X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Ffolded-repeat-iterator.cc;h=17ef87275e1dc2d17342e8326790760253c9321d;hb=1bba302abc6b79d82a822a6a1803e8bb0e0225a0;hp=cf9b5438edbdddb37e277c8e90ff222ead814389;hpb=c659cb200486c2f908703696a1b2873e78c8160a;p=lilypond.git

diff --git a/lily/folded-repeat-iterator.cc b/lily/folded-repeat-iterator.cc
index cf9b5438ed..17ef87275e 100644
--- a/lily/folded-repeat-iterator.cc
+++ b/lily/folded-repeat-iterator.cc
@@ -1,17 +1,15 @@
-/*   
-     folded-repeat-iterator.cc --  implement Folded_repeat_iterator
-  
+/*
+  folded-repeat-iterator.cc -- implement Folded_repeat_iterator
+
   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@xs4all.nl>
+*/
 
 #include "folded-repeat-iterator.hh"
 
 #include "input.hh"
 #include "repeated-music.hh"
-#include "music-list.hh"
 #include "simultaneous-music-iterator.hh"
 #include "context.hh"
 
@@ -37,9 +35,7 @@ Moment
 Folded_repeat_iterator::pending_moment () const
 {
   if (main_iter_)
-    {
-      return main_iter_->pending_moment ();
-    }
+    return main_iter_->pending_moment ();
   else
     return main_length_mom_ + alternative_iter_->pending_moment ();
 }
@@ -47,8 +43,8 @@ Folded_repeat_iterator::pending_moment () const
 void
 Folded_repeat_iterator::construct_children ()
 {
-  Repeated_music  *  mus = dynamic_cast<Repeated_music*> (get_music ());
-  main_iter_ = unsmob_iterator (get_iterator (mus->body ()));
+  Music *mus = get_music ();
+  main_iter_ = unsmob_iterator (get_iterator (Repeated_music::body (mus)));
   if (!main_iter_->ok ())
     {
       leave_body ();
@@ -59,13 +55,13 @@ Folded_repeat_iterator::construct_children ()
 void
 Folded_repeat_iterator::process (Moment m)
 {
-  if (!m.to_bool () )
+  if (!m.to_bool ())
     {
       bool success = try_music (get_music ());
       if (!success)
 	get_music ()->origin ()->warning (_ ("no one to print a repeat brace"));
     }
-  
+
   if (main_iter_)
     {
       main_iter_->process (m);
@@ -74,17 +70,15 @@ Folded_repeat_iterator::process (Moment m)
     }
 
   if (!main_iter_ && !alternative_iter_)
-    {
-      enter_alternative ();
-    }
-  
+    enter_alternative ();
+
   if (alternative_iter_)
     {
       alternative_iter_->process (m - main_length_mom_);
       if (!alternative_iter_->ok ())
 	{
 	  alternative_iter_->quit ();
-	  alternative_iter_ =0;
+	  alternative_iter_ = 0;
 	}
     }
 }
@@ -92,47 +86,44 @@ Folded_repeat_iterator::process (Moment m)
 void
 Folded_repeat_iterator::leave_body ()
 {
-  Repeated_music *  mus = dynamic_cast<Repeated_music *> (get_music ());
+  Music *mus = get_music ();
 
   main_iter_->quit ();
   main_iter_ = 0;
-  main_length_mom_ +=  mus->body ()->get_length ();
+  main_length_mom_ += Repeated_music::body (mus)->get_length ();
 }
 
 void
 Folded_repeat_iterator::enter_alternative ()
 {
-  Repeated_music *  mus = dynamic_cast<Repeated_music *> (get_music ());  
-  if (mus->alternatives ())
+  Music *mus = get_music ();
+  if (scm_is_pair (Repeated_music::alternatives (mus)))
     {
       /*
 	ugh.
-      */ 
-      Simultaneous_music_iterator * s = new Simultaneous_music_iterator;
+      */
+      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 ();
 
-      scm_gc_unprotect_object (s->self_scm ());
+      s->unprotect ();
     }
 }
 
-
-Music_iterator*
-Folded_repeat_iterator::try_music_in_children (Music * m) const
+Music_iterator *
+Folded_repeat_iterator::try_music_in_children (Music *m) const
 {
   if (main_iter_)
-    {
-      return main_iter_->try_music (m);
-    }
+    return main_iter_->try_music (m);
   if (alternative_iter_)
     return alternative_iter_->try_music (m);
   return 0;
 }
 void
-Folded_repeat_iterator::derived_mark ()const
+Folded_repeat_iterator::derived_mark () const
 {
   if (main_iter_)
     scm_gc_mark (main_iter_->self_scm ());
@@ -141,12 +132,12 @@ Folded_repeat_iterator::derived_mark ()const
 }
 
 void
-Folded_repeat_iterator::derived_substitute (Context *f, Context *t) 
+Folded_repeat_iterator::derived_substitute (Context *f, Context *t)
 {
   if (main_iter_)
-    main_iter_->substitute_outlet (f,t);
+    main_iter_->substitute_outlet (f, t);
   if (alternative_iter_)
-    alternative_iter_->substitute_outlet (f,t);
+    alternative_iter_->substitute_outlet (f, t);
 }
 
 IMPLEMENT_CTOR_CALLBACK (Folded_repeat_iterator);