source file of the GNU LilyPond music typesetter
- (c) 1997--2004 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1997--2006 Jan Nieuwenhuizen <janneke@gnu.org>
*/
+#include "performer.hh"
#include "audio-item.hh"
-#include "performer.hh"
+#include "music.hh"
+#include "duration.hh"
class Tempo_performer : public Performer
{
public:
- TRANSLATOR_DECLARATIONS(Tempo_performer);
+ TRANSLATOR_DECLARATIONS (Tempo_performer);
~Tempo_performer ();
protected:
- virtual bool try_music (Music* req);
- virtual void stop_translation_timestep ();
- virtual void create_audio_elements ();
+ virtual bool try_music (Music *event);
+ void stop_translation_timestep ();
+ void process_music ();
private:
-Music* tempo_req_;
- Audio_tempo* audio_;
+ Music *tempo_event_;
+ Audio_tempo *audio_;
};
Tempo_performer::Tempo_performer ()
{
- tempo_req_ = 0;
+ tempo_event_ = 0;
audio_ = 0;
}
{
}
-
void
-Tempo_performer::create_audio_elements ()
+Tempo_performer::process_music ()
{
- if (tempo_req_)
+ if (tempo_event_)
{
+ SCM met = tempo_event_->get_property ("metronome-count");
+ Duration *d = unsmob_duration (tempo_event_->get_property ("tempo-unit"));
- SCM met = tempo_req_->get_mus_property ("metronome-count");
- Duration *d = unsmob_duration (tempo_req_->get_mus_property ("tempo-unit"));
-
- Rational r = (d->get_length () / Moment (Rational (1, 4)) * Moment (gh_scm2int (met))).main_part_;
-
- audio_ = new Audio_tempo (int (r));
+ Rational r = (d->get_length () / Moment (Rational (1, 4)) * Moment (scm_to_int (met))).main_part_;
- Audio_element_info info (audio_, tempo_req_);
+ audio_ = new Audio_tempo (r.to_int ());
+
+ Audio_element_info info (audio_, tempo_event_);
announce_element (info);
- tempo_req_ = 0;
+ tempo_event_ = 0;
}
}
}
bool
-Tempo_performer::try_music (Music* req)
+Tempo_performer::try_music (Music *event)
{
- if (tempo_req_)
+ if (tempo_event_)
return false;
- tempo_req_ = req;
- return true;
+ tempo_event_ = event;
+ return true;
}
+#include "translator.icc"
-
-
-ENTER_DESCRIPTION (Tempo_performer, "","",
- "metronome-change-event",
- "","","" );
+ADD_TRANSLATOR (Tempo_performer, "", "",
+ "metronome-change-event",
+ "", "");