2 rest-engraver.cc -- implement Rest_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
11 #include "duration.hh"
13 #include "staff-symbol-referencer.hh"
15 #include "rhythmic-head.hh"
19 class Rest_engraver : public Engraver
25 virtual bool try_music (Music *);
26 void start_translation_timestep ();
27 void process_music ();
30 TRANSLATOR_DECLARATIONS (Rest_engraver);
34 Should merge with Note_head_engraver
36 Rest_engraver::Rest_engraver ()
44 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));
94 Rest_engraver::try_music (Music *m)
96 if (m->is_mus_type ("rest-event"))
104 #include "translator.icc"
106 ADD_TRANSLATOR (Rest_engraver,
108 /* creats*/ "Rest Dots",
109 /* accepts */ "rest-event",
110 /* reads */ "middleCPosition",