/*
breathing_sign-engraver.cc -- implement Breathing_sign_engraver
- Copyright (C) 1999 Michael Krause
+ (c) 1999--2009 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])
+ ([e8 \breathe f e f] should become [e8] \breathe [f e f])
. Spacing is not yet completely pretty
-
*/
-#include "staff-symbol-referencer.hh"
#include "breathing-sign.hh"
-#include "musical-request.hh"
-#include "command-request.hh"
-#include "engraver-group-engraver.hh"
-#include "local-key-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);
-
-protected:
- virtual bool do_try_music (Music *req_l);
- virtual void do_process_music();
+ TRANSLATOR_DECLARATIONS (Breathing_sign_engraver);
- virtual void do_pre_move_processing();
- virtual void do_post_move_processing();
+protected:
+ void process_music ();
+ void stop_translation_timestep ();
+ DECLARE_TRANSLATOR_LISTENER (breathing);
private:
- Breathing_sign_req * breathing_sign_req_l_;
- Score_element * 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;
-}
-
-bool
-Breathing_sign_engraver::do_try_music (Music*r_l)
-{
- if (Breathing_sign_req * b= dynamic_cast <Breathing_sign_req *> (r_l))
- {
- breathing_sign_req_l_ = b;
- return true;
- }
-
- return false;
+ breathing_sign_ = 0;
+ breathing_sign_event_ = 0;
}
+IMPLEMENT_TRANSLATOR_LISTENER (Breathing_sign_engraver, breathing);
void
-Breathing_sign_engraver::do_process_music()
+Breathing_sign_engraver::listen_breathing (Stream_event *ev)
{
- if(breathing_sign_req_l_)
- {
- SCM b = get_property ("basicBreathingSignProperties");
- breathing_sign_p_ = new Item (b);
-
- Breathing_sign::set_interface (breathing_sign_p_);
-
- announce_element (Score_element_info (breathing_sign_p_, breathing_sign_req_l_));
- }
+ ASSIGN_EVENT_ONCE (breathing_sign_event_, ev);
}
-void
-Breathing_sign_engraver::do_pre_move_processing()
+void
+Breathing_sign_engraver::process_music ()
{
- if(breathing_sign_p_)
+ if (breathing_sign_event_)
{
- typeset_element(breathing_sign_p_);
- breathing_sign_p_ = 0;
+ breathing_sign_ = make_item ("BreathingSign", breathing_sign_event_->self_scm ());
}
}
void
-Breathing_sign_engraver::do_post_move_processing()
+Breathing_sign_engraver::stop_translation_timestep ()
{
- breathing_sign_req_l_ = 0;
+ breathing_sign_ = 0;
+ breathing_sign_event_ = 0;
}
-ADD_THIS_TRANSLATOR(Breathing_sign_engraver);
+ADD_TRANSLATOR (Breathing_sign_engraver,
+ /* doc */
+ "Create a breathing sign.",
+
+ /* create */
+ "BreathingSign ",
+
+ /* read */
+ "",
+
+ /* write */
+ ""
+ );