2 key-engraver.cc -- implement Key_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 #include "key-engraver.hh"
10 #include "key-item.hh"
11 #include "command-request.hh"
12 #include "local-key-engraver.hh"
13 #include "musical-request.hh"
14 #include "local-key-item.hh"
16 #include "timing-translator.hh"
17 #include "staff-symbol-referencer.hh"
19 Key_engraver::Key_engraver ()
22 do_post_move_processing ();
26 Key_engraver::key_changed_b () const
32 Key_engraver::create_key ()
36 item_p_ = new Key_item;
37 Staff_symbol_referencer_interface st (item_p_);
40 item_p_->set_elt_property ("break-aligned", SCM_BOOL_T); // ugh
42 item_p_->set_elt_property ("multi-octave",
43 gh_bool2scm (key_.multi_octave_b_));
45 announce_element (Score_element_info (item_p_,keyreq_l_));
48 for (int i = 0; i < accidental_idx_arr_.size(); i++)
50 Musical_pitch m_l =accidental_idx_arr_[i];
51 int a =m_l.accidental_i_;
52 if (key_.multi_octave_b_)
53 item_p_->add (m_l.steps (), a);
55 item_p_->add (m_l.notename_i_, a);
58 for (int i = 0 ; i < old_accidental_idx_arr_.size(); i++)
60 Musical_pitch m_l =old_accidental_idx_arr_[i];
61 int a =m_l.accidental_i_;
62 if (key_.multi_octave_b_)
63 item_p_->add_old (m_l.steps (), a);
65 item_p_->add_old (m_l.notename_i_, a);
72 Key_engraver::do_try_music (Music * req_l)
74 if (Key_change_req *kc = dynamic_cast <Key_change_req *> (req_l))
77 warning (_ ("FIXME: key change merge"));
86 Key_engraver::acknowledge_element (Score_element_info info)
88 if (dynamic_cast <Clef_change_req *> (info.req_l_))
90 SCM c = get_property ("createKeyOnClefChange");
94 else if (dynamic_cast<Bar *> (info.elem_l_)
95 && accidental_idx_arr_.size ())
97 bool def = (!item_p_);
101 item_p_->set_elt_property ("visibility-lambda",
102 ly_eval_str ("all-visible"));
109 Key_engraver::do_process_requests ()
118 Key_engraver::do_pre_move_processing ()
122 typeset_element (item_p_);
132 Key_engraver::read_req (Key_change_req const * r)
134 old_accidental_idx_arr_ = accidental_idx_arr_;
136 SCM prop = get_property ("keyOctaviation");
138 key_.multi_octave_b_ = to_boolean (prop);
140 accidental_idx_arr_.clear ();
142 if (r->key_.ordinary_key_b_)
144 int no_of_acc = r->key_.ordinary_accidentals_i ();
146 // Hmm, can't these be handled/constructed by Key_change_req?
149 int accidental = 6 ; // First accidental: bes
150 for ( ; no_of_acc < 0 ; no_of_acc++ )
153 m.accidental_i_ = -1;
154 m.notename_i_ = accidental;
155 if (key_.multi_octave_b_)
158 key_.set (m.notename_i_, m.accidental_i_);
159 accidental_idx_arr_.push (m);
161 accidental = (accidental + 3) % 7 ;
166 int accidental = 3 ; // First accidental: fis
167 for ( ; no_of_acc > 0 ; no_of_acc-- )
171 m.notename_i_ = accidental;
172 if (key_.multi_octave_b_)
175 key_.set (m.notename_i_, m.accidental_i_);
176 accidental_idx_arr_.push (m);
178 accidental = (accidental + 4) % 7 ;
184 for (int i = 0; i < r->key_.pitch_arr_.size (); i ++)
186 Musical_pitch m_l =r->key_.pitch_arr_[i];
187 if (key_.multi_octave_b_)
190 key_.set (m_l.notename_i_, m_l.accidental_i_);
192 accidental_idx_arr_.push (m_l);
198 Key_engraver::do_post_move_processing ()
201 old_accidental_idx_arr_.clear ();
204 ADD_THIS_TRANSLATOR (Key_engraver);