/*

Copyright (C) 2008 Michael Goffioul

This file is part of Octave.

Octave 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 3 of the License, or (at your
option) any later version.

Octave 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 Octave; see the file COPYING.  If not, see
<http://www.gnu.org/licenses/>.

*/

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "graphics-backend.h"
#include "symtab.h"
#include "parse.h"

class gnuplot_backend : public base_graphics_backend
{
public:
  gnuplot_backend (void)
      : base_graphics_backend ("gnuplot") { }

  ~gnuplot_backend (void) { }

  void close_figure (const figure::properties& props) const
    {
      if (! props.get___plot_stream__ ().is_empty())
	{
	  octave_value_list args;
	  args(1) = "\nquit;\n";
	  args(0) = props.get___plot_stream__ ();
	  feval ("fputs", args);
	  args.resize (1);
	  feval ("fflush", args);
	  feval ("pclose", args);
	}
    }

  Matrix get_canvas_size (const graphics_handle& fh) const
    { return Matrix (1, 2, 0.0); }

  Matrix get_figure_position (const graphics_handle& fh) const
    { return Matrix (1, 4, 0.0); }
};

graphics_backend
graphics_backend::default_backend (void)
{
  if (available_backends.size () == 0)
    register_backend (new gnuplot_backend ());

  return available_backends["gnuplot"];
}

std::map<std::string, graphics_backend> graphics_backend::available_backends;