-/*
- chord-tremolo-iterator.cc -- implement Chord_tremolo_iterator
-
- source file of the GNU LilyPond music typesetter
-
- (c) 2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
-
-
/*
- this is culled from various other iterators, but sharing code by subclassing proved to be too difficult.
- */
-
-#include "input.hh"
-#include "chord-tremolo-iterator.hh"
-#include "repeated-music.hh"
-
-void
-Chord_tremolo_iterator::construct_children ()
-{
- Repeated_music * rep = dynamic_cast<Repeated_music*> (music_l_);
- factor_ = Moment (1, rep->repeat_count ());
- child_iter_p_ = get_iterator_p (rep->body ());
-}
+ This file is part of LilyPond, the GNU music typesetter.
-Chord_tremolo_iterator::Chord_tremolo_iterator()
-{
- factor_ = 1;
- child_iter_p_ = 0;
-}
+ Copyright (C) 2000--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ Erik Sandberg <mandolaerik@gmail.com>
-void
-Chord_tremolo_iterator::process (Moment m)
-{
- if (!m)
- {
- Music_iterator *yeah = try_music (music_l_);
- if (yeah)
- set_translator (yeah->report_to_l ());
- else
- music_l_->origin ()->warning ( _("no one to print a tremolos"));
- }
+ 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.
- child_iter_p_->process (factor_ * m);
-}
+ 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/>.
+*/
-Moment
-Chord_tremolo_iterator::pending_moment () const
-{
- return child_iter_p_->pending_moment () / factor_;
-}
+#include "chord-tremolo-iterator.hh"
-bool
-Chord_tremolo_iterator::ok () const
-{
- return child_iter_p_ && child_iter_p_->ok();
-}
+#include "input.hh"
+#include "international.hh"
+#include "misc.hh"
+#include "repeated-music.hh"
-Chord_tremolo_iterator::~Chord_tremolo_iterator ()
+Chord_tremolo_iterator::Chord_tremolo_iterator ()
{
- delete child_iter_p_;
}
-Music_iterator*
-Chord_tremolo_iterator::try_music_in_children (Music *m) const
+SCM
+Chord_tremolo_iterator::get_music_list () const
{
- return child_iter_p_->try_music (m);
-}
+ Music *mus = get_music ();
+ Input *origin = mus->origin ();
+ Music *body = Repeated_music::body (mus);
+ bool body_is_sequential = body->is_mus_type ("sequential-music");
+ int elt_count = body_is_sequential ? scm_ilength (body->get_property ("elements")) : 1;
+ if (elt_count <= 0)
+ elt_count = 1;
-IMPLEMENT_CTOR_CALLBACK(Chord_tremolo_iterator);
+ if (elt_count == 1)
+ {
+ Music *ev = make_music_by_name (ly_symbol2scm ("TremoloEvent"));
+ ev->set_spot (*origin);
+ ev->set_property ("repeat-count", mus->get_property ("repeat-count"));
+ ev->set_property ("tremolo-type", mus->get_property ("tremolo-type"));
+ return scm_list_2 (ev->unprotect (), body->self_scm ());
+ }
+ else
+ {
+ SCM tremolo_symbol = ly_symbol2scm ("TremoloSpanEvent");
+ SCM start_event_scm = scm_call_2 (ly_lily_module_constant ("make-span-event"), tremolo_symbol, scm_from_int (START));
+ unsmob_music (start_event_scm)->set_spot (*origin);
+ SCM stop_event_scm = scm_call_2 (ly_lily_module_constant ("make-span-event"), tremolo_symbol, scm_from_int (STOP));
+
+ Music *start_event = unsmob_music (start_event_scm);
+ Music *stop_event = unsmob_music (stop_event_scm);
+ start_event->set_spot (*origin);
+ stop_event->set_spot (*origin);
+ start_event->set_property ("repeat-count", mus->get_property ("repeat-count"));
+ start_event->set_property ("tremolo-type", mus->get_property ("tremolo-type"));
+
+ return scm_list_3 (start_event_scm, body->self_scm (), stop_event_scm);
+ }
+}
+IMPLEMENT_CTOR_CALLBACK (Chord_tremolo_iterator);