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/***************************************************************************
*
* Copyright (C) 1998-2006, International Business Machines
* Corporation and others. All Rights Reserved.
*
************************************************************************/
#ifndef __CMAPS_H
#define __CMAPS_H
#include "layout/LETypes.h"
#include "letest.h"
#include "sfnt.h"
HB_BEGIN_VISIBILITY
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()
{
}
HB_END_VISIBILITY
#endif
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