2 local-key-engraver.cc -- implement Local_key_engraver
4 (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
8 #include "musical-request.hh"
9 #include "command-request.hh"
10 #include "local-key-engraver.hh"
11 #include "local-key-item.hh"
12 #include "key-engraver.hh"
14 #include "key-item.hh"
16 #include "note-head.hh"
17 #include "timing-translator.hh"
18 #include "engraver-group-engraver.hh"
19 #include "grace-align-item.hh"
20 #include "staff-symbol-referencer.hh"
22 Local_key_engraver::Local_key_engraver()
30 Local_key_engraver::do_creation_processing ()
35 Breaks if Key_engraver is removed from under us.
38 daddy_grav_l()->get_simple_translator ("Key_engraver");
40 key_grav_l_ = dynamic_cast<Key_engraver *> (result);
44 warning (_ ("out of tune:"));
45 warning (_f ("Can't find: `%s'", "Key_engraver"));
49 local_key_ = key_grav_l_->key_;
54 (if we are grace) get key info from parent Local_key_engraver
59 Local_key_engraver::process_acknowledged ()
61 if (!key_item_p_ && mel_l_arr_.size())
63 SCM f = get_property ("forgetAccidentals",0);
64 bool forget = to_boolean (f);
65 for (int i=0; i < mel_l_arr_.size(); i++)
67 Item * support_l = support_l_arr_[i];
68 Note_req * note_l = mel_l_arr_[i];
70 /* see if there's a tie that "changes" the accidental */
71 /* works because if there's a tie, the note to the left
72 is of the same pitch as the actual note */
73 bool tie_changes = tied_l_arr_.find_l (support_l)
74 && !local_key_.different_acc (note_l->pitch_);
78 && ((note_l->forceacc_b_
79 || !local_key_.different_acc (note_l->pitch_)
80 || local_key_.internal_forceacc (note_l->pitch_)))
86 key_item_p_ = new Local_key_item;
87 Staff_symbol_referencer_interface si(key_item_p_);
90 announce_element (Score_element_info (key_item_p_, 0));
93 key_item_p_->add_pitch (note_l->pitch_,
94 note_l->cautionary_b_,
95 local_key_.double_to_single_acc(note_l->pitch_));
96 key_item_p_->add_support (support_l);
101 local_key_.set (note_l->pitch_);
102 if (!tied_l_arr_.find_l (support_l))
104 local_key_.clear_internal_forceacc (note_l->pitch_);
106 else if (tie_changes)
108 local_key_.set_internal_forceacc (note_l->pitch_);
113 if (key_item_p_ && grace_align_l_)
115 grace_align_l_->add_support (key_item_p_);
122 Local_key_engraver::do_removal_processing ()
124 // TODO: signal accidentals to Local_key_engraver the
128 Local_key_engraver::do_pre_move_processing()
132 for (int i=0; i < support_l_arr_.size(); i++)
133 key_item_p_->add_support (support_l_arr_[i]);
135 typeset_element (key_item_p_);
142 support_l_arr_.clear();
143 forced_l_arr_.clear();
147 Local_key_engraver::acknowledge_element (Score_element_info info)
149 SCM wg= get_property ("weAreGraceContext", 0);
151 bool selfgr = gh_boolean_p (wg) &&gh_scm2bool (wg);
152 bool he_gr = to_boolean (info.elem_l_->get_elt_property ("grace"));
154 Grace_align_item * gai = dynamic_cast<Grace_align_item*> (info.elem_l_);
155 if (he_gr && !selfgr && gai)
157 grace_align_l_ = gai;
159 Note_req * note_l = dynamic_cast <Note_req *> (info.req_l_);
160 Note_head * note_head = dynamic_cast<Note_head *> (info.elem_l_);
167 if (note_l && note_head)
169 mel_l_arr_.push (note_l);
170 support_l_arr_.push (note_head);
172 else if (Tie * tie_l = dynamic_cast<Tie *> (info.elem_l_))
174 tied_l_arr_.push (tie_l->head (RIGHT));
179 Local_key_engraver::do_process_requests()
181 Translator * tr = daddy_grav_l()->get_simple_translator ("Timing_engraver"); // ugh
182 Timing_translator * time_C_ = dynamic_cast<Timing_translator*> (tr);
184 if (time_C_ && !time_C_->measure_position ())
186 SCM n = get_property ("noResetKey",0);
187 bool no_res = to_boolean (n);
188 if (!no_res && key_grav_l_)
189 local_key_= key_grav_l_->key_;
191 else if (key_grav_l_ && key_grav_l_->key_changed_b ())
193 local_key_ = key_grav_l_->key_;
199 ADD_THIS_TRANSLATOR(Local_key_engraver);