2 performer-group-performer.cc -- implement Performer_group
4 source file of the GNU LilyPond music typesetter
6 (c) 1996--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
7 Jan Nieuwenhuizen <janneke@gnu.org>
10 #include "performer-group.hh"
13 #include "audio-element.hh"
16 ADD_TRANSLATOR_GROUP (Performer_group,
23 Performer_group::announce_element (Audio_element_info info)
25 announce_infos_.push_back (info);
27 = context ()->get_parent_context ()->implementation ();
29 if (Performer_group *eg = dynamic_cast<Performer_group *> (t))
30 eg->announce_element (info);
34 Performer_group::acknowledge_audio_elements ()
36 for (vsize j = 0; j < announce_infos_.size (); j++)
38 Audio_element_info info = announce_infos_[j];
40 for (SCM p = get_simple_trans_list (); scm_is_pair (p); p = scm_cdr (p))
42 Translator *t = unsmob_translator (scm_car (p));
43 Performer *eng = dynamic_cast<Performer *> (t);
44 if (eng && eng != info.origin_trans_)
45 eng->acknowledge_audio_element (info);
51 performer_each (SCM list, Performer_method method)
53 for (SCM p = list; scm_is_pair (p); p = scm_cdr (p))
55 Performer *e = dynamic_cast<Performer *> (unsmob_translator (scm_car (p)));
62 Performer_group::do_announces ()
64 for (SCM s = context ()->children_contexts ();
65 scm_is_pair (s); s = scm_cdr (s))
67 Context *c = unsmob_context (scm_car (s));
68 Performer_group *group
69 = dynamic_cast<Performer_group *> (c->implementation ());
71 group->do_announces ();
76 performer_each (get_simple_trans_list (),
77 &Performer::create_audio_elements);
79 if (!announce_infos_.size ())
82 acknowledge_audio_elements ();
83 announce_infos_.clear ();