2 key-engraver.cc -- implement Key_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "key-engraver.hh"
11 #include "key-item.hh"
12 #include "command-request.hh"
13 #include "local-key-engraver.hh"
14 #include "musical-request.hh"
15 #include "local-key-item.hh"
17 #include "timing-translator.hh"
18 #include "staff-symbol-referencer.hh"
20 ADD_THIS_TRANSLATOR (Key_engraver);
22 Key_engraver::Key_engraver ()
25 do_post_move_processing ();
29 Key_engraver::key_changed_b () const
35 Key_engraver::create_key ()
39 item_p_ = new Key_item;
40 Staff_symbol_referencer_interface st (item_p_);
43 item_p_->set_elt_property ("break-aligned", SCM_BOOL_T); // ugh
45 item_p_->set_elt_property ("multi-octave",
46 gh_bool2scm (key_.multi_octave_b_));
48 announce_element (Score_element_info (item_p_,keyreq_l_));
51 for (int i = 0; i < accidental_idx_arr_.size(); i++)
53 Musical_pitch m_l =accidental_idx_arr_[i];
54 int a =m_l.accidental_i_;
55 if (key_.multi_octave_b_)
56 item_p_->add (m_l.steps (), a);
58 item_p_->add (m_l.notename_i_, a);
61 for (int i = 0 ; i < old_accidental_idx_arr_.size(); i++)
63 Musical_pitch m_l =old_accidental_idx_arr_[i];
64 int a =m_l.accidental_i_;
65 if (key_.multi_octave_b_)
66 item_p_->add_old (m_l.steps (), a);
68 item_p_->add_old (m_l.notename_i_, a);
75 Key_engraver::do_try_music (Music * req_l)
77 if (Key_change_req *kc = dynamic_cast <Key_change_req *> (req_l))
80 warning (_ ("FIXME: key change merge"));
89 Key_engraver::acknowledge_element (Score_element_info info)
91 if (dynamic_cast <Clef_change_req *> (info.req_l_))
93 SCM c = get_property ("createKeyOnClefChange", 0);
97 else if (dynamic_cast<Bar *> (info.elem_l_)
98 && accidental_idx_arr_.size ())
100 bool def = (!item_p_);
104 item_p_->set_elt_property ("visibility-lambda",
105 ly_eval_str ("all-visibility"));
112 Key_engraver::do_process_requests ()
121 Key_engraver::do_pre_move_processing ()
125 typeset_element (item_p_);
135 Key_engraver::read_req (Key_change_req const * r)
137 old_accidental_idx_arr_ = accidental_idx_arr_;
139 SCM prop = get_property ("keyOctaviation", 0);
141 key_.multi_octave_b_ = to_boolean (prop);
143 accidental_idx_arr_.clear ();
145 if (r->key_.ordinary_key_b_)
147 int no_of_acc = r->key_.ordinary_accidentals_i ();
149 // Hmm, can't these be handled/constructed by Key_change_req?
152 int accidental = 6 ; // First accidental: bes
153 for ( ; no_of_acc < 0 ; no_of_acc++ )
156 m.accidental_i_ = -1;
157 m.notename_i_ = accidental;
158 if (key_.multi_octave_b_)
161 key_.set (m.notename_i_, m.accidental_i_);
162 accidental_idx_arr_.push (m);
164 accidental = (accidental + 3) % 7 ;
169 int accidental = 3 ; // First accidental: fis
170 for ( ; no_of_acc > 0 ; no_of_acc-- )
174 m.notename_i_ = accidental;
175 if (key_.multi_octave_b_)
178 key_.set (m.notename_i_, m.accidental_i_);
179 accidental_idx_arr_.push (m);
181 accidental = (accidental + 4) % 7 ;
187 for (int i = 0; i < r->key_.pitch_arr_.size (); i ++)
189 Musical_pitch m_l =r->key_.pitch_arr_[i];
190 if (key_.multi_octave_b_)
193 key_.set (m_l.notename_i_, m_l.accidental_i_);
195 accidental_idx_arr_.push (m_l);
201 Key_engraver::do_post_move_processing ()
204 old_accidental_idx_arr_.clear ();