2 score-grav.cc -- implement Score_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 #include "super-element.hh"
10 #include "line-of-score.hh"
13 #include "score-engraver.hh"
15 #include "musical-request.hh"
16 #include "score-column.hh"
17 #include "command-request.hh"
18 #include "paper-def.hh"
21 Score_engraver::Score_engraver()
32 Score_engraver::prepare (Moment w)
34 Global_translator::prepare (w);
35 set_columns (new Score_column (w), new Score_column (w));
38 post_move_processing();
42 Score_engraver::finish()
45 *mlog << "[" << breaks_i_ << "]" << flush;
52 Score_engraver::do_creation_processing()
54 scoreline_l_ = pscore_p_->line_l_;
55 scoreline_l_->set_bounds(LEFT,get_staff_info().command_pcol_l ());
56 command_column_l_->breakable_b_ = true;
57 Engraver_group_engraver::do_creation_processing();
61 Score_engraver::do_removal_processing()
63 Engraver_group_engraver::do_removal_processing();
64 scoreline_l_->set_bounds(RIGHT,get_staff_info().command_pcol_l ());
65 command_column_l_->breakable_b_ = true;
72 Score_engraver::process()
76 pre_move_processing();
81 Score_engraver::announce_element (Score_element_info info)
83 announce_info_arr_.push (info);
84 info.origin_grav_l_arr_.push (this);
88 Score_engraver::do_announces()
90 /* All elements are propagated to the top upon announcement. If
91 something was created during one run of
92 Engraver_group_engraver::do_announces, then
93 announce_info_arr_.size() will be nonzero again
96 while (announce_info_arr_.size())
98 for (int i=0; i < announce_info_arr_.size(); i++)
104 if (announce_info_arr_[i].req_l_)
106 Musical_req *m = announce_info_arr_[i].req_l_->access_Musical_req ();
107 if (m && m->access_Rhythmic_req ())
109 musical_column_l_->add_duration (m->duration());
112 Engraver_group_engraver::do_announces();
118 Score_engraver::typeset_element (Score_element *elem_p)
120 elem_p_arr_.push(elem_p);
124 Score_engraver::typeset_all()
126 for (int i =0; i < elem_p_arr_.size(); i++)
128 Score_element * elem_p = elem_p_arr_[i];
129 if (elem_p->access_Spanner ())
131 Spanner *s = elem_p->access_Spanner ();
132 pscore_p_->typeset_unbroken_spanner (s);
137 do something sensible if spanner not
142 if (!s->spanned_drul_[d])
144 s->set_bounds(d, command_column_l_);
145 ::warning (_f ("Unbound spanner `%s\'", s->name ()));
147 } while (flip(&d) != LEFT);
151 Item *item_p = elem_p->access_Item ();
152 pscore_p_->typeset_element (item_p);
153 if (!item_p->axis_group_l_a_[X_AXIS]) {
154 if (item_p->breakable_b_)
155 command_column_l_->add_element(item_p);
157 musical_column_l_->add_element(item_p);
160 scoreline_l_->add_element (elem_p);
166 Score_engraver::do_pre_move_processing()
168 if (break_penalty_i_ > Break_req::DISALLOW)
170 get_staff_info().command_pcol_l ()-> breakable_b_ = true;
173 *mlog << "[" << breaks_i_ << "]" << flush;
175 // this generates all items.
176 Engraver_group_engraver::do_pre_move_processing();
182 Score_engraver::set_columns (Score_column *new_command_l,
183 Score_column *new_musical_l)
185 if (command_column_l_ && command_column_l_->linked_b())
187 pscore_p_->add_column (command_column_l_);
188 scoreline_l_->add_element (command_column_l_);
192 delete command_column_l_ ;
193 command_column_l_ =0;
197 command_column_l_ = new_command_l;
198 command_column_l_->musical_b_ = false;
200 if (musical_column_l_ && musical_column_l_->linked_b())
202 pscore_p_->add_column (musical_column_l_);
203 scoreline_l_->add_element (musical_column_l_);
207 delete musical_column_l_;
208 musical_column_l_ = 0;
213 musical_column_l_ = new_musical_l;
214 musical_column_l_->musical_b_ = true;
220 Score_engraver::get_staff_info() const
222 Staff_info inf = Engraver_group_engraver::get_staff_info();
224 inf.command_l_ = command_column_l_;
225 inf.musical_l_ = musical_column_l_;
233 Score_engraver::get_output_p ()
235 Music_output * o = pscore_p_;
241 Score_engraver::do_try_request (Request*r)
243 bool gotcha = Engraver_group_engraver::do_try_request (r);
245 if (gotcha || !r->access_Command_req ())
248 Command_req * c = r->access_Command_req ();
249 if (c->access_Break_req ())
251 Break_req* b = (Break_req*)c->access_Break_req ();
252 if (b->penalty_i_ <= Break_req::DISALLOW)
253 break_penalty_i_ = b->penalty_i_;
254 else if (b->penalty_i_ >= Break_req::FORCE)
256 command_column_l_->break_penalty_i_ = b->penalty_i_;
263 IMPLEMENT_IS_TYPE_B1(Score_engraver,Engraver_group_engraver);
264 ADD_THIS_TRANSLATOR(Score_engraver);
267 Score_engraver::do_add_processing ()
269 Translator_group::do_add_processing ();
270 assert (output_def_l_->is_type_b (Paper_def::static_name ()));
271 assert (!daddy_trans_l_);
272 pscore_p_ = new Paper_score;
273 pscore_p_->paper_l_ = (Paper_def*)output_def_l_;