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>
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_->multi_octave_b_ = key_.multi_octave_b_;
43 announce_element (Score_element_info (item_p_,keyreq_l_));
46 for (int i = 0; i < accidental_idx_arr_.size(); i++)
48 Musical_pitch m_l =accidental_idx_arr_[i];
49 int a =m_l.accidental_i_;
50 if (key_.multi_octave_b_)
51 item_p_->add (m_l.steps (), a);
53 item_p_->add (m_l.notename_i_, a);
56 for (int i = 0 ; i < old_accidental_idx_arr_.size(); i++)
58 Musical_pitch m_l =old_accidental_idx_arr_[i];
59 int a =m_l.accidental_i_;
60 if (key_.multi_octave_b_)
61 item_p_->add_old (m_l.steps (), a);
63 item_p_->add_old (m_l.notename_i_, a);
70 Key_engraver::do_try_music (Music * req_l)
72 if (Key_change_req *kc = dynamic_cast <Key_change_req *> (req_l))
75 warning (_ ("FIXME: key change merge"));
84 Key_engraver::acknowledge_element (Score_element_info info)
86 if (dynamic_cast <Clef_change_req *> (info.req_l_))
88 SCM c = get_property ("createKeyOnClefChange", 0);
89 if (gh_boolean_p (c) && gh_scm2bool (c))
92 else if (dynamic_cast<Bar *> (info.elem_l_)
93 && accidental_idx_arr_.size ())
95 bool def = (!item_p_);
99 item_p_->set_elt_property ("visibility-lambda",
100 ly_eval_str ("all-visibility"));
107 Key_engraver::do_process_requests ()
116 Key_engraver::do_pre_move_processing ()
120 typeset_element (item_p_);
130 Key_engraver::read_req (Key_change_req const * r)
132 old_accidental_idx_arr_ = accidental_idx_arr_;
134 SCM prop = get_property ("keyOctaviation", 0);
136 key_.multi_octave_b_ = gh_boolean_p (prop) && gh_scm2bool (prop);
138 accidental_idx_arr_.clear ();
140 if (r->key_.ordinary_key_b_)
142 int no_of_acc = r->key_.ordinary_accidentals_i ();
144 // Hmm, can't these be handled/constructed by Key_change_req?
147 int accidental = 6 ; // First accidental: bes
148 for ( ; no_of_acc < 0 ; no_of_acc++ )
151 m.accidental_i_ = -1;
152 m.notename_i_ = accidental;
153 if (key_.multi_octave_b_)
156 key_.set (m.notename_i_, m.accidental_i_);
157 accidental_idx_arr_.push (m);
159 accidental = (accidental + 3) % 7 ;
164 int accidental = 3 ; // First accidental: fis
165 for ( ; no_of_acc > 0 ; no_of_acc-- )
169 m.notename_i_ = accidental;
170 if (key_.multi_octave_b_)
173 key_.set (m.notename_i_, m.accidental_i_);
174 accidental_idx_arr_.push (m);
176 accidental = (accidental + 4) % 7 ;
182 for (int i = 0; i < r->key_.pitch_arr_.size (); i ++)
184 Musical_pitch m_l =r->key_.pitch_arr_[i];
185 if (key_.multi_octave_b_)
188 key_.set (m_l.notename_i_, m_l.accidental_i_);
190 accidental_idx_arr_.push (m_l);
196 Key_engraver::do_post_move_processing ()
199 old_accidental_idx_arr_.clear ();
202 ADD_THIS_TRANSLATOR (Key_engraver);