/*
- breathing_sign-engraver.cc -- implement Breathing_sign_engraver
+ This file is part of LilyPond, the GNU music typesetter.
- Copyright (C) 1999 Michael Krause
+ Copyright (C) 1999--2015 Michael Krause
written for the GNU LilyPond music typesetter
-TODO:
+ TODO:
- . Cancel any beams running through the breathing sign
- ([e8 \breathe f e f] should become [e8] \breathe [f e f])
. Spacing is not yet completely pretty
+ 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 "staff-symbol-referencer.hh"
#include "breathing-sign.hh"
-#include "musical-request.hh"
-#include "command-request.hh"
-#include "engraver-group-engraver.hh"
-#include "item.hh"
#include "engraver.hh"
-#include "command-request.hh"
+#include "item.hh"
+#include "stream-event.hh"
+
+#include "translator.icc"
-class Breathing_sign_engraver : public Engraver {
+class Breathing_sign_engraver : public Engraver
+{
public:
- Breathing_sign_engraver();
- VIRTUAL_COPY_CONS(Translator);
-
+ TRANSLATOR_DECLARATIONS (Breathing_sign_engraver);
+
protected:
- virtual bool try_music (Music *req_l);
- virtual void create_grobs ();
- virtual void stop_translation_timestep();
- virtual void start_translation_timestep();
+ void process_music ();
+ void stop_translation_timestep ();
+ void listen_breathing (Stream_event *);
private:
- Breathing_sign_req * breathing_sign_req_l_;
- Grob * breathing_sign_p_;
+ Stream_event *breathing_sign_event_;
+ Grob *breathing_sign_;
};
-Breathing_sign_engraver::Breathing_sign_engraver()
+Breathing_sign_engraver::Breathing_sign_engraver ()
{
- breathing_sign_p_ = 0;
- breathing_sign_req_l_ = 0;
+ breathing_sign_ = 0;
+ breathing_sign_event_ = 0;
}
-bool
-Breathing_sign_engraver::try_music (Music*r_l)
+void
+Breathing_sign_engraver::listen_breathing (Stream_event *ev)
{
- if (Breathing_sign_req * b= dynamic_cast <Breathing_sign_req *> (r_l))
- {
- breathing_sign_req_l_ = b;
- return true;
- }
-
- return false;
+ ASSIGN_EVENT_ONCE (breathing_sign_event_, ev);
}
void
-Breathing_sign_engraver::create_grobs ()
+Breathing_sign_engraver::process_music ()
{
- if(breathing_sign_req_l_ && ! breathing_sign_p_)
+ if (breathing_sign_event_)
{
- SCM b = get_property ("BreathingSign");
- breathing_sign_p_ = new Item (b);
-
- Breathing_sign::set_interface (breathing_sign_p_);
-
- announce_grob (breathing_sign_p_, breathing_sign_req_l_);
- breathing_sign_req_l_ = 0;
+ breathing_sign_ = make_item ("BreathingSign", breathing_sign_event_->self_scm ());
}
}
-void
-Breathing_sign_engraver::stop_translation_timestep()
+void
+Breathing_sign_engraver::stop_translation_timestep ()
{
- if(breathing_sign_p_)
- {
- typeset_grob(breathing_sign_p_);
- breathing_sign_p_ = 0;
- }
+ breathing_sign_ = 0;
+ breathing_sign_event_ = 0;
}
void
-Breathing_sign_engraver::start_translation_timestep()
+Breathing_sign_engraver::boot ()
{
- breathing_sign_req_l_ = 0;
+ ADD_LISTENER (Breathing_sign_engraver, breathing);
}
-ADD_THIS_TRANSLATOR(Breathing_sign_engraver);
+ADD_TRANSLATOR (Breathing_sign_engraver,
+ /* doc */
+ "Create a breathing sign.",
+
+ /* create */
+ "BreathingSign ",
+
+ /* read */
+ "",
+
+ /* write */
+ ""
+ );