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78 lines
1.9 KiB
C++
78 lines
1.9 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) 2014 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 MAPNIK_FEATURESET_BUFFER_HPP
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#define MAPNIK_FEATURESET_BUFFER_HPP
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// mapnik
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#include <mapnik/featureset.hpp>
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#include <vector>
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namespace mapnik {
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class featureset_buffer : public Featureset
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{
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public:
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featureset_buffer()
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: features_(),
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pos_(),
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end_()
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{}
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virtual ~featureset_buffer() {}
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feature_ptr next()
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{
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if (pos_ != end_)
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{
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return *pos_++;
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}
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return feature_ptr();
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}
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void push(feature_ptr const& feature)
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{
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features_.push_back(feature);
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}
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void prepare()
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{
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pos_ = features_.begin();
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end_ = features_.end();
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}
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void clear()
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{
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features_.clear();
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}
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private:
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std::vector<feature_ptr> features_;
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std::vector<feature_ptr>::iterator pos_;
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std::vector<feature_ptr>::iterator end_;
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};
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}
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#endif // MAPNIK_FEATURESET_BUFFER_HPP
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