/*

  *

  * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved

  *

  */

 #ifndef __MORPHTABLES_H

 #define __MORPHTABLES_H

 /**

  * \file

  * \internal

  */

 #include "LETypes.h"

 #include "LayoutTables.h"

 U_NAMESPACE_BEGIN

 class LEGlyphStorage;

 typedef le_uint32 FeatureFlags;

 typedef le_int16 FeatureType;

 typedef le_int16 FeatureSetting;

 struct FeatureTableEntry

 {

     FeatureType     featureType;

     FeatureSetting  featureSetting;

     FeatureFlags    enableFlags;

     FeatureFlags    disableFlags;

 };

 struct ChainHeader

 {

     FeatureFlags        defaultFlags;

     le_uint32           chainLength;

     le_int16           nFeatureEntries;

     le_int16           nSubtables;

     FeatureTableEntry   featureTable[ANY_NUMBER];

 };

 struct MorphTableHeader

 {

     le_int32    version;

     le_uint32   nChains;

     ChainHeader chains[ANY_NUMBER];

     void process(LEGlyphStorage &glyphStorage) const;

 };

 typedef le_int16 SubtableCoverage;

 enum SubtableCoverageFlags

 {

     scfVertical = 0x8000,

     scfReverse  = 0x4000,

     scfIgnoreVt = 0x2000,

     scfReserved = 0x1FF8,

     scfTypeMask = 0x0007

 };

 enum MorphSubtableType

 {

     mstIndicRearrangement               = 0,

     mstContextualGlyphSubstitution      = 1,

     mstLigatureSubstitution             = 2,

     mstReservedUnused                   = 3,

     mstNonContextualGlyphSubstitution   = 4,

     mstContextualGlyphInsertion         = 5

 };

 struct MorphSubtableHeader

 {

     le_int16           length;

     SubtableCoverage    coverage;

     FeatureFlags        subtableFeatures;

     void process(LEGlyphStorage &glyphStorage) const;

 };

 U_NAMESPACE_END

 #endif