* lily/spacing-engraver.cc (finalize): robustifications.

[lilypond.git] / lily / performer-group-performer.cc

diff --git a/lily/performer-group-performer.cc b/lily/performer-group-performer.cc
index 510ff51e221c5ee2e4a8998ad190c0ec93417084..74edd0236b5fa1646d1285a58eccdfef9b27a34e 100644 (file)
--- a/lily/performer-group-performer.cc
+++ b/lily/performer-group-performer.cc
@@ -3,14 +3,91 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 1996,  1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 1996--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
                Jan Nieuwenhuizen <janneke@gnu.org>
  */
 
 #include "performer-group-performer.hh"
 
-#include "debug.hh"
+#include "audio-element.hh"
+#include "warn.hh"
 
-IMPLEMENT_IS_TYPE_B2(Performer_group_performer,Performer, Translator_group);
-ADD_THIS_TRANSLATOR(Performer_group_performer);
 
+ENTER_DESCRIPTION(Performer_group_performer,
+/* descr */       "",
+/* creats*/       "",
+/* accepts */     "",
+/* acks  */      "",
+/* reads */       "",
+/* write */       "");
+
+
+
+void
+Performer_group_performer::announce_element (Audio_element_info info)
+{
+  announce_infos_.push (info);
+  Performer::announce_element (info);
+}
+
+
+
+void
+Performer_group_performer::create_audio_elements ()
+{
+  for (SCM p = get_simple_trans_list (); gh_pair_p (p); p = ly_cdr (p))
+    {
+      Translator * t = unsmob_translator (ly_car (p));
+      Performer * eng = dynamic_cast<Performer*> (t);
+      if (eng)
+       eng->create_audio_elements ();
+    }
+}
+
+void
+Performer_group_performer::acknowledge_audio_elements ()
+{
+  for (int j =0; j < announce_infos_.size (); j++)
+    {
+      Audio_element_info info = announce_infos_[j];
+
+      for (SCM p = get_simple_trans_list (); gh_pair_p (p); p = ly_cdr (p))
+       {
+         Translator * t = unsmob_translator (ly_car (p));
+         Performer * eng = dynamic_cast<Performer*> (t);
+         if (eng && eng!= info.origin_trans_)
+           eng->acknowledge_audio_element (info);
+       }
+    }
+}
+
+void
+Performer_group_performer::do_announces ()
+{
+  for (SCM p = trans_group_list_; gh_pair_p (p); p =ly_cdr (p))
+    {
+      Translator * t = unsmob_translator (ly_car (p));
+      dynamic_cast<Performer_group_performer*> (t)->do_announces ();
+    }
+
+  
+  create_audio_elements ();
+    
+  while (announce_infos_.size ())
+    {
+      acknowledge_audio_elements ();
+      announce_infos_.clear ();
+      create_audio_elements ();
+    }
+
+  if (announce_infos_.size ())
+    {
+#if 0  //printf?  -> include <stdio.h>     
+      printf ("do_announces: elt: %s\n",
+             classname (announce_infos_[0].elem_));
+#endif      
+      announce_infos_.clear ();
+    }
+}
+
+Performer_group_performer::Performer_group_performer(){}