mapnik/include/coord_array.hpp
2006-03-31 10:32:02 +00:00

92 lines
2.3 KiB
C++

/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2006 Artem Pavlenko
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 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