source file of the GNU LilyPond music typesetter
- (c) 1997--2005 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1997--2006 Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "performer.hh"
#include "audio-item.hh"
-#include "music.hh"
#include "duration.hh"
+#include "stream-event.hh"
+
+#include "translator.icc"
class Tempo_performer : public Performer
{
protected:
- virtual bool try_music (Music *event);
void stop_translation_timestep ();
- virtual void create_audio_elements ();
-
+ void process_music ();
+ DECLARE_TRANSLATOR_LISTENER (metronome_change);
private:
- Music *tempo_event_;
+ Stream_event *tempo_event_;
Audio_tempo *audio_;
};
}
void
-Tempo_performer::create_audio_elements ()
+Tempo_performer::process_music ()
{
if (tempo_event_)
{
Rational r = (d->get_length () / Moment (Rational (1, 4)) * Moment (scm_to_int (met))).main_part_;
- audio_ = new Audio_tempo (int (r));
+ audio_ = new Audio_tempo (r.to_int ());
Audio_element_info info (audio_, tempo_event_);
announce_element (info);
}
}
-bool
-Tempo_performer::try_music (Music *event)
+IMPLEMENT_TRANSLATOR_LISTENER (Tempo_performer, metronome_change);
+void
+Tempo_performer::listen_metronome_change (Stream_event *event)
{
- if (tempo_event_)
- return false;
-
tempo_event_ = event;
- return true;
}
-#include "translator.icc"
-
ADD_TRANSLATOR (Tempo_performer, "", "",
"metronome-change-event",
"", "");