86 lines
1.6 KiB
C++
86 lines
1.6 KiB
C++
/*
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*
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* (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved
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*
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*/
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#ifndef __MORPHTABLES_H
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#define __MORPHTABLES_H
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/**
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* \file
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* \internal
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*/
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#include "LETypes.h"
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#include "LayoutTables.h"
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U_NAMESPACE_BEGIN
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class LEGlyphStorage;
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typedef le_uint32 FeatureFlags;
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typedef le_int16 FeatureType;
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typedef le_int16 FeatureSetting;
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struct FeatureTableEntry
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{
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FeatureType featureType;
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FeatureSetting featureSetting;
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FeatureFlags enableFlags;
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FeatureFlags disableFlags;
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};
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struct ChainHeader
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{
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FeatureFlags defaultFlags;
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le_uint32 chainLength;
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le_int16 nFeatureEntries;
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le_int16 nSubtables;
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FeatureTableEntry featureTable[ANY_NUMBER];
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};
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struct MorphTableHeader
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{
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le_int32 version;
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le_uint32 nChains;
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ChainHeader chains[ANY_NUMBER];
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void process(LEGlyphStorage &glyphStorage) const;
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};
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typedef le_int16 SubtableCoverage;
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enum SubtableCoverageFlags
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{
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scfVertical = 0x8000,
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scfReverse = 0x4000,
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scfIgnoreVt = 0x2000,
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scfReserved = 0x1FF8,
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scfTypeMask = 0x0007
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};
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enum MorphSubtableType
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{
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mstIndicRearrangement = 0,
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mstContextualGlyphSubstitution = 1,
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mstLigatureSubstitution = 2,
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mstReservedUnused = 3,
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mstNonContextualGlyphSubstitution = 4,
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mstContextualGlyphInsertion = 5
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};
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struct MorphSubtableHeader
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{
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le_int16 length;
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SubtableCoverage coverage;
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FeatureFlags subtableFeatures;
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void process(LEGlyphStorage &glyphStorage) const;
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};
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U_NAMESPACE_END
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#endif
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