/*
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 "context.hh"
+#include "audio-element.hh"
+#include "warn.hh"
+
+ADD_TRANSLATOR (Performer_group_performer,
+/* descr */ "",
+/* creats*/ "",
+/* accepts */ "",
+/* acks */ "",
+/* reads */ "",
+/* write */ "");
+
+
+
+void
+Performer_group_performer::announce_element (Audio_element_info info)
+{
+ announce_infos_.push (info);
+ Translator *t
+ = context ()->get_parent_context ()->implementation ();
+
+ if (Performer_group_performer * eg = dynamic_cast<Performer_group_performer*> (t))
+ eg->announce_element (info);
+}
+
+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 (); scm_is_pair (p); p = scm_cdr (p))
+ {
+ Translator * t = unsmob_translator (scm_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 ()
+{
+ while (1)
+ {
+ create_audio_elements ();
+ performer_each (get_simple_trans_list (),
+ &Performer::create_audio_elements);
+
+ if (!announce_infos_.size ())
+ break ;
+
+ acknowledge_audio_elements ();
+ announce_infos_.clear ();
+ }
+}
+
+Performer_group_performer::Performer_group_performer ()
+{
+}
+
+
+void
+performer_each (SCM list, Performer_method method)
+{
+ for (SCM p = list; scm_is_pair (p); p = scm_cdr (p))
{
- 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 ;
+ Performer * e = dynamic_cast<Performer*>(unsmob_translator (scm_car (p)));
+ if (e)
+ (e->*method) ();
}
-#endif
+}