2 g-script-column-engraver.cc -- implement Script_column_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "engraver.hh"
11 #include "script-column.hh"
12 #include "side-position-interface.hh"
13 #include "dimension-cache.hh"
16 Find potentially colliding scripts, and put them in a
17 Script_column, that will fix the collisions. */
18 class Script_column_engraver : public Engraver
20 Script_column *scol_p_;
21 Link_array<Item> script_l_arr_;
24 Script_column_engraver ();
25 VIRTUAL_COPY_CONS(Translator);
27 virtual void acknowledge_element (Score_element_info);
28 virtual void process_acknowledged ();
29 virtual void do_pre_move_processing ();
30 virtual void do_post_move_processing ();
34 Script_column_engraver::Script_column_engraver()
40 Script_column_engraver::do_pre_move_processing ()
44 typeset_element (scol_p_);
50 Script_column_engraver::do_post_move_processing ()
52 script_l_arr_.clear ();
57 Script_column_engraver::acknowledge_element( Score_element_info inf)
59 if (side_position (inf.elem_l_).has_interface_b ())
61 Item *thing = dynamic_cast<Item*> (inf.elem_l_);
63 && !thing->breakable_b ()
64 && side_position (inf.elem_l_).get_axis () == Y_AXIS)
66 script_l_arr_.push (thing);
72 Script_column_engraver::process_acknowledged ()
74 if (!scol_p_ && script_l_arr_.size () > 1)
76 scol_p_ = new Script_column;
77 announce_element (Score_element_info (scol_p_, 0));
82 for (int i=0; i < script_l_arr_.size (); i++)
83 scol_p_->add_staff_sided (script_l_arr_[i]);
84 script_l_arr_.clear ();
87 ADD_THIS_TRANSLATOR(Script_column_engraver);