2 breathing_sign-engraver.cc -- implement Breathing_sign_engraver
4 Copyright (C) 1999 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"
18 #include "musical-request.hh"
19 #include "command-request.hh"
20 #include "engraver-group-engraver.hh"
22 #include "engraver.hh"
23 #include "command-request.hh"
25 class Breathing_sign_engraver : public Engraver {
27 Breathing_sign_engraver();
28 VIRTUAL_COPY_CONS(Translator);
31 virtual bool try_music (Music *req_l);
32 void deprecated_process_music();
34 virtual void stop_translation_timestep();
35 virtual void start_translation_timestep();
38 Breathing_sign_req * breathing_sign_req_l_;
39 Grob * breathing_sign_p_;
42 Breathing_sign_engraver::Breathing_sign_engraver()
44 breathing_sign_p_ = 0;
45 breathing_sign_req_l_ = 0;
49 Breathing_sign_engraver::try_music (Music*r_l)
51 if (Breathing_sign_req * b= dynamic_cast <Breathing_sign_req *> (r_l))
53 breathing_sign_req_l_ = b;
61 Breathing_sign_engraver::deprecated_process_music()
63 if(breathing_sign_req_l_ && ! breathing_sign_p_)
65 SCM b = get_property ("BreathingSign");
66 breathing_sign_p_ = new Item (b);
68 Breathing_sign::set_interface (breathing_sign_p_);
70 announce_grob (breathing_sign_p_, breathing_sign_req_l_);
75 Breathing_sign_engraver::stop_translation_timestep()
79 typeset_grob(breathing_sign_p_);
80 breathing_sign_p_ = 0;
85 Breathing_sign_engraver::start_translation_timestep()
87 breathing_sign_req_l_ = 0;
90 ADD_THIS_TRANSLATOR(Breathing_sign_engraver);