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Diffstat (limited to 'Build/source/texk/dvisvgm/dvisvgm-src/src/EmSpecialHandler.hpp')
-rw-r--r-- | Build/source/texk/dvisvgm/dvisvgm-src/src/EmSpecialHandler.hpp | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/Build/source/texk/dvisvgm/dvisvgm-src/src/EmSpecialHandler.hpp b/Build/source/texk/dvisvgm/dvisvgm-src/src/EmSpecialHandler.hpp new file mode 100644 index 00000000000..c9febab3425 --- /dev/null +++ b/Build/source/texk/dvisvgm/dvisvgm-src/src/EmSpecialHandler.hpp @@ -0,0 +1,63 @@ +/************************************************************************* +** EmSpecialHandler.hpp ** +** ** +** This file is part of dvisvgm -- a fast DVI to SVG converter ** +** Copyright (C) 2005-2017 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 EMSPECIALHANDLER_HPP +#define EMSPECIALHANDLER_HPP + +#include <list> +#include <map> +#include "Pair.hpp" +#include "SpecialHandler.hpp" + +class InputReader; +class SpecialActions; + +class EmSpecialHandler : public SpecialHandler, public DVIEndPageListener +{ + struct Line { + Line (int pp1, int pp2, char cc1, char cc2, double w) : p1(pp1), p2(pp2), c1(cc1), c2(cc2), width(w) {} + int p1, p2; ///< point numbers of line ends + char c1, c2; ///< cut type of line ends (h, v or p) + double width; ///< line width + }; + + public: + EmSpecialHandler (); + const char* name () const override {return "em";} + const char* info () const override {return "line drawing statements of the emTeX special set";} + const char** prefixes () const override; + bool process (const char *prefix, std::istream &in, SpecialActions &actions) override; + + protected: + void dviEndPage (unsigned pageno, SpecialActions &actions) override; + void linewidth (InputReader &ir, SpecialActions &actions); + void moveto (InputReader &ir, SpecialActions &actions); + void lineto (InputReader &ir, SpecialActions &actions); + void line (InputReader &ir, SpecialActions &actions); + void point (InputReader &ir, SpecialActions &actions); + + private: + std::map<int, DPair> _points; ///< points defined by special em:point + std::list<Line> _lines; ///< list of lines with undefined end points + double _linewidth; ///< global line width + DPair _pos; ///< current position of "graphic cursor" +}; + +#endif |