lilypond-1.5.9
[lilypond.git] / lily / rest-grav.cc
blob5791c6bd6611b93ad82e8a5684cfd5ad25ffed96
1 /*
2 rest-grav.cc -- implement Rest_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--1998 Han-Wen Nienhuys <hanwen@stack.nl>
7 */
9 #include "rest-grav.hh"
10 #include "musical-request.hh"
11 #include "dots.hh"
12 #include "rest.hh"
14 Should merge with Note_head_engraver
16 Rest_engraver::Rest_engraver ()
18 rest_req_l_ =0;
19 rest_p_ =0;
20 dot_p_ =0;
23 void
24 Rest_engraver::do_post_move_processing ()
26 rest_req_l_ =0;
29 void
30 Rest_engraver::do_pre_move_processing ()
32 if (rest_p_)
34 typeset_element (rest_p_);
35 rest_p_ =0;
37 if (dot_p_)
39 typeset_element (dot_p_);
40 dot_p_ =0;
44 void
45 Rest_engraver::do_process_requests ()
47 if (rest_req_l_ && !rest_p_)
49 rest_p_ = new Rest;
50 rest_p_->balltype_i_ = rest_req_l_->duration_.durlog_i_;
51 rest_p_->dots_i_ = rest_req_l_->duration_.dots_i_;
52 if (rest_p_->dots_i_)
54 dot_p_ = new Dots;
55 rest_p_->dots_l_ =dot_p_;
56 announce_element (Score_elem_info (dot_p_,0));
58 announce_element (Score_elem_info (rest_p_, rest_req_l_));
62 bool
63 Rest_engraver::do_try_request (Request *r)
65 Musical_req *m = r->musical ();
66 if (!m || !m->rest ())
67 return false;
69 rest_req_l_ = m->rest (); // ugh
70 return true;
73 IMPLEMENT_IS_TYPE_B1(Rest_engraver, Engraver);
74 ADD_THIS_TRANSLATOR(Rest_engraver);