mapnik/plugins/input/ogr/ogr_featureset.hpp

62 lines
2 KiB
C++

/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2014 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 OGR_FEATURESET_HPP
#define OGR_FEATURESET_HPP
// mapnik
#include <mapnik/feature.hpp>
#include <mapnik/datasource.hpp>
#include <mapnik/unicode.hpp>
#include <mapnik/geom_util.hpp>
// ogr
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wshadow"
#include <ogrsf_frmts.h>
#pragma GCC diagnostic pop
class ogr_featureset : public mapnik::Featureset
{
public:
ogr_featureset(mapnik::context_ptr const& ctx,
OGRLayer & layer,
OGRGeometry & extent,
std::string const& encoding);
ogr_featureset(mapnik::context_ptr const& ctx,
OGRLayer & layer,
mapnik::box2d<double> const& extent,
std::string const& encoding);
virtual ~ogr_featureset();
mapnik::feature_ptr next();
private:
mapnik::context_ptr ctx_;
OGRLayer& layer_;
OGRFeatureDefn* layerdef_;
const std::unique_ptr<mapnik::transcoder> tr_;
const char* fidcolumn_;
mutable int count_;
};
#endif // OGR_FEATURESET_HPP