2 score-engraver.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);
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_->line_l_->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->get_elt_property ("breakable"));
148 Axis_group_interface gi ((br) ? command_column_l_ : musical_column_l_) ;
149 gi.add_element(elem_p);
152 if (!elem_p->parent_l(Y_AXIS))
153 Axis_group_interface (scoreline_l_).add_element (elem_p);
159 Score_engraver::do_pre_move_processing()
161 if (to_boolean (command_column_l_->get_elt_property ("breakable")))
165 progress_indication ("[" + to_str ( breaks_i_) + "]");
167 // this generates all items.
168 Engraver_group_engraver::do_pre_move_processing();
174 Score_engraver::set_columns (Paper_column *new_command_l,
175 Paper_column *new_musical_l)
177 Paper_column * news[] = {new_command_l, new_musical_l};
178 Paper_column **current[] = {&command_column_l_, &musical_column_l_};
180 for (int i=00; i< 2; i++)
184 scoreline_l_->add_column ((*current[i]));
185 if (!(*current[i])->used_b())
188 We're forgetting about this column. Dump it, and make SCM
191 FIXME: we should have another way of not putting this
192 column into the spacing problem. Maybe we shouldn't
196 (*current[i])->suicide ();
201 *current[i] = news[i];
205 set_property ("currentMusicalColumn", new_musical_l->self_scm_);
207 set_property ("currentCommandColumn", new_command_l->self_scm_);
211 Score_engraver::get_output_p ()
213 Music_output * o = pscore_p_;
219 Score_engraver::do_try_music (Music*r)
221 bool gotcha = Engraver_group_engraver::do_try_music (r);
225 if (Break_req* b = dynamic_cast<Break_req *> (r))
230 SCM pen = command_column_l_->get_elt_property ("penalty");
231 Real total_penalty = gh_number_p (pen)
235 total_penalty += b->penalty_f_;
236 if (b->penalty_f_ > 10000.0) // ugh. arbitrary.
239 command_column_l_->set_elt_property ("penalty",
240 gh_double2scm (total_penalty));
247 Score_engraver::forbid_breaks ()
252 command_column_l_->remove_elt_property ("breakable");
255 ADD_THIS_TRANSLATOR(Score_engraver);
258 Score_engraver::do_add_processing ()
260 Translator_group::do_add_processing ();
261 assert (dynamic_cast<Paper_def *> (output_def_l_));
262 assert (!daddy_trans_l_);
263 pscore_p_ = new Paper_score;
264 pscore_p_->paper_l_ = dynamic_cast<Paper_def*>(output_def_l_);