release: 1.3.92

[lilypond.git] / lily / request-chord-iterator.cc

diff --git a/lily/request-chord-iterator.cc b/lily/request-chord-iterator.cc
index 1c70b3dfb7dac6d1bb188b009ac22fd85a882b32..aaeeeecac7bcb5427fad13d5c56aa341d839d8e3 100644 (file)
--- a/lily/request-chord-iterator.cc
+++ b/lily/request-chord-iterator.cc
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c)  1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c)  1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
 */
 
 #include "translator-group.hh"
@@ -12,73 +12,75 @@
 #include "music-list.hh"
 #include "request.hh"
 
-
-
-void
-Request_chord_iterator::construct_children()
+Request_chord_iterator::Request_chord_iterator ()
 {
-  elt_length_mom_ =elt_l ()->length_mom ();
-  get_req_translator_l();
 }
 
-Request_chord*
-Request_chord_iterator::elt_l () const
+Request_chord_iterator::Request_chord_iterator (Request_chord_iterator const &src)
+  : Simple_music_iterator (src)
 {
-  return (Request_chord*) music_l_;
 }
 
-Request_chord_iterator::Request_chord_iterator ()
+Translator_group*
+Request_chord_iterator::get_req_translator_l ()
 {
-  last_b_ = false;
-  //  cursor_ = elt_l ()->music_p_list_p_->head_;
-  cursor_ = 0;
-}
+  assert (report_to_l ());
+  if (report_to_l ()->is_bottom_translator_b ())
+    return report_to_l ();
 
+  set_translator (report_to_l ()->get_default_interpreter ());
+  return report_to_l ();
+}
 
-bool
-Request_chord_iterator::ok() const
+void
+Request_chord_iterator::construct_children()
 {
-  return (elt_length_mom_ && !last_b_) || first_b_;
+  Simple_music_iterator::construct_children ();
+  get_req_translator_l();
 }
 
-Moment
-Request_chord_iterator::next_moment() const
+Request_chord*
+Request_chord_iterator::elt_l () const
 {
-  Moment m (0);
-  if  (!first_b_)
-    m = elt_length_mom_;
-  return m;
+  return (Request_chord*) music_l_;
 }
 
-
-void
-Request_chord_iterator::do_print() const
+SCM
+Request_chord_iterator::get_music (Moment) const
 {
-#ifndef NPRINT
-  DOUT << "duration: " << elt_length_mom_;
-#endif
+  SCM s = SCM_EOL;
+  if (last_processed_mom_ < Moment (0))
+    {
+      Music_sequence * ms = dynamic_cast<Music_sequence*> (music_l_);
+     
+      for (SCM m = ms->music_list (); gh_pair_p (m); m = gh_cdr (m))
+       {
+         s = gh_cons (gh_car (m) , s);
+       }
+    }
+  return s;
 }
 
 void
-Request_chord_iterator::do_process_and_next (Moment mom)
+Request_chord_iterator::process (Moment m)
 {
-  if (first_b_)
+  if (last_processed_mom_ < Moment (0))
     {
-      for (Cons<Music> *i = elt_l ()->music_p_list_p_->head_; i; i = i->next_)
+      for (SCM s = dynamic_cast<Music_sequence *> (music_l_)->music_list ();
+          gh_pair_p (s);  s = gh_cdr (s))
        {
-         if (Request * req_l = dynamic_cast<Request*> (i->car_))
+         Music *mus = unsmob_music (gh_car (s));
+
+         if (Request * req_l = dynamic_cast<Request*> (mus))
            {
              bool gotcha = try_music (req_l);
              if (!gotcha)
-               req_l->warning (_f ("Junking request: `%s'", classname( req_l)));
+               req_l->origin ()->warning (_f ("Junking request: `%s'", classname( req_l)));
            }
          else
-           i->car_->warning (_f ("Huh?  Not a Request: `%s'",
-                                  classname (i->car_)));
+           mus->origin ()->warning (_f ("Huh?  Not a Request: `%s'",
+                                        classname (mus)));
        }
-      first_b_ = false;
     }
-
-  if (mom >= elt_length_mom_)
-    last_b_ = true;
+  skip (m);
 }