85 lines
1.7 KiB
C++
85 lines
1.7 KiB
C++
/***************************************************************************
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*
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* Copyright (C) 1998-2003, International Business Machines
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* Corporation and others. All Rights Reserved.
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*
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************************************************************************/
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#ifndef __CMAPS_H
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#define __CMAPS_H
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#include "LETypes.h"
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#include "sfnt.h"
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class CMAPMapper
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{
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public:
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virtual LEGlyphID unicodeToGlyph(LEUnicode32 unicode32) const = 0;
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virtual ~CMAPMapper();
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static CMAPMapper *createUnicodeMapper(const CMAPTable *cmap);
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protected:
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CMAPMapper(const CMAPTable *cmap);
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CMAPMapper() {};
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private:
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const CMAPTable *fcmap;
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};
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class CMAPFormat4Mapper : public CMAPMapper
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{
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public:
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CMAPFormat4Mapper(const CMAPTable *cmap, const CMAPFormat4Encoding *header);
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virtual ~CMAPFormat4Mapper();
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virtual LEGlyphID unicodeToGlyph(LEUnicode32 unicode32) const;
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protected:
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CMAPFormat4Mapper() {};
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private:
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le_uint16 fEntrySelector;
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le_uint16 fRangeShift;
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const le_uint16 *fEndCodes;
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const le_uint16 *fStartCodes;
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const le_uint16 *fIdDelta;
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const le_uint16 *fIdRangeOffset;
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};
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class CMAPGroupMapper : public CMAPMapper
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{
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public:
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CMAPGroupMapper(const CMAPTable *cmap, const CMAPGroup *groups, le_uint32 nGroups);
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virtual ~CMAPGroupMapper();
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virtual LEGlyphID unicodeToGlyph(LEUnicode32 unicode32) const;
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protected:
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CMAPGroupMapper() {};
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private:
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le_int32 fPower;
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le_int32 fRangeOffset;
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const CMAPGroup *fGroups;
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};
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inline CMAPMapper::CMAPMapper(const CMAPTable *cmap)
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: fcmap(cmap)
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{
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// nothing else to do
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}
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inline CMAPMapper::~CMAPMapper()
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{
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LE_DELETE_ARRAY(fcmap);
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}
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#endif
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