2003 -> 2004

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

diff --git a/lily/performer-group-performer.cc b/lily/performer-group-performer.cc
index e8d1045e65e299b535c10a6ab8da559951218e6b..f6dbca818f502d49fc32f26596710ef492877407 100644 (file)
--- a/lily/performer-group-performer.cc
+++ b/lily/performer-group-performer.cc
@@ -1,18 +1,93 @@
 /*
   performer-group-performer.cc -- implement Performer_group_performer
 
-  (c) 1996, 1997 Han-Wen Nienhuys <hanwen@stack.nl>
-                 Jan Nieuwenhuizen <jan@digicash.com>
+  source file of the GNU LilyPond music typesetter
+
+  (c) 1996--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+               Jan Nieuwenhuizen <janneke@gnu.org>
  */
 
-#if 0
-    bool try_request( Request* req_l )
+#include "performer-group-performer.hh"
+
+#include "audio-element.hh"
+#include "warn.hh"
+
+
+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 ())
     {
-        bool hebbes_b =false;
-        for (int i =0; !hebbes_b && i < nongroup_l_arr_.size() ; i++)
-            hebbes_b =nongroup_l_arr_[i]->try_request(req_l);
-        if (!hebbes_b)
-            hebbes_b = daddy_grav_l_->try_request(req_l);
-        return hebbes_b ;
+#if 0  //printf?  -> include <stdio.h>     
+      printf ("do_announces: elt: %s\n",
+             classname (announce_infos_[0].elem_));
+#endif      
+      announce_infos_.clear ();
     }
-#endif
+}
+
+Performer_group_performer::Performer_group_performer(){}