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_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_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_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 ();
126 if (Spanner *s = dynamic_cast <Spanner *> (elem_p))
129 do something sensible if spanner not
134 if (!s->spanned_drul_[d])
136 s->set_bounds(d, command_column_l_);
137 ::warning (_f ("unbound spanner `%s'", classname(s)));
139 } while (flip(&d) != LEFT);
143 Item *item_p = dynamic_cast <Item *> (elem_p);
145 if (!item_p->parent_l (X_AXIS))
147 bool br = (item_p->remove_elt_property ("breakable") != SCM_UNDEFINED);
149 command_column_l_->add_element(item_p);
151 musical_column_l_->add_element(item_p);
154 if (!elem_p->parent_l(Y_AXIS))
155 scoreline_l_->add_element (elem_p);
161 Score_engraver::do_pre_move_processing()
163 if (command_column_l_->get_elt_property ("breakable") != SCM_UNDEFINED)
167 *mlog << "[" << breaks_i_ << "]" << flush;
169 // this generates all items.
170 Engraver_group_engraver::do_pre_move_processing();
176 Score_engraver::set_columns (Score_column *new_command_l,
177 Score_column *new_musical_l)
179 if (command_column_l_ && command_column_l_->linked_b())
181 pscore_p_->add_column (command_column_l_);
182 scoreline_l_->add_column (command_column_l_);
185 command_column_l_ =0;
188 command_column_l_ = new_command_l;
190 if (musical_column_l_ && musical_column_l_->linked_b())
192 pscore_p_->add_column (musical_column_l_);
193 scoreline_l_->add_column (musical_column_l_);
196 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))
237 SCM pen = command_column_l_->get_elt_property ("penalty");
238 Real total_penalty = (pen == SCM_UNDEFINED)
240 : gh_scm2double(pen); // ugh. Should typecheck.
242 total_penalty += b->penalty_f_;
243 if (b->penalty_f_ > 10000.0) // ugh. arbitrary.
246 command_column_l_->set_elt_property ("penalty",
247 gh_double2scm (total_penalty));
254 Score_engraver::forbid_breaks ()
259 command_column_l_->remove_elt_property ("breakable");
262 ADD_THIS_TRANSLATOR(Score_engraver);
265 Score_engraver::do_add_processing ()
267 Translator_group::do_add_processing ();
268 assert (dynamic_cast<Paper_def *> (output_def_l_));
269 assert (!daddy_trans_l_);
270 pscore_p_ = new Paper_score;
271 pscore_p_->paper_l_ = dynamic_cast<Paper_def*>(output_def_l_);