2 script-column-engraver.cc -- implement Script_column_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1999--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "engraver.hh"
11 #include "script-column.hh"
13 #include "side-position-interface.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
21 Link_array<Item> scripts_;
24 TRANSLATOR_DECLARATIONS (Script_column_engraver);
26 virtual void acknowledge_grob (Grob_info);
27 virtual void process_acknowledged_grobs ();
28 virtual void stop_translation_timestep ();
32 Script_column_engraver::Script_column_engraver ()
38 Script_column_engraver::stop_translation_timestep ()
45 Script_column_engraver::acknowledge_grob (Grob_info inf)
47 Item *thing = dynamic_cast<Item*> (inf.grob_);
48 if (thing && Side_position_interface::has_interface (inf.grob_)) // ugh FIXME
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_grobs ()
61 if (!scol_ && scripts_.size () > 1)
63 scol_ = make_item ("ScriptColumn", SCM_EOL);
69 for (int i=0; i < scripts_.size (); i++)
70 Script_column::add_staff_sided (scol_, scripts_[i]);
76 ENTER_DESCRIPTION (Script_column_engraver,
78 /* creats*/ "ScriptColumn",
80 /* acks */ "side-position-interface",