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>
9 #include "dimension-cache.hh"
10 #include "line-of-score.hh"
12 #include "score-engraver.hh"
13 #include "paper-score.hh"
14 #include "musical-request.hh"
15 #include "paper-column.hh"
16 #include "command-request.hh"
17 #include "paper-def.hh"
19 Score_engraver::Score_engraver()
29 Score_engraver::prepare (Moment w)
31 Global_translator::prepare (w);
32 set_columns (new Paper_column (w), new Paper_column (w));
34 command_column_l_->set_elt_property ("breakable", SCM_BOOL_T);
35 post_move_processing();
39 Score_engraver::finish()
42 progress_indication ("[" + to_str ( breaks_i_) + "]");
52 Score_engraver::do_creation_processing ()
54 scoreline_l_ = pscore_p_->line_l_;
56 scoreline_l_->set_bound(LEFT, command_column_l_);
58 command_column_l_->set_elt_property ("breakable", SCM_BOOL_T);
60 Engraver_group_engraver::do_creation_processing();
65 Score_engraver::do_removal_processing()
67 Engraver_group_engraver::do_removal_processing();
68 scoreline_l_->set_bound(RIGHT,command_column_l_);
69 command_column_l_->set_elt_property ("breakable", SCM_BOOL_T);
75 if (musical_column_l_->linked_b ())
76 programming_error ("Last column in score should be non-musical");
81 Score_engraver::process()
85 pre_move_processing();
90 Score_engraver::announce_element (Score_element_info info)
92 announce_info_arr_.push (info);
93 pscore_p_->typeset_element (info.elem_l_);
96 /* All elements are propagated to the top upon announcement. If
97 something was created during one run of
98 Engraver_group_engraver::do_announces, then
99 announce_info_arr_.size() will be nonzero again
101 /* junkme? Done by Engraver_group_engraver::do_announces ()?
105 Score_engraver::do_announces()
107 while (announce_info_arr_.size())
108 Engraver_group_engraver::do_announces();
113 Score_engraver::typeset_element (Score_element *elem_p)
115 elem_p_arr_.push (elem_p);
120 Score_engraver::typeset_all()
122 for (int i =0; i < elem_p_arr_.size(); i++)
124 Score_element * elem_p = elem_p_arr_[i];
125 elem_p->add_processing ();
128 if (Spanner *s = dynamic_cast <Spanner *> (elem_p))
131 do something sensible if spanner not
136 if (!s->get_bound (d))
138 s->set_bound(d, command_column_l_);
139 ::warning (_f ("unbound spanner `%s'", classname(s)));
141 } while (flip(&d) != LEFT);
145 if (!elem_p->parent_l (X_AXIS))
147 bool br = to_boolean (elem_p->remove_elt_property ("breakable"));
149 command_column_l_->add_element(elem_p);
151 musical_column_l_->add_element(elem_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 (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_);