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"
18 Key_engraver::Key_engraver ()
21 do_post_move_processing ();
25 Key_engraver::key_changed_b () const
31 Key_engraver::create_key ()
35 item_p_ = new Key_item;
36 item_p_->set_elt_property ("break-aligned", SCM_BOOL_T); // ugh
38 item_p_->multi_octave_b_ = key_.multi_octave_b_;
39 announce_element (Score_element_info (item_p_,keyreq_l_));
42 for (int i = 0; i < accidental_idx_arr_.size(); i++)
44 Musical_pitch m_l =accidental_idx_arr_[i];
45 int a =m_l.accidental_i_;
46 if (key_.multi_octave_b_)
47 item_p_->add (m_l.steps (), a);
49 item_p_->add (m_l.notename_i_, a);
52 for (int i = 0 ; i < old_accidental_idx_arr_.size(); i++)
54 Musical_pitch m_l =old_accidental_idx_arr_[i];
55 int a =m_l.accidental_i_;
56 if (key_.multi_octave_b_)
57 item_p_->add_old (m_l.steps (), a);
59 item_p_->add_old (m_l.notename_i_, a);
66 Key_engraver::do_try_music (Music * req_l)
68 if (Key_change_req *kc = dynamic_cast <Key_change_req *> (req_l))
71 warning (_ ("FIXME: key change merge"));
80 Key_engraver::acknowledge_element (Score_element_info info)
82 if (dynamic_cast <Clef_change_req *> (info.req_l_))
84 SCM c = get_property ("createKeyOnClefChange", 0);
85 if (gh_boolean_p (c) && gh_scm2bool (c))
88 else if (dynamic_cast<Bar *> (info.elem_l_)
89 && accidental_idx_arr_.size ())
91 bool def = (!item_p_);
95 item_p_->set_elt_property ("visibility-lambda",
96 ly_eval_str ("all-visibility"));
103 Key_engraver::do_process_requests ()
112 Key_engraver::do_pre_move_processing ()
116 typeset_element (item_p_);
126 Key_engraver::read_req (Key_change_req const * r)
128 old_accidental_idx_arr_ = accidental_idx_arr_;
130 SCM prop = get_property ("keyOctaviation", 0);
132 key_.multi_octave_b_ = gh_boolean_p (prop) && gh_scm2bool (prop);
134 accidental_idx_arr_.clear ();
136 if (r->key_.ordinary_key_b_)
138 int no_of_acc = r->key_.ordinary_accidentals_i ();
140 // Hmm, can't these be handled/constructed by Key_change_req?
143 int accidental = 6 ; // First accidental: bes
144 for ( ; no_of_acc < 0 ; no_of_acc++ )
147 m.accidental_i_ = -1;
148 m.notename_i_ = accidental;
149 if (key_.multi_octave_b_)
152 key_.set (m.notename_i_, m.accidental_i_);
153 accidental_idx_arr_.push (m);
155 accidental = (accidental + 3) % 7 ;
160 int accidental = 3 ; // First accidental: fis
161 for ( ; no_of_acc > 0 ; no_of_acc-- )
165 m.notename_i_ = accidental;
166 if (key_.multi_octave_b_)
169 key_.set (m.notename_i_, m.accidental_i_);
170 accidental_idx_arr_.push (m);
172 accidental = (accidental + 4) % 7 ;
178 for (int i = 0; i < r->key_.pitch_arr_.size (); i ++)
180 Musical_pitch m_l =r->key_.pitch_arr_[i];
181 if (key_.multi_octave_b_)
184 key_.set (m_l.notename_i_, m_l.accidental_i_);
186 accidental_idx_arr_.push (m_l);
192 Key_engraver::do_post_move_processing ()
195 old_accidental_idx_arr_.clear ();
198 ADD_THIS_TRANSLATOR (Key_engraver);