-/*
- music-sequence.cc -- implement Music_sequence
-
+/*
+ music-sequence.cc -- implement Music_sequence
+
source file of the GNU LilyPond music typesetter
-
- (c) 1998--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
-#include "music-list.hh"
-#include "debug.hh"
-#include "pitch.hh"
+ (c) 1998--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
+
+#include "music-sequence.hh"
+
+#include "warn.hh"
+#include "program-option.hh"
+#include "music.hh"
+#include "input.hh"
void
-Music_sequence::truncate (int k)
+transpose_music_list (SCM lst, Pitch rq)
+{
+ for (SCM s = lst; scm_is_pair (s); s = scm_cdr (s))
+ unsmob_music (scm_car (s))->transpose (rq);
+}
+
+Moment
+Music_sequence::cumulative_length (SCM l)
{
- SCM l = get_mus_property ("elements");
- if (k == 0)
+ Moment cumulative;
+ Moment last_len;
+
+ for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
{
- l = SCM_EOL;
+ Moment l = unsmob_music (scm_car (s))->get_length ();
+ if (last_len.grace_part_ && l.main_part_)
+ last_len.grace_part_ = Rational (0);
+ cumulative += last_len;
+ last_len = l;
}
- else
- {
- SCM s = l;
- k--;
- for (; gh_pair_p (s) && k--; s = gh_cdr (s))
- ;
- if (gh_pair_p (s))
+ last_len.grace_part_ = Rational (0);
+ cumulative += last_len;
+
+ return cumulative;
+}
+
+Moment
+Music_sequence::maximum_length (SCM l)
+{
+ Moment dur = 0;
+ for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
+ {
+ Music *m = unsmob_music (scm_car (s));
+ if (!m)
+ programming_error ("Music sequence should have music elements");
+ else
{
- gh_set_cdr_x (s, SCM_EOL);
+ Moment l = m->get_length ();
+ dur = max (dur, l);
}
}
- set_mus_property ("elements", l);
+
+ return dur;
}
+MAKE_SCHEME_CALLBACK (Music_sequence, maximum_length_callback, 1);
SCM
-Music_sequence::music_list ()const
+Music_sequence::maximum_length_callback (SCM m)
{
- return get_mus_property ("elements");
+ Music *me = unsmob_music (m);
+ return maximum_length (me->get_property ("elements")).smobbed_copy ();
}
-/*
- Ugh this sucks. Linear. do not use.
- */
-void
-Music_sequence::append_music (Music *m)
+MAKE_SCHEME_CALLBACK (Music_sequence, cumulative_length_callback, 1);
+SCM
+Music_sequence::cumulative_length_callback (SCM m)
{
- set_mus_property ("elements",
- gh_append2( music_list(), gh_cons (m->self_scm (), SCM_EOL)));
- scm_unprotect_object (m->self_scm ());
+ Music *me = unsmob_music (m);
+ return cumulative_length (me->get_property ("elements")).smobbed_copy ();
}
-Music_sequence::Music_sequence(SCM h)
+MAKE_SCHEME_CALLBACK (Music_sequence, minimum_start_callback, 1);
+SCM
+Music_sequence::minimum_start_callback (SCM m)
{
- set_mus_property ("elements", h);
+ Music *me = unsmob_music (m);
+ return minimum_start (me->get_property ("elements")).smobbed_copy ();
}
-void
-Music_sequence::transpose (Pitch rq)
+MAKE_SCHEME_CALLBACK (Music_sequence, first_start_callback, 1);
+SCM
+Music_sequence::first_start_callback (SCM m)
{
- for (SCM s = music_list (); gh_pair_p (s); s = gh_cdr (s))
- unsmob_music (gh_car (s))->transpose (rq);
+ Music *me = unsmob_music (m);
+ return first_start (me->get_property ("elements")).smobbed_copy ();
}
+Pitch
+music_list_to_relative (SCM l, Pitch p, bool ret_first)
+{
+ Pitch first = p;
+ int count = 0;
+ Pitch last = p;
+ for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
+ {
+ if (Music *m = unsmob_music (scm_car (s)))
+ {
+ last = m->to_relative_octave (last);
+ if (!count++)
+ first = last;
+ }
+ }
-
-Moment
-Music_sequence::cumulative_length () const
-{
- 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;
+ return (ret_first) ? first : last;
}
-Pitch
-Music_sequence::to_relative_octave (Pitch p)
+void
+compress_music_list (SCM l, Moment m)
{
- return do_relative_octave (p, false);
+ for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
+ unsmob_music (scm_car (s))->compress (m);
}
-
Moment
-Music_sequence::maximum_length () const
+Music_sequence::minimum_start (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 ();
+ Moment m;
- return dur;
+ for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
+ m = min (m, unsmob_music (scm_car (s))->start_mom ());
+ return m;
}
-int
-Music_sequence::length_i () const
+
+Moment
+Music_sequence::first_start (SCM l)
{
- return scm_ilength (music_list ());
+ Moment m;
+
+ for (SCM s = l; scm_is_pair (s); s = scm_cdr (s))
+ {
+ Music *mus = unsmob_music (scm_car (s));
+ Moment l = mus->get_length ();
+ Moment s = mus->start_mom ();
+ if (l.to_bool () || s.to_bool ())
+ return s;
+ }
+ return m;
}
-Pitch
-Music_sequence::do_relative_octave (Pitch p, bool ret_first)
+MAKE_SCHEME_CALLBACK (Music_sequence, simultaneous_relative_callback, 2);
+SCM
+Music_sequence::simultaneous_relative_callback (SCM music, SCM pitch)
{
- Pitch retval;
- int count=0;
+ Music *me = unsmob_music (music);
+ Pitch p = *unsmob_pitch (pitch);
- Pitch last = p;
- for (SCM s = music_list (); gh_pair_p (s); s = gh_cdr (s))
+ SCM elts = me->get_property ("elements");
+ SCM copied = SCM_EOL;
+ if (lily_1_8_relative)
+ copied = ly_music_deep_copy (elts);
+
+ Pitch retval = music_list_to_relative (elts, p, false);
+
+ if (lily_1_8_relative)
{
- last = unsmob_music (gh_car (s))->to_relative_octave (last);
- if (!count ++ )
- retval = last;
+
+ Pitch retval_1_8 = music_list_to_relative (copied, p, true);
+ if (retval_1_8 != retval)
+ lily_1_8_compatibility_used = true;
+
+ retval = retval_1_8;
}
- if (!ret_first)
- retval = last;
-
- return retval;
+ return retval.smobbed_copy ();
}
-void
-Music_sequence::compress (Moment m)
+MAKE_SCHEME_CALLBACK (Music_sequence, event_chord_relative_callback, 2);
+SCM
+Music_sequence::event_chord_relative_callback (SCM music, SCM pitch)
{
- for (SCM s = music_list (); gh_pair_p (s); s = gh_cdr (s))
- unsmob_music (gh_car (s))->compress (m);
+ Music *me = unsmob_music (music);
+ Pitch p = *unsmob_pitch (pitch);
+ return music_list_to_relative (me->get_property ("elements"),
+ p, true).smobbed_copy ();
}
+
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