source file of the GNU LilyPond music typesetter
- (c) 1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1999--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "translator-group.hh"
-#include "lyric-combine-music-iterator.hh"
#include "lyric-combine-music.hh"
-#include "musical-request.hh"
+#include "event.hh"
+#include "note-head.hh"
+#include "grob.hh"
+#include "music-iterator.hh"
-Busy_playing_req busy_req;
-Melisma_req melisma_start_req;
-Melisma_req melisma_stop_req;
-Melisma_playing_req melisma_playing_req;
+class Lyric_combine_music_iterator : public Music_iterator
+{
+public:
+ VIRTUAL_COPY_CONS (Music_iterator);
+ Lyric_combine_music_iterator ();
+ Lyric_combine_music_iterator (Lyric_combine_music_iterator const&src);
+ DECLARE_SCHEME_CALLBACK(constructor, ());
+protected:
+ virtual void construct_children ();
+ virtual Moment pending_moment () const;
+ virtual void do_quit();
+ virtual void process (Moment);
+ virtual Music_iterator *try_music_in_children (Music *) const;
+
+ virtual bool ok () const;
+ virtual void derived_mark () const;
+private:
+ bool get_busy_status ()const ;
+ bool melisma_busy ();
+
+ Music_iterator * music_iter_;
+ Music_iterator * lyric_iter_;
+};
+
+/*
+ Ugh, why static?
+ */
+Music *busy_req;
+Music *melisma_playing_req;
+
Lyric_combine_music_iterator::Lyric_combine_music_iterator ()
{
- melisma_start_req.span_dir_ = START;
- melisma_stop_req.span_dir_ = STOP;
-
- melisma_started_b_ = false;
- music_iter_p_ =0;
- lyric_iter_p_ =0;
+ music_iter_ =0;
+ lyric_iter_ =0;
+
+ if (!busy_req)
+ {
+ busy_req
+ = make_music_by_name (ly_symbol2scm ("BusyPlayingEvent"));
+ melisma_playing_req
+ = make_music_by_name (ly_symbol2scm ("MelismaPlayingEvent"));
+ }
}
Moment
-Lyric_combine_music_iterator::next_moment () const
+Lyric_combine_music_iterator::pending_moment () const
{
- Moment musnext = music_iter_p_->next_moment ();
+ Moment musnext = music_iter_->pending_moment ();
return musnext;
}
bool
Lyric_combine_music_iterator::ok () const
{
- return music_iter_p_->ok ();
+ return music_iter_->ok ();
}
void
-Lyric_combine_music_iterator::do_print () const
+Lyric_combine_music_iterator::derived_mark()const
{
- music_iter_p_->print ();
- lyric_iter_p_->print ();
+ if (music_iter_)
+ scm_gc_mark (music_iter_->self_scm());
+ if (lyric_iter_)
+ scm_gc_mark (lyric_iter_->self_scm());
}
void
Lyric_combine_music_iterator::construct_children ()
{
- Lyric_combine_music const * m = dynamic_cast<Lyric_combine_music const*> (music_l_);
+ Lyric_combine_music const * m = dynamic_cast<Lyric_combine_music const*> (get_music ());
- music_iter_p_ = get_iterator_p (m->music_l ());
- lyric_iter_p_ = get_iterator_p (m->lyrics_l ());
+ music_iter_ = unsmob_iterator (get_iterator (m->get_music ()));
+ lyric_iter_ = unsmob_iterator (get_iterator (m->get_lyrics ()));
+}
+
+bool
+Lyric_combine_music_iterator::get_busy_status () const
+{
+ /*
+ We have to use both the event and the busyGrobs queue. The
+ busyGrobs queue doesn't contain any notes that have started this
+ instant. */
+ if (try_music (busy_req))
+ return true;
+
+ Translator_group * tr = music_iter_->report_to ();
+
+ SCM grobs = tr->get_property ("busyGrobs");
+ Moment now = tr->now_mom();
+ for (; gh_pair_p (grobs); grobs = gh_cdr (grobs))
+ {
+ SCM grob = gh_cdar (grobs);
+ Moment end =*unsmob_moment (gh_caar (grobs));
+
+
+ /*
+ This is slightly ugh: we are now confunding the frontend
+ (iterators) and the backend (note heads) */
+ if (end > now
+ && Note_head::has_interface (unsmob_grob (grob)))
+ return true;
+ }
+
+ return false;
+}
+
+
+bool
+Lyric_combine_music_iterator::melisma_busy ()
+{
+ /*
+ We can not read the property, since music_iter_->report_to() might
+ not be the context that sets the melisma properties, but rather a
+ parent context.
+ */
+ return music_iter_->try_music (melisma_playing_req);
}
void
-Lyric_combine_music_iterator::do_process_and_next (Moment m)
+Lyric_combine_music_iterator::process (Moment m)
{
- Moment my_next = music_iter_p_->next_moment ();
+ Moment my_next = music_iter_->pending_moment ();
if (my_next > m)
return;
- music_iter_p_->process_and_next (m);
+ music_iter_->process (m);
- bool busy = try_music (&busy_req);
- if (busy)
+ if (get_busy_status () && !melisma_busy () && lyric_iter_->ok ())
{
- bool melisma_b = try_music (&melisma_playing_req);
- if (!melisma_started_b_ || !melisma_b)
- {
- if (lyric_iter_p_->ok ())
- {
- if (melisma_b && !melisma_started_b_)
- lyric_iter_p_->try_music (&melisma_start_req);
- else if (melisma_started_b_)
- lyric_iter_p_->try_music (&melisma_stop_req);
-
- Moment m= lyric_iter_p_->next_moment ();
- lyric_iter_p_->process_and_next (m);
- }
- }
- melisma_started_b_ = melisma_b;
+ Moment m= lyric_iter_->pending_moment ();
+ lyric_iter_->process (m);
}
-
+}
-
- Music_iterator::do_process_and_next (m);
+void
+Lyric_combine_music_iterator::do_quit ()
+{
+ if (music_iter_)
+ music_iter_->quit();
+ if (lyric_iter_)
+ lyric_iter_->quit();
}
-Lyric_combine_music_iterator::~Lyric_combine_music_iterator ()
+Lyric_combine_music_iterator::Lyric_combine_music_iterator (Lyric_combine_music_iterator const & src)
+ : Music_iterator (src)
{
- delete lyric_iter_p_;
- delete music_iter_p_;
+ lyric_iter_ = 0;
+ music_iter_ = 0;
+
+ if (src.lyric_iter_)
+ lyric_iter_ = src.lyric_iter_->clone ();
+ if (src.music_iter_)
+ music_iter_ = src.music_iter_->clone ();
+
+ if (lyric_iter_)
+ scm_gc_unprotect_object (lyric_iter_->self_scm());
+ if (music_iter_)
+ scm_gc_unprotect_object (music_iter_->self_scm());
}
Music_iterator*
-Lyric_combine_music_iterator::try_music_in_children (Music const *m) const
+Lyric_combine_music_iterator::try_music_in_children (Music *m) const
{
- Music_iterator * i = music_iter_p_->try_music (m);
+ Music_iterator * i = music_iter_->try_music (m);
if (i)
return i;
else
- return lyric_iter_p_->try_music (m);
+ return lyric_iter_->try_music (m);
}
+
+IMPLEMENT_CTOR_CALLBACK (Lyric_combine_music_iterator);
projects / lilypond.git / blobdiff