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 set_columns (new Paper_column (get_property (ly_symbol2scm ("NonMusicalPaperColumn"))),
36 new Paper_column (get_property (ly_symbol2scm ("PaperColumn"))));
38 command_column_l_->set_elt_property ("when", w.make_scm());
39 musical_column_l_->set_elt_property ("when", w.make_scm());
40 command_column_l_->set_elt_property ("breakable", SCM_BOOL_T);
42 Score_element_info i1(command_column_l_, 0), i2 (musical_column_l_,0);
44 i1.origin_trans_l_ = this;
45 i2.origin_trans_l_ = this;
46 announce_element (i1);
47 announce_element (i2);
49 post_move_processing();
53 Score_engraver::finish()
56 progress_indication ("[" + to_str ( breaks_i_) + "]");
66 Score_engraver::do_creation_processing ()
68 scoreline_l_ = pscore_p_->line_l_;
70 scoreline_l_->set_bound(LEFT, command_column_l_);
72 command_column_l_->set_elt_property ("breakable", SCM_BOOL_T);
74 Engraver_group_engraver::do_creation_processing();
79 Score_engraver::do_removal_processing()
81 Engraver_group_engraver::do_removal_processing();
82 scoreline_l_->set_bound(RIGHT,command_column_l_);
83 command_column_l_->set_elt_property ("breakable", SCM_BOOL_T);
91 Score_engraver::process()
95 pre_move_processing();
100 Score_engraver::announce_element (Score_element_info info)
102 announce_info_arr_.push (info);
103 pscore_p_->line_l_->typeset_element (info.elem_l_);
106 /* All elements are propagated to the top upon announcement. If
107 something was created during one run of
108 Engraver_group_engraver::do_announces, then
109 announce_info_arr_.size() will be nonzero again
111 /* junkme? Done by Engraver_group_engraver::do_announces ()?
115 Score_engraver::do_announces()
117 while (announce_info_arr_.size())
118 Engraver_group_engraver::do_announces();
123 Score_engraver::typeset_element (Score_element *elem_p)
125 elem_p_arr_.push (elem_p);
130 Score_engraver::typeset_all()
132 for (int i =0; i < elem_p_arr_.size(); i++)
134 Score_element * elem_p = elem_p_arr_[i];
136 if (Spanner *s = dynamic_cast <Spanner *> (elem_p))
139 do something sensible if spanner not
144 if (!s->get_bound (d))
146 s->set_bound(d, command_column_l_);
147 ::warning (_f ("unbound spanner `%s'", s->name().ch_C()));
149 } while (flip(&d) != LEFT);
153 if (!elem_p->parent_l (X_AXIS))
155 bool br = to_boolean (elem_p->get_elt_property ("breakable"));
156 Axis_group_interface::add_element (br ? command_column_l_ : musical_column_l_, elem_p);
160 if (!elem_p->parent_l(Y_AXIS))
161 Axis_group_interface::add_element (scoreline_l_, elem_p);
167 Score_engraver::do_pre_move_processing()
169 // this generates all items.
170 Engraver_group_engraver::do_pre_move_processing();
173 if (to_boolean (command_column_l_->get_elt_property ("breakable")))
177 progress_indication ("[" + to_str ( breaks_i_) + "]");
182 Score_engraver::set_columns (Paper_column *new_command_l,
183 Paper_column *new_musical_l)
185 Paper_column * news[] = {new_command_l, new_musical_l};
186 Paper_column **current[] = {&command_column_l_, &musical_column_l_};
188 for (int i=00; i< 2; i++)
192 scoreline_l_->add_column ((*current[i]));
195 TODO: delay this decision.
197 if (!Paper_column::used_b (*current[i]))
199 (*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 SCM rpen = b->get_mus_property ("penalty");
240 if (gh_number_p (rpen))
241 total_penalty += gh_scm2double (rpen);
243 if (total_penalty > 10000.0) // ugh. arbitrary.
246 command_column_l_->set_elt_property ("penalty",
247 gh_double2scm (total_penalty));
254 Score_engraver::forbid_breaks ()
259 command_column_l_->remove_elt_property ("breakable");
262 ADD_THIS_TRANSLATOR(Score_engraver);
265 Score_engraver::do_add_processing ()
267 Translator_group::do_add_processing ();
268 assert (dynamic_cast<Paper_def *> (output_def_l_));
269 assert (!daddy_trans_l_);
270 pscore_p_ = new Paper_score;
271 pscore_p_->paper_l_ = dynamic_cast<Paper_def*>(output_def_l_);
273 SCM props = get_property (ly_symbol2scm ("LineOfScore"));
275 pscore_p_->typeset_line (new Line_of_score (props));