mapnik/plugins/input/osm/osm_featureset.hpp

72 lines
2.1 KiB
C++

/*****************************************************************************
*
* 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;
osm_dataset *dataset_;
std::set<std::string> attribute_names_;
mapnik::context_ptr ctx_;
osm_featureset(const osm_featureset&);
const osm_featureset& operator=(const osm_featureset&);
};
#endif // OSM_FS_HH