2 repeated-music.cc -- implement Repeated_music
4 source file of the GNU LilyPond music typesetter
6 (c) 1999--2002 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)
35 p = body ()->to_relative_octave (p);
39 for (SCM s = alternatives (); gh_pair_p (s); s = ly_cdr (s))
40 unsmob_music (ly_car (s))->to_relative_octave (p);
47 Repeated_music::transpose (Pitch p)
50 body ()->transpose (p);
52 Music_sequence::transpose_list (get_mus_property ("elements"), p);
56 Repeated_music::compress (Moment p)
59 body ()->compress (p);
61 Music_sequence::compress_list (alternatives (), p);
65 Repeated_music::alternatives_get_length (bool fold) const
71 return Music_sequence::maximum_length (alternatives ());
76 SCM p = alternatives ();
77 while (gh_pair_p (p) && done < repeat_count ())
79 m = m + unsmob_music (ly_car (p))->get_length ();
81 if (repeat_count () - done < scm_ilength (alternatives ()))
88 Sum all duration of all available alternatives. This is for the case
89 of volta repeats, where the alternatives are iterated just as they
92 Repeated_music::alternatives_volta_get_length () const
98 SCM p = alternatives ();
101 m = m + unsmob_music (ly_car (p))->get_length ();
109 Length of the body in THIS. Disregards REPEAT-COUNT.
112 Repeated_music::body_get_length () const
117 m = body ()->get_length ();
123 Repeated_music::repeat_count () const
125 return gh_scm2int (get_mus_property ("repeat-count"));
129 MAKE_SCHEME_CALLBACK (Repeated_music,unfolded_music_length, 1);
130 MAKE_SCHEME_CALLBACK (Repeated_music,folded_music_length, 1);
131 MAKE_SCHEME_CALLBACK (Repeated_music,volta_music_length, 1);
134 Repeated_music::unfolded_music_length (SCM m)
136 Repeated_music* r = dynamic_cast<Repeated_music*> (unsmob_music (m));
138 Moment l = Moment (r->repeat_count ()) * r->body_get_length () + r->alternatives_get_length (false);
139 return l.smobbed_copy ();
143 Repeated_music::folded_music_length (SCM m)
145 Repeated_music* r = dynamic_cast<Repeated_music*> (unsmob_music (m));
147 Moment l = r->body_get_length () + r->alternatives_get_length (true);
148 return l.smobbed_copy ();
152 Repeated_music::volta_music_length (SCM m)
154 Repeated_music* r = dynamic_cast<Repeated_music*> (unsmob_music (m));
155 Moment l = r->body_get_length () + r->alternatives_volta_get_length ();
156 return l.smobbed_copy ();
159 ADD_MUSIC (Repeated_music);
161 Repeated_music::Repeated_music ()
167 MAKE_SCHEME_CALLBACK (Repeated_music,minimum_start, 1);
168 MAKE_SCHEME_CALLBACK (Repeated_music,first_start, 1);
171 Repeated_music::minimum_start (SCM m)
173 Music * me = unsmob_music (m);
174 Music * body = unsmob_music (me->get_mus_property ("element"));
177 return body->start_mom ().smobbed_copy();
180 return Music_sequence::minimum_start (me->get_mus_property ("elements")).smobbed_copy();
185 Repeated_music::first_start (SCM m)
187 Music * me = unsmob_music (m);
188 Music * body = unsmob_music (me->get_mus_property ("element"));
190 Moment rv = (body) ? body->start_mom () :
191 Music_sequence::first_start (me->get_mus_property ("elements"));
193 return rv.smobbed_copy ();