1 /****************************************************************************
2 **
3 ** This file is part of the LibreCAD project, a 2D CAD program
4 **
5 ** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
6 ** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
7 **
8 **
9 ** This file may be distributed and/or modified under the terms of the
10 ** GNU General Public License version 2 as published by the Free Software
11 ** Foundation and appearing in the file gpl-2.0.txt included in the
12 ** packaging of this file.
13 **
14 ** This program is distributed in the hope that it will be useful,
15 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ** GNU General Public License for more details.
18 **
19 ** You should have received a copy of the GNU General Public License
20 ** along with this program; if not, write to the Free Software
21 ** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 **
23 ** This copyright notice MUST APPEAR in all copies of the script!
24 **
25 **********************************************************************/
26
27 #include "rs_undoable.h"
28 #include "rs_undocycle.h"
29
30 /**
31 * The undoable thing gets activated if it was undone and
32 * deactivated otherwise.
33 */
changeUndoState()34 void RS_Undoable::changeUndoState() {
35 toggleFlag(RS2::FlagUndone);
36 undoStateChanged(isUndone());
37 }
38
39 /**
40 * Undoes or redoes an undoable.
41 */
setUndoState(bool undone)42 void RS_Undoable::setUndoState(bool undone) {
43 if (undone) {
44 setFlag(RS2::FlagUndone);
45 } else {
46 delFlag(RS2::FlagUndone);
47 }
48 undoStateChanged(isUndone());
49 }
50
51 /**
52 * Is this entity in the Undo memory and not active?
53 */
isUndone() const54 bool RS_Undoable::isUndone() const {
55 return getFlag(RS2::FlagUndone);
56 }
57
58