-/*
- repeated-music-iterator.cc -- implement Folded_repeat_iterator
-
- source file of the GNU LilyPond music typesetter
-
- (c) 1999--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+/*
+ folded-repeat-iterator.cc -- implement Folded_repeat_iterator
+ source file of the GNU LilyPond music typesetter
-/*
- Folded repeats are a stupid idea at this point, so we refrain from
- implementing get_music () and skip ().
+ (c) 1999--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "folded-repeat-iterator.hh"
+
+#include "context.hh"
+#include "input.hh"
+#include "international.hh"
#include "repeated-music.hh"
-#include "music-list.hh"
#include "simultaneous-music-iterator.hh"
-#include "translator-group.hh"
Folded_repeat_iterator::Folded_repeat_iterator ()
{
- main_iter_p_ = 0;
- alternative_iter_p_ = 0;
+ main_iter_ = 0;
+ alternative_iter_ = 0;
}
bool
Folded_repeat_iterator::ok () const
{
- return main_iter_p_ || alternative_iter_p_;
-}
-
-Folded_repeat_iterator::~Folded_repeat_iterator ()
-{
- delete main_iter_p_;
- delete alternative_iter_p_;
+ return main_iter_ || alternative_iter_;
}
-
-Folded_repeat_iterator::Folded_repeat_iterator (Folded_repeat_iterator const &src)
- : Music_iterator (src)
+void
+Folded_repeat_iterator::do_quit ()
{
- main_iter_p_ = src.main_iter_p_ ? src.main_iter_p_->clone () : 0;
- alternative_iter_p_ = src.alternative_iter_p_ ? src.alternative_iter_p_->clone () : 0;
- main_length_mom_ = src.main_length_mom_;
+ if (main_iter_)main_iter_->quit ();
+ if (alternative_iter_)alternative_iter_->quit ();
}
Moment
Folded_repeat_iterator::pending_moment () const
{
- if (main_iter_p_)
- {
- return main_iter_p_->pending_moment ();
- }
+ if (main_iter_)
+ return main_iter_->pending_moment ();
else
- return main_length_mom_ + alternative_iter_p_->pending_moment ();
+ return main_length_mom_ + alternative_iter_->pending_moment ();
}
void
Folded_repeat_iterator::construct_children ()
{
- Repeated_music * mus = dynamic_cast<Repeated_music*> (music_l ());
- main_iter_p_ = get_iterator_p (mus->body ());
- if (!main_iter_p_->ok ())
+ Music *mus = get_music ();
+ main_iter_ = unsmob_iterator (get_iterator (Repeated_music::body (mus)));
+ if (!main_iter_->ok ())
{
- leave_body ();
+ leave_body ();
enter_alternative ();
}
}
void
Folded_repeat_iterator::process (Moment m)
{
- if (!m)
- {
- bool success = try_music (music_l ());
- if (!success)
- music_l ()->origin ()->warning (_ ("no one to print a repeat brace"));
- }
-
- if (main_iter_p_)
+ if (main_iter_)
{
- main_iter_p_->process (m);
- if (!main_iter_p_->ok ())
+ main_iter_->process (m);
+ if (!main_iter_->ok ())
leave_body ();
}
- if (!main_iter_p_ && !alternative_iter_p_)
- {
- enter_alternative ();
- }
-
- if (alternative_iter_p_)
+ if (!main_iter_ && !alternative_iter_)
+ enter_alternative ();
+
+ if (alternative_iter_)
{
- alternative_iter_p_->process (m - main_length_mom_);
- if (!alternative_iter_p_->ok ())
+ alternative_iter_->process (m - main_length_mom_);
+ if (!alternative_iter_->ok ())
{
- delete alternative_iter_p_;
- alternative_iter_p_ =0;
+ alternative_iter_->quit ();
+ alternative_iter_ = 0;
}
}
}
void
Folded_repeat_iterator::leave_body ()
{
- Repeated_music * mus = dynamic_cast<Repeated_music *> (music_l ());
- delete main_iter_p_;
- main_iter_p_ = 0;
- main_length_mom_ += mus->body ()->length_mom ();
+ Music *mus = get_music ();
+
+ main_iter_->quit ();
+ main_iter_ = 0;
+ main_length_mom_ += Repeated_music::body (mus)->get_length ();
}
void
Folded_repeat_iterator::enter_alternative ()
{
- Repeated_music * mus = dynamic_cast<Repeated_music *> (music_l ());
- if (mus->alternatives ())
+ Music *mus = get_music ();
+ if (scm_is_pair (Repeated_music::alternatives (mus)))
{
- Simultaneous_music_iterator * s = new Simultaneous_music_iterator;
- s->separate_contexts_b_ = true;
- s->init_translator (mus->alternatives (), report_to_l ());
-
- alternative_iter_p_ = s;
- alternative_iter_p_->construct_children ();
+ /*
+ ugh.
+ */
+ Simultaneous_music_iterator *s = new Simultaneous_music_iterator;
+ s->create_separate_contexts_ = true;
+ s->init_translator (mus, get_outlet ());
+
+ alternative_iter_ = s;
+ alternative_iter_->construct_children ();
+
+ s->unprotect ();
}
}
+void
+Folded_repeat_iterator::derived_mark () const
+{
+ if (main_iter_)
+ scm_gc_mark (main_iter_->self_scm ());
+ if (alternative_iter_)
+ scm_gc_mark (alternative_iter_->self_scm ());
+}
-Music_iterator*
-Folded_repeat_iterator::try_music_in_children (Music * m) const
+void
+Folded_repeat_iterator::derived_substitute (Context *f, Context *t)
{
- if (main_iter_p_)
- {
- return main_iter_p_->try_music (m);
- }
- if (alternative_iter_p_)
- return alternative_iter_p_->try_music (m);
- return 0;
+ if (main_iter_)
+ main_iter_->substitute_outlet (f, t);
+ if (alternative_iter_)
+ alternative_iter_->substitute_outlet (f, t);
}
IMPLEMENT_CTOR_CALLBACK (Folded_repeat_iterator);