-/*
- repeated-music.cc -- implement Repeated_music
-
- source file of the GNU LilyPond music typesetter
-
- (c) 1998 Jan Nieuwenhuizen <janneke@gnu.org>
-
- */
+/*
+ This file is part of LilyPond, the GNU music typesetter.
+
+ Copyright (C) 1999--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
+
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+*/
#include "repeated-music.hh"
-#include "musical-pitch.hh"
+#include "music-sequence.hh"
+#include "pitch.hh"
+#include "warn.hh"
+#include "program-option.hh"
-Repeated_music::Repeated_music (Music* r, int n, Music_sequence* a)
+Music *
+Repeated_music::body (Music *me)
{
- repeats_i_ = n;
- unfold_b_ = false;
- repeat_p_ = r;
- alternative_p_ = a;
+ return unsmob_music (me->get_property ("element"));
}
-Repeated_music::~Repeated_music ()
+SCM
+Repeated_music::alternatives (Music *me)
{
- delete repeat_p_;
- delete alternative_p_;
+ return me->get_property ("elements");
}
-Repeated_music::Repeated_music (Repeated_music const& s)
- : Music (s)
+Moment
+Repeated_music::alternatives_get_length (Music *me, bool fold)
{
- repeats_i_ = s.repeats_i_;
- repeat_p_ = (s.repeat_p_) ? s.repeat_p_->clone () : 0;
- // urg?
- alternative_p_ = (s.alternative_p_) ? dynamic_cast <Music_sequence*> (s.alternative_p_->clone ()) : 0;
-}
+ SCM alternative_list = alternatives (me);
+ int len = scm_ilength (alternative_list);
+ if (len <= 0)
+ return 0;
-void
-Repeated_music::do_print () const
-{
- if (repeat_p_)
- repeat_p_->print ();
- if (alternative_p_)
- alternative_p_->print ();
+ if (fold)
+ return Music_sequence::maximum_length (alternative_list);
+
+ Moment m = 0;
+ int done = 0;
+ int count = robust_scm2int (me->get_property ("repeat-count"), 0);
+
+ SCM p = alternative_list;
+ while (scm_is_pair (p) && done < count)
+ {
+ m = m + unsmob_music (scm_car (p))->get_length ();
+ done++;
+ if (count - done < len)
+ p = scm_cdr (p);
+ }
+ return m;
}
-void
-Repeated_music::transpose (Musical_pitch p)
+/*
+ Sum all duration of all available alternatives. This is for the case
+ of volta repeats, where the alternatives are iterated just as they
+ were entered. */
+Moment
+Repeated_music::alternatives_volta_get_length (Music *me)
{
- if (repeat_p_)
- repeat_p_->transpose (p);
- if (alternative_p_)
- alternative_p_->transpose (p);
+ return Music_sequence::cumulative_length (alternatives (me));
}
+/*
+ Length of the body in THIS. Disregards REPEAT-COUNT.
+*/
Moment
-Repeated_music::length_mom () const
+Repeated_music::body_get_length (Music *me)
{
- Moment m;
- if (repeat_p_)
- m += repeat_p_->length_mom ();
- if (alternative_p_)
- m += alternative_p_->length_mom ();
+ Moment m = 0;
+ if (Music *body = unsmob_music (me->get_property ("element")))
+ m = body->get_length ();
return m;
}
+MAKE_SCHEME_CALLBACK (Repeated_music, unfolded_music_length, 1);
+
+SCM
+Repeated_music::unfolded_music_length (SCM m)
+{
+ Music *me = unsmob_music (m);
+
+ Moment l = Moment (repeat_count (me)) * body_get_length (me) + alternatives_get_length (me, false);
+ return l.smobbed_copy ();
+}
+
+MAKE_SCHEME_CALLBACK (Repeated_music, folded_music_length, 1);
+SCM
+Repeated_music::folded_music_length (SCM m)
+{
+ Music *me = unsmob_music (m);
+
+ Moment l = body_get_length (me) + alternatives_get_length (me, true);
+ return l.smobbed_copy ();
+}
+
+int
+Repeated_music::repeat_count (Music *me)
+{
+ return scm_to_int (me->get_property ("repeat-count"));
+}
+
+MAKE_SCHEME_CALLBACK (Repeated_music, volta_music_length, 1);
+SCM
+Repeated_music::volta_music_length (SCM m)
+{
+ Music *me = unsmob_music (m);
+ Moment l = body_get_length (me) + alternatives_volta_get_length (me);
+ return l.smobbed_copy ();
+}
-Musical_pitch
-Repeated_music::to_relative_octave (Musical_pitch p)
+MAKE_SCHEME_CALLBACK (Repeated_music, minimum_start, 1);
+SCM
+Repeated_music::minimum_start (SCM m)
{
- p = repeat_p_->to_relative_octave (p);
+ Music *me = unsmob_music (m);
+ Music *body = unsmob_music (me->get_property ("element"));
- p = alternative_p_->do_relative_octave (p, false);
- return p;
-
- /* ugh. Should
- \relative c'' \repeat 2 { c4 } { < ... > }
+ if (body)
+ return body->start_mom ().smobbed_copy ();
+ else
+ return Music_sequence::minimum_start (me->get_property ("elements")).smobbed_copy ();
+}
+
+MAKE_SCHEME_CALLBACK (Repeated_music, first_start, 1);
+SCM
+Repeated_music::first_start (SCM m)
+{
+ Music *me = unsmob_music (m);
+ Music *body = unsmob_music (me->get_property ("element"));
- and
-
- \relative c'' \repeat 2 { c4 }
- { { ...} }
+ Moment rv = (body) ? body->start_mom ()
+ : Music_sequence::first_start (me->get_property ("elements"));
- behave differently?
- */
+ return rv.smobbed_copy ();
}
projects / lilypond.git / blobdiff