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 "score-engraver.hh"
11 #include "bar-engraver.hh"
12 #include "staff-bar.hh"
13 #include "musical-request.hh"
14 #include "multi-measure-rest.hh"
15 #include "command-request.hh"
16 #include "timing-engraver.hh"
17 #include "engraver-group-engraver.hh"
20 Bar_engraver::Bar_engraver()
23 do_post_move_processing();
30 Bar_engraver::create_bar ()
34 bar_p_ = new Staff_bar;
35 bar_p_->set_elt_property (break_priority_scm_sym, gh_int2scm (0));
37 // urg: "" != empty...
38 String default_type = get_property ("defaultBarType", 0);
39 if (default_type.length_i ())
41 bar_p_->type_str_ = default_type;
45 urg. Why did I implement this?
47 Scalar prop = get_property ("barAtLineStart", 0);
50 bar_p_->set_elt_property (at_line_start_scm_sym, SCM_BOOL_T);
52 prop = get_property ("barSize", 0);
55 bar_p_->set_elt_property (bar_size_scm_sym,
56 gh_double2scm (Real(prop)));
58 announce_element (Score_element_info (bar_p_, 0));
63 Make a barline. If there are both |: and :| requested, merge them
68 Bar_engraver::request_bar (String requested_type)
70 Scalar prop = get_property ("barAtLineStart", 0);
73 Scalar prop = get_property ("barAtLineStart", 0);
77 bool bar_existed = bar_p_;
79 if (bar_existed && requested_type == "")
83 else if (((requested_type == "|:") && (bar_p_->type_str_ == ":|"))
84 || ((requested_type == ":|") && (bar_p_->type_str_ == "|:")))
85 bar_p_->type_str_ = ":|:";
87 bar_p_->type_str_ = requested_type;
91 Bar_engraver::do_creation_processing ()
96 Bar_engraver::do_removal_processing ()
100 typeset_element (bar_p_);
106 Bar_engraver::do_process_requests()
108 Translator * t = daddy_grav_l ()->get_simple_translator ("Timing_engraver");
110 Timing_engraver * te = dynamic_cast<Timing_engraver*>(t);
111 String which = (te) ? te->which_bar () : "";
113 if (which.length_i ())
116 bar_p_->type_str_ = which;
121 Score_engraver * e = 0;
122 Translator * t = daddy_grav_l ();
123 for (; !e && t; t = t->daddy_trans_l_)
125 e = dynamic_cast<Score_engraver*> (t);
129 programming_error ("No score engraver!");
137 Bar_engraver::do_pre_move_processing()
141 typeset_element (bar_p_);
146 ADD_THIS_TRANSLATOR(Bar_engraver);