/*
- time-signature-performer.cc -- implement Time_signature_performer
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1997--2012 Jan Nieuwenhuizen <janneke@gnu.org>
- (c) 1997--2005 Jan Nieuwenhuizen <janneke@gnu.org>
+ 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 "audio-item.hh"
#include "performer.hh"
+#include "protected-scm.hh"
class Time_signature_performer : public Performer
{
protected:
- virtual void stop_translation_timestep ();
- virtual void create_audio_elements ();
-
+ void stop_translation_timestep ();
+ void process_music ();
+ virtual void derived_mark () const;
SCM prev_fraction_;
private:
Audio_time_signature *audio_;
};
+void
+Time_signature_performer::derived_mark () const
+{
+ scm_gc_mark (prev_fraction_);
+}
+
Time_signature_performer::Time_signature_performer ()
{
prev_fraction_ = SCM_BOOL_F;
}
void
-Time_signature_performer::create_audio_elements ()
+Time_signature_performer::process_music ()
{
SCM fr = get_property ("timeSignatureFraction");
- if (scm_is_pair (fr) && !ly_c_equal_p (fr, prev_fraction_))
+ if (scm_is_pair (fr) && !ly_is_equal (fr, prev_fraction_))
{
prev_fraction_ = fr;
int b = scm_to_int (scm_car (fr));
audio_ = new Audio_time_signature (b, o);
Audio_element_info info (audio_, 0);
announce_element (info);
-
}
}
{
if (audio_)
{
- play_element (audio_);
audio_ = 0;
}
}
-ADD_TRANSLATOR (Time_signature_performer, "", "", "", "", "", "");
+#include "translator.icc"
+
+ADD_TRANSLATOR (Time_signature_performer,
+ /* doc */
+ "",
+
+ /* create */
+ "",
+
+ /* read */
+ "",
+
+ /* write */
+ ""
+ );