2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2015 Daniel Eble <dan@faithful.be>
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 "change-sequence-iterator.hh"
23 class Part_combine_part_iterator : public Change_sequence_iterator
26 DECLARE_SCHEME_CALLBACK (constructor, ());
27 Part_combine_part_iterator () {}
30 virtual void change_to (const string &id);
31 Context *find_voice(const string &id);
35 Part_combine_part_iterator::change_to (const string &id)
37 Context *voice = find_voice (id);
39 substitute_outlet (get_outlet (), voice);
42 string s = "can not find Voice context: ";
44 programming_error (s);
49 Part_combine_part_iterator::find_voice (const string &id)
51 // Find a Voice among the siblings of the current outlet. (Well, this might
52 // also find a sibling's descendant, but that should not be a problem.)
53 Context *c = get_outlet ()->get_parent_context ();
55 return find_context_below (c, ly_symbol2scm("Voice"), id);
56 programming_error ("no parent context");
60 IMPLEMENT_CTOR_CALLBACK (Part_combine_part_iterator);