1/*
2* Copyright (c) 2018 (https://github.com/phase1geo/Minder)
3*
4* This program is free software; you can redistribute it and/or
5* modify it under the terms of the GNU General Public
6* License as published by the Free Software Foundation; either
7* version 2 of the License, or (at your option) any later version.
8*
9* This program is distributed in the hope that it will be useful,
10* but WITHOUT ANY WARRANTY; without even the implied warranty of
11* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12* General Public License for more details.
13*
14* You should have received a copy of the GNU General Public
15* License along with this program; if not, write to the
16* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17* Boston, MA 02110-1301 USA
18*
19* Authored by: Trevor Williams <phase1geo@gmail.com>
20*/
21
22public class UndoNodeLayout : UndoItem {
23
24  private string _old_layout;
25  private string _new_layout;
26  private Node?  _root;
27
28  /* Default constructor */
29  public UndoNodeLayout( Layout old_layout, Layout new_layout, Node? root_node ) {
30    base( _( "change layout" ) );
31    _old_layout = old_layout.name;
32    _new_layout = new_layout.name;
33    _root       = root_node;
34  }
35
36  /* Performs an undo operation for this data */
37  public override void undo( DrawArea da ) {
38    da.set_layout( _old_layout, _root, false );
39    da.loaded();
40  }
41
42  /* Performs a redo operation */
43  public override void redo( DrawArea da ) {
44    da.set_layout( _new_layout, _root, false );
45    da.loaded();
46  }
47
48}
49