/*
 Copyright (C) 2013 Marco Vassallo

 This program 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 (at your option) 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.

 You should have received a copy of the GNU General Public License along with
 this program; if not, see <http://www.gnu.org/licenses/>.
*/


#include "functionspace.h"
#include "mesh.h"
#include "Laplace.h"

DEFUN_DLD (fem_fs, args, , "initialize a fs from a mesh declared with fem_init_mesh")
{
  int nargin = args.length ();
  octave_value retval;

  if (nargin < 1 || nargin > 1)
    print_usage ();
  else
    {

      if (! mesh_type_loaded)
        {
          mesh::register_type ();
          mesh_type_loaded = true;
          mlock ();
        }

      if (args(0).type_id () == mesh::static_type_id ())
        {
          const mesh & msho = static_cast<const mesh&> (args(0).get_rep ());
          const dolfin::Mesh & mshd = msho.get_msh ();
          boost::shared_ptr <const dolfin::FunctionSpace> g (new Laplace::FunctionSpace (mshd));

          if (! functionspace_type_loaded)
            {
              functionspace::register_type ();
              functionspace_type_loaded = true;
              mlock ();
            }

          retval = new functionspace(g);
        }
    }
  return retval;
}