2 repeated-music.cc -- implement Repeated_music
4 source file of the GNU LilyPond music typesetter
6 (c) 1999--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "repeated-music.hh"
11 #include "music-list.hh"
14 #include "music-sequence.hh"
17 Repeated_music::body ()const
19 return unsmob_music (get_mus_property ("element"));
23 Repeated_music::alternatives ()const
25 return get_mus_property ("elements");
32 Repeated_music::to_relative_octave (Pitch p)
34 if (lily_1_8_relative)
37 p = body ()->to_relative_octave (p);
41 for (SCM s = alternatives (); gh_pair_p (s); s = ly_cdr (s))
42 unsmob_music (ly_car (s))->to_relative_octave (p);
49 return Music::to_relative_octave (p);
55 Repeated_music::alternatives_get_length (bool fold) const
61 return Music_sequence::maximum_length (alternatives ());
66 SCM p = alternatives ();
67 while (gh_pair_p (p) && done < repeat_count ())
69 m = m + unsmob_music (ly_car (p))->get_length ();
71 if (repeat_count () - done < scm_ilength (alternatives ()))
78 Sum all duration of all available alternatives. This is for the case
79 of volta repeats, where the alternatives are iterated just as they
82 Repeated_music::alternatives_volta_get_length () const
88 SCM p = alternatives ();
91 m = m + unsmob_music (ly_car (p))->get_length ();
99 Length of the body in THIS. Disregards REPEAT-COUNT.
102 Repeated_music::body_get_length () const
107 m = body ()->get_length ();
113 Repeated_music::repeat_count () const
115 return gh_scm2int (get_mus_property ("repeat-count"));
119 MAKE_SCHEME_CALLBACK (Repeated_music,unfolded_music_length, 1);
120 MAKE_SCHEME_CALLBACK (Repeated_music,folded_music_length, 1);
121 MAKE_SCHEME_CALLBACK (Repeated_music,volta_music_length, 1);
124 Repeated_music::unfolded_music_length (SCM m)
126 Repeated_music* r = dynamic_cast<Repeated_music*> (unsmob_music (m));
128 Moment l = Moment (r->repeat_count ()) * r->body_get_length () + r->alternatives_get_length (false);
129 return l.smobbed_copy ();
133 Repeated_music::folded_music_length (SCM m)
135 Repeated_music* r = dynamic_cast<Repeated_music*> (unsmob_music (m));
137 Moment l = r->body_get_length () + r->alternatives_get_length (true);
138 return l.smobbed_copy ();
142 Repeated_music::volta_music_length (SCM m)
144 Repeated_music* r = dynamic_cast<Repeated_music*> (unsmob_music (m));
145 Moment l = r->body_get_length () + r->alternatives_volta_get_length ();
146 return l.smobbed_copy ();
149 ADD_MUSIC (Repeated_music);
151 Repeated_music::Repeated_music ()
157 MAKE_SCHEME_CALLBACK (Repeated_music,minimum_start, 1);
158 MAKE_SCHEME_CALLBACK (Repeated_music,first_start, 1);
161 Repeated_music::minimum_start (SCM m)
163 Music * me = unsmob_music (m);
164 Music * body = unsmob_music (me->get_mus_property ("element"));
167 return body->start_mom ().smobbed_copy();
170 return Music_sequence::minimum_start (me->get_mus_property ("elements")).smobbed_copy();
175 Repeated_music::first_start (SCM m)
177 Music * me = unsmob_music (m);
178 Music * body = unsmob_music (me->get_mus_property ("element"));
180 Moment rv = (body) ? body->start_mom () :
181 Music_sequence::first_start (me->get_mus_property ("elements"));
183 return rv.smobbed_copy ();