libyui-qt  2.49.2
YQSignalBlocker.h
1 /*
2  Copyright (C) 2000-2012 Novell, Inc
3  This library is free software; you can redistribute it and/or modify
4  it under the terms of the GNU Lesser General Public License as
5  published by the Free Software Foundation; either version 2.1 of the
6  License, or (at your option) version 3.0 of the License. This library
7  is distributed in the hope that it will be useful, but WITHOUT ANY
8  WARRANTY; without even the implied warranty of MERCHANTABILITY or
9  FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
10  License for more details. You should have received a copy of the GNU
11  Lesser General Public License along with this library; if not, write
12  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
13  Floor, Boston, MA 02110-1301 USA
14 */
15 
16 
17 /*-/
18 
19  File: YQSignalBlocker.h
20 
21  Author: Stefan Hundhammer <sh@suse.de>
22 
23 /-*/
24 
25 #ifndef YQSignalBlocker_h
26 #define YQSignalBlocker_h
27 
28 class QObject;
29 
30 /**
31  * Helper class to block Qt signals for QWidgets or QObjects as long as this
32  * object exists.
33  *
34  * This object will restore the old blocked state when it goes out of scope.
35  **/
37 {
38 public:
39 
40  /**
41  * Constructor.
42  *
43  * Qt signals for 'qobject' will be blocked as long as this object exists.
44  * Remember that a QWidget is also a QObject.
45  **/
46  YQSignalBlocker( QObject * qobject );
47 
48  /**
49  * Destructor.
50  *
51  * This will restore the old signal state.
52  **/
54 
55 
56 private:
57 
58  QObject * _qobject;
59  bool _oldBlockedState;
60 };
61 
62 
63 #endif // ifndef YQSignalBlocker_h
Helper class to block Qt signals for QWidgets or QObjects as long as this object exists.
~YQSignalBlocker()
Destructor.
YQSignalBlocker(QObject *qobject)
Constructor.