icuSources/layout/GlyphSubstitutionTables.h

   1 /*
   2  *
   3  * (C) Copyright IBM Corp. 1998-2008 - 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,
  29                         le_bool rightToLeft,
  30                         LETag scriptTag,
  31                         LETag languageTag,
  32                         const GlyphDefinitionTableHeader *glyphDefinitionTableHeader,
  33                         const LEGlyphFilter *filter,
  34                         const FeatureMap *featureMap,
  35                         le_int32 featureMapCount,
  36                         le_bool featureOrder,
  37                         LEErrorCode &success) const;
  38 };
  39
  40 enum GlyphSubstitutionSubtableTypes
  41 {
  42     gsstSingle          = 1,
  43     gsstMultiple        = 2,
  44     gsstAlternate       = 3,
  45     gsstLigature        = 4,
  46     gsstContext         = 5,
  47     gsstChainingContext = 6,
  48     gsstExtension       = 7,
  49     gsstReverseChaining = 8
  50 };
  51
  52 typedef LookupSubtable GlyphSubstitutionSubtable;
  53
  54 U_NAMESPACE_END
  55 #endif