source file of the GNU LilyPond music typesetter
- (c) 1999--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1999--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "repeated-music.hh"
#include "music-list.hh"
-#include "musical-pitch.hh"
+#include "pitch.hh"
#include "debug.hh"
Music *
Music_sequence*
Repeated_music::alternatives ()const
{
- return dynamic_cast<Music_sequence*> (unsmob_music (get_mus_property ("alternatives")));
+ return dynamic_cast<Music_sequence*> (unsmob_music (get_mus_property ("alternatives")));
}
-Repeated_music::Repeated_music(Music *beg, int times, Music_sequence * alts)
-{
- if (beg)
- {
- set_mus_property ("body", beg->self_scm ());
- scm_unprotect_object (beg->self_scm ());
- }
- fold_b_ = false;
- repeats_i_ = times;
- volta_fold_b_ = true;
- if (alts)
- {
- alts->truncate (times);
- set_mus_property ("alternatives", alts->self_scm ());
- scm_unprotect_object (alts->self_scm ());
- }
-}
-Repeated_music::Repeated_music (Repeated_music const &s)
- : Music (s)
+Repeated_music::Repeated_music (SCM l)
+ : Music (l)
{
- repeats_i_ = s.repeats_i_;
- fold_b_ = s.fold_b_;
- volta_fold_b_ = s.volta_fold_b_;
- type_ = s.type_;
+ set_mus_property ("type", ly_symbol2scm ("repeated-music"));
}
-Musical_pitch
-Repeated_music::to_relative_octave (Musical_pitch p)
+Pitch
+Repeated_music::to_relative_octave (Pitch p)
{
if (body ())
p = body ()->to_relative_octave (p);
- Musical_pitch last = p ;
+ Pitch last = p ;
if (alternatives ())
for (SCM s = alternatives ()->music_list (); gh_pair_p (s); s = gh_cdr (s))
unsmob_music (gh_car (s))->to_relative_octave (p);
}
void
-Repeated_music::transpose (Musical_pitch p)
+Repeated_music::transpose (Pitch p)
{
if (body ())
body ()->transpose (p);
}
Moment
-Repeated_music::alternatives_length_mom () const
+Repeated_music::alternatives_length_mom (bool fold) const
{
- if (!alternatives () )
+ if (!alternatives ())
return 0;
- if (fold_b_)
+ if (fold)
return alternatives ()->maximum_length ();
Moment m =0;
int done =0;
SCM p = alternatives ()->music_list ();
- while (gh_pair_p (p) && done < repeats_i_)
+ while (gh_pair_p (p) && done < repeat_count ())
{
m = m + unsmob_music (gh_car (p))->length_mom ();
done ++;
- if (volta_fold_b_
- || repeats_i_ - done < alternatives ()->length_i ())
+ if (repeat_count () - done < alternatives ()->length_i ())
+ p = gh_cdr (p);
+ }
+ return m;
+}
+
+/*
+ Sum all duration of all available alternatives. This is for the case
+ of volta repeats, where the alternatives are iterated just as they
+ were entered. */
+Moment
+Repeated_music::alternatives_volta_length_mom () const
+{
+ if (!alternatives ())
+ return 0;
+
+ Moment m;
+ SCM p = alternatives ()->music_list ();
+ while (gh_pair_p (p))
+ {
+ m = m + unsmob_music (gh_car (p))->length_mom ();
p = gh_cdr (p);
}
return m;
}
+
+/*
+ Length of the body in THIS. Disregards REPEAT-COUNT.
+ */
Moment
Repeated_music::body_length_mom () const
{
if (body ())
{
m = body ()->length_mom ();
- if (!fold_b_ && !volta_fold_b_)
- m *= Rational (repeats_i_);
}
return m;
}
-Moment
-Repeated_music::length_mom () const
+int
+Repeated_music::repeat_count () const
{
- return body_length_mom () + alternatives_length_mom ();
+ return gh_scm2int (get_mus_property ("repeat-count"));
}
+
+MAKE_SCHEME_CALLBACK (Repeated_music,unfolded_music_length, 1);
+MAKE_SCHEME_CALLBACK (Repeated_music,folded_music_length, 1);
+MAKE_SCHEME_CALLBACK (Repeated_music,volta_music_length, 1);
+
+SCM
+Repeated_music::unfolded_music_length (SCM m)
+{
+ Repeated_music* r = dynamic_cast<Repeated_music*> (unsmob_music (m));
+
+ Moment l = Moment (r->repeat_count ()) * r->body_length_mom () + r->alternatives_length_mom (false);
+ return l.smobbed_copy ();
+}
+
+SCM
+Repeated_music::folded_music_length (SCM m)
+{
+ Repeated_music* r = dynamic_cast<Repeated_music*> (unsmob_music (m));
+
+ Moment l = r->body_length_mom () + r->alternatives_length_mom (true);
+ return l.smobbed_copy ();
+}
+
+SCM
+Repeated_music::volta_music_length (SCM m)
+{
+ Repeated_music* r = dynamic_cast<Repeated_music*> (unsmob_music (m));
+ Moment l = r->body_length_mom () + r->alternatives_volta_length_mom ();
+ return l.smobbed_copy ();
+}
+
+ADD_MUSIC (Repeated_music);
+
+Repeated_music::Repeated_music ()
+ : Music (SCM_EOL)
+{
+ set_mus_property ("type", ly_symbol2scm ("repeated-music"));
+}