/*
- 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--2015 Jan Nieuwenhuizen <janneke@gnu.org>
- (c) 1997--2000 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 "lily-proto.hh"
#include "performer.hh"
-
+#include "protected-scm.hh"
class Time_signature_performer : public Performer
{
public:
- VIRTUAL_COPY_CONS(Translator);
-
- Time_signature_performer();
- ~Time_signature_performer();
+ TRANSLATOR_DECLARATIONS (Time_signature_performer);
+ ~Time_signature_performer ();
protected:
- virtual void stop_translation_timestep ();
- virtual void create_grobs ();
-
+ void stop_translation_timestep ();
+ void process_music ();
+ virtual void derived_mark () const;
SCM prev_fraction_;
private:
- Time_signature_change_req* time_signature_req_l_;
- Audio_time_signature* audio_p_;
+
+ Audio_time_signature *audio_;
};
+void
+Time_signature_performer::derived_mark () const
+{
+ scm_gc_mark (prev_fraction_);
+}
-Time_signature_performer::Time_signature_performer ()
+Time_signature_performer::Time_signature_performer (Context *c)
+ : Performer (c)
{
prev_fraction_ = SCM_BOOL_F;
- audio_p_ = 0;
+ audio_ = 0;
}
Time_signature_performer::~Time_signature_performer ()
{
}
-
void
-Time_signature_performer::create_grobs ()
+Time_signature_performer::process_music ()
{
SCM fr = get_property ("timeSignatureFraction");
- if (gh_pair_p (fr)
- && scm_equal_p (fr, prev_fraction_) != SCM_BOOL_T)
+ if (scm_is_pair (fr) && !ly_is_equal (fr, prev_fraction_))
{
- int b = gh_scm2int (gh_car (fr));
- int o = gh_scm2int (gh_cdr (fr));
-
- audio_p_ = new Audio_time_signature (b,o);
- Audio_element_info info (audio_p_, 0);
+ prev_fraction_ = fr;
+ int b = scm_to_int (scm_car (fr));
+ int o = scm_to_int (scm_cdr (fr));
+
+ audio_ = new Audio_time_signature (b, o);
+ Audio_element_info info (audio_, 0);
announce_element (info);
- time_signature_req_l_ = 0;
}
}
void
Time_signature_performer::stop_translation_timestep ()
{
- if (audio_p_)
+ if (audio_)
{
- play_element (audio_p_);
- audio_p_ = 0;
+ audio_ = 0;
}
}
-ADD_THIS_TRANSLATOR (Time_signature_performer);
+#include "translator.icc"
+
+void
+Time_signature_performer::boot ()
+{
+
+}
+
+ADD_TRANSLATOR (Time_signature_performer,
+ /* doc */
+ "",
+
+ /* create */
+ "",
+
+ /* read */
+ "",
+
+ /* write */
+ ""
+ );