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_bounds(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_bounds(RIGHT,command_column_l_);
69 command_column_l_->set_elt_property ("breakable", SCM_BOOL_T);
76 Score_engraver::process()
80 pre_move_processing();
85 Score_engraver::announce_element (Score_element_info info)
87 announce_info_arr_.push (info);
88 pscore_p_->typeset_element (info.elem_l_);
91 /* All elements are propagated to the top upon announcement. If
92 something was created during one run of
93 Engraver_group_engraver::do_announces, then
94 announce_info_arr_.size() will be nonzero again
96 /* junkme? Done by Engraver_group_engraver::do_announces ()?
100 Score_engraver::do_announces()
102 while (announce_info_arr_.size())
103 Engraver_group_engraver::do_announces();
108 Score_engraver::typeset_element (Score_element *elem_p)
110 elem_p_arr_.push (elem_p);
115 Score_engraver::typeset_all()
117 for (int i =0; i < elem_p_arr_.size(); i++)
119 Score_element * elem_p = elem_p_arr_[i];
120 elem_p->add_processing ();
123 if (Spanner *s = dynamic_cast <Spanner *> (elem_p))
126 do something sensible if spanner not
131 if (!s->spanned_drul_[d])
133 s->set_bounds(d, command_column_l_);
134 ::warning (_f ("unbound spanner `%s'", classname(s)));
136 } while (flip(&d) != LEFT);
140 if (!elem_p->parent_l (X_AXIS))
142 bool br = to_boolean (elem_p->remove_elt_property ("breakable"));
144 command_column_l_->add_element(elem_p);
146 musical_column_l_->add_element(elem_p);
149 if (!elem_p->parent_l(Y_AXIS))
150 scoreline_l_->add_element (elem_p);
156 Score_engraver::do_pre_move_processing()
158 if (to_boolean (command_column_l_->get_elt_property ("breakable")))
162 progress_indication ("[" + to_str ( breaks_i_) + "]");
164 // this generates all items.
165 Engraver_group_engraver::do_pre_move_processing();
171 Score_engraver::set_columns (Paper_column *new_command_l,
172 Paper_column *new_musical_l)
174 Paper_column * news[] = {new_command_l, new_musical_l};
175 Paper_column **current[] = {&command_column_l_, &musical_column_l_};
177 for (int i=00; i< 2; i++)
179 if (*current[i] && (*current[i])->linked_b())
181 pscore_p_->add_column ((*current[i]));
182 scoreline_l_->add_column ((*current[i]));
189 We're forgetting about this column. Dump it, and make SCM
193 scm_unprotect_object ((*current[i])->self_scm_);
196 *current[i] = news[i];
201 Score_engraver::get_staff_info() const
203 Staff_info inf = Engraver_group_engraver::get_staff_info();
205 inf.command_l_ = command_column_l_;
206 inf.musical_l_ = musical_column_l_;
212 Score_engraver::get_output_p ()
214 Music_output * o = pscore_p_;
220 Score_engraver::do_try_music (Music*r)
222 bool gotcha = Engraver_group_engraver::do_try_music (r);
226 if (Break_req* b = dynamic_cast<Break_req *> (r))
231 SCM pen = command_column_l_->get_elt_property ("penalty");
232 Real total_penalty = gh_number_p (pen)
236 total_penalty += b->penalty_f_;
237 if (b->penalty_f_ > 10000.0) // ugh. arbitrary.
240 command_column_l_->set_elt_property ("penalty",
241 gh_double2scm (total_penalty));
248 Score_engraver::forbid_breaks ()
253 command_column_l_->remove_elt_property ("breakable");
256 ADD_THIS_TRANSLATOR(Score_engraver);
259 Score_engraver::do_add_processing ()
261 Translator_group::do_add_processing ();
262 assert (dynamic_cast<Paper_def *> (output_def_l_));
263 assert (!daddy_trans_l_);
264 pscore_p_ = new Paper_score;
265 pscore_p_->paper_l_ = dynamic_cast<Paper_def*>(output_def_l_);