source file of the GNU LilyPond music typesetter
- (c) 1997--2005 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1997--2008 Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "audio-item.hh"
#include "performer.hh"
+#include "protected-scm.hh"
class Time_signature_performer : public Performer
{
protected:
- virtual void stop_translation_timestep ();
- virtual void create_audio_elements ();
-
+ void stop_translation_timestep ();
+ void process_music ();
+ virtual void derived_mark () const;
SCM prev_fraction_;
private:
- Audio_time_signature* audio_;
+ Audio_time_signature *audio_;
};
+void
+Time_signature_performer::derived_mark () const
+{
+ scm_gc_mark (prev_fraction_);
+}
Time_signature_performer::Time_signature_performer ()
{
{
}
-
void
-Time_signature_performer::create_audio_elements ()
+Time_signature_performer::process_music ()
{
SCM fr = get_property ("timeSignatureFraction");
- if (scm_is_pair (fr) && !ly_c_equal_p (fr, prev_fraction_))
+ if (scm_is_pair (fr) && !ly_is_equal (fr, prev_fraction_))
{
prev_fraction_ = fr;
int b = scm_to_int (scm_car (fr));
int o = scm_to_int (scm_cdr (fr));
-
- audio_ = new Audio_time_signature (b,o);
+
+ audio_ = new Audio_time_signature (b, o);
Audio_element_info info (audio_, 0);
announce_element (info);
-
}
}
{
if (audio_)
{
- play_element (audio_);
audio_ = 0;
}
}
-ADD_TRANSLATOR (Time_signature_performer,"","","","","","");
+#include "translator.icc"
+
+ADD_TRANSLATOR (Time_signature_performer,
+ /* doc */
+ "",
+
+ /* create */
+ "",
+
+ /* read */
+ "",
+
+ /* write */
+ ""
+ );