2 score-grav.cc -- implement Score_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "dimension-cache.hh"
11 #include "line-of-score.hh"
13 #include "score-engraver.hh"
14 #include "paper-score.hh"
15 #include "musical-request.hh"
16 #include "paper-column.hh"
17 #include "command-request.hh"
18 #include "paper-def.hh"
19 #include "axis-group-interface.hh"
21 Score_engraver::Score_engraver()
31 Score_engraver::prepare (Moment w)
33 Global_translator::prepare (w);
34 set_columns (new Paper_column (w), new Paper_column (w));
36 command_column_l_->set_elt_property ("breakable", SCM_BOOL_T);
37 post_move_processing();
41 Score_engraver::finish()
44 progress_indication ("[" + to_str ( breaks_i_) + "]");
54 Score_engraver::do_creation_processing ()
56 scoreline_l_ = pscore_p_->line_l_;
58 scoreline_l_->set_bound(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_bound(RIGHT,command_column_l_);
71 command_column_l_->set_elt_property ("breakable", SCM_BOOL_T);
77 if (musical_column_l_->linked_b ())
78 programming_error ("Last column in score should be non-musical");
83 Score_engraver::process()
87 pre_move_processing();
92 Score_engraver::announce_element (Score_element_info info)
94 announce_info_arr_.push (info);
95 pscore_p_->typeset_element (info.elem_l_);
98 /* All elements are propagated to the top upon announcement. If
99 something was created during one run of
100 Engraver_group_engraver::do_announces, then
101 announce_info_arr_.size() will be nonzero again
103 /* junkme? Done by Engraver_group_engraver::do_announces ()?
107 Score_engraver::do_announces()
109 while (announce_info_arr_.size())
110 Engraver_group_engraver::do_announces();
115 Score_engraver::typeset_element (Score_element *elem_p)
117 elem_p_arr_.push (elem_p);
122 Score_engraver::typeset_all()
124 for (int i =0; i < elem_p_arr_.size(); i++)
126 Score_element * elem_p = elem_p_arr_[i];
127 elem_p->add_processing ();
130 if (Spanner *s = dynamic_cast <Spanner *> (elem_p))
133 do something sensible if spanner not
138 if (!s->get_bound (d))
140 s->set_bound(d, command_column_l_);
141 ::warning (_f ("unbound spanner `%s'", classname(s)));
143 } while (flip(&d) != LEFT);
147 if (!elem_p->parent_l (X_AXIS))
149 bool br = to_boolean (elem_p->remove_elt_property ("breakable"));
150 Axis_group_interface gi ((br) ? command_column_l_ : musical_column_l_) ;
151 gi.add_element(elem_p);
154 if (!elem_p->parent_l(Y_AXIS))
155 axis_group (scoreline_l_).add_element (elem_p);
161 Score_engraver::do_pre_move_processing()
163 if (to_boolean (command_column_l_->get_elt_property ("breakable")))
167 progress_indication ("[" + to_str ( breaks_i_) + "]");
169 // this generates all items.
170 Engraver_group_engraver::do_pre_move_processing();
176 Score_engraver::set_columns (Paper_column *new_command_l,
177 Paper_column *new_musical_l)
179 Paper_column * news[] = {new_command_l, new_musical_l};
180 Paper_column **current[] = {&command_column_l_, &musical_column_l_};
182 for (int i=00; i< 2; i++)
186 if ((*current[i])->linked_b())
188 pscore_p_->add_column ((*current[i]));
189 scoreline_l_->add_column ((*current[i]));
194 We're forgetting about this column. Dump it, and make SCM
197 FIXME: we should have another way of not putting this
198 column into the spacing problem. Maybe we shouldn't
202 scm_unprotect_object ((*current[i])->self_scm_);
207 *current[i] = news[i];
212 Score_engraver::get_staff_info() const
214 Staff_info inf = Engraver_group_engraver::get_staff_info();
216 inf.command_l_ = command_column_l_;
217 inf.musical_l_ = musical_column_l_;
223 Score_engraver::get_output_p ()
225 Music_output * o = pscore_p_;
231 Score_engraver::do_try_music (Music*r)
233 bool gotcha = Engraver_group_engraver::do_try_music (r);
237 if (Break_req* b = dynamic_cast<Break_req *> (r))
242 SCM pen = command_column_l_->get_elt_property ("penalty");
243 Real total_penalty = gh_number_p (pen)
247 total_penalty += b->penalty_f_;
248 if (b->penalty_f_ > 10000.0) // ugh. arbitrary.
251 command_column_l_->set_elt_property ("penalty",
252 gh_double2scm (total_penalty));
259 Score_engraver::forbid_breaks ()
264 command_column_l_->remove_elt_property ("breakable");
267 ADD_THIS_TRANSLATOR(Score_engraver);
270 Score_engraver::do_add_processing ()
272 Translator_group::do_add_processing ();
273 assert (dynamic_cast<Paper_def *> (output_def_l_));
274 assert (!daddy_trans_l_);
275 pscore_p_ = new Paper_score;
276 pscore_p_->paper_l_ = dynamic_cast<Paper_def*>(output_def_l_);