-/*
- grace-music.cc -- implement Grace_music
-
- source file of the GNU LilyPond music typesetter
-
- (c) 1999--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
-
-#include "grace-music.hh"
-#include "grace-iterator.hh"
+/*
+ This file is part of LilyPond, the GNU music typesetter.
+ Copyright (C) 1999--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
-#include "global-translator.hh"
-#include "warn.hh"
+ 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.
-Grace_iterator::~Grace_iterator ()
-{
- // child_iter_ = 0;
-}
+ 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 "music.hh"
void
Grace_iterator::process (Moment m)
{
- Moment main ;
- main.main_part_ = - start_mom_.grace_part_ + m.grace_part_;
- Music_wrapper_iterator::process (main);
-}
+ Moment main;
+ main.main_part_ = -start_mom_.grace_part_ + m.grace_part_;
-void
-Grace_iterator::construct_children ()
-{
- Music_wrapper_iterator::construct_children ();
-}
+ // 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 ());
+ }
+ in_grace_ = m.grace_part_;
+ Music_wrapper_iterator::process (main);
+ /* We can safely do this, since \grace should always be inside
+ sequential. */
+ descend_to_child (child_iter_->get_outlet ());
+}
Moment
Grace_iterator::pending_moment () const
{
- Moment cp =Music_wrapper_iterator::pending_moment();
+ Moment cp = Music_wrapper_iterator::pending_moment ();
Moment pending;
- pending.grace_part_ = start_mom_.grace_part_ + cp.main_part_;
+ pending.grace_part_ = start_mom_.grace_part_ + cp.main_part_;
return pending;
}
-
IMPLEMENT_CTOR_CALLBACK (Grace_iterator);