70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2011 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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#ifndef SHAPE_HPP
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#define SHAPE_HPP
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// mapnik
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#include <mapnik/datasource.hpp>
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#include <mapnik/box2d.hpp>
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// boost
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#include <boost/shared_ptr.hpp>
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#include "shape_io.hpp"
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using mapnik::datasource;
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using mapnik::parameters;
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using mapnik::query;
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using mapnik::featureset_ptr;
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using mapnik::layer_descriptor;
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using mapnik::coord2d;
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class shape_datasource : public datasource
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{
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public:
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shape_datasource(const parameters ¶ms, bool bind=true);
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virtual ~shape_datasource();
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datasource::datasource_t type() const;
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static const char * name();
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featureset_ptr features(const query& q) const;
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featureset_ptr features_at_point(coord2d const& pt) const;
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box2d<double> envelope() const;
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boost::optional<mapnik::datasource::geometry_t> get_geometry_type() const;
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layer_descriptor get_descriptor() const;
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void bind() const;
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private:
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void init(shape_io& shape) const;
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datasource::datasource_t type_;
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std::string shape_name_;
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mutable boost::shared_ptr<shape_io> shape_;
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mutable shape_io::shapeType shape_type_;
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mutable long file_length_;
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mutable box2d<double> extent_;
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mutable bool indexed_;
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const int row_limit_;
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mutable layer_descriptor desc_;
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};
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#endif //SHAPE_HPP
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