2 script-column-engraver.cc -- implement Script_column_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1999--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "script-column.hh"
11 #include "side-position-interface.hh"
13 #include "translator.icc"
17 Find potentially colliding scripts, and put them in a
18 Script_column, that will fix the collisions. */
19 class Script_column_engraver : public Engraver
22 Link_array<Item> scripts_;
25 TRANSLATOR_DECLARATIONS (Script_column_engraver);
27 DECLARE_ACKNOWLEDGER(side_position);
28 PRECOMPUTED_VIRTUAL void process_acknowledged ();
29 PRECOMPUTED_VIRTUAL void stop_translation_timestep ();
32 Script_column_engraver::Script_column_engraver ()
38 Script_column_engraver::stop_translation_timestep ()
45 Script_column_engraver::acknowledge_side_position (Grob_info inf)
47 Item *thing = dynamic_cast<Item *> (inf.grob ());
50 if (!Item::is_breakable (thing)
51 && Side_position_interface::get_axis (inf.grob ()) == Y_AXIS)
53 scripts_.push (thing);
59 Script_column_engraver::process_acknowledged ()
61 if (!scol_ && scripts_.size () > 1)
63 scol_ = make_item ("ScriptColumn", SCM_EOL);
68 for (int i = 0; i < scripts_.size (); i++)
69 Script_column::add_staff_sided (scol_, scripts_[i]);
73 ADD_ACKNOWLEDGER(Script_column_engraver, side_position);
74 ADD_TRANSLATOR (Script_column_engraver,
76 /* creats*/ "ScriptColumn",