/*
breathing_sign-engraver.cc -- implement Breathing_sign_engraver
- Copyright (C) 1999 Michael Krause
+ (c) 1999--2006 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-engraver.hh"
#include "breathing-sign.hh"
-#include "musical-request.hh"
-#include "command-request.hh"
-#include "engraver-group-engraver.hh"
-#include "note-head.hh"
-#include "local-key-item.hh"
+#include "engraver-group.hh"
+#include "item.hh"
+
+class Breathing_sign_engraver : public Engraver
+{
+public:
+ TRANSLATOR_DECLARATIONS (Breathing_sign_engraver);
-ADD_THIS_TRANSLATOR (Breathing_sign_engraver);
+protected:
+ virtual bool try_music (Music *event);
+ void process_acknowledged ();
+ void stop_translation_timestep ();
+private:
+ Music *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::do_try_music (Music*r_l)
+Breathing_sign_engraver::try_music (Music *r)
{
- if (Breathing_sign_req * b= dynamic_cast <Breathing_sign_req *> (r_l)) {
- breathing_sign_req_l_ = b;
- return true;
- }
-
- return false;
+ breathing_sign_event_ = r;
+ return true;
}
void
-Breathing_sign_engraver::do_process_requests()
+Breathing_sign_engraver::process_acknowledged ()
{
- if(breathing_sign_req_l_) {
- breathing_sign_p_ = new Breathing_sign;
- Staff_symbol_referencer_interface st (breathing_sign_p_);
- st.set_interface ();
-
- announce_element (Score_element_info (breathing_sign_p_, breathing_sign_req_l_));
- }
-}
-
-void
-Breathing_sign_engraver::do_pre_move_processing()
-{
- if(breathing_sign_p_) {
- typeset_element(breathing_sign_p_);
- breathing_sign_p_ = 0;
- }
+ if (breathing_sign_event_ && ! breathing_sign_)
+ {
+ breathing_sign_ = make_item ("BreathingSign", breathing_sign_event_->self_scm ());
+ breathing_sign_event_ = 0;
+ }
}
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;
}
+
+#include "translator.icc"
+
+ADD_TRANSLATOR (Breathing_sign_engraver,
+ /* doc */ "",
+ /* create */ "BreathingSign",
+ /* accept */ "breathing-event",
+ /* read */ "",
+ /* write */ "");