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/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2006 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: raster_datasource.hh 44 2005-04-22 18:53:54Z pavlenko $
#ifndef RASTER_DATASOURCE_HPP
#define RASTER_DATASOURCE_HPP
// mapnik
#include <mapnik/box2d.hpp>
#include <mapnik/feature.hpp>
#include <mapnik/datasource.hpp>
class raster_datasource : public mapnik::datasource
{
private:
mapnik::layer_descriptor desc_;
std::string filename_;
std::string format_;
mapnik::box2d<double> extent_;
bool extent_initialized_;
mutable unsigned width_;
mutable unsigned height_;
public:
raster_datasource(const mapnik::parameters& params, bool bind=true);
virtual ~raster_datasource();
int type() const;
static std::string name();
mapnik::featureset_ptr features(const mapnik::query& q) const;
mapnik::featureset_ptr features_at_point(mapnik::coord2d const& pt) const;
mapnik::box2d<double> envelope() const;
mapnik::layer_descriptor get_descriptor() const;
void bind() const;
private:
//no copying
raster_datasource(const raster_datasource&);
raster_datasource& operator=(const raster_datasource&);
};
#endif //RASTER_DATASOURCE_HPP
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