2 score-grav.cc -- implement Score_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
9 #include "super-elem.hh"
10 #include "scoreline.hh"
12 #include "score-elem.hh"
13 #include "bar.hh" // needed for Bar::static_name
14 #include "score-grav.hh"
18 #include "musical-request.hh"
19 #include "score-column.hh"
20 #include "command-request.hh"
23 Score_engraver::Score_engraver()
25 disallow_break_b_ = false;
34 Score_engraver::prepare (Moment w)
36 set_columns (new Score_column (w), new Score_column (w));
38 disallow_break_b_ = false;
39 post_move_processing();
43 Score_engraver::finish()
46 *mlog << "[" << breaks_i_ << "]" << flush;
53 Score_engraver::do_creation_processing()
55 scoreline_l_ = pscore_p_->super_elem_l_->line_of_score_l_;
56 scoreline_l_->set_bounds(LEFT,get_staff_info().command_pcol_l ());
57 command_column_l_->breakable_b_ = true;
58 Engraver_group_engraver::do_creation_processing();
62 Score_engraver::do_removal_processing()
64 Engraver_group_engraver::do_removal_processing();
65 scoreline_l_->set_bounds(RIGHT,get_staff_info().command_pcol_l ());
66 command_column_l_->breakable_b_ = true;
73 Score_engraver::process()
77 pre_move_processing();
82 Score_engraver::announce_element (Score_elem_info info)
84 announce_info_arr_.push (info);
85 info.origin_grav_l_arr_.push (this);
89 Score_engraver::do_announces()
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
97 while (announce_info_arr_.size())
99 for (int i=0; i < announce_info_arr_.size(); i++)
105 if (announce_info_arr_[i].req_l_)
107 Musical_req *m = announce_info_arr_[i].req_l_->musical();
108 if (m && m->rhythmic())
110 musical_column_l_->add_duration (m->duration());
113 Engraver_group_engraver::do_announces();
119 Score_engraver::typeset_element (Score_elem *elem_p)
121 elem_p_arr_.push(elem_p);
125 Score_engraver::typeset_all()
127 for (int i =0; i < elem_p_arr_.size(); i++)
129 Score_elem * elem_p = elem_p_arr_[i];
130 if (elem_p->spanner())
131 pscore_p_->typeset_unbroken_spanner (elem_p->spanner());
134 Item *item_p = elem_p->item();
135 pscore_p_->typeset_element (item_p);
136 if (!item_p->axis_group_l_a_[X_AXIS]) {
137 if (item_p->breakable_b_)
138 command_column_l_->add_element(item_p);
140 musical_column_l_->add_element(item_p);
143 scoreline_l_->add (elem_p);
149 Score_engraver::do_pre_move_processing()
151 if (!disallow_break_b_)
153 get_staff_info().command_pcol_l ()-> breakable_b_ = true;
156 *mlog << "[" << breaks_i_ << "]" << flush;
158 // this generates all items.
159 Engraver_group_engraver::do_pre_move_processing();
165 Score_engraver::set_columns (Score_column *new_command_l,
166 Score_column *new_musical_l)
168 if (command_column_l_ && command_column_l_->linked_b())
170 pscore_p_->add_column (command_column_l_);
171 scoreline_l_->add (command_column_l_);
175 delete command_column_l_ ;
176 command_column_l_ =0;
180 command_column_l_ = new_command_l;
181 command_column_l_->musical_b_ = false;
183 if (musical_column_l_ && musical_column_l_->linked_b())
185 pscore_p_->add_column (musical_column_l_);
186 scoreline_l_->add (musical_column_l_);
190 delete musical_column_l_;
191 musical_column_l_ = 0;
196 musical_column_l_ = new_musical_l;
197 musical_column_l_->musical_b_ = true;
203 Score_engraver::get_staff_info() const
205 Staff_info inf = Engraver_group_engraver::get_staff_info();
207 inf.command_l_ = command_column_l_;
208 inf.musical_l_ = musical_column_l_;
214 Score_engraver::paper() const
216 return pscore_p_->paper_l_;
221 Score_engraver::get_output_p ()
223 Music_output * o = pscore_p_;
229 Score_engraver::do_try_request (Request*r)
231 bool gotcha = Engraver_group_engraver::do_try_request (r);
232 if (!gotcha && r->command() && r->command ()->disallowbreak ())
233 disallow_break_b_ = true;
237 IMPLEMENT_IS_TYPE_B1(Score_engraver,Engraver_group_engraver);
238 ADD_THIS_ENGRAVER(Score_engraver);