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/*************************************************************************
** ImageToSVG.hpp **
** **
** This file is part of dvisvgm -- a fast DVI to SVG converter **
** Copyright (C) 2005-2018 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 (const std::string &fname, SVGOutputBase &out) : _fname(fname), _out(out) {}
virtual ~ImageToSVG () =default;
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();}
void setBgColor (const Color &color) override {}
void appendToPage(std::unique_ptr<XMLNode> &&node) override {_svg.appendToPage(std::move(node));}
void appendToDefs(std::unique_ptr<XMLNode> &&node) override {_svg.appendToDefs(std::move(node));}
void prependToPage(std::unique_ptr<XMLNode> &&node) override {_svg.prependToPage(std::move(node));}
void pushContextElement (std::unique_ptr<XMLElementNode> &&node) override {_svg.pushContextElement(std::move(node));}
void popContextElement () override {_svg.popContextElement();}
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
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