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