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/*****************************************************************************
*
* 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_DATASOURCE_HPP
#define OSM_DATASOURCE_HPP
// mapnik
#include <mapnik/datasource.hpp>
#include <mapnik/params.hpp>
#include <mapnik/query.hpp>
#include <mapnik/feature.hpp>
#include <mapnik/box2d.hpp>
#include <mapnik/coord.hpp>
#include <mapnik/feature_layer_desc.hpp>
// boost
#include <boost/optional.hpp>
#include <boost/shared_ptr.hpp>
// stl
#include <vector>
#include <string>
#include "osm.h"
using mapnik::datasource;
using mapnik::parameters;
using mapnik::query;
using mapnik::featureset_ptr;
using mapnik::layer_descriptor;
using mapnik::coord2d;
using mapnik::box2d;
class osm_datasource : public datasource
{
public:
osm_datasource(const parameters& params, bool bind = true);
virtual ~osm_datasource();
mapnik::datasource::datasource_t type() const;
static const char * name();
featureset_ptr features(const query& q) const;
featureset_ptr features_at_point(coord2d const& pt, double tol = 0) const;
box2d<double> envelope() const;
boost::optional<mapnik::datasource::geometry_t> get_geometry_type() const;
layer_descriptor get_descriptor() const;
void bind() const;
private:
mutable box2d<double> extent_;
mutable osm_dataset* osm_data_;
mapnik::datasource::datasource_t type_;
mutable layer_descriptor desc_;
};
#endif // OSM_DATASOURCE_HPP
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