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+/*************************************************************************
+** SpecialActions.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 SPECIALACTIONS_HPP
+#define SPECIALACTIONS_HPP
+
+#include <string>
+#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 void getPageTransform (Matrix &matrix) const =0;
+ virtual void setBgColor (const Color &color) =0;
+ virtual void appendToPage (XMLNode *node) =0;
+ virtual void appendToDefs (XMLNode *node) =0;
+ virtual void prependToPage (XMLNode *node) =0;
+ virtual void pushContextElement (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 getPageTransform (Matrix &matrix) const override {}
+ void appendToPage (XMLNode *node) override {}
+ void appendToDefs (XMLNode *node) override {}
+ void prependToPage (XMLNode *node) override {}
+ void pushContextElement (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