* The grand 2005-2006 replace.

[lilypond.git] / lily / sequential-music-iterator.cc

diff --git a/lily/sequential-music-iterator.cc b/lily/sequential-music-iterator.cc
index 18d9a4915a7d25967ce726543de47c52b1211d61..f933df7bb43330d82351adf8fae1bd8283444196 100644 (file)
--- a/lily/sequential-music-iterator.cc
+++ b/lily/sequential-music-iterator.cc
@@ -1,173 +1,20 @@
 /*
-  Sequential_music_iterator.cc -- implement Sequential_music_iterator
+  sequential-music-iterator.cc -- implement Sequential_music_iterator
 
   source file of the GNU LilyPond music typesetter
 
-  (c)  1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
-#include "grace-iterator.hh"
-#include "translator-group.hh"
-#include "debug.hh"
-#include "sequential-music-iterator.hh"
-#include "music-list.hh"
-#include "request-chord-iterator.hh"
-
-Sequential_music_iterator::Sequential_music_iterator ()
-{
-  cursor_ = 0;
-  here_mom_ = 0;
-  iter_p_ =0;
-}
-
-Sequential_music_iterator::Sequential_music_iterator (Sequential_music_iterator const &src)
-  : Music_iterator (src)
-{
-  cursor_ = src.cursor_;
-  here_mom_ = src.here_mom_;
-  iter_p_ = src.iter_p_->clone ();
-}
-
-Sequential_music_iterator::~Sequential_music_iterator()
-{
-  if (iter_p_)
-    {
-      /*      if (iter_p_->ok () )
-       music_l_->origin ()->warning (_ ("Must stop before this music ends"));
-      */
-      delete iter_p_;
-      iter_p_ = 0;
-    }
-}
-
-
-void
-Sequential_music_iterator::construct_children()
-{
-  cursor_ = dynamic_cast<Music_sequence const*> (music_l_)->music_list ();
-  
-  while (gh_pair_p (cursor_ ))
-    {
-      start_next_element();
-      if (!iter_p_->ok()) 
-       {
-         leave_element();
-       }
-      else 
-       {
-         set_sequential_music_translator();
-         break;
-       }
-    }
-}
 
-void 
-Sequential_music_iterator::leave_element()
-{
-  delete iter_p_;
-  iter_p_ =0;
-  Moment elt_time = unsmob_music (gh_car (cursor_))->length_mom ();
-  here_mom_ += elt_time;
-  cursor_ =gh_cdr (cursor_);
-}
-
-void
-Sequential_music_iterator::start_next_element()
-{
-  assert (!iter_p_);
-  iter_p_ = get_iterator_p (unsmob_music (gh_car (cursor_)));
-}
-
-void
-Sequential_music_iterator::set_sequential_music_translator()
-{
-  Translator_group  * child_report = child_report = iter_p_->report_to_l ();
-  if (dynamic_cast<Grace_iterator*> (iter_p_))
-    child_report = child_report->daddy_trans_l_;
-    
-  if (report_to_l()->depth_i () < child_report->depth_i ())
-    set_translator (child_report);
-}
+#include "context.hh"
+#include "sequential-music-iterator.hh"
+#include "music.hh"
+#include "warn.hh"
 
+IMPLEMENT_CTOR_CALLBACK (Sequential_music_iterator);
 
 SCM
-Sequential_music_iterator::get_music (Moment until) const
+Sequential_music_iterator::get_music_list ()const
 {
-  Sequential_music_iterator* i = dynamic_cast<Sequential_music_iterator *> (this->clone ());
-  SCM s = SCM_EOL;
-  while (1) 
-      {
-       Moment local_until = until - i->here_mom_;
-       while (i->iter_p_->ok ()) 
-         {
-           Moment here = i->iter_p_->pending_moment ();
-           if (here != local_until)
-             goto finalise;
-           
-           s = gh_append2 (i->iter_p_->get_music (local_until), s);
-           i->iter_p_->skip (local_until);
-         }
-         
-         if (!i->iter_p_->ok ()) 
-           {
-             i->leave_element ();
-             
-             if (gh_pair_p (i->cursor_))
-               i->start_next_element ();
-             else
-               goto finalise;
-           }
-       }
- finalise:
-  delete i;
-  return s;
-}
-
-void
-Sequential_music_iterator::process (Moment until)
-{
-  if (ok ())
-    {
-      while (1) 
-       {
-         Moment local_until = until - here_mom_;
-         while (iter_p_->ok ()) 
-           {
-             Moment here = iter_p_->pending_moment ();
-             if (here != local_until)
-               return ;
-             
-             iter_p_->process (local_until);
-           }
-         
-         if (!iter_p_->ok ()) 
-           {
-             set_sequential_music_translator ();
-             leave_element ();
-             
-             if (gh_pair_p (cursor_))
-               start_next_element ();
-             else 
-               return ;
-           }
-       }
-    }
-}
-
-Moment
-Sequential_music_iterator::pending_moment() const
-{
-  return iter_p_->pending_moment() + here_mom_;
-}
-
-
-bool
-Sequential_music_iterator::ok() const
-{
-  return iter_p_;
-}
-
-Music_iterator*
-Sequential_music_iterator::try_music_in_children (Music *m) const
-{ 
-  return iter_p_ ? iter_p_->try_music (m) : 0;
+  return get_music ()->get_property ("elements");
 }