source file of the GNU LilyPond music typesetter
- (c) 1998--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1998--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "music-list.hh"
-#include "debug.hh"
+#include "warn.hh"
#include "pitch.hh"
-
-
-void
-Music_sequence::truncate (int k)
-{
- SCM l = get_mus_property ("elements");
- if (k == 0)
- {
- l = SCM_EOL;
- }
- else
- {
- SCM s = l;
- k--;
- for (; gh_pair_p (s) && k--; s = gh_cdr (s))
- ;
-
- if (gh_pair_p (s))
- {
- gh_set_cdr_x (s, SCM_EOL);
- }
- }
- set_mus_property ("elements", l);
-}
+#include "input.hh"
SCM
Music_sequence::music_list ()const
Music_sequence::append_music (Music *m)
{
set_mus_property ("elements",
- gh_append2( music_list(), gh_cons (m->self_scm (), SCM_EOL)));
- scm_unprotect_object (m->self_scm ());
+ gh_append2 (music_list (), gh_cons (m->self_scm (), SCM_EOL)));
+ scm_gc_unprotect_object (m->self_scm ());
}
-Music_sequence::Music_sequence(SCM l)
- : Music (l)
+Music_sequence::Music_sequence ( )
+ : Music ()
{
}
void
-Music_sequence::transpose (Pitch rq)
+transpose_music_list (SCM l, Pitch rq)
{
- for (SCM s = music_list (); gh_pair_p (s); s = gh_cdr (s))
- unsmob_music (gh_car (s))->transpose (rq);
+ for (SCM s = l; gh_pair_p (s); s = ly_cdr (s))
+ unsmob_music (ly_car (s))->transpose (rq);
}
-
-
-
Moment
-Music_sequence::cumulative_length () const
+Music_sequence::cumulative_length (SCM l)
{
- Moment last=0;
- for (SCM s = music_list (); gh_pair_p (s); s = gh_cdr (s))
- last += unsmob_music (gh_car (s))->length_mom ();
- return last;
-}
+ Moment cumulative;
+ Moment last_len;
-Pitch
-Music_sequence::to_relative_octave (Pitch p)
-{
- return do_relative_octave (p, false);
-}
+ for (SCM s = l; gh_pair_p (s); s = ly_cdr (s))
+ {
+ Moment l = unsmob_music (ly_car (s))->get_length ();
+ if (last_len.grace_part_ && l.main_part_)
+ {
+ last_len.grace_part_ = Rational (0);
+ }
+ cumulative += last_len;
+ last_len = l;
+ }
+
+ last_len.grace_part_ = Rational (0);
+ cumulative += last_len;
+ return cumulative;
+}
Moment
-Music_sequence::maximum_length () const
+Music_sequence::maximum_length (SCM l)
{
Moment dur = 0;
- for (SCM s = music_list (); gh_pair_p (s); s = gh_cdr (s))
- dur = dur >? unsmob_music (gh_car (s))->length_mom ();
+ for (SCM s = l; gh_pair_p (s); s = ly_cdr (s))
+ {
+ Music * m = unsmob_music (ly_car (s));
+ Moment l = m->get_length ();
+ dur = dur >? l;
+ }
return dur;
}
-int
-Music_sequence::length_i () const
-{
- return scm_ilength (music_list ());
-}
Pitch
-Music_sequence::do_relative_octave (Pitch p, bool ret_first)
+music_list_to_relative (SCM l,Pitch p, bool ret_first)
{
- Pitch retval;
+ Pitch first = p;
int count=0;
Pitch last = p;
- for (SCM s = music_list (); gh_pair_p (s); s = gh_cdr (s))
+ for (SCM s = l; gh_pair_p (s); s = ly_cdr (s))
{
- last = unsmob_music (gh_car (s))->to_relative_octave (last);
- if (!count ++ )
- retval = last;
+ if (Music *m = unsmob_music (ly_car (s)))
+ {
+ last = m->to_relative_octave (last);
+ if (!count ++)
+ first = last;
+ }
}
- if (!ret_first)
- retval = last;
-
- return retval;
+ return (ret_first)? first : last;
}
+
void
-Music_sequence::compress (Moment m)
+compress_music_list (SCM l, Moment m)
+{
+ for (SCM s = l; gh_pair_p (s); s = ly_cdr (s))
+ unsmob_music (ly_car (s))->compress (m);
+}
+
+ADD_MUSIC (Music_sequence);
+
+Moment
+Music_sequence::minimum_start (SCM l)
+{
+ Moment m;
+
+ for (SCM s = l; gh_pair_p (s); s = ly_cdr (s))
+ {
+ m = m <? unsmob_music (ly_car (s))->start_mom ();
+ }
+ return m;
+}
+
+Moment
+Music_sequence::first_start (SCM l)
{
- for (SCM s = music_list (); gh_pair_p (s); s = gh_cdr (s))
- unsmob_music (gh_car (s))->compress (m);
+ Moment m;
+
+ for (SCM s = l; gh_pair_p (s); s = ly_cdr (s))
+ {
+ Music * mus = unsmob_music (ly_car (s));
+ Moment l = mus->get_length ();
+ Moment s = mus->start_mom ();
+ if (l.to_bool () || s.to_bool ())
+ return s;
+ }
+ return m;
}
+