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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /dviware/dvisvgm/src/FontEncoding.hpp
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+/*************************************************************************
+** FontEncoding.hpp **
+** **
+** This file is part of dvisvgm -- a fast DVI to SVG converter **
+** Copyright (C) 2005-2019 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 FONTENCODING_HPP
+#define FONTENCODING_HPP
+
+#include <string>
+#include "Character.hpp"
+
+
+struct CharMapID;
+class PhysicalFont;
+
+struct FontEncoding {
+ virtual ~FontEncoding () =default;
+ virtual Character decode (uint32_t c) const =0;
+ virtual bool mapsToCharIndex () const =0;
+ virtual const FontEncoding* findCompatibleBaseFontMap (const PhysicalFont *font, CharMapID &charmapID) const {return nullptr;}
+ 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:
+ explicit FontEncodingPair (const FontEncoding *enc1) : _enc1(enc1), _enc2(nullptr) {}
+ FontEncodingPair (const FontEncoding *enc1, const FontEncoding *enc2) : _enc1(enc1), _enc2(enc2) {}
+ Character decode (uint32_t c) const override;
+ bool mapsToCharIndex () const override;
+ const FontEncoding* findCompatibleBaseFontMap (const PhysicalFont *font, CharMapID &charmapID) const override;
+ const FontEncoding* enc1 () const {return _enc1;}
+ const FontEncoding* enc2 () const {return _enc2;}
+ void assign (const FontEncoding *enc);
+
+ private:
+ const FontEncoding *_enc1, *_enc2;
+};
+
+#endif