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 "dimension-cache.hh"
10 #include "super-element.hh"
11 #include "line-of-score.hh"
14 #include "score-engraver.hh"
15 #include "paper-score.hh"
16 #include "musical-request.hh"
17 #include "score-column.hh"
18 #include "command-request.hh"
19 #include "paper-def.hh"
21 Score_engraver::Score_engraver()
31 Score_engraver::prepare (Moment w)
33 Global_translator::prepare (w);
34 set_columns (new Score_column (w), new Score_column (w));
36 command_column_l_->set_elt_property (breakable_scm_sym, SCM_BOOL_T);
37 post_move_processing();
41 Score_engraver::finish()
44 *mlog << "[" << breaks_i_ << "]" << flush;
54 Score_engraver::do_creation_processing ()
56 scoreline_l_ = pscore_p_->line_l_;
58 scoreline_l_->set_bounds(LEFT, command_column_l_);
60 command_column_l_->set_elt_property (breakable_scm_sym, SCM_BOOL_T);
62 Engraver_group_engraver::do_creation_processing();
67 Score_engraver::do_removal_processing()
69 Engraver_group_engraver::do_removal_processing();
70 scoreline_l_->set_bounds(RIGHT,command_column_l_);
71 command_column_l_->set_elt_property (breakable_scm_sym, SCM_BOOL_T);
78 Score_engraver::process()
82 pre_move_processing();
87 Score_engraver::announce_element (Score_element_info info)
89 announce_info_arr_.push (info);
90 info.origin_trans_l_arr_.push (this);
91 pscore_p_->typeset_element (info.elem_l_);
94 /* All elements are propagated to the top upon announcement. If
95 something was created during one run of
96 Engraver_group_engraver::do_announces, then
97 announce_info_arr_.size() will be nonzero again
99 /* junkme? Done by Engraver_group_engraver::do_announces ()?
103 Score_engraver::do_announces()
105 while (announce_info_arr_.size())
106 Engraver_group_engraver::do_announces();
111 Score_engraver::typeset_element (Score_element *elem_p)
113 elem_p_arr_.push (elem_p);
118 Score_engraver::typeset_all()
120 for (int i =0; i < elem_p_arr_.size(); i++)
122 Score_element * elem_p = elem_p_arr_[i];
123 elem_p->add_processing ();
127 elem_p wants to be connected to the rest of the
131 if (elem_p->get_elt_property (dangling_scm_sym) != SCM_BOOL_F)
132 scoreline_l_->add_dependency (elem_p);
135 if (Spanner *s = dynamic_cast <Spanner *> (elem_p))
138 do something sensible if spanner not
143 if (!s->spanned_drul_[d])
145 s->set_bounds(d, command_column_l_);
146 ::warning (_f ("unbound spanner `%s'", classname(s)));
148 } while (flip(&d) != LEFT);
152 Item *item_p = dynamic_cast <Item *> (elem_p);
154 if (!item_p->parent_l (X_AXIS))
156 bool br = (item_p->remove_elt_property (breakable_scm_sym) != SCM_BOOL_F);
158 command_column_l_->add_element(item_p);
160 musical_column_l_->add_element(item_p);
163 if (!elem_p->parent_l(Y_AXIS))
164 scoreline_l_->add_element (elem_p);
170 Score_engraver::do_pre_move_processing()
172 if (command_column_l_->get_elt_property (breakable_scm_sym) != SCM_BOOL_F)
176 *mlog << "[" << breaks_i_ << "]" << flush;
178 // this generates all items.
179 Engraver_group_engraver::do_pre_move_processing();
185 Score_engraver::set_columns (Score_column *new_command_l,
186 Score_column *new_musical_l)
188 if (command_column_l_ && command_column_l_->linked_b())
190 pscore_p_->add_column (command_column_l_);
191 scoreline_l_->add_column (command_column_l_);
194 command_column_l_ =0;
197 command_column_l_ = new_command_l;
199 if (musical_column_l_ && musical_column_l_->linked_b())
201 pscore_p_->add_column (musical_column_l_);
202 scoreline_l_->add_column (musical_column_l_);
205 musical_column_l_ = 0;
209 musical_column_l_ = new_musical_l;
215 Score_engraver::get_staff_info() const
217 Staff_info inf = Engraver_group_engraver::get_staff_info();
219 inf.command_l_ = command_column_l_;
220 inf.musical_l_ = musical_column_l_;
227 Score_engraver::get_output_p ()
229 Music_output * o = pscore_p_;
235 Score_engraver::do_try_music (Music*r)
237 bool gotcha = Engraver_group_engraver::do_try_music (r);
241 if (Break_req* b = dynamic_cast<Break_req *> (r))
246 SCM pen = command_column_l_->get_elt_property (penalty_scm_sym);
247 Real total_penalty = (pen == SCM_BOOL_F)
249 : gh_scm2double (SCM_CDR(pen)); // ugh. Should typecheck.
251 total_penalty += b->penalty_f_;
252 if (b->penalty_f_ > 10000.0) // ugh. arbitrary.
255 command_column_l_->set_elt_property (penalty_scm_sym,
256 gh_double2scm (total_penalty));
263 Score_engraver::forbid_breaks ()
265 SCM junk = command_column_l_->remove_elt_property (breakable_scm_sym);
268 ADD_THIS_TRANSLATOR(Score_engraver);
271 Score_engraver::do_add_processing ()
273 Translator_group::do_add_processing ();
274 assert (dynamic_cast<Paper_def *> (output_def_l_));
275 assert (!daddy_trans_l_);
276 pscore_p_ = new Paper_score;
277 pscore_p_->paper_l_ = dynamic_cast<Paper_def*>(output_def_l_);