86 lines
2.7 KiB
C++
86 lines
2.7 KiB
C++
// Copyright (C) 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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* %W% %E%
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*
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* (C) Copyright IBM Corp. 1998-2016 - All Rights Reserved
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*
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*/
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#ifndef __LOOKUPPROCESSOR_H
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#define __LOOKUPPROCESSOR_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 "LEFontInstance.h"
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#include "OpenTypeTables.h"
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#include "LETableReference.h"
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#include "Lookups.h"
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U_NAMESPACE_BEGIN
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class LEFontInstance;
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class LEGlyphStorage;
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class GlyphIterator;
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class GlyphPositionAdjustments;
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struct FeatureTable;
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struct FeatureListTable;
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struct GlyphDefinitionTableHeader;
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struct LookupSubtable;
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class LookupProcessor : public UMemory {
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public:
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le_int32 process(LEGlyphStorage &glyphStorage, GlyphPositionAdjustments *glyphPositionAdjustments,
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le_bool rightToLeft, const LEReferenceTo<GlyphDefinitionTableHeader> &glyphDefinitionTableHeader, const LEFontInstance *fontInstance, LEErrorCode& success) const;
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le_uint32 applyLookupTable(const LEReferenceTo<LookupTable> &lookupTable, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode& success) const;
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le_uint32 applySingleLookup(le_uint16 lookupTableIndex, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode& success) const;
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virtual le_uint32 applySubtable(const LEReferenceTo<LookupSubtable> &lookupSubtable, le_uint16 subtableType,
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GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode& success) const = 0;
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virtual ~LookupProcessor();
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const LETableReference &getReference() const { return fReference; }
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protected:
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LookupProcessor(const LETableReference &baseAddress,
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Offset scriptListOffset,
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Offset featureListOffset,
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Offset lookupListOffset,
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LETag scriptTag,
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LETag languageTag,
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const FeatureMap *featureMap,
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le_int32 featureMapCount,
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le_bool orderFeatures,
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LEErrorCode& success);
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LookupProcessor();
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le_int32 selectLookups(const LEReferenceTo<FeatureTable> &featureTable, FeatureMask featureMask, le_int32 order, LEErrorCode &success);
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LEReferenceTo<LookupListTable> lookupListTable;
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LEReferenceTo<FeatureListTable> featureListTable;
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FeatureMask *lookupSelectArray;
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le_uint32 lookupSelectCount;
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le_uint16 *lookupOrderArray;
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le_uint32 lookupOrderCount;
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LETableReference fReference;
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private:
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LookupProcessor(const LookupProcessor &other); // forbid copying of this class
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LookupProcessor &operator=(const LookupProcessor &other); // forbid copying of this class
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};
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U_NAMESPACE_END
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#endif
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