92 lines
2.3 KiB
C++
92 lines
2.3 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 MAPNIK_COORD_ARRAY_HPP
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#define MAPNIK_COORD_ARRAY_HPP
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//mapnik
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#include <mapnik/coord.hpp>
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// stl
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#include <cassert>
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#include <cstring>
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namespace mapnik {
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template <typename T>
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class coord_array
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{
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typedef T coord_type;
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coord_type* pt_;
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const unsigned size_;
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public:
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coord_array(unsigned size=0)
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: pt_(static_cast<coord_type*>(size==0?0: ::operator new (sizeof(coord_type)*size))),
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size_(size) {}
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coord_array(coord_array const& rhs)
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: pt_(static_cast<coord_type*>(rhs.size_==0?0: ::operator new (sizeof(coord_type)*rhs.size_))),
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size_(rhs.size_) {
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std::memcpy(pt_,rhs.pt_,sizeof(coord_type)*rhs.size_);
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}
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~coord_array()
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{
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::operator delete (pt_);
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}
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unsigned size() const
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{
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return size_;
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}
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void set(unsigned index,double x,double y)
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{
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assert(index<size_);
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pt_[index].x=x;
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pt_[index].y=y;
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}
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const coord_type& at(unsigned index) const
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{
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assert(index<size_);
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return pt_[index];
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}
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const coord_type& operator[] (unsigned index) const
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{
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assert (index<size_);
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return pt_[index];
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}
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coord_type& operator[] (unsigned index)
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{
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assert (index<size_);
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return pt_[index];
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}
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private:
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coord_array& operator=(const coord_array&);
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};
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}
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#endif // MAPNIK_COORD_ARRAY_HPP
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