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 "time-description.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-priority", gh_int2scm(-1)); // ugh
37 item_p_->multi_octave_b_ = key_.multi_octave_b_;
38 announce_element (Score_element_info (item_p_,keyreq_l_));
41 for (int i = 0; i < accidental_idx_arr_.size(); i++)
43 Musical_pitch m_l =accidental_idx_arr_[i];
44 int a =m_l.accidental_i_;
45 if (key_.multi_octave_b_)
46 item_p_->add (m_l.steps (), a);
48 item_p_->add (m_l.notename_i_, a);
51 for (int i = 0 ; i < old_accidental_idx_arr_.size(); i++)
53 Musical_pitch m_l =old_accidental_idx_arr_[i];
54 int a =m_l.accidental_i_;
55 if (key_.multi_octave_b_)
56 item_p_->add_old (m_l.steps (), a);
58 item_p_->add_old (m_l.notename_i_, a);
65 Key_engraver::do_try_music (Music * req_l)
67 if (Key_change_req *kc = dynamic_cast <Key_change_req *> (req_l))
70 warning (_ ("FIXME: key change merge"));
79 Key_engraver::acknowledge_element (Score_element_info info)
81 if (dynamic_cast <Clef_change_req *> (info.req_l_))
83 SCM c = get_property ("createKeyOnClefChange", 0);
84 if (gh_boolean_p (c) && gh_scm2bool (c))
87 else if (dynamic_cast<Bar *> (info.elem_l_)
88 && accidental_idx_arr_.size ())
90 bool def = (!item_p_);
94 item_p_->set_elt_property ("visibility-lambda",
95 ly_ch_C_eval_scm ("all-visibility"));
102 Key_engraver::do_process_requests ()
111 Key_engraver::do_pre_move_processing ()
115 typeset_element (item_p_);
125 Key_engraver::read_req (Key_change_req const * r)
127 old_accidental_idx_arr_ = accidental_idx_arr_;
129 SCM prop = get_property ("keyOctaviation", 0);
131 key_.multi_octave_b_ = gh_boolean_p (prop) && gh_scm2bool (prop);
133 accidental_idx_arr_.clear ();
135 if (r->key_.ordinary_key_b_)
137 int no_of_acc = r->key_.ordinary_accidentals_i ();
139 // Hmm, can't these be handled/constructed by Key_change_req?
142 int accidental = 6 ; // First accidental: bes
143 for ( ; no_of_acc < 0 ; no_of_acc++ )
146 m.accidental_i_ = -1;
147 m.notename_i_ = accidental;
148 if (key_.multi_octave_b_)
151 key_.set (m.notename_i_, m.accidental_i_);
152 accidental_idx_arr_.push (m);
154 accidental = (accidental + 3) % 7 ;
159 int accidental = 3 ; // First accidental: fis
160 for ( ; no_of_acc > 0 ; no_of_acc-- )
164 m.notename_i_ = accidental;
165 if (key_.multi_octave_b_)
168 key_.set (m.notename_i_, m.accidental_i_);
169 accidental_idx_arr_.push (m);
171 accidental = (accidental + 4) % 7 ;
177 for (int i = 0; i < r->key_.pitch_arr_.size (); i ++)
179 Musical_pitch m_l =r->key_.pitch_arr_[i];
180 if (key_.multi_octave_b_)
183 key_.set (m_l.notename_i_, m_l.accidental_i_);
185 accidental_idx_arr_.push (m_l);
191 Key_engraver::do_post_move_processing ()
194 old_accidental_idx_arr_.clear ();
197 ADD_THIS_TRANSLATOR (Key_engraver);