/************************************************************************* ** PathClipper.h ** ** ** ** This file is part of dvisvgm -- the DVI to SVG converter ** ** Copyright (C) 2005-2015 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 DVISVGM_PATHCLIPPER_H #define DVISVGM_PATHCLIPPER_H #include #include #include #include "Bezier.h" #include "GraphicsPath.h" #include "MessageException.h" using ClipperLib::IntPoint; class PathClipper { public: typedef GraphicsPath CurvedPath; public: PathClipper () : _numLines(0) {} void intersect (const CurvedPath &p1, const CurvedPath &p2, CurvedPath &result); protected: void flatten (const CurvedPath &gp, ClipperLib::Paths &polygons); // void divide (IntPoint &p1, IntPoint &p2, IntPoint &ip); void reconstruct (const ClipperLib::Path &polygon, CurvedPath &path); void reconstruct (const ClipperLib::Paths &polygons, CurvedPath &path); static void callback (IntPoint &e1bot, IntPoint &e1top, IntPoint &e2bot, IntPoint &e2top, IntPoint &ip); private: std::vector _curves; int _numLines; ///< negative number of straight line segments in path been processed }; #endif