2 repeated-music.cc -- implement Repeated_music
4 source file of the GNU LilyPond music typesetter
6 (c) 1999--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "repeated-music.hh"
12 #include "music-list.hh"
15 #include "scm-option.hh"
18 Repeated_music::body ()const
20 return unsmob_music (get_property ("element"));
24 Repeated_music::alternatives ()const
26 return get_property ("elements");
30 Repeated_music::to_relative_octave (Pitch p)
32 if (lily_1_8_relative)
35 p = body ()->to_relative_octave (p);
40 lily_1_8_compatibility_used = true;
42 for (SCM s = alternatives (); scm_is_pair (s); s = scm_cdr (s))
43 unsmob_music (scm_car (s))->to_relative_octave (p);
50 return Music::to_relative_octave (p);
56 Repeated_music::alternatives_get_length (bool fold) const
62 return Music_sequence::maximum_length (alternatives ());
67 SCM p = alternatives ();
68 while (scm_is_pair (p) && done < repeat_count ())
70 m = m + unsmob_music (scm_car (p))->get_length ();
72 if (repeat_count () - done < scm_ilength (alternatives ()))
79 Sum all duration of all available alternatives. This is for the case
80 of volta repeats, where the alternatives are iterated just as they
83 Repeated_music::alternatives_volta_get_length () const
89 SCM p = alternatives ();
90 while (scm_is_pair (p))
92 m = m + unsmob_music (scm_car (p))->get_length ();
100 Length of the body in THIS. Disregards REPEAT-COUNT.
103 Repeated_music::body_get_length () const
108 m = body ()->get_length ();
114 Repeated_music::repeat_count () const
116 return scm_to_int (get_property ("repeat-count"));
120 MAKE_SCHEME_CALLBACK (Repeated_music,unfolded_music_length, 1);
121 MAKE_SCHEME_CALLBACK (Repeated_music,folded_music_length, 1);
122 MAKE_SCHEME_CALLBACK (Repeated_music,volta_music_length, 1);
125 Repeated_music::unfolded_music_length (SCM m)
127 Repeated_music* r = dynamic_cast<Repeated_music*> (unsmob_music (m));
129 Moment l = Moment (r->repeat_count ()) * r->body_get_length () + r->alternatives_get_length (false);
130 return l.smobbed_copy ();
134 Repeated_music::folded_music_length (SCM m)
136 Repeated_music* r = dynamic_cast<Repeated_music*> (unsmob_music (m));
138 Moment l = r->body_get_length () + r->alternatives_get_length (true);
139 return l.smobbed_copy ();
143 Repeated_music::volta_music_length (SCM m)
145 Repeated_music* r = dynamic_cast<Repeated_music*> (unsmob_music (m));
146 Moment l = r->body_get_length () + r->alternatives_volta_get_length ();
147 return l.smobbed_copy ();
150 ADD_MUSIC (Repeated_music);
152 Repeated_music::Repeated_music (SCM x)
158 MAKE_SCHEME_CALLBACK (Repeated_music,minimum_start, 1);
159 MAKE_SCHEME_CALLBACK (Repeated_music,first_start, 1);
162 Repeated_music::minimum_start (SCM m)
164 Music * me = unsmob_music (m);
165 Music * body = unsmob_music (me->get_property ("element"));
168 return body->start_mom ().smobbed_copy ();
171 return Music_sequence::minimum_start (me->get_property ("elements")).smobbed_copy ();
176 Repeated_music::first_start (SCM m)
178 Music * me = unsmob_music (m);
179 Music * body = unsmob_music (me->get_property ("element"));
181 Moment rv = (body) ? body->start_mom () :
182 Music_sequence::first_start (me->get_property ("elements"));
184 return rv.smobbed_copy ();