/*
- rest-grav.cc -- implement Rest_engraver
+ rest-engraver.cc -- implement Rest_engraver
source file of the GNU LilyPond music typesetter
- (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#include "rest-engraver.hh"
-#include "musical-request.hh"
+#include "engraver.hh"
+
#include "dots.hh"
-#include "rest.hh"
+#include "duration.hh"
+#include "item.hh"
+#include "pitch.hh"
+#include "rhythmic-head.hh"
+#include "staff-symbol-referencer.hh"
+#include "stream-event.hh"
+
+#include "translator.icc"
+
+class Rest_engraver : public Engraver
+{
+ Stream_event *rest_event_;
+ Item *dot_;
+ Grob *rest_;
+protected:
+ void start_translation_timestep ();
+ void process_music ();
+ DECLARE_TRANSLATOR_LISTENER (rest);
+public:
+ TRANSLATOR_DECLARATIONS (Rest_engraver);
+};
+
/*
Should merge with Note_head_engraver
- */
+*/
Rest_engraver::Rest_engraver ()
{
- rest_req_l_ =0;
- rest_p_ =0;
- dot_p_ =0;
+ rest_event_ = 0;
+ rest_ = 0;
+ dot_ = 0;
}
void
-Rest_engraver::do_post_move_processing ()
+Rest_engraver::start_translation_timestep ()
{
- rest_req_l_ =0;
+ rest_event_ = 0;
+ rest_ = 0;
+ dot_ = 0;
}
void
-Rest_engraver::do_pre_move_processing ()
+Rest_engraver::process_music ()
{
- if (rest_p_)
- {
- typeset_element (rest_p_);
- rest_p_ =0;
- }
- if (dot_p_)
+ if (rest_event_ && !rest_)
{
- typeset_element (dot_p_);
- dot_p_ =0;
- }
-}
+ rest_ = make_item ("Rest", rest_event_->self_scm ());
+ Pitch *p = unsmob_pitch (rest_event_->get_property ("pitch"));
-void
-Rest_engraver::do_process_requests ()
-{
- if (rest_req_l_ && !rest_p_)
- {
- rest_p_ = new Rest;
- rest_p_->balltype_i_ = rest_req_l_->duration_.durlog_i_;
-
- if (rest_req_l_->duration_.dots_i_)
+ if (p)
{
- dot_p_ = new Dots;
- rest_p_->dots_l_ =dot_p_;
- dot_p_->dots_i_ = rest_req_l_->duration_.dots_i_;
- announce_element (Score_element_info (dot_p_,0));
- }
+ int pos = p->steps ();
+ SCM c0 = get_property ("middleCPosition");
+ if (scm_is_number (c0))
+ pos += scm_to_int (c0);
- announce_element (Score_element_info (rest_p_, rest_req_l_));
+ rest_->set_property ("staff-position", scm_from_int (pos));
+ }
}
}
-bool
-Rest_engraver::do_try_music (Music *req)
+IMPLEMENT_TRANSLATOR_LISTENER (Rest_engraver, rest);
+void
+Rest_engraver::listen_rest (Stream_event *ev)
{
- if (Rest_req *r = dynamic_cast <Rest_req *> (req))
- {
- rest_req_l_ = r;
- return true;
- }
- return false;
+ ASSIGN_EVENT_ONCE (rest_event_, ev);
}
+ADD_TRANSLATOR (Rest_engraver,
+ /* doc */
+ "Engrave rests.",
+
+ /* create */
+ "Rest ",
+
+ /* read */
+ "middleCPosition ",
-ADD_THIS_TRANSLATOR(Rest_engraver);
+ /* write */
+ ""
+ );