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C++ API DOCUMENTATION |
00001 /***************************************************************************** 00002 * 00003 * This file is part of Mapnik (c++ mapping toolkit) 00004 * 00005 * Copyright (C) 2006 Artem Pavlenko 00006 * 00007 * This library is free software; you can redistribute it and/or 00008 * modify it under the terms of the GNU Lesser General Public 00009 * License as published by the Free Software Foundation; either 00010 * version 2.1 of the License, or (at your option) any later version. 00011 * 00012 * This library is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00015 * Lesser General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU Lesser General Public 00018 * License along with this library; if not, write to the Free Software 00019 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00020 * 00021 *****************************************************************************/ 00022 00023 //$Id$ 00024 00025 #ifndef MEMORY_DATASOURCE_HPP 00026 #define MEMORY_DATASOURCE_HPP 00027 00028 #include <mapnik/datasource.hpp> 00029 #include <vector> 00030 00031 namespace mapnik { 00032 00033 class memory_datasource : public datasource 00034 { 00035 friend class memory_featureset; 00036 public: 00037 memory_datasource(); 00038 virtual ~memory_datasource(); 00039 void push(feature_ptr feature); 00040 int type() const; 00041 featureset_ptr features(const query& q) const; 00042 featureset_ptr features_at_point(coord2d const& pt) const; 00043 Envelope<double> envelope() const; 00044 layer_descriptor get_descriptor() const; 00045 size_t size() const; 00046 private: 00047 std::vector<mapnik::feature_ptr> features_; 00048 }; 00049 } 00050 00051 #endif // MEMORY_DATASOURCE_HPP