source file of the GNU LilyPond music typesetter
- (c) 1998 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1999--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "repeated-music.hh"
-#include "musical-pitch.hh"
+#include "music-list.hh"
+#include "pitch.hh"
+#include "debug.hh"
-Repeated_music::Repeated_music (Music* r, int n, Music_sequence* a)
+Music *
+Repeated_music::body ()const
{
- repeats_i_ = n;
- unfold_b_ = false;
- repeat_p_ = r;
- alternative_p_ = a;
+ return unsmob_music (get_mus_property ("element"));
}
-Repeated_music::~Repeated_music ()
+SCM
+Repeated_music::alternatives ()const
{
- delete repeat_p_;
- delete alternative_p_;
+ return get_mus_property ("elements");
}
-Repeated_music::Repeated_music (Repeated_music const& s)
- : Music (s)
+
+Repeated_music::Repeated_music (SCM l)
+ : Music (l)
+{
+ set_mus_property ("type", ly_symbol2scm ("repeated-music"));
+}
+
+
+Pitch
+Repeated_music::to_relative_octave (Pitch p)
{
- repeat_p_ = (s.repeat_p_) ? s.repeat_p_->clone () : 0;
- // urg?
- alternative_p_ = (s.alternative_p_) ? dynamic_cast <Music_sequence*> (s.alternative_p_->clone ()) : 0;
+ if (body ())
+ p = body ()->to_relative_octave (p);
+
+ Pitch last = p ;
+ if (alternatives ())
+ for (SCM s = alternatives (); gh_pair_p (s); s = ly_cdr (s))
+ unsmob_music (ly_car (s))->to_relative_octave (p);
+
+
+ return last;
}
void
-Repeated_music::do_print () const
+Repeated_music::transpose (Pitch p)
{
- if (repeat_p_)
- repeat_p_->print ();
- if (alternative_p_)
- alternative_p_->print ();
+ if (body ())
+ body ()->transpose (p);
+
+ Music_sequence::transpose_list (get_mus_property ("elements"), p);
}
void
-Repeated_music::transpose (Musical_pitch p)
+Repeated_music::compress (Moment p)
{
- if (repeat_p_)
- repeat_p_->transpose (p);
- if (alternative_p_)
- alternative_p_->transpose (p);
+ if (body ())
+ body ()->compress (p);
+
+ Music_sequence::compress_list (alternatives (), p);
}
Moment
-Repeated_music::duration () const
+Repeated_music::alternatives_length_mom (bool fold) const
{
+ if (!alternatives ())
+ return 0;
+
+ if (fold)
+ return Music_sequence::maximum_length (alternatives ());
+
+ Moment m =0;
+ int done =0;
+
+ SCM p = alternatives ();
+ while (gh_pair_p (p) && done < repeat_count ())
+ {
+ m = m + unsmob_music (ly_car (p))->length_mom ();
+ done ++;
+ if (repeat_count () - done < scm_ilength (alternatives ()))
+ p = ly_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;
- if (repeat_p_)
- m += repeat_p_->duration ();
- if (alternative_p_)
- m += alternative_p_->duration ();
+ SCM p = alternatives ();
+ while (gh_pair_p (p))
+ {
+ m = m + unsmob_music (ly_car (p))->length_mom ();
+ p = ly_cdr (p);
+ }
return m;
}
-Musical_pitch
-Repeated_music::to_relative_octave (Musical_pitch p)
+/*
+ Length of the body in THIS. Disregards REPEAT-COUNT.
+ */
+Moment
+Repeated_music::body_length_mom () const
+{
+ Moment m = 0;
+ if (body ())
+ {
+ m = body ()->length_mom ();
+ }
+ return m;
+}
+
+int
+Repeated_music::repeat_count () const
{
- p = repeat_p_->to_relative_octave (p);
+ return gh_scm2int (get_mus_property ("repeat-count"));
+}
+
- p = alternative_p_->do_relative_octave (p, false);
- return p;
+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));
- /* ugh. Should
- \relative c'' \repeat 2 { c4 } { < ... > }
+ Moment l = Moment (r->repeat_count ()) * r->body_length_mom () + r->alternatives_length_mom (false);
+ return l.smobbed_copy ();
+}
- and
-
- \relative c'' \repeat 2 { c4 }
- { { ...} }
+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 ();
+}
- behave differently?
- */
+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"));
}