108 lines
2.3 KiB
C++
108 lines
2.3 KiB
C++
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/* This file is part of Mapnik (c++ mapping toolkit)
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* Copyright (C) 2005 Artem Pavlenko
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*
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* Mapnik is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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//$Id$
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#ifndef QUERY_HPP
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#define QUERY_HPP
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#include <set>
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#include <limits>
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#include "filter.hpp"
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#include "envelope.hpp"
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#include "feature.hpp"
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namespace mapnik
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{
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class query
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{
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private:
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Envelope<double> bbox_;
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filter<Feature>* filter_;
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std::set<std::string> names_;
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public:
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query()
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: bbox_(std::numeric_limits<double>::min(),
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std::numeric_limits<double>::min(),
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std::numeric_limits<double>::max(),
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std::numeric_limits<double>::max()),
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filter_(new null_filter<Feature>)
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{}
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query(const Envelope<double>& bbox)
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: bbox_(bbox),
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filter_(new null_filter<Feature>)
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{}
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query(const Envelope<double>& bbox,const filter<Feature>& f)
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: bbox_(bbox),
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filter_(f.clone())
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{}
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query(const query& other)
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: bbox_(other.bbox_),
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filter_(other.filter_->clone())
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{}
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query& operator=(const query& other)
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{
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filter<Feature>* tmp=other.filter_->clone();
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delete filter_;
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filter_=tmp;
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bbox_=other.bbox_;
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names_=other.names_;
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return *this;
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}
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const filter<Feature>* get_filter() const
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{
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return filter_;
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}
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const Envelope<double>& get_bbox() const
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{
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return bbox_;
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}
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void set_filter(const filter<Feature>& f)
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{
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filter<Feature>* tmp=f.clone();
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delete filter_;
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filter_=tmp;
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}
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void add_property_name(const std::string& name)
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{
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names_.insert(name);
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}
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const std::set<std::string>& property_names() const
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{
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return names_;
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}
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~query()
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{
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delete filter_;
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}
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};
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}
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#endif //QUERY_HPP
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