2 multi_measure_rest-engraver.cc -- implement Multi_measure_rest_engraver
4 (c) 1998 Jan Nieuwenhuizen <janneke@gnu.org>
5 Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 #include "musical-request.hh"
10 #include "multi-measure-rest.hh"
11 #include "multi-measure-rest-engraver.hh"
12 #include "score-column.hh"
13 #include "time-description.hh"
16 ADD_THIS_TRANSLATOR (Multi_measure_rest_engraver);
18 Multi_measure_rest_engraver::Multi_measure_rest_engraver ()
21 rest_item_creation_mom_ = rest_req_stop_mom_ =0;
22 multi_measure_req_l_ = 0;
27 Multi_measure_rest_engraver::do_try_music (Music* req_l)
29 if (Multi_measure_rest_req *mr = dynamic_cast<Multi_measure_rest_req *> (req_l))
31 if (multi_measure_req_l_)
32 if (!multi_measure_req_l_->equal_b (mr)
33 || req_start_mom_ != now_moment ())
36 multi_measure_req_l_ = mr;
37 req_start_mom_ = now_moment ();
39 rest_req_stop_mom_ = req_start_mom_ + multi_measure_req_l_->duration_.length ();
46 Multi_measure_rest_engraver::do_process_requests ()
48 if (multi_measure_req_l_ && !mmrest_p_)
50 Time_description const *time = get_staff_info().time_C_;
51 mmrest_p_ = new Multi_measure_rest;
52 rest_item_creation_mom_ = time->when_mom ();
53 announce_element (Score_element_info (mmrest_p_, multi_measure_req_l_));
54 start_measure_i_ = time->bars_i_;
59 Multi_measure_rest_engraver::do_pre_move_processing ()
61 Moment now (now_moment ());
62 if (mmrest_p_ && rest_item_creation_mom_ == now)
64 typeset_element (mmrest_p_);
69 Multi_measure_rest_engraver::do_post_move_processing ()
71 Time_description const *time = get_staff_info().time_C_;
72 Moment now (now_moment ());
73 if (rest_req_stop_mom_ <= now)
74 multi_measure_req_l_ = 0;
76 if (mmrest_p_ && (!time->whole_in_measure_ || !multi_measure_req_l_))
78 assert (rest_item_creation_mom_ < now);
79 mmrest_p_->measures_i_ = time->bars_i_ - start_measure_i_;