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"
22 Score_engraver::Score_engraver()
33 Score_engraver::prepare (Moment w)
35 Global_translator::prepare (w);
36 set_columns (new Score_column (w), new Score_column (w));
39 post_move_processing();
43 Score_engraver::finish()
46 *mlog << "[" << breaks_i_ << "]" << flush;
53 Score_engraver::do_creation_processing()
55 scoreline_l_ = pscore_p_->line_l_;
56 scoreline_l_->set_bounds(LEFT,get_staff_info().command_pcol_l ());
57 command_column_l_->breakable_b_ = true;
58 Engraver_group_engraver::do_creation_processing();
62 Score_engraver::do_removal_processing()
64 Engraver_group_engraver::do_removal_processing();
65 scoreline_l_->set_bounds(RIGHT,get_staff_info().command_pcol_l ());
66 command_column_l_->breakable_b_ = true;
73 Score_engraver::process()
77 pre_move_processing();
82 Score_engraver::announce_element (Score_element_info info)
84 announce_info_arr_.push (info);
85 info.origin_grav_l_arr_.push (this);
89 Score_engraver::do_announces()
91 /* All elements are propagated to the top upon announcement. If
92 something was created during one run of
93 Engraver_group_engraver::do_announces, then
94 announce_info_arr_.size() will be nonzero again
97 while (announce_info_arr_.size())
99 for (int i=0; i < announce_info_arr_.size(); i++)
105 if (announce_info_arr_[i].req_l_)
107 if (Rhythmic_req *rq = dynamic_cast <Rhythmic_req *> (announce_info_arr_[i].req_l_))
109 musical_column_l_->add_duration (rq->duration());
112 Engraver_group_engraver::do_announces();
118 Score_engraver::typeset_element (Score_element *elem_p)
120 elem_p_arr_.push (elem_p);
125 Score_engraver::typeset_all()
127 for (int i =0; i < elem_p_arr_.size(); i++)
129 Score_element * elem_p = elem_p_arr_[i];
130 if (Spanner *s = dynamic_cast <Spanner *> (elem_p))
132 pscore_p_->typeset_unbroken_spanner (s);
135 do something sensible if spanner not
140 if (!s->spanned_drul_[d])
142 s->set_bounds(d, command_column_l_);
143 ::warning (_f ("Unbound spanner `%s\'", classname(s)));
145 } while (flip(&d) != LEFT);
149 Item *item_p = dynamic_cast <Item *> (elem_p);
150 pscore_p_->typeset_element (item_p);
151 if (!item_p->axis_group_l_a_[X_AXIS]) {
152 if (item_p->breakable_b_)
153 command_column_l_->add_element(item_p);
155 musical_column_l_->add_element(item_p);
158 scoreline_l_->add_element (elem_p);
164 Score_engraver::do_pre_move_processing()
166 if (break_penalty_i_ > Break_req::DISALLOW)
168 get_staff_info().command_pcol_l ()-> breakable_b_ = true;
171 *mlog << "[" << breaks_i_ << "]" << flush;
173 // this generates all items.
174 Engraver_group_engraver::do_pre_move_processing();
180 Score_engraver::set_columns (Score_column *new_command_l,
181 Score_column *new_musical_l)
183 if (command_column_l_ && command_column_l_->linked_b())
185 pscore_p_->add_column (command_column_l_);
186 scoreline_l_->add_element (command_column_l_);
190 delete command_column_l_ ;
191 command_column_l_ =0;
195 command_column_l_ = new_command_l;
196 command_column_l_->musical_b_ = false;
198 if (musical_column_l_ && musical_column_l_->linked_b())
200 pscore_p_->add_column (musical_column_l_);
201 scoreline_l_->add_element (musical_column_l_);
205 delete musical_column_l_;
206 musical_column_l_ = 0;
211 musical_column_l_ = new_musical_l;
212 musical_column_l_->musical_b_ = true;
218 Score_engraver::get_staff_info() const
220 Staff_info inf = Engraver_group_engraver::get_staff_info();
222 inf.command_l_ = command_column_l_;
223 inf.musical_l_ = musical_column_l_;
230 Score_engraver::get_output_p ()
232 Music_output * o = pscore_p_;
238 Score_engraver::do_try_music (Music*r)
240 bool gotcha = Engraver_group_engraver::do_try_music (r);
244 if (Break_req* b = dynamic_cast<Break_req *> (r))
246 if (b->penalty_i_ <= Break_req::DISALLOW)
247 break_penalty_i_ = b->penalty_i_;
248 else if (b->penalty_i_ >= Break_req::FORCE)
250 command_column_l_->break_penalty_i_ = b->penalty_i_;
260 ADD_THIS_TRANSLATOR(Score_engraver);
263 Score_engraver::do_add_processing ()
265 Translator_group::do_add_processing ();
266 assert (dynamic_cast<Paper_def *> (output_def_l_));
267 assert (!daddy_trans_l_);
268 pscore_p_ = new Paper_score;
269 pscore_p_->paper_l_ = (Paper_def*)output_def_l_;