/*
- rest-grav.cc -- implement Rest_engraver
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1997--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
-#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 ();
+ void listen_rest (Stream_event *);
+public:
+ TRANSLATOR_DECLARATIONS (Rest_engraver);
+};
+
/*
Should merge with Note_head_engraver
- */
-Rest_engraver::Rest_engraver ()
+*/
+Rest_engraver::Rest_engraver (Context *c)
+ : Engraver (c)
{
- 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_)
+ if (rest_event_ && !rest_)
{
- typeset_element (rest_p_);
- rest_p_ =0;
+ rest_ = make_item ("Rest", rest_event_->self_scm ());
+ Pitch *p = unsmob<Pitch> (rest_event_->get_property ("pitch"));
+
+ if (p)
+ {
+ int pos = p->steps ();
+ SCM c0 = get_property ("middleCPosition");
+ if (scm_is_number (c0))
+ pos += scm_to_int (c0);
+
+ rest_->set_property ("staff-position", scm_from_int (pos));
+ }
}
- if (dot_p_)
- {
- typeset_element (dot_p_);
- dot_p_ =0;
- }
}
void
-Rest_engraver::do_process_requests ()
+Rest_engraver::listen_rest (Stream_event *ev)
{
- if (rest_req_l_ && !rest_p_)
- {
- rest_p_ = new Rest;
- rest_p_->balltype_i_ = rest_req_l_->duration_.durlog_i_;
- rest_p_->dots_i_ = rest_req_l_->duration_.dots_i_;
- if (rest_p_->dots_i_)
- {
- dot_p_ = new Dots;
- rest_p_->dots_l_ =dot_p_;
- announce_element (Score_element_info (dot_p_,0));
- }
- announce_element (Score_element_info (rest_p_, rest_req_l_));
- }
+ ASSIGN_EVENT_ONCE (rest_event_, ev);
}
-bool
-Rest_engraver::do_try_request (Request *r)
+void
+Rest_engraver::boot ()
{
- Musical_req *m = r->access_Musical_req ();
- if (!m || !m->access_Rest_req ())
- return false;
-
- rest_req_l_ = m->access_Rest_req (); // ugh
- return true;
+ ADD_LISTENER (Rest_engraver, rest);
}
-IMPLEMENT_IS_TYPE_B1(Rest_engraver, Engraver);
-ADD_THIS_TRANSLATOR(Rest_engraver);
+ADD_TRANSLATOR (Rest_engraver,
+ /* doc */
+ "Engrave rests.",
+
+ /* create */
+ "Rest ",
+
+ /* read */
+ "middleCPosition ",
+
+ /* write */
+ ""
+ );