src/java.desktop/share/classes/sun/font/CharToGlyphMapper.java

*** 34,43 ****
--- 34,47 ----
  
      public static final int HI_SURROGATE_START = 0xD800;
      public static final int HI_SURROGATE_END = 0xDBFF;
      public static final int LO_SURROGATE_START = 0xDC00;
      public static final int LO_SURROGATE_END = 0xDFFF;
+     public static final int VS_START = 0xFE00;
+     public static final int VS_END = 0xFE0F;
+     public static final int VSS_START = 0xE0100;
+     public static final int VSS_END = 0xE01FF;
  
      public static final int UNINITIALIZED_GLYPH = -1;
      public static final int INVISIBLE_GLYPH_ID = 0xffff;
      public static final int INVISIBLE_GLYPHS   = 0xfffe; // and above
  
*** 75,84 ****
--- 79,93 ----
          chars[0] = unicode;
          charsToGlyphs(1, chars, glyphs);
          return glyphs[0];
      } 
  
+     public int charToVariationGlyph(int unicode, int variationSelector) {
+         // Override this if variation selector is supported.
+         return charToGlyph(unicode);
+     }
+ 
      public abstract int getNumGlyphs();
  
      public abstract void charsToGlyphs(int count,
                                         char[] unicodes, int[] glyphs);
  
*** 86,91 ****
--- 95,105 ----
                                              char[] unicodes, int[] glyphs);
  
      public abstract void charsToGlyphs(int count,
                                         int[] unicodes, int[] glyphs);
  
+     public static boolean isVariationSelector(int charCode) {
+         return ((charCode >= VSS_START && charCode <= VSS_END) ||
+                 (charCode >= VS_START && charCode <= VS_END));
+     }
+ 
  }