2 rest-grav.cc -- implement Rest_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
8 #include "staff-symbol-referencer.hh"
9 #include "musical-request.hh"
11 #include "rhythmic-head.hh"
12 #include "engraver.hh"
14 class Rest_engraver : public Engraver
16 Rest_req *rest_req_l_;
18 Rhythmic_head * rest_p_;
20 virtual bool do_try_music (Music *);
21 virtual void do_pre_move_processing ();
22 virtual void do_post_move_processing ();
23 virtual void do_process_music ();
26 VIRTUAL_COPY_CONS(Translator);
32 Should merge with Note_head_engraver
34 Rest_engraver::Rest_engraver ()
42 Rest_engraver::do_post_move_processing ()
48 Rest_engraver::do_pre_move_processing ()
52 typeset_element (rest_p_);
57 typeset_element (dot_p_);
63 Rest_engraver::do_process_music ()
65 if (rest_req_l_ && !rest_p_)
67 rest_p_ = new Rhythmic_head (get_property ("basicRestProperties"));
68 Staff_symbol_referencer_interface::set_interface (rest_p_);
71 rest_p_->set_elt_property ("duration-log",
72 gh_int2scm (rest_req_l_->duration_.durlog_i_));
74 if (rest_req_l_->duration_.dots_i_)
76 dot_p_ = new Item (get_property ("basicDotsProperties"));
78 Staff_symbol_referencer_interface::set_interface (dot_p_);
81 rest_p_->set_dots (dot_p_);
82 dot_p_->set_parent (rest_p_, Y_AXIS);
83 dot_p_->add_offset_callback (Dots::quantised_position_callback, Y_AXIS);
84 dot_p_->set_elt_property ("dot-count",
85 gh_int2scm (rest_req_l_->duration_.dots_i_));
86 announce_element (Score_element_info (dot_p_,0));
89 announce_element (Score_element_info (rest_p_, rest_req_l_));
94 Rest_engraver::do_try_music (Music *req)
96 if (Rest_req *r = dynamic_cast <Rest_req *> (req))
105 ADD_THIS_TRANSLATOR(Rest_engraver);