/************************************************************************* ** PSPreviewFilter.hpp ** ** ** ** This file is part of dvisvgm -- a fast DVI to SVG converter ** ** Copyright (C) 2005-2020 Martin Gieseking ** ** ** ** 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 . ** *************************************************************************/ #ifndef PSPREVIEWFILTER_HPP #define PSPREVIEWFILTER_HPP #include #include #include "BoundingBox.hpp" #include "PSFilter.hpp" class SpecialActions; class PSPreviewFilter : public PSFilter { public: explicit PSPreviewFilter (PSInterpreter &psi) : PSFilter(psi) {} void activate (); void execute (const char *code, size_t len) override; bool active () const override {return _active;} std::string version () const {return _version;} bool tightpage () const {return _tightpage;} void setDviScaleFactor (double dvi2bp) {_dvi2bp = dvi2bp;} void assignBorders (BoundingBox &bbox) const; bool getBoundingBox (BoundingBox &bbox) const; double height () const; double depth () const; double width () const; private: std::string _version; ///< version string of preview package bool _active=false; ///< true if filter is active bool _tightpage=false; ///< true if tightpage option was given double _dvi2bp=1.0/65536.0; ///< factor to convert dvi units to PS points std::vector _boxExtents; ///< bounding box data set by the preview package (in DVI units) }; #endif