2 music-sequence.cc -- implement Music_sequence
4 source file of the GNU LilyPond music typesetter
6 (c) 1998--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "scm-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_)
33 last_len.grace_part_ = Rational (0);
35 cumulative += last_len;
39 last_len.grace_part_ = Rational (0);
40 cumulative += last_len;
46 Music_sequence::maximum_length (SCM l)
49 for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
51 Music * m = unsmob_music (scm_car (s));
52 Moment l = m->get_length ();
59 MAKE_SCHEME_CALLBACK(Music_sequence,maximum_length_callback,1);
61 Music_sequence::maximum_length_callback (SCM m)
63 Music* me = unsmob_music (m);
64 return maximum_length (me->get_property ("elements")).smobbed_copy();
67 MAKE_SCHEME_CALLBACK(Music_sequence,cumulative_length_callback,1);
69 Music_sequence::cumulative_length_callback (SCM m)
71 Music* me = unsmob_music (m);
72 return cumulative_length (me->get_property ("elements")).smobbed_copy();
76 MAKE_SCHEME_CALLBACK(Music_sequence,minimum_start_callback,1);
78 Music_sequence::minimum_start_callback (SCM m)
80 Music* me = unsmob_music (m);
81 return minimum_start (me->get_property ("elements")).smobbed_copy();
84 MAKE_SCHEME_CALLBACK(Music_sequence,first_start_callback,1);
86 Music_sequence::first_start_callback (SCM m)
88 Music* me = unsmob_music (m);
89 return first_start (me->get_property ("elements")).smobbed_copy();
93 music_list_to_relative (SCM l,Pitch p, bool ret_first)
99 for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
101 if (Music *m = unsmob_music (scm_car (s)))
103 last = m->to_relative_octave (last);
109 return (ret_first) ? first : last;
114 compress_music_list (SCM l, Moment m)
116 for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
117 unsmob_music (scm_car (s))->compress (m);
121 Music_sequence::minimum_start (SCM l)
125 for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
127 m = m <? unsmob_music (scm_car (s))->start_mom ();
133 Music_sequence::first_start (SCM l)
137 for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
139 Music * mus = unsmob_music (scm_car (s));
140 Moment l = mus->get_length ();
141 Moment s = mus->start_mom ();
142 if (l.to_bool () || s.to_bool ())
148 MAKE_SCHEME_CALLBACK(Music_sequence, simultaneous_relative_callback, 2);
150 Music_sequence::simultaneous_relative_callback (SCM music, SCM pitch)
152 Music *me = unsmob_music (music);
153 Pitch p = *unsmob_pitch (pitch);
155 SCM elts = me->get_property ("elements");
157 Pitch retval = music_list_to_relative (elts, p, false);
158 if (lily_1_8_relative)
160 Pitch retval_1_8 = music_list_to_relative (elts, p, true);
161 if (retval_1_8 != retval)
162 lily_1_8_compatibility_used = true;
167 return retval.smobbed_copy ();
171 MAKE_SCHEME_CALLBACK(Music_sequence,event_chord_relative_callback,2);
173 Music_sequence::event_chord_relative_callback (SCM music, SCM pitch)
175 Music *me = unsmob_music (music);
176 Pitch p = *unsmob_pitch (pitch);
177 return music_list_to_relative (me->get_property ("elements"),
178 p, true).smobbed_copy ();