-/*
- lyric-combine-music-iterator.cc -- implement Lyric_combine_music_iterator
-
+/*
+ new-lyric-combine-iterator.cc -- implement Lyric_combine_music_iterator
+
source file of the GNU LilyPond music typesetter
-
- (c) 1999--2001 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"
+ (c) 2004--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
-/*
- Ugh, why static?
- */
-Busy_playing_req *busy_req;
-Melisma_req *melisma_start_req;
-Melisma_req *melisma_stop_req;
-Melisma_playing_req * melisma_playing_req;
+#include "context.hh"
+#include "dispatcher.hh"
+#include "global-context.hh"
+#include "grob.hh"
+#include "input.hh"
+#include "international.hh"
+#include "listener.hh"
+#include "music-iterator.hh"
+#include "music.hh"
+
+class Lyric_combine_music_iterator : public Music_iterator
+{
+public:
+ 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 bool run_always ()const;
+ virtual bool ok () const;
+ virtual void derived_mark () const;
+ virtual void derived_substitute (Context *, Context *);
+ void set_music_context (Context *to);
+private:
+ bool start_new_syllable ();
+ Context *find_voice ();
+ DECLARE_LISTENER (set_busy);
+ DECLARE_LISTENER (check_new_context);
+
+ bool pending_grace_lyric_;
+ bool music_found_;
+ Context *lyrics_context_;
+ Context *music_context_;
+ SCM lyricsto_voice_name_;
+
+ bool busy_;
+ Music_iterator *lyric_iter_;
+};
Lyric_combine_music_iterator::Lyric_combine_music_iterator ()
{
- if (!busy_req)
+ music_found_ = false;
+ pending_grace_lyric_ = false;
+ lyric_iter_ = 0;
+ music_context_ = 0;
+ lyrics_context_ = 0;
+ busy_ = false;
+}
+
+IMPLEMENT_LISTENER (Lyric_combine_music_iterator, set_busy)
+void
+Lyric_combine_music_iterator::set_busy (SCM se)
+{
+ Stream_event *e = unsmob_stream_event (se);
+ SCM mus = e->get_property ("music");
+ Music *m = unsmob_music (mus);
+ assert (m);
+
+ if (m->is_mus_type ("note-event") || m->is_mus_type ("cluster-note-event"))
+ busy_ = true;
+}
+
+void
+Lyric_combine_music_iterator::set_music_context (Context *to)
+{
+ if (music_context_)
+ {
+ music_context_->event_source()->remove_listener (GET_LISTENER (set_busy), ly_symbol2scm ("MusicEvent"));
+ lyrics_context_->unset_property (ly_symbol2scm ("associatedVoiceContext"));
+ }
+ music_context_ = to;
+ if (to)
+ {
+ to->event_source()->add_listener (GET_LISTENER (set_busy), ly_symbol2scm ("MusicEvent"));
+ lyrics_context_->set_property ("associatedVoiceContext", to->self_scm ());
+ }
+}
+
+bool
+Lyric_combine_music_iterator::start_new_syllable ()
+{
+ if (!busy_)
+ return false;
+
+ busy_ = false;
+
+ if (!lyrics_context_)
+ return false;
+
+ if (!to_boolean (lyrics_context_->get_property ("ignoreMelismata")))
{
- busy_req = new Busy_playing_req;
- melisma_playing_req = new Melisma_playing_req;
- melisma_stop_req = new Melisma_req;
- melisma_start_req = new Melisma_req;
+ bool m = melisma_busy (music_context_);
+ if (m)
+ return false;
}
- melisma_start_req->set_span_dir (START);
- melisma_stop_req->set_span_dir (STOP);
-
- music_iter_p_ =0;
- lyric_iter_p_ =0;
+
+ return true;
}
Moment
Lyric_combine_music_iterator::pending_moment () const
{
- Moment musnext = music_iter_p_->pending_moment ();
- return musnext;
+ Moment m;
+
+ m.set_infinite (1);
+
+ return m;
+}
+
+bool
+Lyric_combine_music_iterator::run_always () const
+{
+ return true;
}
bool
Lyric_combine_music_iterator::ok () const
{
- return music_iter_p_->ok ();
+ return lyric_iter_ && lyric_iter_->ok ();
}
+void
+Lyric_combine_music_iterator::derived_mark ()const
+{
+ if (lyric_iter_)
+ scm_gc_mark (lyric_iter_->self_scm ());
+ if (lyrics_context_)
+ scm_gc_mark (lyrics_context_->self_scm ());
+ if (music_context_)
+ scm_gc_mark (music_context_->self_scm ());
+}
void
-Lyric_combine_music_iterator::construct_children ()
+Lyric_combine_music_iterator::derived_substitute (Context *f, Context *t)
{
- Lyric_combine_music const * m = dynamic_cast<Lyric_combine_music const*> (music_l ());
-
- music_iter_p_ = get_iterator_p (m->music_l ());
- lyric_iter_p_ = get_iterator_p (m->lyrics_l ());
+ if (lyric_iter_)
+ lyric_iter_->substitute_outlet (f, t);
+ if (lyrics_context_ && lyrics_context_ == f)
+ lyrics_context_ = t;
+ if (music_context_ && music_context_ == f)
+ set_music_context (t);
}
void
-Lyric_combine_music_iterator::process (Moment m)
+Lyric_combine_music_iterator::construct_children ()
{
- Moment my_next = music_iter_p_->pending_moment ();
- if (my_next > m)
+ Music *m = unsmob_music (get_music ()->get_property ("element"));
+ lyric_iter_ = unsmob_iterator (get_iterator (m));
+ if (!lyric_iter_)
return;
-
- music_iter_p_->process (m);
+ lyrics_context_ = find_context_below (lyric_iter_->get_outlet (),
+ ly_symbol2scm ("Lyrics"), "");
+
+ lyricsto_voice_name_ = get_music ()->get_property ("associated-context");
- bool busy = try_music (busy_req);
- if (busy)
+ Context *voice = find_voice ();
+ if (voice)
+ set_music_context (voice);
+ else
{
- bool melisma_b = try_music (melisma_playing_req);
- if (!melisma_b)
- {
- if (lyric_iter_p_->ok ())
- {
- // FIXME
-#if 0 // devise a new way for this
- 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);
-#endif
-
- Moment m= lyric_iter_p_->pending_moment ();
- lyric_iter_p_->process (m);
- }
- }
+ /*
+ Wait for a Create_context event. If this isn't done, lyrics can be
+ delayed when voices are created implicitly.
+ */
+ Global_context *g = lyrics_context_->get_global_context ();
+ g->events_below ()->add_listener (GET_LISTENER (check_new_context), ly_symbol2scm ("CreateContext"));
}
-
+
+ /*
+ We do not create a Lyrics context, because the user might
+ create one with a different name, and then we will not find that
+ one.
+ */
}
-Lyric_combine_music_iterator::~Lyric_combine_music_iterator ()
+IMPLEMENT_LISTENER (Lyric_combine_music_iterator, check_new_context)
+void
+Lyric_combine_music_iterator::check_new_context (SCM sev)
{
- delete lyric_iter_p_;
- delete music_iter_p_;
+ // TODO: Check first if type=Voice and if id matches
+ (void)sev;
+
+ Context *voice = find_voice ();
+ if (voice)
+ {
+ set_music_context (voice);
+
+ Global_context *g = voice->get_global_context ();
+ g->events_below ()->remove_listener (GET_LISTENER (check_new_context), ly_symbol2scm ("CreateContext"));
+ }
}
-Lyric_combine_music_iterator::Lyric_combine_music_iterator (Lyric_combine_music_iterator const & src)
- : Music_iterator (src)
+/*
+Look for a suitable voice to align lyrics to.
+*/
+Context *
+Lyric_combine_music_iterator::find_voice ()
{
+ SCM voice_name = lyricsto_voice_name_;
+ SCM running = lyrics_context_
+ ? lyrics_context_->get_property ("associatedVoice")
+ : SCM_EOL;
+
+ if (scm_is_string (running))
+ voice_name = running;
+
+ if (scm_is_string (voice_name)
+ && (!music_context_ || ly_scm2string (voice_name) != music_context_->id_string ()))
+ {
+ Context *t = get_outlet ();
+ while (t && t->get_parent_context ())
+ t = t->get_parent_context ();
- lyric_iter_p_ = src.lyric_iter_p_ ? src.lyric_iter_p_->clone () : 0;
- music_iter_p_ = src.music_iter_p_ ? src.music_iter_p_->clone () : 0;
+ string name = ly_scm2string (voice_name);
+ return find_context_below (t, ly_symbol2scm ("Voice"), name);
+ }
+
+ return 0;
}
-Music_iterator*
-Lyric_combine_music_iterator::try_music_in_children (Music *m) const
+
+void
+Lyric_combine_music_iterator::process (Moment)
{
- Music_iterator * i = music_iter_p_->try_music (m);
- if (i)
- return i;
- else
- return lyric_iter_p_->try_music (m);
+ find_voice ();
+ if (!music_context_)
+ return;
+
+ if (!music_context_->get_parent_context ())
+ {
+ /*
+ The melody has died.
+ We die too.
+ */
+ if (lyrics_context_)
+ lyrics_context_->unset_property (ly_symbol2scm ("associatedVoiceContext"));
+ lyric_iter_ = 0;
+ set_music_context (0);
+ }
+
+ if (music_context_
+ && (start_new_syllable () || pending_grace_lyric_)
+ && lyric_iter_->ok ())
+ {
+ if (music_context_->now_mom ().grace_part_)
+ {
+ pending_grace_lyric_ = true;
+ return;
+ }
+ else
+ pending_grace_lyric_ = false;
+
+ Moment m = lyric_iter_->pending_moment ();
+ lyric_iter_->process (m);
+
+ music_found_ = true;
+ }
}
+void
+Lyric_combine_music_iterator::do_quit ()
+{
+ if (!music_found_)
+ {
+ SCM voice_name = get_music ()->get_property ("associated-context");
+
+ string name;
+ if (scm_is_string (voice_name))
+ name = ly_scm2string (voice_name);
+
+ get_music ()->origin ()->warning (_f ("cannot find Voice `%s'",
+ name.c_str ()) + "\n");
+ }
+
+ if (lyric_iter_)
+ lyric_iter_->quit ();
+}
IMPLEMENT_CTOR_CALLBACK (Lyric_combine_music_iterator);
projects / lilypond.git / blobdiff