X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fmusic-wrapper-iterator.cc;h=c96764a247c1403a1a94fc41b6242cb8f1d699c5;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=7798d65eaf001651ccd59417df16d1ed148008e8;hpb=d765f3af45be51f15da55cf570a4b172200e1035;p=lilypond.git

diff --git a/lily/music-wrapper-iterator.cc b/lily/music-wrapper-iterator.cc
index 7798d65eaf..c96764a247 100644
--- a/lily/music-wrapper-iterator.cc
+++ b/lily/music-wrapper-iterator.cc
@@ -1,47 +1,49 @@
-/*   
-  music-wrapper-iterator.cc --  implement Music_wrapper_iterator
-  
+/*
+  music-wrapper-iterator.cc -- implement Music_wrapper_iterator
+
   source file of the GNU LilyPond music typesetter
-  
-  (c) 1998--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
- */
 
+  (c) 1998--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
 
 #include "music-wrapper-iterator.hh"
 #include "music-wrapper.hh"
+#include "music.hh"
 
 Music_wrapper_iterator::Music_wrapper_iterator ()
 {
-  child_iter_ =0;
+  child_iter_ = 0;
 }
 
-Music_wrapper_iterator::Music_wrapper_iterator (Music_wrapper_iterator const &src)
-  : Music_iterator (src)
+void
+Music_wrapper_iterator::do_quit ()
 {
-  child_iter_ = (src.child_iter_) ? src.child_iter_->clone () : 0;
   if (child_iter_)
-    scm_gc_unprotect_object (child_iter_->self_scm());
+    child_iter_->quit ();
 }
 
 void
-Music_wrapper_iterator::do_quit()
+Music_wrapper_iterator::derived_mark () const
 {
-  child_iter_->quit();
+  if (child_iter_)
+    scm_gc_mark (child_iter_->self_scm ());
 }
 
 void
-Music_wrapper_iterator::derived_mark()const
+Music_wrapper_iterator::derived_substitute (Context *f, Context *t)
 {
   if (child_iter_)
-    scm_gc_mark (child_iter_->self_scm());
+    child_iter_->substitute_outlet (f, t);
 }
 
-
 void
 Music_wrapper_iterator::construct_children ()
 {
-  Music * m =  dynamic_cast<Music_wrapper const*> (get_music ())-> element();  
-  child_iter_ = unsmob_iterator (get_iterator (m));
+  Music *my_music = get_music ();
+  Music *child = unsmob_music (my_music->get_property ("element"));
+  child_iter_ = (child)
+    ? unsmob_iterator (get_iterator (child))
+    : 0;
 }
 
 bool
@@ -49,43 +51,27 @@ Music_wrapper_iterator::ok () const
 {
   return child_iter_ && child_iter_->ok ();
 }
-void
-Music_wrapper_iterator::skip (Moment m)
-{
-  /*
-    FIXME: should make sure that the initial try_music () is skipped as
-    well, if you would do
-
-    iter = get_iterator (Side_effect_music); // eg. property setting
-    iter->skip (1/2)
-    iter->process ()
-
-  */
-  child_iter_->skip (m);
-}
 
 void
 Music_wrapper_iterator::process (Moment m)
 {
-  child_iter_->process (m);
-}
-
-SCM
-Music_wrapper_iterator::get_pending_events (Moment m)const
-{
-  return child_iter_->get_pending_events (m);
+  if (child_iter_)
+    child_iter_->process (m);
 }
 
 Moment
 Music_wrapper_iterator::pending_moment () const
 {
-  return child_iter_->pending_moment ();
+  if (child_iter_)
+    return child_iter_->pending_moment ();
+  else
+    return Music_iterator::pending_moment ();
 }
 
-Music_iterator*
-Music_wrapper_iterator::try_music_in_children (Music *m) const
+IMPLEMENT_CTOR_CALLBACK (Music_wrapper_iterator);
+
+bool
+Music_wrapper_iterator::run_always () const
 {
-  return child_iter_->try_music (m);
+  return (child_iter_ &&  child_iter_->run_always ());
 }
-
-IMPLEMENT_CTOR_CALLBACK (Music_wrapper_iterator);