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