2 breathing_sign-engraver.cc -- implement Breathing_sign_engraver
4 (c) 1999--2004 Michael Krause
6 written for the GNU LilyPond music typesetter
10 . Cancel any beams running through the breathing sign
11 ([e8 \breathe f e f] should become [e8] \breathe [f e f])
12 . Spacing is not yet completely pretty
16 #include "staff-symbol-referencer.hh"
17 #include "breathing-sign.hh"
20 #include "engraver-group-engraver.hh"
22 #include "engraver.hh"
25 class Breathing_sign_engraver : public Engraver {
27 TRANSLATOR_DECLARATIONS(Breathing_sign_engraver);
30 virtual bool try_music (Music *req);
31 virtual void process_acknowledged_grobs ();
32 virtual void stop_translation_timestep ();
35 Music * breathing_sign_req_;
36 Grob * breathing_sign_;
39 Breathing_sign_engraver::Breathing_sign_engraver ()
42 breathing_sign_req_ = 0;
46 Breathing_sign_engraver::try_music (Music*r)
48 breathing_sign_req_ = r;
53 Breathing_sign_engraver::process_acknowledged_grobs ()
55 if (breathing_sign_req_ && ! breathing_sign_)
57 breathing_sign_ = make_item ("BreathingSign");
59 announce_grob(breathing_sign_, breathing_sign_req_->self_scm());
60 breathing_sign_req_ = 0;
65 Breathing_sign_engraver::stop_translation_timestep ()
69 typeset_grob (breathing_sign_);
72 breathing_sign_req_ = 0;
76 ENTER_DESCRIPTION(Breathing_sign_engraver,
78 /* creats*/ "BreathingSign",
79 /* accepts */ "breathing-event",