image2d.hh

// Copyright (C) 2001, 2002, 2003, 2004  EPITA Research and Development Laboratory
//
// This file is part of the Olena Library.  This library is free
// software; you can redistribute it and/or modify it under the terms
// of the GNU General Public License version 2 as published by the
// Free Software Foundation.
//
// 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
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this library; see the file COPYING.  If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
// MA 02111-1307, USA.
//
// As a special exception, you may use this file as part of a free
// software library without restriction.  Specifically, if other files
// instantiate templates or use macros or inline functions from this
// file, or you compile this file and link it with other files to
// produce an executable, this file does not by itself cause the
// resulting executable to be covered by the GNU General Public
// License.  This exception does not however invalidate any other
// reasons why the executable file might be covered by the GNU General
// Public License.

#ifndef OLENA_CORE_IMAGE2D_HH
# define OLENA_CORE_IMAGE2D_HH

# include <oln/core/point2d.hh>
# include <oln/core/dpoint2d.hh>
# include <oln/core/fwd_iter2d.hh>
# include <oln/core/bkd_iter2d.hh>
# include <oln/core/impl/image_array2d.hh>
# include <oln/core/image.hh>
# include <oln/io/readable.hh>

# include <iostream>
# include <stdlib.h>

namespace oln {

  template<class T, class Exact = mlc::final>
  class image2d; // fwd_decl

  template<class T, class Exact>
  struct image_id<image2d<T, Exact> >
  {
    enum{dim = 2};
    typedef T value_type;
    typedef typename mlc::exact_vt<image2d<T, Exact>, Exact>::ret exact_type;
    typedef impl::image_array2d<T> impl_type;
    typedef point2d point_type;
    typedef image2d_size size_type;
  };

  template<class T, class Exact>
  struct image_traits<image2d<T, Exact> >:
    public image_traits<image<image_id<image2d<T, Exact> >::dim,
                              typename image_id<image2d<T, Exact> >::value_type,
                              typename image_id<image2d<T, Exact> >::impl_type,
                              typename image_id<image2d<T, Exact> >::exact_type> >
  {};

  // client can use image2d; instances are real images, that is,
  // images with data ---conversely to proxy images

  template<class T, class Exact>
  class image2d:
    public image<image_id<image2d<T, Exact> >::dim,
                 typename image_id<image2d<T, Exact> >::value_type,
                 typename image_id<image2d<T, Exact> >::impl_type,
                 typename image_id<image2d<T, Exact> >::exact_type>
  {

  public:

    typedef image2d<T, Exact> self_type;
    typedef typename image_id<image2d<T, Exact> >::value_type value_type;
    typedef typename image_id<image2d<T, Exact> >::exact_type exact_type;
    typedef typename image_id<image2d<T, Exact> >::impl_type impl_type;
    typedef oln::image<image_id<image2d<T, Exact> >::dim,
                       value_type,
                       impl_type,
                       exact_type> super_type;

    friend class abstract::image<exact_type>;


    image2d() :
      super_type()
    {
      mlc_init_static_hierarchy(Exact);
    }


    image2d(coord nrows, coord ncols, coord border = 2) :
      super_type(new impl_type(image2d_size(nrows, ncols, border)))
    {
      mlc_init_static_hierarchy(Exact);
    }

    image2d(const image2d_size& size) :
      super_type(new impl_type(size))
    {
      mlc_init_static_hierarchy(Exact);
    }

    image2d(self_type& rhs) : // shallow copy
      super_type(rhs)
    {
      mlc_init_static_hierarchy(Exact);
    }

    // io
    image2d(const io::internal::anything& r)
      : super_type()
    {
      mlc_init_static_hierarchy(Exact);
      r.assign(*this);
    }

    image2d&
    operator=(const io::internal::anything& r)
    {
      return r.assign(*this);
    }

    exact_type&
    operator=(self_type rhs)
    {
      return this->exact().assign(rhs.exact());
    }

    static std::string
    name()
    {
      return
        std::string("image2d<")
        + ntg_name(T) + ","
        + Exact::name() + ">";
    }


    template<class U>
    struct mute
    {
      typedef image2d<U> ret;
    };

    image2d(const self_type& rhs); // w/o impl

  protected:

    exact_type
    clone_() const
    {
      exact_type output(this->nrows(), this->ncols(), this->border());
      clone_to(output.impl());
      return output;
    }

  };

  template <class T, class Exact>
  struct dim_traits<2, T, Exact>
  {
    typedef image2d<T, Exact> img_type;
  };
} // end of oln

#endif // ! OLENA_CORE_IMAGE2D_HH

---