2 music-sequence.cc -- implement Music_sequence
4 source file of the GNU LilyPond music typesetter
6 (c) 1998--2006 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));
51 programming_error ("Music sequence should have music elements");
54 Moment l = m->get_length ();
62 MAKE_SCHEME_CALLBACK (Music_sequence, maximum_length_callback, 1);
64 Music_sequence::maximum_length_callback (SCM m)
66 Music *me = unsmob_music (m);
67 return maximum_length (me->get_property ("elements")).smobbed_copy ();
70 MAKE_SCHEME_CALLBACK (Music_sequence, cumulative_length_callback, 1);
72 Music_sequence::cumulative_length_callback (SCM m)
74 Music *me = unsmob_music (m);
75 return cumulative_length (me->get_property ("elements")).smobbed_copy ();
78 MAKE_SCHEME_CALLBACK (Music_sequence, minimum_start_callback, 1);
80 Music_sequence::minimum_start_callback (SCM m)
82 Music *me = unsmob_music (m);
83 return minimum_start (me->get_property ("elements")).smobbed_copy ();
86 MAKE_SCHEME_CALLBACK (Music_sequence, first_start_callback, 1);
88 Music_sequence::first_start_callback (SCM m)
90 Music *me = unsmob_music (m);
91 return first_start (me->get_property ("elements")).smobbed_copy ();
95 music_list_to_relative (SCM l, Pitch p, bool ret_first)
101 for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
103 if (Music *m = unsmob_music (scm_car (s)))
105 last = m->to_relative_octave (last);
111 return (ret_first) ? first : last;
115 compress_music_list (SCM l, Moment m)
117 for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
118 unsmob_music (scm_car (s))->compress (m);
122 Music_sequence::minimum_start (SCM l)
126 for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
127 m = min (m, unsmob_music (scm_car (s))->start_mom ());
132 Music_sequence::first_start (SCM l)
136 for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
138 Music *mus = unsmob_music (scm_car (s));
139 Moment l = mus->get_length ();
140 Moment s = mus->start_mom ();
141 if (l.to_bool () || s.to_bool ())
147 MAKE_SCHEME_CALLBACK (Music_sequence, simultaneous_relative_callback, 2);
149 Music_sequence::simultaneous_relative_callback (SCM music, SCM pitch)
151 Music *me = unsmob_music (music);
152 Pitch p = *unsmob_pitch (pitch);
154 SCM elts = me->get_property ("elements");
155 SCM copied = SCM_EOL;
156 if (lily_1_8_relative)
157 copied = ly_music_deep_copy (elts);
159 Pitch retval = music_list_to_relative (elts, p, false);
161 if (lily_1_8_relative)
164 Pitch retval_1_8 = music_list_to_relative (copied, p, true);
165 if (retval_1_8 != retval)
166 lily_1_8_compatibility_used = true;
171 return retval.smobbed_copy ();
174 MAKE_SCHEME_CALLBACK (Music_sequence, event_chord_relative_callback, 2);
176 Music_sequence::event_chord_relative_callback (SCM music, SCM pitch)
178 Music *me = unsmob_music (music);
179 Pitch p = *unsmob_pitch (pitch);
180 return music_list_to_relative (me->get_property ("elements"),
181 p, true).smobbed_copy ();