2 bar-script-engraver.cc -- implement Bar_script_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "bar-script-engraver.hh"
12 #include "clef-item.hh"
13 #include "g-staff-side.hh"
14 #include "g-text-item.hh"
15 #include "lily-guile.hh"
17 Bar_script_engraver::Bar_script_engraver ()
22 hang_on_clef_b_ = false;
24 = gh_eval_str ("non_postbreak_visibility");
28 Bar_script_engraver::do_creation_processing ()
30 Scalar prop = get_property (type_ + "HangOnClef", 0);
33 hang_on_clef_b_ = true;
38 Bar_script_engraver::do_acknowledge_element (Item *i)
40 Axis other_axis = Axis((axis_ + 1)%2);
41 if (staff_side_p_ && !staff_side_p_->dim_cache_[other_axis].parent_l_)
43 staff_side_p_->dim_cache_[other_axis].parent_l_
44 = &i->dim_cache_[other_axis];
45 staff_side_p_->dim_cache_[axis_].parent_l_
46 = &i->dim_cache_[axis_];
48 staff_side_p_->add_support (i);
49 i->add_dependency (staff_side_p_); // UGH.
55 Bar_script_engraver::cast_to_interesting_item (Score_element *e)
60 i = dynamic_cast<Clef_item*> (e);
64 i = dynamic_cast<Bar*> (e);
70 Bar_script_engraver::acknowledge_element (Score_element_info inf)
72 if (inf.origin_grav_l_arr_.size () == 1)
74 Item *i=cast_to_interesting_item (inf.elem_l_);
78 /* Only put numbers on bars that are at our own level (don't put
79 numbers over the staffs of a GrandStaff, only over the GrandStaff
81 if (inf.origin_grav_l_arr_.size () != 1)
84 do_acknowledge_element (i);
89 Bar_script_engraver::do_pre_move_processing ()
93 typeset_element (text_p_);
99 typeset_element (staff_side_p_);
106 Bar_script_engraver::create_items (Request *rq)
108 if (staff_side_p_ || text_p_)
111 staff_side_p_ = new G_staff_side_item;
112 staff_side_p_->axis_ = axis_;
113 staff_side_p_->breakable_b_ = true; // ugh
116 text_p_ = new G_text_item;
117 text_p_->breakable_b_ = true; // ugh
119 Scalar prop = get_property (type_ + "Direction", 0);
122 staff_side_p_->dir_ = (Direction) (int) prop;
126 staff_side_p_->dir_ = UP;
129 staff_side_p_->set_victim(text_p_);
131 Scalar padding = get_property (type_ + "ScriptPadding", 0);
132 if (padding.length_i() && padding.isnum_b ())
134 staff_side_p_->padding_f_ = Real(padding);
137 staff_side_p_->visibility_lambda_ = visibility_lambda_;
138 text_p_->visibility_lambda_ = visibility_lambda_;
140 announce_element (Score_element_info (text_p_, rq));
141 announce_element (Score_element_info (staff_side_p_, rq));