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Diffstat (limited to 'Build/source/texk/dvisvgm/dvisvgm-src/src/TFM.hpp')
-rw-r--r-- | Build/source/texk/dvisvgm/dvisvgm-src/src/TFM.hpp | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/Build/source/texk/dvisvgm/dvisvgm-src/src/TFM.hpp b/Build/source/texk/dvisvgm/dvisvgm-src/src/TFM.hpp new file mode 100644 index 00000000000..495b051eb89 --- /dev/null +++ b/Build/source/texk/dvisvgm/dvisvgm-src/src/TFM.hpp @@ -0,0 +1,74 @@ +/************************************************************************* +** TFM.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 TFM_HPP +#define TFM_HPP + +#include <istream> +#include <string> +#include <vector> +#include "FixWord.hpp" +#include "FontMetrics.hpp" +#include "StreamReader.hpp" + +class StreamReader; + +class TFM : public FontMetrics +{ + public: + TFM (std::istream &is); + double getCharWidth (int c) const override; + double getCharHeight (int c) const override; + double getCharDepth (int c) const override; + double getItalicCorr (int c) const override; + double getDesignSize () const override {return _designSize;} + double getSpace () const override; + double getSpaceStretch () const override; + double getSpaceShrink () const override; + double getQuad () const override; + double getAscent () const override {return double(_ascent)*_designSize;} + double getDescent () const override {return double(_descent)*_designSize;} + bool verticalLayout () const override {return false;} + uint32_t getChecksum () const override {return _checksum;} + uint16_t firstChar () const override {return _firstChar;} + uint16_t lastChar () const override {return _lastChar;} + + protected: + TFM () : _checksum(0), _firstChar(0), _lastChar(0), _designSize(0), _params(7) {} + void readHeader (StreamReader &reader); + void readTables (StreamReader &reader, int nw, int nh, int nd, int ni); + void readParameters (StreamReader &reader, int np); + virtual int charIndex (int c) const; + void setCharRange (int firstchar, int lastchar) {_firstChar=firstchar; _lastChar=lastchar;} + + private: + uint32_t _checksum; + uint16_t _firstChar, _lastChar; + double _designSize; ///< design size of the font in PS points (72bp = 1in) + std::vector<uint32_t> _charInfoTable; + std::vector<FixWord> _widthTable; ///< character widths in design size units + std::vector<FixWord> _heightTable; ///< character height in design size units + std::vector<FixWord> _depthTable; ///< character depth in design size units + std::vector<FixWord> _italicTable; ///< italic corrections in design size units + std::vector<FixWord> _params; ///< values of the TFM's param section + FixWord _ascent, _descent; ///< max. height and depth +}; + +#endif |