tree_fast_to_image.hh

// Copyright (C) 2007, 2008, 2009 EPITA Research and Development Laboratory (LRDE)
//
// This file is part of Olena.
//
// Olena 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, version 2 of the License.
//
// Olena 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 Olena.  If not, see <http://www.gnu.org/licenses/>.
//
// As a special exception, you may use this file as part of a free
// software project 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 MLN_UTIL_TREE_FAST_TO_IMAGE_HH
# define MLN_UTIL_TREE_FAST_TO_IMAGE_HH

# include <mln/core/concept/image.hh>
# include <mln/util/tree_fast.hh>
# include <mln/core/site_set/p_set.hh>
# include <list>

namespace mln
{

  namespace util
  {

    template <typename T, typename I>
    void
    tree_fast_to_image(tree_fast<T>& tree, Image<I>& output_);

# ifndef MLN_INCLUDE_ONLY

    namespace impl
    {

      template <typename T, typename I>
      inline
      void
      tree_fast_to_image(tree_fast<T>& tree, Image<I>& output_)
      {
        trace::entering("util::impl::tree_fast_to_image");

        I& output = exact(output_);
        std::list<unsigned> l;

        l.push_back (tree.root_);
        while (! l.empty())
          {
            unsigned current = l.front();
            for (unsigned i = 0; i < tree.child_[current].size(); ++i)
              l.push_back(tree.child_[current][i]);

            mln_piter(p_set<point2d>) p(tree.data_[current].points);

            for_all(p)
              {
                output(p) = tree.data_[current].value;
              }
            l.pop_front();
          }

        trace::exiting("util::impl::tree_fast_to_image");
      }

    } // end of namespace mln::util::impl



    template <typename T, typename I>
    inline
    void
    tree_fast_to_image(tree_fast<T>& tree, Image<I>& output_)
    {
      trace::entering("util::tree_fast_to_image");

      impl::tree_fast_to_image(tree, output_);

      trace::exiting("util::tree_fast_to_image");
    }

# endif // ! MLN_INCLUDE_ONLY

  } // end of namespace mln::util

} // end of namespace mln

#endif // ! MLN_UTIL_TREE_FAST_TO_IMAGE_HH