mapnik/plugins/input/ogr/ogr_datasource.hpp

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/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2007 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
*
*****************************************************************************/
//$Id$
#ifndef OGR_DATASOURCE_HPP
#define OGR_DATASOURCE_HPP
#include <mapnik/datasource.hpp>
#include <boost/shared_ptr.hpp>
#include <ogrsf_frmts.h>
using mapnik::datasource;
using mapnik::parameters;
using mapnik::query;
using mapnik::coord2d;
using mapnik::featureset_ptr;
using mapnik::layer_descriptor;
using mapnik::Envelope;
class ogr_datasource : public datasource
{
public:
ogr_datasource(parameters const& params);
virtual ~ogr_datasource ();
int type() const;
static std::string name();
featureset_ptr features(query const& q) const;
featureset_ptr features_at_point(coord2d const& pt) const;
Envelope<double> envelope() const;
layer_descriptor get_descriptor() const;
private:
static const std::string name_;
Envelope<double> extent_;
OGRDataSource* dataset_;
OGRLayer* layer_;
layer_descriptor desc_;
};
#endif // OGR_DATASOURCE_HPP