/***************************************************************************

 *

 *   Copyright (C) 1998-2003, International Business Machines

 *   Corporation and others.  All Rights Reserved.

 *

 ************************************************************************/

 #ifndef __CMAPS_H

 #define __CMAPS_H

 #include "LETypes.h"

 #include "sfnt.h"

 class CMAPMapper

 {

 public:

     virtual LEGlyphID unicodeToGlyph(LEUnicode32 unicode32) const = 0;

     virtual ~CMAPMapper();

     static CMAPMapper *createUnicodeMapper(const CMAPTable *cmap);

 protected:

     CMAPMapper(const CMAPTable *cmap);

     CMAPMapper() {};

 private:

     const CMAPTable *fcmap;

 };

 class CMAPFormat4Mapper : public CMAPMapper

 {

 public:

     CMAPFormat4Mapper(const CMAPTable *cmap, const CMAPFormat4Encoding *header);

     virtual ~CMAPFormat4Mapper();

     virtual LEGlyphID unicodeToGlyph(LEUnicode32 unicode32) const;

 protected:

     CMAPFormat4Mapper() {};

 private:

     le_uint16       fEntrySelector;

     le_uint16       fRangeShift;

     const le_uint16 *fEndCodes;

     const le_uint16 *fStartCodes;

     const le_uint16 *fIdDelta;

     const le_uint16 *fIdRangeOffset;

 };

 class CMAPGroupMapper : public CMAPMapper

 {

 public:

     CMAPGroupMapper(const CMAPTable *cmap, const CMAPGroup *groups, le_uint32 nGroups);

     virtual ~CMAPGroupMapper();

     virtual LEGlyphID unicodeToGlyph(LEUnicode32 unicode32) const;

 protected:

     CMAPGroupMapper() {};

 private:

     le_int32 fPower;

     le_int32 fRangeOffset;

     const CMAPGroup *fGroups;

 };

 inline CMAPMapper::CMAPMapper(const CMAPTable *cmap)

     : fcmap(cmap)

 {

     // nothing else to do

 }

 inline CMAPMapper::~CMAPMapper()

 {

     LE_DELETE_ARRAY(fcmap);

 }

 #endif