Anti-Grain Geometry - AGG (libagg)
2.5
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00001 //---------------------------------------------------------------------------- 00002 // Anti-Grain Geometry (AGG) - Version 2.5 00003 // A high quality rendering engine for C++ 00004 // Copyright (C) 2002-2006 Maxim Shemanarev 00005 // Contact: mcseem@antigrain.com 00006 // mcseemagg@yahoo.com 00007 // http://antigrain.com 00008 // 00009 // AGG is free software; you can redistribute it and/or 00010 // modify it under the terms of the GNU General Public License 00011 // as published by the Free Software Foundation; either version 2 00012 // of the License, or (at your option) any later version. 00013 // 00014 // AGG is distributed in the hope that it will be useful, 00015 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00017 // GNU General Public License for more details. 00018 // 00019 // You should have received a copy of the GNU General Public License 00020 // along with AGG; if not, write to the Free Software 00021 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 00022 // MA 02110-1301, USA. 00023 //---------------------------------------------------------------------------- 00024 00025 #ifndef AGG_CONV_UNCLOSE_POLYGON_INCLUDED 00026 #define AGG_CONV_UNCLOSE_POLYGON_INCLUDED 00027 00028 #include "agg_basics.h" 00029 00030 namespace agg 00031 { 00032 //====================================================conv_unclose_polygon 00033 template<class VertexSource> class conv_unclose_polygon 00034 { 00035 public: 00036 explicit conv_unclose_polygon(VertexSource& vs) : m_source(&vs) {} 00037 void attach(VertexSource& source) { m_source = &source; } 00038 00039 void rewind(unsigned path_id) 00040 { 00041 m_source->rewind(path_id); 00042 } 00043 00044 unsigned vertex(double* x, double* y) 00045 { 00046 unsigned cmd = m_source->vertex(x, y); 00047 if(is_end_poly(cmd)) cmd &= ~path_flags_close; 00048 return cmd; 00049 } 00050 00051 private: 00052 conv_unclose_polygon(const conv_unclose_polygon<VertexSource>&); 00053 const conv_unclose_polygon<VertexSource>& 00054 operator = (const conv_unclose_polygon<VertexSource>&); 00055 00056 VertexSource* m_source; 00057 }; 00058 00059 } 00060 00061 #endif