/*
breathing_sign-engraver.cc -- implement Breathing_sign_engraver
- Copyright (C) 1999 Michael Krause
+ (c) 1999--2004 Michael Krause
written for the GNU LilyPond music typesetter
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 "event.hh"
+
#include "engraver-group-engraver.hh"
-#include "note-head.hh"
-#include "local-key-item.hh"
+#include "item.hh"
+#include "engraver.hh"
+
+class Breathing_sign_engraver : public Engraver {
+public:
+ TRANSLATOR_DECLARATIONS(Breathing_sign_engraver);
+
+protected:
+ virtual bool try_music (Music *req);
+ virtual void process_acknowledged_grobs ();
+ virtual void stop_translation_timestep ();
-Breathing_sign_engraver::Breathing_sign_engraver()
+private:
+ Music * breathing_sign_req_;
+ Grob * breathing_sign_;
+};
+
+Breathing_sign_engraver::Breathing_sign_engraver ()
{
- breathing_sign_p_ = 0;
- breathing_sign_req_l_ = 0;
+ breathing_sign_ = 0;
+ breathing_sign_req_ = 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_req_ = r;
+ return true;
}
void
-Breathing_sign_engraver::do_process_music()
+Breathing_sign_engraver::process_acknowledged_grobs ()
{
- if(breathing_sign_req_l_)
+ if (breathing_sign_req_ && ! breathing_sign_)
{
- SCM b = get_property ("basicBreathingSignProperties");
- breathing_sign_p_ = new Breathing_sign (b);
- Staff_symbol_referencer_interface st (breathing_sign_p_);
- st.set_interface ();
+ breathing_sign_ = make_item ("BreathingSign");
- announce_element (Score_element_info (breathing_sign_p_, breathing_sign_req_l_));
+ announce_grob(breathing_sign_, breathing_sign_req_->self_scm());
+ breathing_sign_req_ = 0;
}
}
void
-Breathing_sign_engraver::do_pre_move_processing()
+Breathing_sign_engraver::stop_translation_timestep ()
{
- if(breathing_sign_p_)
+ if (breathing_sign_)
{
- typeset_element(breathing_sign_p_);
- breathing_sign_p_ = 0;
+ typeset_grob (breathing_sign_);
+ breathing_sign_ = 0;
}
+ breathing_sign_req_ = 0;
}
-void
-Breathing_sign_engraver::do_post_move_processing()
-{
- breathing_sign_req_l_ = 0;
-}
-ADD_THIS_TRANSLATOR(Breathing_sign_engraver);
+ENTER_DESCRIPTION(Breathing_sign_engraver,
+/* descr */ "",
+/* creats*/ "BreathingSign",
+/* accepts */ "breathing-event",
+/* acks */ "",
+/* reads */ "",
+/* write */ "");