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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 SHAPE_FEATURESET_HPP
#define SHAPE_FEATURESET_HPP
//mapnik
#include <mapnik/datasource.hpp>
#include <mapnik/geom_util.hpp>
#include <mapnik/feature.hpp>
#include <mapnik/unicode.hpp>
#include <mapnik/value_types.hpp>
#include "shape_io.hpp"
//boost
#include <boost/scoped_ptr.hpp>
#include <boost/utility.hpp>
using mapnik::Featureset;
using mapnik::box2d;
using mapnik::feature_ptr;
using mapnik::transcoder;
using mapnik::context_ptr;
template <typename filterT>
class shape_featureset : public Featureset
{
public:
shape_featureset(filterT const& filter,
std::string const& shape_file,
std::set<std::string> const& attribute_names,
std::string const& encoding,
long file_length,
int row_limit);
virtual ~shape_featureset();
feature_ptr next();
private:
filterT filter_;
shape_io shape_;
box2d<double> query_ext_;
mutable box2d<double> feature_bbox_;
boost::scoped_ptr<transcoder> tr_;
long file_length_;
std::vector<int> attr_ids_;
mapnik::value_integer row_limit_;
mutable int count_;
context_ptr ctx_;
};
#endif //SHAPE_FEATURESET_HPP
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