2 bar-engraver.cc -- implement Bar_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997, 1998, 1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
7 Jan Nieuwenhuizen <janneke@gnu.org>
10 #include "bar-engraver.hh"
12 #include "musical-request.hh"
13 #include "multi-measure-rest.hh"
14 #include "command-request.hh"
15 #include "time-description.hh"
16 #include "engraver-group.hh"
17 #include "repeated-music.hh"
19 Bar_engraver::Bar_engraver()
22 do_post_move_processing();
26 Bar_engraver::do_try_music (Music*r_l)
28 if (Bar_req * b= dynamic_cast <Bar_req *> (r_l))
30 if (bar_req_l_ && bar_req_l_->equal_b (b)) // huh?
42 Bar_engraver::acknowledge_element (Score_element_info i)
44 if (Bar *b = dynamic_cast<Bar *> (i.elem_l_))
46 // only bar-engraver should create bars
52 Bar_engraver::create_bar ()
57 bar_p_->break_priority_i_ = 0;
58 // urg: "" != empty...
59 String default_type = get_property ("defaultBarType", 0);
60 if (default_type.length_i ())
62 bar_p_->type_str_ = default_type;
64 announce_element (Score_element_info (bar_p_, bar_req_l_));
69 Bar_engraver::request_bar (String type_str)
72 if (((type_str == "|:") && (bar_p_->type_str_ == ":|"))
73 || ((type_str == ":|") && (bar_p_->type_str_ == "|:")))
74 bar_p_->type_str_ = ":|:";
76 bar_p_->type_str_ = type_str;
80 Bar_engraver::do_creation_processing ()
83 bar_p_->type_str_ = "";
84 Scalar prop = get_property ("barAuto", 0);
85 auto_create_bar_b_ = prop.to_bool ();
89 Bar_engraver::do_removal_processing ()
93 typeset_element (bar_p_);
99 Bar_engraver::do_process_requests()
101 Time_description const *time = get_staff_info().time_C_;
105 bar_p_->type_str_ = bar_req_l_->type_str_;
107 else if (!now_moment ())
110 bar_p_->type_str_ = "";
114 Scalar always = get_property ("barAlways", 0);
115 if ((time && !time->whole_in_measure_) || always.to_bool ())
117 if (auto_create_bar_b_)
119 Scalar prop = get_property ("barAuto", 0);
120 auto_create_bar_b_ = prop.to_bool ();
127 r.penalty_i_ = Break_req::DISALLOW;
128 daddy_grav_l ()->try_music (&r);
134 Bar_engraver::do_pre_move_processing()
138 typeset_element (bar_p_);
144 Bar_engraver::do_post_move_processing()
151 ADD_THIS_TRANSLATOR(Bar_engraver);