/*
breathing_sign-engraver.cc -- implement Breathing_sign_engraver
- (c) 1999--2005 Michael Krause
+ (c) 1999--2007 Michael Krause
written for the GNU LilyPond music typesetter
. Spacing is not yet completely pretty
*/
-#include "staff-symbol-referencer.hh"
#include "breathing-sign.hh"
-#include "engraver-group-engraver.hh"
+#include "engraver.hh"
#include "item.hh"
+#include "stream-event.hh"
+
+#include "translator.icc"
class Breathing_sign_engraver : public Engraver
{
TRANSLATOR_DECLARATIONS (Breathing_sign_engraver);
protected:
- virtual bool try_music (Music *req);
- PRECOMPUTED_VIRTUAL void process_acknowledged ();
- PRECOMPUTED_VIRTUAL void stop_translation_timestep ();
+ void process_music ();
+ void stop_translation_timestep ();
+ DECLARE_TRANSLATOR_LISTENER (breathing);
private:
- Music *breathing_sign_req_;
+ Stream_event *breathing_sign_event_;
Grob *breathing_sign_;
};
Breathing_sign_engraver::Breathing_sign_engraver ()
{
breathing_sign_ = 0;
- breathing_sign_req_ = 0;
+ breathing_sign_event_ = 0;
}
-bool
-Breathing_sign_engraver::try_music (Music *r)
+IMPLEMENT_TRANSLATOR_LISTENER (Breathing_sign_engraver, breathing);
+void
+Breathing_sign_engraver::listen_breathing (Stream_event *ev)
{
- breathing_sign_req_ = r;
- return true;
+ ASSIGN_EVENT_ONCE (breathing_sign_event_, ev);
}
void
-Breathing_sign_engraver::process_acknowledged ()
+Breathing_sign_engraver::process_music ()
{
- if (breathing_sign_req_ && ! breathing_sign_)
+ if (breathing_sign_event_)
{
- breathing_sign_ = make_item ("BreathingSign", breathing_sign_req_->self_scm ());
- breathing_sign_req_ = 0;
+ breathing_sign_ = make_item ("BreathingSign", breathing_sign_event_->self_scm ());
}
}
Breathing_sign_engraver::stop_translation_timestep ()
{
breathing_sign_ = 0;
- breathing_sign_req_ = 0;
+ breathing_sign_event_ = 0;
}
-#include "translator.icc"
-
ADD_TRANSLATOR (Breathing_sign_engraver,
- /* descr */ "",
- /* creats*/ "BreathingSign",
- /* accepts */ "breathing-event",
- /* acks */ "",
- /* reads */ "",
+ /* doc */ "",
+ /* create */ "BreathingSign",
+ /* read */ "",
/* write */ "");