/***************************************************************************** * * This file is part of Mapnik (c++ mapping toolkit) * * Copyright (C) 2011 Artem Pavlenko * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * *****************************************************************************/ #ifndef OSM_FS_HH #define OSM_FS_HH // stl #include <set> // boost #include <boost/scoped_ptr.hpp> // mapnik #include <mapnik/geom_util.hpp> #include <mapnik/feature.hpp> #include <mapnik/query.hpp> #include <mapnik/unicode.hpp> #include <mapnik/datasource.hpp> #include "osm.h" using mapnik::Featureset; using mapnik::box2d; using mapnik::feature_ptr; using mapnik::transcoder; template <typename filterT> class osm_featureset : public Featureset { public: osm_featureset(const filterT& filter, osm_dataset* dataset, const std::set<std::string>& attribute_names, std::string const& encoding); virtual ~osm_featureset(); feature_ptr next(); private: filterT filter_; box2d<double> query_ext_; boost::scoped_ptr<transcoder> tr_; std::vector<int> attr_ids_; mutable box2d<double> feature_ext_; mutable int total_geom_size; mutable int feature_id_; osm_dataset *dataset_; std::set<std::string> attribute_names_; mapnik::context_ptr ctx_; // no copying osm_featureset(const osm_featureset&); const osm_featureset& operator=(const osm_featureset&); }; #endif // OSM_FS_HH