/*
  This file is part of LilyPond, the GNU music typesetter.

  Copyright (C) 2001--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>

  LilyPond 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.

  LilyPond 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 LilyPond.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef STAFF_SPACING_HH
#define STAFF_SPACING_HH

#include "lily-proto.hh"
#include "grob-interface.hh"
#include "spring.hh"

class Staff_spacing
{
  static Real optical_correction (Grob *, Grob *, Interval);
  static Real next_notes_correction (Grob *, Grob *);

public:
  DECLARE_GROB_INTERFACE ();
  static Spring get_spacing (Grob *, Grob *, Real);
  static Interval bar_y_positions (Grob *);
};

#endif /* STAFF_SPACING_HH */
