/************************************************************************* ** PSFilter.hpp ** ** ** ** This file is part of dvisvgm -- a fast DVI to SVG converter ** ** Copyright (C) 2005-2021 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 PSFILTER_HPP #define PSFILTER_HPP class PSInterpreter; class PSFilter { public: explicit PSFilter (PSInterpreter &psi) : _psi(psi) {} virtual ~PSFilter () =default; virtual void execute (const char *code, size_t len) =0; virtual bool active () const =0; protected: PSInterpreter& psInterpreter () {return _psi;} private: PSInterpreter &_psi; }; #endif