2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 1999--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
6 LilyPond is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 LilyPond is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
20 #include "engraver.hh"
21 #include "script-column.hh"
22 #include "side-position-interface.hh"
25 #include "translator.icc"
28 Find potentially colliding scripts, and put them in a
29 Script_column, that will fix the collisions. */
30 class Script_column_engraver : public Engraver
33 vector<Grob *> scripts_;
36 TRANSLATOR_DECLARATIONS (Script_column_engraver);
38 void acknowledge_side_position (Grob_info);
39 void process_acknowledged ();
40 void stop_translation_timestep ();
43 Script_column_engraver::Script_column_engraver (Context *c)
50 Script_column_engraver::stop_translation_timestep ()
54 for (vsize i = 0; i < scripts_.size (); i++)
55 if (Side_position_interface::get_axis (scripts_[i]) == Y_AXIS)
56 Script_column::add_side_positioned (script_column_, scripts_[i]);
64 Script_column_engraver::acknowledge_side_position (Grob_info inf)
66 Item *thing = dynamic_cast<Item *> (inf.grob ());
69 if (!Item::is_non_musical (thing))
70 scripts_.push_back (thing);
75 Script_column_engraver::process_acknowledged ()
77 if (!script_column_ && scripts_.size () > 1)
78 script_column_ = make_item ("ScriptColumn", SCM_EOL);
82 Script_column_engraver::boot ()
84 ADD_ACKNOWLEDGER (Script_column_engraver, side_position);
87 ADD_TRANSLATOR (Script_column_engraver,
89 "Find potentially colliding scripts and put them into a"
90 " @code{ScriptColumn} object; that will fix the collisions.",