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/*
* %W% %E%
*
* (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved
*
*/
#ifndef __LOOKUPPROCESSOR_H
#define __LOOKUPPROCESSOR_H
/**
* \file
* \internal
*/
#include "LETypes.h"
#include "LEFontInstance.h"
#include "OpenTypeTables.h"
#include "LETableReference.h"
//#include "Lookups.h"
//#include "Features.h"
U_NAMESPACE_BEGIN
class LEFontInstance;
class LEGlyphStorage;
class GlyphIterator;
class GlyphPositionAdjustments;
struct FeatureTable;
struct FeatureListTable;
struct GlyphDefinitionTableHeader;
struct LookupSubtable;
struct LookupTable;
class LookupProcessor : public UMemory {
public:
le_int32 process(LEGlyphStorage &glyphStorage, GlyphPositionAdjustments *glyphPositionAdjustments,
le_bool rightToLeft, const LEReferenceTo<GlyphDefinitionTableHeader> &glyphDefinitionTableHeader, const LEFontInstance *fontInstance, LEErrorCode& success) const;
le_uint32 applyLookupTable(const LEReferenceTo<LookupTable> &lookupTable, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode& success) const;
le_uint32 applySingleLookup(le_uint16 lookupTableIndex, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode& success) const;
virtual le_uint32 applySubtable(const LEReferenceTo<LookupSubtable> &lookupSubtable, le_uint16 subtableType,
GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode& success) const = 0;
virtual ~LookupProcessor();
const LETableReference &getReference() const { return fReference; }
protected:
LookupProcessor(const LETableReference &baseAddress,
Offset scriptListOffset,
Offset featureListOffset,
Offset lookupListOffset,
LETag scriptTag,
LETag languageTag,
const FeatureMap *featureMap,
le_int32 featureMapCount,
le_bool orderFeatures,
LEErrorCode& success);
LookupProcessor();
le_int32 selectLookups(const LEReferenceTo<FeatureTable> &featureTable, FeatureMask featureMask, le_int32 order, LEErrorCode &success);
LEReferenceTo<LookupListTable> lookupListTable;
LEReferenceTo<FeatureListTable> featureListTable;
FeatureMask *lookupSelectArray;
le_uint32 lookupSelectCount;
le_uint16 *lookupOrderArray;
le_uint32 lookupOrderCount;
LETableReference fReference;
private:
LookupProcessor(const LookupProcessor &other); // forbid copying of this class
LookupProcessor &operator=(const LookupProcessor &other); // forbid copying of this class
};
U_NAMESPACE_END
#endif
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