83 lines
2.6 KiB
C
83 lines
2.6 KiB
C
/*
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*
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* (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved
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*
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*/
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#ifndef __LOOKUPS_H
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#define __LOOKUPS_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 "OpenTypeTables.h"
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U_NAMESPACE_BEGIN
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enum LookupFlags
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{
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lfBaselineIsLogicalEnd = 0x0001, // The MS spec. calls this flag "RightToLeft" but this name is more accurate
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lfIgnoreBaseGlyphs = 0x0002,
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lfIgnoreLigatures = 0x0004,
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lfIgnoreMarks = 0x0008,
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lfReservedMask = 0x00F0,
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lfMarkAttachTypeMask = 0xFF00,
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lfMarkAttachTypeShift = 8
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};
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struct LookupSubtable
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{
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le_uint16 subtableFormat;
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Offset coverageTableOffset;
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inline le_int32 getGlyphCoverage(const LEReferenceTo<LookupSubtable> &base, LEGlyphID glyphID, LEErrorCode &success) const;
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le_int32 getGlyphCoverage(const LEReferenceTo<LookupSubtable> &base, Offset tableOffset, LEGlyphID glyphID, LEErrorCode &success) const;
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// convenience
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inline le_int32 getGlyphCoverage(const LETableReference &base, LEGlyphID glyphID, LEErrorCode &success) const;
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inline le_int32 getGlyphCoverage(const LETableReference &base, Offset tableOffset, LEGlyphID glyphID, LEErrorCode &success) const;
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};
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struct LookupTable
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{
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le_uint16 lookupType;
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le_uint16 lookupFlags;
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le_uint16 subTableCount;
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Offset subTableOffsetArray[ANY_NUMBER];
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const LEReferenceTo<LookupSubtable> getLookupSubtable(const LEReferenceTo<LookupTable> &base, le_uint16 subtableIndex, LEErrorCode &success) const;
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};
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LE_VAR_ARRAY(LookupTable, subTableOffsetArray)
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struct LookupListTable
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{
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le_uint16 lookupCount;
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Offset lookupTableOffsetArray[ANY_NUMBER];
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const LEReferenceTo<LookupTable> getLookupTable(const LEReferenceTo<LookupListTable> &base, le_uint16 lookupTableIndex, LEErrorCode &success) const;
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};
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LE_VAR_ARRAY(LookupListTable, lookupTableOffsetArray)
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inline le_int32 LookupSubtable::getGlyphCoverage(const LEReferenceTo<LookupSubtable> &base, LEGlyphID glyphID, LEErrorCode &success) const
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{
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return getGlyphCoverage(base, coverageTableOffset, glyphID, success);
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}
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inline le_int32 LookupSubtable::getGlyphCoverage(const LETableReference &base, LEGlyphID glyphID, LEErrorCode &success) const {
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LEReferenceTo<LookupSubtable> thisRef(base, success, this);
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return getGlyphCoverage(thisRef, glyphID, success);
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}
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inline le_int32 LookupSubtable::getGlyphCoverage(const LETableReference &base, Offset tableOffset, LEGlyphID glyphID, LEErrorCode &success) const {
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LEReferenceTo<LookupSubtable> thisRef(base, success, this);
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return getGlyphCoverage(thisRef, tableOffset, glyphID, success);
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}
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U_NAMESPACE_END
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#endif
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