icuSources/layout/GlyphSubstitutionTables.h

   1 /*
   2  *
   3  * (C) Copyright IBM Corp. 1998-2005 - All Rights Reserved
   4  *
   5  */
   6
   7 #ifndef __GLYPHSUBSTITUTIONTABLES_H
   8 #define __GLYPHSUBSTITUTIONTABLES_H
   9
  10 /**
  11  * \file
  12  * \internal
  13  */
  14
  15 #include "LETypes.h"
  16 #include "OpenTypeTables.h"
  17 #include "Lookups.h"
  18 #include "GlyphLookupTables.h"
  19
  20 U_NAMESPACE_BEGIN
  21
  22 class  LEGlyphStorage;
  23 class  LEGlyphFilter;
  24 struct GlyphDefinitionTableHeader;
  25
  26 struct GlyphSubstitutionTableHeader : public GlyphLookupTableHeader
  27 {
  28     le_int32    process(LEGlyphStorage &glyphStorage, le_bool rightToLeft, LETag scriptTag, LETag languageTag,
  29                         const GlyphDefinitionTableHeader *glyphDefinitionTableHeader, const LEGlyphFilter *filter,
  30                         const FeatureMap *featureMap, le_int32 featureMapCount, le_bool featureOrder) const;
  31 };
  32
  33 enum GlyphSubstitutionSubtableTypes
  34 {
  35     gsstSingle          = 1,
  36     gsstMultiple        = 2,
  37     gsstAlternate       = 3,
  38     gsstLigature        = 4,
  39     gsstContext         = 5,
  40     gsstChainingContext = 6,
  41     gsstExtension       = 7,
  42     gsstReverseChaining = 8
  43 };
  44
  45 typedef LookupSubtable GlyphSubstitutionSubtable;
  46
  47 U_NAMESPACE_END
  48 #endif