47  * can get dingbats and symbols from them. This can be dispensed with when
  48  * either AWT is based on 2D, or when the X font path is known to always
  49  * contain a Type1 or TrueType font that can be used in font configuration
  50  * files to replace the F3 fonts.
  51  * 2. When location of font files by 2D fails, because of some system
  52  * configuration problem, it is desirable to have a fall back to some
  53  * functionality that lessens the immediate impact on users. Being able
  54  * to perform limited operations by using bitmaps from X11 helps here.
  55  */
  56 
  57 public class NativeFont extends PhysicalFont {
  58 
  59     String encoding;
  60 
  61     private int numGlyphs = -1;
  62     boolean isBitmapDelegate;
  63     PhysicalFont delegateFont;
  64 
  65     /**
  66      * Verifies native font is accessible.
  67      * @throws FontFormatException - if the font can't be located.
  68      */
  69     public NativeFont(String platName, boolean bitmapDelegate)
  70         throws FontFormatException {
  71         super(platName, null);
  72 
  73         /* This is set true if this is an instance of a NativeFont
  74          * created by some other font, to get native bitmaps.
  75          * The delegating font will call this font only for "basic"
  76          * cases - ie non-rotated, uniform scale, monochrome bitmaps.
  77          * If this is false, then this instance may need to itself
  78          * delegate to another font for non-basic cases. Since
  79          * NativeFonts are used in that way only for symbol and dingbats
  80          * we know its safe to delegate these to the JRE's default
  81          * physical font (Lucida Sans Regular).
  82          */
  83         isBitmapDelegate = bitmapDelegate;
  84 
  85         if (GraphicsEnvironment.isHeadless()) {
  86             throw new FontFormatException("Native font in headless toolkit");
  87         }

  47  * can get dingbats and symbols from them. This can be dispensed with when
  48  * either AWT is based on 2D, or when the X font path is known to always
  49  * contain a Type1 or TrueType font that can be used in font configuration
  50  * files to replace the F3 fonts.
  51  * 2. When location of font files by 2D fails, because of some system
  52  * configuration problem, it is desirable to have a fall back to some
  53  * functionality that lessens the immediate impact on users. Being able
  54  * to perform limited operations by using bitmaps from X11 helps here.
  55  */
  56 
  57 public class NativeFont extends PhysicalFont {
  58 
  59     String encoding;
  60 
  61     private int numGlyphs = -1;
  62     boolean isBitmapDelegate;
  63     PhysicalFont delegateFont;
  64 
  65     /**
  66      * Verifies native font is accessible.
  67      * @throws FontFormatException if the font can't be located.
  68      */
  69     public NativeFont(String platName, boolean bitmapDelegate)
  70         throws FontFormatException {
  71         super(platName, null);
  72 
  73         /* This is set true if this is an instance of a NativeFont
  74          * created by some other font, to get native bitmaps.
  75          * The delegating font will call this font only for "basic"
  76          * cases - ie non-rotated, uniform scale, monochrome bitmaps.
  77          * If this is false, then this instance may need to itself
  78          * delegate to another font for non-basic cases. Since
  79          * NativeFonts are used in that way only for symbol and dingbats
  80          * we know its safe to delegate these to the JRE's default
  81          * physical font (Lucida Sans Regular).
  82          */
  83         isBitmapDelegate = bitmapDelegate;
  84 
  85         if (GraphicsEnvironment.isHeadless()) {
  86             throw new FontFormatException("Native font in headless toolkit");
  87         }