2 score-grav.cc -- implement Score_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--1999 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,command_column_l_);
57 command_column_l_->set_elt_property (breakable_scm_sym, SCM_BOOL_T);
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,command_column_l_);
66 command_column_l_->set_elt_property (breakable_scm_sym, SCM_BOOL_T);
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);
87 if (Spanner *s = dynamic_cast <Spanner *> (info.elem_l_))
88 pscore_p_->typeset_unbroken_spanner (s);
89 else if (Item *i = dynamic_cast<Item*> (info.elem_l_))
90 pscore_p_->typeset_element (i);
93 /* All elements are propagated to the top upon announcement. If
94 something was created during one run of
95 Engraver_group_engraver::do_announces, then
96 announce_info_arr_.size() will be nonzero again
99 Score_engraver::do_announces()
101 while (announce_info_arr_.size())
102 Engraver_group_engraver::do_announces();
107 Score_engraver::typeset_element (Score_element *elem_p)
109 elem_p_arr_.push (elem_p);
114 Score_engraver::typeset_all()
116 for (int i =0; i < elem_p_arr_.size(); i++)
118 Score_element * elem_p = elem_p_arr_[i];
119 elem_p->add_processing ();
120 if (Spanner *s = dynamic_cast <Spanner *> (elem_p))
123 do something sensible if spanner not
128 if (!s->spanned_drul_[d])
130 s->set_bounds(d, command_column_l_);
131 ::warning (_f ("Unbound spanner `%s\'", classname(s)));
133 } while (flip(&d) != LEFT);
137 Item *item_p = dynamic_cast <Item *> (elem_p);
139 if (!item_p->parent_l (X_AXIS))
141 bool br = (item_p->remove_elt_property (breakable_scm_sym) != SCM_BOOL_F);
143 command_column_l_->add_element(item_p);
145 musical_column_l_->add_element(item_p);
148 if (!elem_p->dim_cache_[Y_AXIS].parent_l_)
149 scoreline_l_->add_element (elem_p);
155 Score_engraver::do_pre_move_processing()
157 if (break_penalty_i_ > Break_req::DISALLOW)
159 command_column_l_->set_elt_property (breakable_scm_sym, SCM_BOOL_T);
162 *mlog << "[" << breaks_i_ << "]" << flush;
164 // this generates all items.
165 Engraver_group_engraver::do_pre_move_processing();
171 Score_engraver::set_columns (Score_column *new_command_l,
172 Score_column *new_musical_l)
174 if (command_column_l_ && command_column_l_->linked_b())
176 pscore_p_->add_column (command_column_l_);
177 scoreline_l_->add_column (command_column_l_);
181 delete command_column_l_ ;
182 command_column_l_ =0;
185 command_column_l_ = new_command_l;
187 if (musical_column_l_ && musical_column_l_->linked_b())
189 pscore_p_->add_column (musical_column_l_);
190 scoreline_l_->add_column (musical_column_l_);
194 delete musical_column_l_;
195 musical_column_l_ = 0;
200 musical_column_l_ = new_musical_l;
206 Score_engraver::get_staff_info() const
208 Staff_info inf = Engraver_group_engraver::get_staff_info();
210 inf.command_l_ = command_column_l_;
211 inf.musical_l_ = musical_column_l_;
218 Score_engraver::get_output_p ()
220 Music_output * o = pscore_p_;
226 Score_engraver::do_try_music (Music*r)
228 bool gotcha = Engraver_group_engraver::do_try_music (r);
232 if (Break_req* b = dynamic_cast<Break_req *> (r))
234 if (b->penalty_i_ <= Break_req::DISALLOW)
235 break_penalty_i_ = b->penalty_i_;
236 else if (b->penalty_i_ >= Break_req::FORCE)
238 command_column_l_->break_penalty_i_ = b->penalty_i_;
248 ADD_THIS_TRANSLATOR(Score_engraver);
251 Score_engraver::do_add_processing ()
253 Translator_group::do_add_processing ();
254 assert (dynamic_cast<Paper_def *> (output_def_l_));
255 assert (!daddy_trans_l_);
256 pscore_p_ = new Paper_score;
257 pscore_p_->paper_l_ = dynamic_cast<Paper_def*>(output_def_l_);