source/layout/GlyphSubstitutionTables.h

   1 /*
   2  *
   3  * (C) Copyright IBM Corp. 1998-2013 - 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(const LEReferenceTo<GlyphSubstitutionTableHeader> &base,
  29                       LEGlyphStorage &glyphStorage,
  30                         le_bool rightToLeft,
  31                         LETag scriptTag,
  32                         LETag languageTag,
  33                         const LEReferenceTo<GlyphDefinitionTableHeader> &glyphDefinitionTableHeader,
  34                         const LEGlyphFilter *filter,
  35                         const FeatureMap *featureMap,
  36                         le_int32 featureMapCount,
  37                         le_bool featureOrder,
  38                         LEErrorCode &success) const;
  39 };
  40
  41 enum GlyphSubstitutionSubtableTypes
  42 {
  43     gsstSingle          = 1,
  44     gsstMultiple        = 2,
  45     gsstAlternate       = 3,
  46     gsstLigature        = 4,
  47     gsstContext         = 5,
  48     gsstChainingContext = 6,
  49     gsstExtension       = 7,
  50     gsstReverseChaining = 8
  51 };
  52
  53 typedef LookupSubtable GlyphSubstitutionSubtable;
  54
  55 U_NAMESPACE_END
  56 #endif