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Diffstat (limited to 'dviware/dvisvgm/src/DVIToSVG.hpp')
| -rw-r--r-- | dviware/dvisvgm/src/DVIToSVG.hpp | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/dviware/dvisvgm/src/DVIToSVG.hpp b/dviware/dvisvgm/src/DVIToSVG.hpp new file mode 100644 index 0000000000..9463f78736 --- /dev/null +++ b/dviware/dvisvgm/src/DVIToSVG.hpp @@ -0,0 +1,112 @@ +/************************************************************************* +** DVIToSVG.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 DVITOSVG_HPP +#define DVITOSVG_HPP + +#include <set> +#include <string> +#include <utility> +#include "DVIReader.hpp" +#include "SVGTree.hpp" + +struct DVIActions; +struct SVGOutputBase; +class HashFunction; + +class DVIToSVG : public DVIReader { + public: + class HashSettings { + public: + enum Parameter {P_LIST, P_REPLACE}; + void setParameters (const std::string ¶mstr); + void setOptionHash (const std::string &optHash) {_optHash = optHash;} + std::string algorithm () const {return _algo;} + std::string optionsHash () const {return _optHash;} + bool isSet (Parameter param) {return _params.find(param) != _params.end();} + + private: + std::string _algo; + std::string _optHash; + std::set<Parameter> _params; + }; + + public: + explicit DVIToSVG (std::istream &is, SVGOutputBase &out); + DVIToSVG (const DVIToSVG&) =delete; + void convert (const std::string &range, std::pair<int,int> *pageinfo=nullptr); + void setPageSize (const std::string &format) {_bboxFormatString = format;} + void setPageTransformation (const std::string &cmds) {_transCmds = cmds;} + Matrix getPageTransformation () const override; + void translateToX (double x) override {_tx = x-dviState().h-_tx;} + void translateToY (double y) override {_ty = y-dviState().v-_ty;} + double getXPos() const override {return dviState().h+_tx;} + double getYPos() const override {return dviState().v+_ty;} + void finishLine () override {_prevYPos = std::numeric_limits<double>::min();} + void listHashes (const std::string &rangestr, std::ostream &os); + + std::string getSVGFilename (unsigned pageno) const; + std::string getUserBBoxString () const {return _bboxFormatString;} + static void setProcessSpecials (const char *ignorelist=nullptr, bool pswarning=false); + + public: + static bool COMPUTE_PROGRESS; ///< if true, an action to handle the progress ratio of a page is triggered + static char TRACE_MODE; + static HashSettings PAGE_HASH_SETTINGS; + + protected: + void convert (unsigned firstPage, unsigned lastPage, HashFunction *hashFunc); + int executeCommand () override; + void enterBeginPage (unsigned pageno, const std::vector<int32_t> &c); + void leaveEndPage (unsigned pageno); + void embedFonts (XMLElement *svgElement); + void moveRight (double dx, MoveMode mode) override; + void moveDown (double dy, MoveMode mode) override; + + void dviPost (uint16_t stdepth, uint16_t pages, uint32_t pw, uint32_t ph, uint32_t mag, uint32_t num, uint32_t den, uint32_t lbopofs) override; + void dviBop (const std::vector<int32_t> &c, int32_t prevBopOffset) override; + void dviEop () override; + void dviSetChar0 (uint32_t c, const Font *font) override; + void dviSetChar (uint32_t c, const Font *font) override; + void dviPutChar (uint32_t c, const Font *font) override; + void dviSetRule (double h, double w) override; + void dviPutRule (double h, double w) override; + void dviPop () override; + void dviFontNum (uint32_t fontnum, SetFontMode mode, const Font *font) override; + void dviDir (WritingMode dir) override; + void dviXXX (const std::string &str) override; + void dviXGlyphArray (std::vector<double> &dx, std::vector<double> &dy, std::vector<uint16_t> &glyphs, const Font &font) override; + void dviXGlyphString (std::vector<double> &dx, std::vector<uint16_t> &glyphs, const Font &font) override; + void dviXTextAndGlyphs (std::vector<double> &dx, std::vector<double> &dy, std::vector<uint16_t> &chars, std::vector<uint16_t> &glyphs, const Font &font) override; + + private: + SVGTree _svg; + SVGOutputBase &_out; + std::unique_ptr<DVIActions> _actions; + std::string _bboxFormatString; ///< bounding box size/format set by the user + std::string _transCmds; ///< page transformation commands set by the user + double _pageHeight, _pageWidth; ///< global page height and width stored in the postamble + double _tx, _ty; ///< translation of cursor position + double _prevXPos, _prevYPos; ///< previous cursor position + WritingMode _prevWritingMode; ///< previous writing mode + std::streampos _pageByte; ///< position of the stream pointer relative to the preceding bop (in bytes) +}; + +#endif |