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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /dviware/dvisvgm/src/ImageToSVG.hpp
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+/*************************************************************************
+** ImageToSVG.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 IMAGETOSVG_HPP
+#define IMAGETOSVG_HPP
+
+#include <istream>
+#include <memory>
+#include <string>
+#include "PsSpecialHandler.hpp"
+#include "SpecialActions.hpp"
+#include "SVGTree.hpp"
+
+struct SVGOutputBase;
+
+class ImageToSVG : protected SpecialActions {
+ public:
+ ImageToSVG (std::string fname, SVGOutputBase &out) : _fname(std::move(fname)), _out(out) {}
+ void convert (int pageno);
+ void convert (int firstPage, int lastPage, std::pair<int,int> *pageinfo);
+ void convert (const std::string &rangestr, std::pair<int,int> *pageinfo);
+ void setPageTransformation (const std::string &transCmds) {_transCmds = transCmds;}
+// void setPageSize (const std::string &name);
+ std::string filename () const {return _fname;}
+ PSInterpreter& psInterpreter () {return _psHandler.psInterpreter();}
+ virtual bool isSinglePageFormat () const =0;
+ virtual int totalPageCount () =0;
+
+ protected:
+ void checkGSAndFileFormat ();
+ Matrix getUserMatrix (const BoundingBox &bbox) const;
+ virtual std::string imageFormat () const =0;
+ virtual bool imageIsValid () const =0;
+ virtual BoundingBox imageBBox () const =0;
+ virtual std::string psSpecialCmd () const =0;
+ // implement abstract base class SpecialActions
+ double getX () const override {return _x;}
+ double getY () const override {return _y;}
+ void setX (double x) override {_x = x; _svg.setX(x);}
+ void setY (double y) override {_y = y; _svg.setY(y);}
+ void finishLine () override {}
+ void setColor (const Color &color) override {_svg.setColor(color);}
+ Color getColor () const override {return _svg.getColor();}
+ void setMatrix (const Matrix &m) override {_svg.setMatrix(m);}
+ const Matrix& getMatrix () const override {return _svg.getMatrix();}
+ const SVGTree& svgTree () const override {return _svg;}
+ void setBgColor (const Color &color) override {}
+ void embed (const BoundingBox &bbox) override {_bbox.embed(bbox);}
+ void embed (const DPair &p, double r=0) override {if (r==0) _bbox.embed(p); else _bbox.embed(p, r);}
+ void progress (const char *id) override;
+ unsigned getCurrentPageNumber() const override {return 0;}
+ BoundingBox& bbox () override {return _bbox;}
+ BoundingBox& bbox (const std::string &name, bool reset=false) override {return _bbox;}
+ std::string getSVGFilename (unsigned pageno) const override;
+ std::string getBBoxFormatString () const override {return "";}
+
+ private:
+ std::string _fname; ///< name of image file
+ SVGTree _svg;
+ SVGOutputBase &_out;
+ double _x=0, _y=0;
+ BoundingBox _bbox;
+ PsSpecialHandler _psHandler;
+ bool _haveGS=false; ///< true if Ghostscript is available
+ std::string _transCmds; ///< transformation commands
+};
+
+#endif