source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1997--2001 Jan Nieuwenhuizen <janneke@gnu.org>
*/
-#include "tempo-performer.hh"
#include "command-request.hh"
#include "audio-item.hh"
+#include "performer.hh"
+
+class Tempo_performer : public Performer
+{
+public:
+ TRANSLATOR_DECLARATIONS(Tempo_performer);
+ ~Tempo_performer ();
+
+protected:
+
+ virtual bool try_music (Music* req_l);
+ virtual void stop_translation_timestep ();
+ virtual void create_audio_elements ();
+
+private:
+ Tempo_req* tempo_req_l_;
+ Audio_tempo* audio_p_;
+};
+
+ENTER_DESCRIPTION (Tempo_performer, "","","","","" );
-ADD_THIS_TRANSLATOR (Tempo_performer);
Tempo_performer::Tempo_performer ()
{
{
}
-void
-Tempo_performer::do_print () const
-{
-#ifndef NPRINT
- if (tempo_req_l_)
- tempo_req_l_->print ();
-#endif
-}
void
-Tempo_performer::do_process_music ()
+Tempo_performer::create_audio_elements ()
{
if (tempo_req_l_)
{
- audio_p_ = new Audio_tempo (tempo_req_l_->dur_.length_mom () /
- Moment (1, 4)
- * Moment(tempo_req_l_->metronome_i_));
+
+ SCM met = tempo_req_l_->get_mus_property ("metronome-count");
+ Duration *d = unsmob_duration (tempo_req_l_->get_mus_property ("duration"));
+
+ Rational r = (d->length_mom () / Moment (Rational (1, 4)) * Moment (gh_scm2int (met))).main_part_;
+
+ audio_p_ = new Audio_tempo (int (r));
+
Audio_element_info info (audio_p_, tempo_req_l_);
announce_element (info);
tempo_req_l_ = 0;
}
void
-Tempo_performer::do_pre_move_processing ()
+Tempo_performer::stop_translation_timestep ()
{
if (audio_p_)
{
}
bool
-Tempo_performer::do_try_music (Music* req_l)
+Tempo_performer::try_music (Music* req_l)
{
if (tempo_req_l_)
return false;