source file of the GNU LilyPond music typesetter
- (c) 1996, 1997--1998 Han-Wen Nienhuys <hanwen@stack.nl>
- Jan Nieuwenhuizen <jan@digicash.com>
- */
+ (c) 1996--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ Jan Nieuwenhuizen <janneke@gnu.org>
+*/
#include "performer-group-performer.hh"
-#include "debug.hh"
+#include "context.hh"
+#include "audio-element.hh"
+#include "warn.hh"
-IMPLEMENT_IS_TYPE_B2(Performer_group_performer,Performer, Translator_group);
-ADD_THIS_TRANSLATOR(Performer_group_performer);
+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))
+ {
+ Performer *e = dynamic_cast<Performer *> (unsmob_translator (scm_car (p)));
+ if (e)
+ (e->*method) ();
+ }
+}