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68 lines
2.0 KiB
68 lines
2.0 KiB
15 years ago
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/* This file is part of the KDE project
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*
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* Copyright (C) 2005 Leo Savernik <l.savernik@aon.at>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef SIGNALCATCHER_H
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#define SIGNALCATCHER_H
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#include <qobject.h>
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/**
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* \brief Class for receiving signals.
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*
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* This is a convenience class for receiving signals when it is not worth
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* the effort, or overly complicated to introduce a dedicated slot.
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*
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* Use as follows:
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* \code
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* SignalReceiver sr;
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* sr.connect(some_obj, SIGNAL(someSignal()), SLOT(slot()));
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* <do something with some_obj> ...
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* if (sr.receivedSignal()) { // yes, signal was received
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* }
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* \endcode
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*
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* It is not possible to discriminate between different signals. Hence,
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* use different signal receiver instances for different signals.
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* @autor Leo Savernik
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*/
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class SignalReceiver : public QObject
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{
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Q_OBJECT
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public:
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SignalReceiver(QObject *parent = 0, const char *name = 0);
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virtual ~SignalReceiver();
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/** returns true if any signal has been received */
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bool signalReceived() const { return rcvd; }
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/** returns true if any signal has been received */
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bool operator ()() const { return rcvd; }
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public slots:
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/** connect a signal to this slot to receive it */
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void slot();
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private:
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bool rcvd;
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};
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#endif // SIGNALCATCHER_H
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