mapnik/include/coord_array.hpp

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2005-06-14 15:06:59 +00:00
/* This file is part of Mapnik (c++ mapping toolkit)
* Copyright (C) 2005 Artem Pavlenko
*
* Mapnik is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or any later version.
*
* This program 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 General Public License for more details.#include "memory.hpp"
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
//$Id: coord_array.hpp 39 2005-04-10 20:39:53Z pavlenko $
#ifndef COORD_ARRAY_HPP
#define COORD_ARRAY_HPP
#include "coord.hpp"
#include <cassert>
namespace mapnik
{
template <typename T>
class coord_array
{
typedef T coord_type;
coord_type* pt_;
const unsigned size_;
public:
coord_array(unsigned size=0)
: pt_(static_cast<coord_type*>(size==0?0: ::operator new (sizeof(coord_type)*size))),
size_(size) {}
coord_array(const coord_array& rhs)
: pt_(static_cast<coord_type*>(rhs.size_==0?0: ::operator new (sizeof(coord_type)*rhs.size_))),
size_(rhs.size_) {
memcpy(pt_,rhs.pt_,sizeof(coord_type)*rhs.size_);
}
~coord_array()
{
::operator delete (pt_);
}
unsigned size() const
{
return size_;
}
void set(unsigned index,double x,double y)
{
assert(index<size_);
pt_[index].x=x;
pt_[index].y=y;
}
const coord_type& at(unsigned index) const
{
assert(index<size_);
return pt_[index];
}
const coord_type& operator[] (unsigned index) const
{
assert (index<size_);
return pt_[index];
}
coord_type& operator[] (unsigned index)
{
assert (index<size_);
return pt_[index];
}
private:
coord_array& operator=(const coord_array&);
};
}
#endif //COORD_ARRAY_HPP