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/*************************************************************************
** FontEncoding.h **
** **
** This file is part of dvisvgm -- the DVI to SVG converter **
** Copyright (C) 2005-2015 Martin Gieseking <martin.gieseking@uos.de> **
** **
** This program is free software; you can redistribute it and/or **
** modify it under the terms of the GNU General Public License as **
** published by the Free Software Foundation; either version 3 of **
** the License, or (at your option) any later version. **
** **
** This program is distributed in the hope that it will be useful, but **
** WITHOUT ANY WARRANTY; without even the implied warranty of **
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the **
** GNU General Public License for more details. **
** **
** You should have received a copy of the GNU General Public License **
** along with this program; if not, see <http://www.gnu.org/licenses/>. **
*************************************************************************/
#ifndef DVISVGM_FONTENCODING_H
#define DVISVGM_FONTENCODING_H
#include <string>
#include "Character.h"
#include "types.h"
struct CharMapID;
class PhysicalFont;
struct FontEncoding
{
virtual ~FontEncoding () {}
virtual Character decode (UInt32 c) const =0;
virtual bool mapsToCharIndex () const =0;
virtual const FontEncoding* findCompatibleBaseFontMap (const PhysicalFont *font, CharMapID &charmapID) const {return 0;}
static FontEncoding* encoding (const std::string &encname);
};
struct NamedFontEncoding : public FontEncoding
{
virtual const char* name () const =0;
virtual const char* path () const =0;
};
class FontEncodingPair : public FontEncoding
{
public:
FontEncodingPair (const FontEncoding *enc1) : _enc1(enc1), _enc2(0) {}
FontEncodingPair (const FontEncoding *enc1, const FontEncoding *enc2) : _enc1(enc1), _enc2(enc2) {}
Character decode (UInt32 c) const;
bool mapsToCharIndex () const;
const FontEncoding* findCompatibleBaseFontMap (const PhysicalFont *font, CharMapID &charmapID) const;
const FontEncoding* enc1 () const {return _enc1;}
const FontEncoding* enc2 () const {return _enc2;}
void assign (const FontEncoding *enc);
private:
const FontEncoding *_enc1, *_enc2;
};
#endif
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