lily/grace-iterator.cc

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 1999--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
   5
   6   LilyPond is free software: you can redistribute it and/or modify
   7   it under the terms of the GNU General Public License as published by
   8   the Free Software Foundation, either version 3 of the License, or
   9   (at your option) any later version.
  10
  11   LilyPond is distributed in the hope that it will be useful,
  12   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14   GNU General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "grace-iterator.hh"
  21 #include "global-context.hh"
  22 #include "warn.hh"
  23
  24 void
  25 Grace_iterator::process (Moment m)
  26 {
  27   Moment main;
  28   main.main_part_ = -start_mom_.grace_part_ + m.grace_part_;
  29   Music_wrapper_iterator::process (main);
  30
  31   /* We can safely do this, since \grace should always be inside
  32      sequential.  */
  33   descend_to_child (child_iter_->get_outlet ());
  34 }
  35
  36 Moment
  37 Grace_iterator::pending_moment () const
  38 {
  39   Moment cp = Music_wrapper_iterator::pending_moment ();
  40
  41   Moment pending;
  42   pending.grace_part_ = start_mom_.grace_part_ + cp.main_part_;
  43
  44   return pending;
  45 }
  46
  47 IMPLEMENT_CTOR_CALLBACK (Grace_iterator);