2 clef.cc -- implement Clef_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>,
7 Mats Bengtsson <matsb@s3.kth.se>
11 #include "clef-grav.hh"
12 #include "clef-item.hh"
14 #include "command-request.hh"
15 #include "time-description.hh"
17 Clef_engraver::Clef_engraver()
26 Clef_engraver::set_type (String s)
29 if (clef_type_str_ == "violin")
33 else if (clef_type_str_ == "soprano")
37 else if (clef_type_str_ == "alto")
41 else if (clef_type_str_ == "tenor")
45 else if (clef_type_str_ == "bass")
56 Clef_engraver::fill_staff_info (Staff_info &i)
58 i.c0_position_i_l_ = &c0_position_i_;
62 Clef_engraver::read_req (Clef_change_req*c_l)
64 if (!set_type (c_l->clef_str_))
65 c_l->error (_("unknown clef type "));
70 Generate a clef at the start of a measure. (when you see a Bar,
74 Clef_engraver::acknowledge_element (Score_elem_info info)
76 if (info.elem_l_->is_type_b (Bar::static_name ())
77 && clef_type_str_.length_i())
81 clef_p_->default_b_ = true;
86 Clef_engraver::do_creation_processing()
88 Scalar def = get_property ("defaultclef");
89 if (def.operator bool ()) // egcs: Scalar to bool is ambiguous
91 if (clef_type_str_.length_i ())
93 clef_p_->default_b_ = false;
97 Clef_engraver::do_try_request (Request * r_l)
99 Command_req* creq_l= r_l->command();
100 if (!creq_l || !creq_l->clefchange())
103 clef_req_l_ = creq_l->clefchange();
104 read_req (clef_req_l_);
109 Clef_engraver::create_clef()
113 clef_p_ = new Clef_item;
114 clef_p_->break_priority_i_ = -2; // ugh
115 announce_element (Score_elem_info (clef_p_,clef_req_l_));
117 clef_p_->read (*this);
121 Clef_engraver::do_process_requests()
126 clef_p_->default_b_ = false;
131 Clef_engraver::do_pre_move_processing()
135 typeset_element (clef_p_);
140 Clef_engraver::do_post_move_processing()
146 Clef_engraver::do_removal_processing()
153 IMPLEMENT_IS_TYPE_B1(Clef_engraver,Engraver);
154 ADD_THIS_TRANSLATOR(Clef_engraver);