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()
30 struct Clef_settings {
35 {"treble", "treble", -2},
36 {"violin", "treble", -2},
39 {"scarlatti", "scarlatti", 0 },
40 {"french", "treble",-4 },
41 {"soprano", "alto",-4 },
42 {"mezzosoprano", "alto",-2 },
45 {"baritone", "alto",4 },
46 {"varbaritone", "bass",0 },
49 {"subbass", "bass",4},
57 Ugh. Should have support for Dictionaries in mudela.
60 Clef_engraver::set_type (String s)
62 if (s.right_str(2) == "_8") // Down one octave
65 s = s.left_str(s.length_i() - 2);
67 else if (s.right_str(2) == "^8") // Up one octave
70 s = s.left_str(s.length_i() - 2);
76 for (Clef_settings *c = clef_settings; !found && c->name; c++)
80 clef_type_str_ = c->cleftype;
81 clef_position_i_ = c->position;
87 switch(toupper (s[0]))
90 clef_type_str_ = "bass";
93 clef_type_str_ = "treble";
96 clef_type_str_ = "alto";
101 clef_position_i_ = 2 * (s[1] - '0') - 6;
104 if (clef_type_str_ == "treble")
105 c0_position_i_ = clef_position_i_ - 4;
106 else if (clef_type_str_ == "alto")
107 c0_position_i_ = clef_position_i_;
108 else if (clef_type_str_ == "bass")
109 c0_position_i_ = clef_position_i_ + 4;
110 else if (clef_type_str_ == "scarlatti")
115 c0_position_i_ -= (int) octave_dir_ * 7;
121 Clef_engraver::read_req (Clef_change_req*c_l)
123 if (!set_type (c_l->clef_str_))
124 c_l->error (_ ("unknown clef type "));
129 Generate a clef at the start of a measure. (when you see a Bar,
133 Clef_engraver::acknowledge_element (Score_element_info info)
135 if (dynamic_cast<Bar*>(info.elem_l_)
136 && clef_type_str_.length_i())
140 for (int i=0; i < clef_p_arr_.size (); i++)
142 clef_p_arr_[i]->default_b_ = true;
147 /* ugh; should make Clef_referenced baseclass */
148 Item * it_l =dynamic_cast <Item *> (info.elem_l_);
151 if (Note_head * h = dynamic_cast<Note_head*>(it_l))
153 // h->position_i_ += c0_position_i_;
154 h->position_i_ = h->steps_i_ + c0_position_i_;
156 else if (Local_key_item *i = dynamic_cast<Local_key_item*> (it_l))
158 i->c0_position_i_ =c0_position_i_;
160 else if (Key_item *k = dynamic_cast<Key_item*>(it_l))
162 k-> set_c_position (c0_position_i_);
168 Clef_engraver::do_creation_processing()
170 Scalar def = get_property ("defaultClef", 0);
171 if (def.to_bool ()) // egcs: Scalar to bool is ambiguous
174 if (clef_type_str_.length_i ())
177 for (int i=0; i < clef_p_arr_.size (); i++)
179 clef_p_arr_[i]->default_b_ = false;
184 Clef_engraver::do_try_music (Music * r_l)
186 if (Clef_change_req *cl = dynamic_cast <Clef_change_req *> (r_l))
189 read_req (clef_req_l_);
198 Clef_engraver::create_clef()
200 if (clef_type_str_ == "scarlatti")
202 while (clef_p_arr_.size () < 2)
204 Clef_item *ct= new Clef_item;
205 ct->break_priority_i_ = -2; // UGH
206 announce_element (Score_element_info (ct, clef_req_l_));
207 clef_p_arr_.push (ct);
209 clef_p_arr_[0]->symbol_ = "treble";
210 clef_p_arr_[0]->y_position_i_ = 4;
211 clef_p_arr_[1]->symbol_ = "bass";
212 clef_p_arr_[1]->y_position_i_ = -4;
216 if (!clef_p_arr_.size ())
218 Clef_item *c= new Clef_item;
219 c->break_priority_i_ = -2; // ugh
220 announce_element (Score_element_info (c, clef_req_l_));
221 clef_p_arr_.push (c);
224 for (int i=0; i < clef_p_arr_.size (); i++)
226 clef_p_arr_[i]->symbol_ = clef_type_str_;
227 clef_p_arr_[i]->y_position_i_ = clef_position_i_;
228 clef_p_arr_[i]->octave_dir_ = octave_dir_;
235 Clef_engraver::do_process_requests()
240 for (int i=0; i < clef_p_arr_.size (); i++)
241 clef_p_arr_[i]->default_b_ = false;
246 Clef_engraver::do_pre_move_processing()
248 for (int i=0; i <clef_p_arr_.size (); i++)
250 typeset_element (clef_p_arr_[i]);
252 clef_p_arr_.clear ();
256 Clef_engraver::do_post_move_processing()
262 Clef_engraver::do_removal_processing()
264 if (clef_p_arr_.size ())
272 ADD_THIS_TRANSLATOR(Clef_engraver);