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>
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);
35 SCM props = get_property (ly_symbol2scm ("basicPaperColumnProperties"));
36 set_columns (new Paper_column (props), new Paper_column (props));
38 SCM when = smobify (new Moment (w));
39 command_column_l_->set_elt_property ("when", when);
40 musical_column_l_->set_elt_property ("when", when);
41 command_column_l_->set_elt_property ("breakable", SCM_BOOL_T);
43 Score_element_info i1(command_column_l_, 0), i2 (musical_column_l_,0);
45 i1.origin_trans_l_ = this;
46 i2.origin_trans_l_ = this;
47 announce_element (i1);
48 announce_element (i2);
50 post_move_processing();
54 Score_engraver::finish()
57 progress_indication ("[" + to_str ( breaks_i_) + "]");
67 Score_engraver::do_creation_processing ()
69 scoreline_l_ = pscore_p_->line_l_;
71 scoreline_l_->set_bound(LEFT, command_column_l_);
73 command_column_l_->set_elt_property ("breakable", SCM_BOOL_T);
75 Engraver_group_engraver::do_creation_processing();
80 Score_engraver::do_removal_processing()
82 Engraver_group_engraver::do_removal_processing();
83 scoreline_l_->set_bound(RIGHT,command_column_l_);
84 command_column_l_->set_elt_property ("breakable", SCM_BOOL_T);
94 Score_engraver::process()
98 pre_move_processing();
103 Score_engraver::announce_element (Score_element_info info)
105 announce_info_arr_.push (info);
106 pscore_p_->line_l_->typeset_element (info.elem_l_);
109 /* All elements are propagated to the top upon announcement. If
110 something was created during one run of
111 Engraver_group_engraver::do_announces, then
112 announce_info_arr_.size() will be nonzero again
114 /* junkme? Done by Engraver_group_engraver::do_announces ()?
118 Score_engraver::do_announces()
120 while (announce_info_arr_.size())
121 Engraver_group_engraver::do_announces();
126 Score_engraver::typeset_element (Score_element *elem_p)
128 elem_p_arr_.push (elem_p);
133 Score_engraver::typeset_all()
135 for (int i =0; i < elem_p_arr_.size(); i++)
137 Score_element * elem_p = elem_p_arr_[i];
138 elem_p->add_processing ();
141 if (Spanner *s = dynamic_cast <Spanner *> (elem_p))
144 do something sensible if spanner not
149 if (!s->get_bound (d))
151 s->set_bound(d, command_column_l_);
152 ::warning (_f ("unbound spanner `%s'", classname(s)));
154 } while (flip(&d) != LEFT);
158 if (!elem_p->parent_l (X_AXIS))
160 bool br = to_boolean (elem_p->get_elt_property ("breakable"));
161 Axis_group_interface::add_element (br ? command_column_l_ : musical_column_l_, elem_p);
165 if (!elem_p->parent_l(Y_AXIS))
166 Axis_group_interface::add_element (scoreline_l_, elem_p);
172 Score_engraver::do_pre_move_processing()
174 if (to_boolean (command_column_l_->get_elt_property ("breakable")))
178 progress_indication ("[" + to_str ( breaks_i_) + "]");
180 // this generates all items.
181 Engraver_group_engraver::do_pre_move_processing();
187 Score_engraver::set_columns (Paper_column *new_command_l,
188 Paper_column *new_musical_l)
190 Paper_column * news[] = {new_command_l, new_musical_l};
191 Paper_column **current[] = {&command_column_l_, &musical_column_l_};
193 for (int i=00; i< 2; i++)
197 scoreline_l_->add_column ((*current[i]));
198 if (!Paper_column::used_b (*current[i]))
200 (*current[i])->suicide ();
205 *current[i] = news[i];
209 set_property ("currentMusicalColumn", new_musical_l->self_scm_);
211 set_property ("currentCommandColumn", new_command_l->self_scm_);
215 Score_engraver::get_output_p ()
217 Music_output * o = pscore_p_;
223 Score_engraver::do_try_music (Music*r)
225 bool gotcha = Engraver_group_engraver::do_try_music (r);
229 if (Break_req* b = dynamic_cast<Break_req *> (r))
234 SCM pen = command_column_l_->get_elt_property ("penalty");
235 Real total_penalty = gh_number_p (pen)
239 total_penalty += b->penalty_f_;
240 if (b->penalty_f_ > 10000.0) // ugh. arbitrary.
243 command_column_l_->set_elt_property ("penalty",
244 gh_double2scm (total_penalty));
251 Score_engraver::forbid_breaks ()
256 command_column_l_->remove_elt_property ("breakable");
259 ADD_THIS_TRANSLATOR(Score_engraver);
262 Score_engraver::do_add_processing ()
264 Translator_group::do_add_processing ();
265 assert (dynamic_cast<Paper_def *> (output_def_l_));
266 assert (!daddy_trans_l_);
267 pscore_p_ = new Paper_score;
268 pscore_p_->paper_l_ = dynamic_cast<Paper_def*>(output_def_l_);
270 SCM props = get_property(ly_symbol2scm ("basicLineOfScoreProperties"));
272 pscore_p_->typeset_line (new Line_of_score (props));