2 music-sequence.cc -- implement Music_sequence
4 source file of the GNU LilyPond music typesetter
6 (c) 1998--2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
10 #include "program-option.hh"
13 #include "music-sequence.hh"
16 transpose_music_list (SCM lst, Pitch rq)
18 for (SCM s = lst; scm_is_pair (s); s = scm_cdr (s))
19 unsmob_music (scm_car (s))->transpose (rq);
23 Music_sequence::cumulative_length (SCM l)
28 for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
30 Moment l = unsmob_music (scm_car (s))->get_length ();
31 if (last_len.grace_part_ && l.main_part_)
32 last_len.grace_part_ = Rational (0);
33 cumulative += last_len;
37 last_len.grace_part_ = Rational (0);
38 cumulative += last_len;
44 Music_sequence::maximum_length (SCM l)
47 for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
49 Music *m = unsmob_music (scm_car (s));
50 Moment l = m->get_length ();
57 MAKE_SCHEME_CALLBACK (Music_sequence, maximum_length_callback, 1);
59 Music_sequence::maximum_length_callback (SCM m)
61 Music *me = unsmob_music (m);
62 return maximum_length (me->get_property ("elements")).smobbed_copy ();
65 MAKE_SCHEME_CALLBACK (Music_sequence, cumulative_length_callback, 1);
67 Music_sequence::cumulative_length_callback (SCM m)
69 Music *me = unsmob_music (m);
70 return cumulative_length (me->get_property ("elements")).smobbed_copy ();
73 MAKE_SCHEME_CALLBACK (Music_sequence, minimum_start_callback, 1);
75 Music_sequence::minimum_start_callback (SCM m)
77 Music *me = unsmob_music (m);
78 return minimum_start (me->get_property ("elements")).smobbed_copy ();
81 MAKE_SCHEME_CALLBACK (Music_sequence, first_start_callback, 1);
83 Music_sequence::first_start_callback (SCM m)
85 Music *me = unsmob_music (m);
86 return first_start (me->get_property ("elements")).smobbed_copy ();
90 music_list_to_relative (SCM l, Pitch p, bool ret_first)
96 for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
98 if (Music *m = unsmob_music (scm_car (s)))
100 last = m->to_relative_octave (last);
106 return (ret_first) ? first : last;
110 compress_music_list (SCM l, Moment m)
112 for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
113 unsmob_music (scm_car (s))->compress (m);
117 Music_sequence::minimum_start (SCM l)
121 for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
122 m = min (m, unsmob_music (scm_car (s))->start_mom ());
127 Music_sequence::first_start (SCM l)
131 for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
133 Music *mus = unsmob_music (scm_car (s));
134 Moment l = mus->get_length ();
135 Moment s = mus->start_mom ();
136 if (l.to_bool () || s.to_bool ())
142 MAKE_SCHEME_CALLBACK (Music_sequence, simultaneous_relative_callback, 2);
144 Music_sequence::simultaneous_relative_callback (SCM music, SCM pitch)
146 Music *me = unsmob_music (music);
147 Pitch p = *unsmob_pitch (pitch);
149 SCM elts = me->get_property ("elements");
150 SCM copied = SCM_EOL;
151 if (lily_1_8_relative)
152 copied = ly_music_deep_copy (elts);
154 Pitch retval = music_list_to_relative (elts, p, false);
156 if (lily_1_8_relative)
159 Pitch retval_1_8 = music_list_to_relative (copied, p, true);
160 if (retval_1_8 != retval)
161 lily_1_8_compatibility_used = true;
166 return retval.smobbed_copy ();
169 MAKE_SCHEME_CALLBACK (Music_sequence, event_chord_relative_callback, 2);
171 Music_sequence::event_chord_relative_callback (SCM music, SCM pitch)
173 Music *me = unsmob_music (music);
174 Pitch p = *unsmob_pitch (pitch);
175 return music_list_to_relative (me->get_property ("elements"),
176 p, true).smobbed_copy ();