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akonadi

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kdsignalblocker.cpp
1 /****************************************************************************
2 ** Copyright (C) 2001-2012 Klaralvdalens Datakonsult AB. All rights reserved.
3 **
4 ** This file is part of the KD Tools library.
5 **
6 ** Licensees holding valid commercial KD Tools licenses may use this file in
7 ** accordance with the KD Tools Commercial License Agreement provided with
8 ** the Software.
9 **
10 **
11 ** This file may be distributed and/or modified under the terms of the GNU
12 ** Lesser General Public License version 2 and version 3 as published by the
13 ** Free Software Foundation and appearing in the file LICENSE.LGPL included.
14 **
15 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
17 **
18 ** Contact info@kdab.net if any conditions of this licensing are not
19 ** clear to you.
20 **
21 **********************************************************************/
22 
23 #include "kdsignalblocker.h"
24 
25 #include <QObject>
26 
27 using namespace Akonadi;
28 
44 KDSignalBlocker::KDSignalBlocker( QObject * o )
45  : wasBlocked( o->signalsBlocked() ), object( o )
46 {
47  o->blockSignals( true );
48 }
49 
55 KDSignalBlocker::KDSignalBlocker( QObject & o )
56  : wasBlocked( o.signalsBlocked() ), object( &o )
57 {
58  o.blockSignals( true );
59 }
60 
67 KDSignalBlocker::~KDSignalBlocker()
68 {
69  unblock();
70 }
71 
72 /*
73  Unblocks signals (unless they were blocked before).
74  You can use reblock() to block them again.
75  There is no need to reblock before destruction.
76 
77  \post o->signalsBlocked() is the same as just before this instance has been constructed.
78 */
79 void KDSignalBlocker::unblock()
80 {
81  object->blockSignals( wasBlocked );
82 }
83 
84 /*
85  Unblocks signals (unless they were blocked before)
86  \post o->signalsBlocked() is the same as just before this instance has been constructed.
87 */
88 void KDSignalBlocker::reblock()
89 {
90  object->blockSignals( true );
91 }
92 
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