icuSources/layout/GlyphSubstitutionTables.h

   1 /*
   2  *
   3  * (C) Copyright IBM Corp. 1998-2004 - 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 "LEGlyphFilter.h"
  17 #include "OpenTypeTables.h"
  18 #include "Lookups.h"
  19 #include "GlyphLookupTables.h"
  20 #include "GlyphDefinitionTables.h"
  21 #include "GlyphPositionAdjustments.h"
  22
  23 U_NAMESPACE_BEGIN
  24
  25 class LEGlyphStorage;
  26
  27 struct GlyphSubstitutionTableHeader : public GlyphLookupTableHeader
  28 {
  29     le_int32    process(LEGlyphStorage &glyphStorage, le_bool rightToLeft, LETag scriptTag, LETag languageTag,
  30                  const GlyphDefinitionTableHeader *glyphDefinitionTableHeader,
  31                  const LEGlyphFilter *filter = NULL, const LETag *featureOrder = NULL) const;
  32 };
  33
  34 enum GlyphSubstitutionSubtableTypes
  35 {
  36     gsstSingle          = 1,
  37     gsstMultiple        = 2,
  38     gsstAlternate       = 3,
  39     gsstLigature        = 4,
  40     gsstContext         = 5,
  41     gsstChainingContext = 6,
  42     gsstExtension       = 7,
  43     gsstReverseChaining = 8
  44 };
  45
  46 typedef LookupSubtable GlyphSubstitutionSubtable;
  47
  48 U_NAMESPACE_END
  49 #endif