/*
note-performer.cc -- implement Note_performer
- (c) 1996, 1997 Han-Wen Nienhuys <hanwen@stack.nl>
- Jan Nieuwenhuizen <jan@digicash.com>
- */
+ source file of the GNU LilyPond music typesetter
-#if 0
-#include "note-performer.hh"
+ (c) 1996--2006 Jan Nieuwenhuizen <janneke@gnu.org>
+*/
-void
-process_request()
+#include "performer.hh"
+#include "audio-item.hh"
+#include "audio-column.hh"
+#include "global-context.hh"
+#include "stream-event.hh"
+#include "warn.hh"
+
+#include "translator.icc"
+
+/**
+ Convert evs to audio notes.
+*/
+class Note_performer : public Performer
+{
+public:
+ TRANSLATOR_DECLARATIONS (Note_performer);
+
+protected:
+ void stop_translation_timestep ();
+ void process_music ();
+
+ DECLARE_TRANSLATOR_LISTENER (note);
+private:
+ vector<Stream_event*> note_evs_;
+ vector<Audio_note*> notes_;
+};
+
+void
+Note_performer::process_music ()
+{
+ if (note_evs_.size ())
+ {
+ int transposing = 0;
+
+ SCM prop = get_property ("instrumentTransposition");
+ if (unsmob_pitch (prop))
+ transposing = unsmob_pitch (prop)->semitone_pitch ();
+
+ while (note_evs_.size ())
+ {
+ Stream_event *n = note_evs_.back ();
+ note_evs_.pop_back ();
+ SCM pit = n->get_property ("pitch");
+
+ if (Pitch *pitp = unsmob_pitch (pit))
+ {
+ SCM articulations = n->get_property ("articulations");
+ Stream_event *tie_event = 0;
+ for (SCM s = articulations;
+ !tie_event && scm_is_pair (s);
+ s = scm_cdr (s))
+ {
+ Stream_event *ev = unsmob_stream_event (scm_car (s));
+ if (!ev)
+ continue;
+
+ if (ev->in_event_class ("tie-event"))
+ tie_event = ev;
+ }
+
+ Audio_note *p = new Audio_note (*pitp, get_event_length (n),
+ tie_event, - transposing);
+ Audio_element_info info (p, n);
+ announce_element (info);
+ notes_.push_back (p);
+ }
+ }
+ note_evs_.clear ();
+ }
+}
+
+void
+Note_performer::stop_translation_timestep ()
+{
+ // why don't grace notes show up here?
+ // --> grace notes effectively do not get delayed
+ notes_.clear ();
+ note_evs_.clear ();
+}
+
+IMPLEMENT_TRANSLATOR_LISTENER (Note_performer, note)
+void
+Note_performer::listen_note (Stream_event *ev)
+{
+ note_evs_.push_back (ev);
+}
+
+ADD_TRANSLATOR (Note_performer, "", "",
+ "", "");
+
+Note_performer::Note_performer ()
{
- if ( when() == off_mom_ )
- play_event( Note_event( current_l_->pitch() ) );
}
-#endif