/*
- grace-music.cc -- implement Grace_music
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1999--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1999--2008 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/>.
*/
#include "grace-iterator.hh"
#include "global-context.hh"
-#include "warn.hh"
+#include "music.hh"
void
Grace_iterator::process (Moment m)
{
Moment main;
main.main_part_ = -start_mom_.grace_part_ + m.grace_part_;
+
+ // GraceChange is announced in order to make the Grace_engraver able
+ // to distinguish \stemNeutral \grace { ... and \grace { \stemNeutral ...
+ if (in_grace_ != bool (m.grace_part_) && child_iter_ && child_iter_->get_outlet ())
+ {
+ send_stream_event (child_iter_->get_outlet (), "GraceChange", get_music ()->origin (), 0);
+ }
+ in_grace_ = m.grace_part_;
+
Music_wrapper_iterator::process (main);
/* We can safely do this, since \grace should always be inside