Uniformize, internalize.

[lilypond.git] / lily / lyric-combine-music-iterator.cc

diff --git a/lily/lyric-combine-music-iterator.cc b/lily/lyric-combine-music-iterator.cc
index feebdceb0fa26a9d514e1857af12e59e283e5591..d053fa1859f50d706fa17dbf6f75d43e348bc9ba 100644 (file)
--- a/lily/lyric-combine-music-iterator.cc
+++ b/lily/lyric-combine-music-iterator.cc
@@ -3,12 +3,11 @@
   
   source file of the GNU LilyPond music typesetter
   
-  (c) 1999--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 1999--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   
  */
 
 #include "context.hh"
-#include "lyric-combine-music.hh"
 #include "event.hh"
 #include "note-head.hh"
 #include "grob.hh"
@@ -29,11 +28,14 @@ protected:
 
   virtual bool ok () const;
   virtual void derived_mark () const;
-  virtual void derived_substitute (Context *,Context *) ;
+  virtual void derived_substitute (Context *, Context *) ;
 private:
   bool get_busy_status ()const ;
   bool melisma_busy (); 
+  Music* get_combine_lyrics () const;
+  Music* get_combine_music () const;
 
+  
   Music_iterator * music_iter_;
   Music_iterator * lyric_iter_;
 };
@@ -62,8 +64,8 @@ Music *melisma_playing_req;
 
 Lyric_combine_music_iterator::Lyric_combine_music_iterator ()
 {
-  music_iter_ =0;
-  lyric_iter_ =0;
+  music_iter_ = 0;
+  lyric_iter_ = 0;
 
   if (!busy_req)
     {
@@ -97,21 +99,41 @@ Lyric_combine_music_iterator::derived_mark ()const
 }
 
 void
-Lyric_combine_music_iterator::derived_substitute (Context *f,Context * t)
+Lyric_combine_music_iterator::derived_substitute (Context *f, Context * t)
 {
   if (music_iter_)
-    music_iter_->substitute_outlet (f,t);
+    music_iter_->substitute_outlet (f, t);
   if (lyric_iter_)
-    lyric_iter_->substitute_outlet (f,t);
+    lyric_iter_->substitute_outlet (f, t);
 }
 
+Music*
+Lyric_combine_music_iterator::get_combine_music () const
+{
+  SCM l = get_music ()->get_property ("elements");
+  if (!scm_is_pair (l))
+    return 0;
+  return unsmob_music (scm_car (l));
+}
+
+Music*
+Lyric_combine_music_iterator::get_combine_lyrics () const
+{
+  SCM l = get_music ()->get_property ("elements");
+  if (!scm_is_pair (l))
+    return 0;
+  l = scm_cdr (l);
+  if (!scm_is_pair (l))
+    return 0;
+  return unsmob_music (scm_car (l));
+}
+
+
 void
 Lyric_combine_music_iterator::construct_children ()
 {
-  Lyric_combine_music const * m = dynamic_cast<Lyric_combine_music const*> (get_music ());
-  
-  music_iter_ = unsmob_iterator (get_iterator (m->get_music ()));
-  lyric_iter_ = unsmob_iterator (get_iterator (m->get_lyrics ()));
+  music_iter_ = unsmob_iterator (get_iterator (get_combine_music ()));
+  lyric_iter_ = unsmob_iterator (get_iterator (get_combine_lyrics ()));
 }
 
 bool
@@ -168,7 +190,7 @@ Lyric_combine_music_iterator::process (Moment m)
 
   if (get_busy_status () && !melisma_busy () && lyric_iter_->ok ())
     {
-      Moment m= lyric_iter_->pending_moment ();
+      Moment m = lyric_iter_->pending_moment ();
       lyric_iter_->process (m);
     }
 }