release: 1.3.106

[lilypond.git] / lily / midi-walker.cc

diff --git a/lily/midi-walker.cc b/lily/midi-walker.cc
index 81489c2ad0cfc7fe8045bce9a107c7e18eb21206..be00d45a8070c10031005a683cca6133b09ed948 100644 (file)
--- a/lily/midi-walker.cc
+++ b/lily/midi-walker.cc
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c)  1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c)  1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
          Jan Nieuwenhuizen <janneke@gnu.org>
  */
 
@@ -27,9 +27,10 @@ compare (Midi_note_event const& left, Midi_note_event const& right)
 }
 
 Midi_walker::Midi_walker (Audio_staff* audio_staff_l, Midi_track* track_l)
-  : PCursor<Audio_item*>(audio_staff_l->audio_item_l_list_)
 {
   track_l_ = track_l;
+  index_= 0;
+  item_l_arr_l_ = &audio_staff_l->audio_item_l_arr_;
   last_mom_ = 0;
 }
 
@@ -45,13 +46,14 @@ Midi_walker::~Midi_walker()
 void 
 Midi_walker::do_start_note (Midi_note* note_p)
 {
-  Moment stop_mom = note_p->duration() + ptr ()->audio_column_l_->at_mom ();
+  Audio_item* ptr = (*item_l_arr_l_)[index_];
+  Moment stop_mom = note_p->length_mom () + ptr->audio_column_l_->at_mom ();
   for (int i=0; i < stop_note_queue.size(); i++) 
     {
-      if (stop_note_queue[ i ].val->pitch_i() == note_p->pitch_i ()) 
+      if (stop_note_queue[i].val->pitch_i() == note_p->pitch_i ()) 
        {
-         if (stop_note_queue[ i ].key < stop_mom)
-           stop_note_queue[ i ].ignore_b_ = true;
+         if (stop_note_queue[i].key < stop_mom)
+           stop_note_queue[i].ignore_b_ = true;
          else {
            // skip the stopnote
            delete note_p;
@@ -64,8 +66,8 @@ Midi_walker::do_start_note (Midi_note* note_p)
   e.val = new Midi_note_off (note_p);
   e.key = stop_mom;
   stop_note_queue.insert (e);
-  
-  output_event (ptr()->audio_column_l_->at_mom (), note_p);
+      
+  output_event (ptr->audio_column_l_->at_mom (), note_p);
 }
 
 /**
@@ -84,7 +86,7 @@ Midi_walker::do_stop_notes (Moment max_mom)
        }
       
       Moment stop_mom = e.key;
-      Midi_note_off* note_p = e.val;
+      Midi_note* note_p = e.val;
        
       output_event (stop_mom, note_p);
     }
@@ -104,16 +106,35 @@ Midi_walker::output_event (Moment now_mom, Midi_item* l)
 void
 Midi_walker::process()
 {
-  do_stop_notes (ptr()->audio_column_l_->at_mom ());
+  Audio_item* audio_p = (*item_l_arr_l_)[index_];
+  do_stop_notes (audio_p->audio_column_l_->at_mom ());
 
-  Midi_item* p = ptr()->midi_item_p ();
-  if (!p)
-    return;
-  p->channel_i_ = track_l_->number_i_;
-  
-  if (p->name() != Midi_note::static_name ())
-    output_event (ptr()->audio_column_l_->at_mom (), p);
-  else
-    do_start_note ((Midi_note*)p);
+  /*
+    THIS IS A MEMORY LEAK. FIXME.
+   */
+  //Midi_item* p = ptr->midi_item_p ();
+  if (Midi_item* midi_p = Midi_item::midi_p (audio_p))
+    {
+      midi_p->channel_i_ = track_l_->number_i_;
+      if (Midi_note* note_p = dynamic_cast<Midi_note*>(midi_p))
+       {
+         if (note_p->length_mom ())
+           do_start_note (note_p);
+       }
+      else
+       output_event (audio_p->audio_column_l_->at_mom (), midi_p);
+    }
 }
 
+bool
+Midi_walker::ok () const
+{
+  return index_ <item_l_arr_l_->size ();
+}
+
+void
+Midi_walker::operator ++(int)
+{
+  assert (ok());
+  index_++;
+}