2 rest-engraver.cc -- implement Rest_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
12 #include "duration.hh"
15 #include "rhythmic-head.hh"
16 #include "staff-symbol-referencer.hh"
17 #include "stream-event.hh"
19 #include "translator.icc"
21 class Rest_engraver : public Engraver
23 Stream_event *rest_event_;
27 void start_translation_timestep ();
28 void process_music ();
29 DECLARE_TRANSLATOR_LISTENER (rest);
31 TRANSLATOR_DECLARATIONS (Rest_engraver);
35 Should merge with Note_head_engraver
37 Rest_engraver::Rest_engraver ()
45 Rest_engraver::start_translation_timestep ()
53 Rest_engraver::process_music ()
55 if (rest_event_ && !rest_)
57 rest_ = make_item ("Rest", rest_event_->self_scm ());
59 int durlog = unsmob_duration (rest_event_->get_property ("duration"))->duration_log ();
61 rest_->set_property ("duration-log",
62 scm_from_int (durlog));
64 int dots = unsmob_duration (rest_event_->get_property ("duration"))->dot_count ();
68 dot_ = make_item ("Dots", SCM_EOL);
70 Rhythmic_head::set_dots (rest_, dot_);
71 dot_->set_parent (rest_, Y_AXIS);
72 dot_->set_property ("dot-count", scm_from_int (dots));
75 Pitch *p = unsmob_pitch (rest_event_->get_property ("pitch"));
78 This is ridiculous -- rests don't have pitch, but we act as if
83 int pos = p->steps ();
84 SCM c0 = get_property ("middleCPosition");
85 if (scm_is_number (c0))
86 pos += scm_to_int (c0);
88 rest_->set_property ("staff-position", scm_from_int (pos));
93 IMPLEMENT_TRANSLATOR_LISTENER (Rest_engraver, rest);
95 Rest_engraver::listen_rest (Stream_event *ev)
97 ASSIGN_EVENT_ONCE (rest_event_, ev);
100 ADD_TRANSLATOR (Rest_engraver,
102 /* create */ "Rest Dots",
103 /* accept */ "rest-event",
104 /* read */ "middleCPosition",