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+/*************************************************************************
+** CMap.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 CMAP_HPP
+#define CMAP_HPP
+
+#include <algorithm>
+#include <ostream>
+#include <vector>
+#include "FontEncoding.hpp"
+#include "RangeMap.hpp"
+
+
+struct CMap : public NamedFontEncoding {
+ virtual bool vertical () const =0;
+ virtual bool mapsToCID () const =0;
+ virtual uint32_t cid (uint32_t c) const =0;
+ virtual uint32_t bfcode (uint32_t cid) const =0;
+ virtual std::string getROString () const =0;
+ const char* path () const override;
+ const FontEncoding* findCompatibleBaseFontMap (const PhysicalFont *font, CharMapID &charmapID) const override;
+ bool mapsToCharIndex () const override {return mapsToCID();}
+
+ Character decode (uint32_t c) const override {
+ if (mapsToCID())
+ return Character(Character::INDEX, cid(c));
+ return Character(Character::CHRCODE, bfcode(c));
+ }
+};
+
+
+struct IdentityCMap : public CMap {
+ uint32_t cid (uint32_t c) const override {return c;}
+ uint32_t bfcode (uint32_t cid) const override {return 0;}
+ std::string getROString () const override {return "Adobe-Identity";}
+ bool mapsToCID() const override {return true;}
+};
+
+
+struct IdentityHCMap : public IdentityCMap {
+ bool vertical () const override {return false;}
+ const char* name () const override {return "Identity-H";}
+};
+
+
+struct IdentityVCMap : public IdentityCMap {
+ bool vertical () const override {return true;}
+ const char* name () const override {return "Identity-V";}
+};
+
+
+struct UnicodeCMap : public CMap {
+ bool vertical () const override {return false;}
+ const char* name () const override {return "unicode";}
+ bool mapsToCID () const override {return false;}
+ const char* path () const override {return nullptr;}
+ uint32_t cid (uint32_t c) const override {return c;}
+ uint32_t bfcode (uint32_t cid) const override {return cid;}
+ std::string getROString () const override {return "";}
+};
+
+
+class SegmentedCMap : public CMap {
+ friend class CMapReader;
+
+ public:
+ explicit SegmentedCMap (std::string fname) : _filename(std::move(fname)) {}
+ const char* name () const override {return _filename.c_str();}
+ uint32_t cid (uint32_t c) const override;
+ uint32_t bfcode (uint32_t cid) const override;
+ void addCIDRange (uint32_t first, uint32_t last, uint32_t cid) {_cidranges.addRange(first, last, cid);}
+ void addBFRange (uint32_t first, uint32_t last, uint32_t chrcode) {_bfranges.addRange(first, last, chrcode);}
+ void write (std::ostream &os) const;
+ bool vertical () const override {return _vertical;}
+ bool mapsToCID () const override {return _mapsToCID;}
+ size_t numCIDRanges () const {return _cidranges.numRanges();}
+ size_t numBFRanges () const {return _bfranges.numRanges();}
+ std::string getROString () const override;
+
+ private:
+ std::string _filename;
+ std::string _registry;
+ std::string _ordering;
+ CMap *_basemap = nullptr;
+ bool _vertical = false;
+ bool _mapsToCID = true; // true: chrcode->CID, false: CID->charcode
+ RangeMap _cidranges;
+ RangeMap _bfranges;
+};
+
+#endif