测试符号字体渲染是方框

Author: lindexi

src/MediaConverters/SkiaWmfRenderer/samples/sample/Program.cs

@@ -6,7 +6,7 @@
 using System.Text;
 
 using DocSharp.Markdown;
-
+using SkiaSharp;
 using SkiaWmfRenderer;
 
 var markdownText = new StringBuilder();
@@ -31,15 +31,45 @@
         Console.WriteLine($"Can not recognition '{args[0]}' as File or Folder");
     }
 }
-else 
+else
 {
-    // Debug mode
-    var folder = @"C:\lindexi\wmf公式\";
+    using var skBitmap = new SKBitmap(300,300,SKColorType.Bgra8888,SKAlphaType.Premul);
+    skBitmap.Erase(SKColors.White);
+    using var skCanvas = new SKCanvas(skBitmap);
+    var text = "p";
+    using var skPaint = new SKPaint();
+    skPaint.TextSize = 50;
+    var symbolFontFile = Path.Join(AppContext.BaseDirectory, "symbol.ttf");
+    var skTypeface = SKTypeface.FromFile(symbolFontFile);
+    Console.WriteLine($"Font='{symbolFontFile}' SKTypeface={skTypeface.FamilyName} GlyphCount={skTypeface.GlyphCount}");
+    Console.WriteLine($"ContainsGlyph={skTypeface.ContainsGlyph('p')}");
+    skPaint.Typeface = skTypeface;
+    skPaint.Color = SKColors.Black;
+    skPaint.IsAntialias = true;
+    skCanvas.DrawText(text, 50, 100, skPaint);
+    var outputFile = Path.Join(outputFolder, $"{DateTime.Now:HHmmss}.png");
+    using var outputStream = File.OpenWrite(outputFile);
+    skBitmap.Encode(outputStream, SKEncodedImageFormat.Png, 100);
+    if (File.Exists(outputFile))
+    {
+        return;
+    }
+
+    if (OperatingSystem.IsWindows())
+    {
+        // Debug mode
+        var folder = @"C:\lindexi\wmf公式\";
 
-    ConvertImageFolder(folder);
+        ConvertImageFolder(folder);
+    }
+    else
+    {
+        var file = Path.Join(AppContext.BaseDirectory, "image.wmf");
+        ConvertImageFile(file);
+    }
 }
 
-    var markdownFile = Path.Join(outputFolder, "README.md");
+var markdownFile = Path.Join(outputFolder, "README.md");
 var markdown = markdownText.ToString();
 File.WriteAllText(markdownFile, markdown);
 

src/MediaConverters/SkiaWmfRenderer/src/SkiaWmfRenderer/Rendering/WmfRenderStatus.cs

@@ -62,15 +62,29 @@ public void UpdateSkiaTextStatus(string text)
 
         skFont.Typeface?.Dispose();
 
-        SKTypeface? typeface = SKTypeface.FromFamilyName(CurrentFontName, (SKFontStyleWeight) FontWeight,
-            SKFontStyleWidth.Normal, IsItalic ? SKFontStyleSlant.Italic : SKFontStyleSlant.Upright);
+        SKTypeface? typeface;
+        if (CurrentFontName == "Symbol")
+        {
+            var symbolFontFile = Path.Join(AppContext.BaseDirectory, "StandardSymbolsPS.ttf");
+            symbolFontFile = Path.Join(AppContext.BaseDirectory, "symbol.ttf");
+            typeface = SKTypeface.FromFile(symbolFontFile);
+        }
+        else
+        {
+            typeface = SKTypeface.FromFamilyName(CurrentFontName, (SKFontStyleWeight) FontWeight,
+           SKFontStyleWidth.Normal, IsItalic ? SKFontStyleSlant.Italic : SKFontStyleSlant.Upright);
+        }
 
-        Console.WriteLine($"CurrentFontName='{CurrentFontName}' get the SKTypeface {(typeface is null ? "is null" : "not null")}. Text={text}");
+
+
+        Console.WriteLine($"CurrentFontName='{CurrentFontName}' get the SKTypeface {(typeface is null ? "is null" : "not null")}. SKTypeface={typeface?.FamilyName} GlyphCount={typeface?.GlyphCount}. Text={text}");
 
         skFont.Typeface = typeface;
 
         Paint.Style = SKPaintStyle.Fill;
         Paint.Color = CurrentTextColor;
+
+        Paint.Typeface = typeface;
     }
 
     public void UpdateSkiaStrokeStatus()