Glyphs and Metrics of Type1 Fonts | Java

Get Font Metrics

Font metrics contain information such as Ascender, Descender, TypoAscender, TypoDescender and UnitsPerEm. Aspose.Font for Java API can read the Font Metrics information from the Type1 Font File using the following sample code.

// For complete examples and data files, please go to https://github.com/aspose-font/Aspose.Font-for-Java
String fileName = Utils.getDataDir() + "courier.pfb"; //Font file name with full path

FontDefinition fd = new FontDefinition(FontType.Type1, new FontFileDefinition("pfb", new FileSystemStreamSource(fileName)));
      Type1Font font = (Type1Font) Font.open(fd);

      String name = font.getFontName();
      System.out.println("Font name: " + name);
      System.out.println("Glyph count: " + font.getNumGlyphs());
      String metrics = MessageFormat.format(
          "Font metrics: ascender - {0}, descender - {1}, typo ascender = {2}, typo descender = {3}, UnitsPerEm = {4}",
          font.getMetrics().getAscender(), font.getMetrics().getDescender(),
          font.getMetrics().getTypoAscender(), font.getMetrics().getTypoDescender(), font.getMetrics().getUnitsPerEM());

      System.out.println(metrics);

Detect Latin Symbols

Aspose.Font for Java lets you detect Latin Symbols from Type1 font files. This can be achieved using the following sample code.

• Load the Font file using FontFileDefinition
• Decode the GlyphId using the DecodeToGid() method

  // For complete examples and data files, please go to https://github.com/aspose-font/Aspose.Font-for-Java
   String fileName = Utils.getDataDir() + "courier.pfb"; //Font file name with full path
   
   FontDefinition fd = new FontDefinition(FontType.Type1, new FontFileDefinition("pfb", new FileSystemStreamSource(fileName)));
         Type1Font font = (Type1Font) Font.open(fd);
   
         boolean latinText = true;
   
   
         for (int code = 65; code < 123; code++)
         {
             GlyphId gid = font.getEncoding().decodeToGid(code);
             if (gid == null || gid == GlyphUInt32Id.getNotDef())
             {
                 latinText = false;
             }
         }
   
         if (latinText)
         {
             System.out.println(MessageFormat.format("Font {0} supports latin symbols.", font.getFontName()));
         }
         else
         {
             System.out.println(MessageFormat.format("Latin symbols are not supported by font {0}.", font.getFontName()));
         }