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/*************************************************************************
** SpecialActions.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 SPECIALACTIONS_HPP
#define SPECIALACTIONS_HPP
#include <string>
#include <memory>
#include "BoundingBox.hpp"
#include "Color.hpp"
#include "Matrix.hpp"
class XMLNode;
class XMLElementNode;
class SpecialActions {
public:
virtual ~SpecialActions () =default;
virtual double getX () const =0;
virtual double getY () const =0;
virtual void setX (double x) =0;
virtual void setY (double y) =0;
virtual void finishLine () =0;
virtual void setColor (const Color &color) =0;
virtual Color getColor () const =0;
virtual void setMatrix (const Matrix &m) =0;
virtual const Matrix& getMatrix () const =0;
virtual Matrix getPageTransformation () const {return Matrix(1);}
virtual void setBgColor (const Color &color) =0;
virtual void appendToPage(std::unique_ptr<XMLNode> &&node) =0;
virtual void appendToDefs(std::unique_ptr<XMLNode> &&node) =0;
virtual void prependToPage(std::unique_ptr<XMLNode> &&node) =0;
virtual void pushContextElement (std::unique_ptr<XMLElementNode> &&node) =0;
virtual void popContextElement () =0;
virtual BoundingBox& bbox () =0;
virtual BoundingBox& bbox (const std::string &name, bool reset=false) =0;
virtual void embed (const BoundingBox &bbox) =0;
virtual void embed (const DPair &p, double r=0) =0;
virtual unsigned getCurrentPageNumber () const =0;
virtual std::string getSVGFilename (unsigned pageno) const =0;
virtual std::string getBBoxFormatString () const =0;
virtual void progress (const char *id) {}
virtual int getDVIStackDepth () const {return 0;}
static double PROGRESSBAR_DELAY; ///< progress bar doesn't appear before this time has elapsed (in sec)
};
class EmptySpecialActions : public SpecialActions {
public:
double getX () const override {return 0;}
double getY () const override {return 0;}
void setX (double x) override {}
void setY (double y) override {}
void finishLine () override {}
void setColor (const Color &color) override {}
void setBgColor (const Color &color) override {}
Color getColor () const override {return Color::BLACK;}
void setMatrix (const Matrix &m) override {}
const Matrix& getMatrix () const override {return _matrix;}
void appendToPage(std::unique_ptr<XMLNode> &&node) override {}
void appendToDefs(std::unique_ptr<XMLNode> &&node) override {}
void prependToPage(std::unique_ptr<XMLNode> &&node) override {}
void pushContextElement (std::unique_ptr<XMLElementNode> &&node) override {}
void popContextElement () override {}
BoundingBox& bbox () override {return _bbox;}
BoundingBox& bbox (const std::string &name, bool reset=false) override {return _bbox;}
void embed (const BoundingBox &bbox) override {}
void embed (const DPair &p, double r=0) override {}
unsigned getCurrentPageNumber() const override {return 0;}
std::string getSVGFilename (unsigned pageno) const override {return "";}
std::string getBBoxFormatString () const override {return "";}
private:
BoundingBox _bbox;
Matrix _matrix;
};
#endif
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