Imported sources

[lilypond.git] / lily / include / music-wrapper-iterator.hh

diff --git a/lily/include/music-wrapper-iterator.hh b/lily/include/music-wrapper-iterator.hh
index 02a4e97fa0089fd9a415054bb6308957d3190f31..006d3dce14a2038dc7beb95856b232cef284f475 100644 (file)
--- a/lily/include/music-wrapper-iterator.hh
+++ b/lily/include/music-wrapper-iterator.hh
@@ -1,9 +1,9 @@
 /*   
-  music-wrapper-iterator.hh -- declare 
+  music-wrapper-iterator.hh -- declare Music_wrapper_iterator
   
   source file of the GNU LilyPond music typesetter
   
-  (c) 1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 1998--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   
  */
 
@@ -13,19 +13,30 @@
 #include "music.hh"
 #include "music-iterator.hh"
 
+/** 
+  The iterator for a #Music_wrapper#.  Since #Music_wrapper# essentially
+  does nothing, this iterator creates a child iterator and delegates
+  all work to that child.
+ */
 class Music_wrapper_iterator : public Music_iterator
 {
-  Music_iterator *child_iter_p_;
-  Music_wrapper *music_wrapper_l();
 public:
+  DECLARE_SCHEME_CALLBACK(constructor, ());  
   Music_wrapper_iterator ();
-  ~Music_wrapper_iterator ();
-  virtual void do_print () const;
-  virtual void construct_children  () ;
-  virtual void do_process_and_next (Moment) ;
-  virtual Moment next_moment () const;
+
+  virtual void derived_substitute (Translator_group*f, Translator_group*t) ;
+
+  virtual void derived_mark () const;
+  virtual void construct_children () ;
+  virtual Moment pending_moment () const;
+  virtual void do_quit(); 
   virtual bool ok () const;
-  
+  virtual bool run_always () const;
+protected:
+  virtual void process (Moment);
+  virtual Music_iterator *try_music_in_children (Music *) const;
+
+  Music_iterator *child_iter_;
 };
 
 #endif /* MUSIC_WRAPPER_ITERATOR_HH */