icuSources/layout/ClassDefinitionTables.h

   1 /*
   2  *
   3  * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved
   4  *
   5  */
   6
   7 #ifndef __CLASSDEFINITIONTABLES_H
   8 #define __CLASSDEFINITIONTABLES_H
   9
  10 /**
  11  * \file
  12  * \internal
  13  */
  14
  15 #include "LETypes.h"
  16 #include "OpenTypeTables.h"
  17
  18 U_NAMESPACE_BEGIN
  19
  20 struct ClassDefinitionTable
  21 {
  22     le_uint16 classFormat;
  23
  24     le_int32  getGlyphClass(LEGlyphID glyphID) const;
  25     le_bool   hasGlyphClass(le_int32 glyphClass) const;
  26 };
  27
  28 struct ClassDefFormat1Table : ClassDefinitionTable
  29 {
  30     TTGlyphID  startGlyph;
  31     le_uint16  glyphCount;
  32     le_uint16  classValueArray[ANY_NUMBER];
  33
  34     le_int32 getGlyphClass(LEGlyphID glyphID) const;
  35     le_bool  hasGlyphClass(le_int32 glyphClass) const;
  36 };
  37
  38 struct ClassRangeRecord
  39 {
  40     TTGlyphID start;
  41     TTGlyphID end;
  42     le_uint16 classValue;
  43 };
  44
  45 struct ClassDefFormat2Table : ClassDefinitionTable
  46 {
  47     le_uint16        classRangeCount;
  48     GlyphRangeRecord classRangeRecordArray[ANY_NUMBER];
  49
  50     le_int32 getGlyphClass(LEGlyphID glyphID) const;
  51     le_bool hasGlyphClass(le_int32 glyphClass) const;
  52 };
  53
  54 U_NAMESPACE_END
  55 #endif