2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2007--2009 Han-Wen Nienhuys <hanwen@lilypond.org>
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/>.
22 #include "engraver.hh"
23 #include "international.hh"
25 #include "stream-event.hh"
29 #include "translator.icc"
31 class Spanner_break_forbid_engraver : public Engraver
33 TRANSLATOR_DECLARATIONS (Spanner_break_forbid_engraver);
34 vector<Spanner*> running_spanners_;
36 DECLARE_ACKNOWLEDGER (unbreakable_spanner);
37 DECLARE_END_ACKNOWLEDGER (unbreakable_spanner);
39 void process_music ();
44 Spanner_break_forbid_engraver::process_music ()
46 if (running_spanners_.size ())
48 context ()->get_score_context ()->set_property ("forbidBreak", SCM_BOOL_T);
53 Spanner_break_forbid_engraver::acknowledge_end_unbreakable_spanner (Grob_info gi)
55 vector<Spanner*>::iterator i = find (running_spanners_.begin (), running_spanners_.end (),
57 if (i != running_spanners_.end ())
58 running_spanners_.erase (i);
62 Spanner_break_forbid_engraver::acknowledge_unbreakable_spanner (Grob_info gi)
64 if (!to_boolean (gi.grob ()->get_property ("breakable")))
65 running_spanners_.push_back (gi.spanner ());
68 Spanner_break_forbid_engraver::Spanner_break_forbid_engraver ()
73 ADD_END_ACKNOWLEDGER (Spanner_break_forbid_engraver, unbreakable_spanner);
74 ADD_ACKNOWLEDGER (Spanner_break_forbid_engraver, unbreakable_spanner);
75 ADD_TRANSLATOR (Spanner_break_forbid_engraver,
77 "Forbid breaks in certain spanners.",