBitmap.Height) / 2;
+                            g.DrawImage(imgBitmap, x, y);
+                            
+                            // 保存为PNG
+                            string imagePathWithName = Path.ChangeExtension(savePathWithName, "png");
+                            bitmap.Save(imagePathWithName, System.Drawing.Imaging.ImageFormat.Png);
+                            
+                            // 仍然保存墨迹文件以兼容旧版本
+                            inkCanvas.Strokes.Save(fs);
+                        }
+                    }
+                    
+                    // 显示提示
+                    if (newNotice) ShowNotification("墨迹成功全页面保存至 " + Path.ChangeExtension(savePathWithName, "png"));
+                }
+                else
+                {
+                    // 常规保存模式 - 仅保存墨迹对象
+                    inkCanvas.Strokes.Save(fs);
+                    if (newNotice) ShowNotification("墨迹成功保存至 " + savePathWithName);
+                }
+                
+                fs.Close();
            }
            catch (Exception ex) {
                ShowNotification("墨迹保存失败");