2 clef.cc -- implement Clef_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>,
7 Mats Bengtsson <matsb@s3.kth.se>
12 #include "clef-engraver.hh"
13 #include "clef-item.hh"
15 #include "command-request.hh"
16 #include "time-description.hh"
17 #include "note-head.hh"
18 #include "key-item.hh"
19 #include "local-key-item.hh"
21 Clef_engraver::Clef_engraver()
32 Ugh. Should have support for Dictionaries in mudela.
35 Clef_engraver::set_type (String s)
37 if (s.right_str(2) == "_8") // Down one octave
40 s = s.left_str(s.length_i() - 2);
42 else if (s.right_str(2) == "^8") // Up one octave
45 s = s.left_str(s.length_i() - 2);
51 s == "G" || s == "G2")
53 clef_type_str_ = "violin";
54 clef_position_i_ = -2;
56 else if (s == "french")
58 clef_type_str_ = "violin";
59 clef_position_i_ = -4;
61 else if (s == "soprano")
63 clef_type_str_ = "alto";
64 clef_position_i_ = -4;
66 else if (s == "mezzosoprano")
68 clef_type_str_ = "alto";
69 clef_position_i_ = -2;
73 clef_type_str_ = "alto";
76 else if (s == "tenor")
78 clef_type_str_ = "alto";
81 else if (s == "baritone")
83 clef_type_str_ = "alto";
86 else if (s == "varbaritone")
88 clef_type_str_ = "bass";
91 else if (s == "bass" || s == "F")
93 clef_type_str_ = "bass";
96 else if (s == "subbass")
98 clef_type_str_ = "bass";
103 switch(toupper (s[0]))
106 clef_type_str_ = "bass";
109 clef_type_str_ = "violin";
112 clef_type_str_ = "alto";
117 clef_position_i_ = 2 * (s[1] - '0') - 6;
119 if (clef_type_str_ == "violin")
120 c0_position_i_ = clef_position_i_ - 4;
121 else if (clef_type_str_ == "alto")
122 c0_position_i_ = clef_position_i_;
123 else if (clef_type_str_ == "bass")
124 c0_position_i_ = clef_position_i_ + 4;
129 c0_position_i_ -= (int) octave_dir_ * 7;
135 Clef_engraver::read_req (Clef_change_req*c_l)
137 if (!set_type (c_l->clef_str_))
138 c_l->error (_ ("unknown clef type "));
143 Generate a clef at the start of a measure. (when you see a Bar,
147 Clef_engraver::acknowledge_element (Score_element_info info)
149 if (dynamic_cast<Bar*>(info.elem_l_)
150 && clef_type_str_.length_i())
154 clef_p_->default_b_ = true;
157 /* ugh; should make Clef_referenced baseclass */
158 Item * it_l =dynamic_cast <Item *> (info.elem_l_);
161 if (Note_head * h = dynamic_cast<Note_head*>(it_l))
163 h->position_i_ += c0_position_i_;
165 else if (Local_key_item *i = dynamic_cast<Local_key_item*> (it_l))
167 i->c0_position_i_ =c0_position_i_;
169 else if (Key_item *k = dynamic_cast<Key_item*>(it_l))
171 k-> set_c_position (c0_position_i_);
177 Clef_engraver::do_creation_processing()
179 Scalar def = get_property ("defaultClef");
180 if (def.to_bool ()) // egcs: Scalar to bool is ambiguous
183 if (clef_type_str_.length_i ())
186 clef_p_->default_b_ = false;
191 Clef_engraver::do_try_request (Request * r_l)
193 if (Clef_change_req *cl = dynamic_cast <Clef_change_req *> (r_l))
196 read_req (clef_req_l_);
205 Clef_engraver::create_clef()
209 clef_p_ = new Clef_item;
210 clef_p_->break_priority_i_ = -2; // ugh
211 announce_element (Score_element_info (clef_p_,clef_req_l_));
213 clef_p_->read (*this);
217 Clef_engraver::do_process_requests()
222 clef_p_->default_b_ = false;
227 Clef_engraver::do_pre_move_processing()
231 typeset_element (clef_p_);
236 Clef_engraver::do_post_move_processing()
242 Clef_engraver::do_removal_processing()
253 IMPLEMENT_IS_TYPE_B1(Clef_engraver,Engraver);
254 ADD_THIS_TRANSLATOR(Clef_engraver);