2 local-key-engraver.cc -- implement Local_key_engraver
4 (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
7 #include "musical-request.hh"
8 #include "command-request.hh"
9 #include "local-key-engraver.hh"
10 #include "local-key-item.hh"
11 #include "key-engraver.hh"
13 #include "key-item.hh"
15 #include "note-head.hh"
16 #include "timing-translator.hh"
17 #include "engraver-group-engraver.hh"
18 #include "grace-align-item.hh"
19 #include "staff-symbol-referencer.hh"
21 Local_key_engraver::Local_key_engraver()
29 Local_key_engraver::do_creation_processing ()
34 Breaks if Key_engraver is removed from under us.
37 daddy_grav_l()->get_simple_translator ("Key_engraver");
39 key_grav_l_ = dynamic_cast<Key_engraver *> (result);
43 warning (_ ("out of tune:"));
44 warning (_f ("Can't find: `%s'", "Key_engraver"));
48 local_key_ = key_grav_l_->key_;
53 (if we are grace) get key info from parent Local_key_engraver
58 Local_key_engraver::process_acknowledged ()
60 if (!key_item_p_ && mel_l_arr_.size())
62 SCM f = get_property ("forgetAccidentals",0);
63 bool forget = to_boolean (f);
64 for (int i=0; i < mel_l_arr_.size(); i++)
66 Item * support_l = support_l_arr_[i];
67 Note_req * note_l = mel_l_arr_[i];
69 /* see if there's a tie that "changes" the accidental */
70 /* works because if there's a tie, the note to the left
71 is of the same pitch as the actual note */
72 bool tie_changes = tied_l_arr_.find_l (support_l)
73 && !local_key_.different_acc (note_l->pitch_);
77 && ((note_l->forceacc_b_
78 || !local_key_.different_acc (note_l->pitch_)
79 || local_key_.internal_forceacc (note_l->pitch_)))
85 key_item_p_ = new Local_key_item;
86 Staff_symbol_referencer_interface si(key_item_p_);
89 announce_element (Score_element_info (key_item_p_, 0));
92 key_item_p_->add_pitch (note_l->pitch_,
93 note_l->cautionary_b_,
94 local_key_.double_to_single_acc(note_l->pitch_));
95 key_item_p_->add_support (support_l);
100 local_key_.set (note_l->pitch_);
101 if (!tied_l_arr_.find_l (support_l))
103 local_key_.clear_internal_forceacc (note_l->pitch_);
105 else if (tie_changes)
107 local_key_.set_internal_forceacc (note_l->pitch_);
112 if (key_item_p_ && grace_align_l_)
114 grace_align_l_->add_support (key_item_p_);
121 Local_key_engraver::do_removal_processing ()
123 // TODO: signal accidentals to Local_key_engraver the
127 Local_key_engraver::do_pre_move_processing()
131 for (int i=0; i < support_l_arr_.size(); i++)
132 key_item_p_->add_support (support_l_arr_[i]);
134 typeset_element (key_item_p_);
141 support_l_arr_.clear();
142 forced_l_arr_.clear();
146 Local_key_engraver::acknowledge_element (Score_element_info info)
148 SCM wg= get_property ("weAreGraceContext", 0);
150 bool selfgr = gh_boolean_p (wg) &&gh_scm2bool (wg);
151 bool he_gr = info.elem_l_->get_elt_property ("grace") != SCM_UNDEFINED;
153 Grace_align_item * gai = dynamic_cast<Grace_align_item*> (info.elem_l_);
154 if (he_gr && !selfgr && gai)
156 grace_align_l_ = gai;
158 Note_req * note_l = dynamic_cast <Note_req *> (info.req_l_);
159 Note_head * note_head = dynamic_cast<Note_head *> (info.elem_l_);
166 if (note_l && note_head)
168 mel_l_arr_.push (note_l);
169 support_l_arr_.push (note_head);
171 else if (Tie * tie_l = dynamic_cast<Tie *> (info.elem_l_))
173 tied_l_arr_.push (tie_l->head (RIGHT));
178 Local_key_engraver::do_process_requests()
180 Translator * tr = daddy_grav_l()->get_simple_translator ("Timing_engraver"); // ugh
181 Timing_translator * time_C_ = dynamic_cast<Timing_translator*> (tr);
183 if (time_C_ && !time_C_->measure_position ())
185 SCM n = get_property ("noResetKey",0);
186 bool no_res = to_boolean (n);
187 if (!no_res && key_grav_l_)
188 local_key_= key_grav_l_->key_;
190 else if (key_grav_l_ && key_grav_l_->key_changed_b ())
192 local_key_ = key_grav_l_->key_;
198 ADD_THIS_TRANSLATOR(Local_key_engraver);