diff options
author | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
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committer | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
commit | e0c6872cf40896c7be36b11dcc744620f10adf1d (patch) | |
tree | 60335e10d2f4354b0674ec22d7b53f0f8abee672 /dviware/dvisvgm/src/Subfont.hpp |
Initial commit
Diffstat (limited to 'dviware/dvisvgm/src/Subfont.hpp')
-rw-r--r-- | dviware/dvisvgm/src/Subfont.hpp | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/dviware/dvisvgm/src/Subfont.hpp b/dviware/dvisvgm/src/Subfont.hpp new file mode 100644 index 0000000000..ca88520ea2 --- /dev/null +++ b/dviware/dvisvgm/src/Subfont.hpp @@ -0,0 +1,90 @@ +/************************************************************************* +** Subfont.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 SUBFONT_HPP +#define SUBFONT_HPP + +#include <istream> +#include <map> +#include <memory> +#include <sstream> +#include <string> +#include <vector> +#include "MessageException.hpp" + +class Subfont; + + +/** Represents a collection of subfont mappings as defined in a .sfd file, and + * encapsulates the evaluation of these files. */ +class SubfontDefinition { + using Subfonts = std::map<std::string, std::unique_ptr<Subfont>>; + public: + SubfontDefinition (const SubfontDefinition &sfd) =delete; + static SubfontDefinition* lookup (const std::string &name); +// int getIDs (std::vector<std::string> &ids) const; + const std::string& name() const {return _sfname;} + std::string filename() const {return _sfname+".sfd";} + Subfont* subfont (const std::string &id) const; + int subfonts (std::vector<Subfont*> &sfs) const; + const char* path () const; + + protected: + SubfontDefinition (std::string name, const char *fpath); + + private: + std::string _sfname; ///< name of subfont + Subfonts _subfonts; ///< all subfonts defined in the corresponding .sfd file +}; + + +/** Represents a single subfont mapping defined in a SubfontDefinition (.sfd file). */ +class Subfont { + friend class SubfontDefinition; + public: + Subfont (const Subfont &sf) =delete; + const std::string& id () const {return _id;} + uint16_t decode (unsigned char c); + + protected: + Subfont (SubfontDefinition &sfd, const std::string &id) : _sfd(sfd), _id(id), _mapping(0) {} + bool read (); + + private: + SubfontDefinition &_sfd; ///< SubfontDefinition where this Subfont belongs to + const std::string &_id; ///< id of this subfont as specified in the .sfd file + std::vector<uint16_t> _mapping; ///< the character mapping table with 256 entries +}; + + +class SubfontException : public MessageException { + public: + SubfontException (const std::string &msg, std::string fname, int lineno=0) + : MessageException(msg), _fname(std::move(fname)), _lineno(lineno) {} + + const char* filename () const {return _fname.c_str();} + int lineno () const {return _lineno;} + + private: + std::string _fname; + int _lineno; +}; + +#endif |