1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
/* This file is part of the KDE project
*
* Copyright (C) 2005 Leo Savernik <l.savernik@aon.at>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef SIGNALCATCHER_H
#define SIGNALCATCHER_H
#include <tqobject.h>
/**
* \brief Class for receiving signals.
*
* This is a convenience class for receiving signals when it is not worth
* the effort, or overly complicated to introduce a dedicated slot.
*
* Use as follows:
* \code
* SignalReceiver sr;
* sr.connect(some_obj, TQ_SIGNAL(someSignal()), TQ_SLOT(slot()));
* <do something with some_obj> ...
* if (sr.receivedSignal()) { // yes, signal was received
* }
* \endcode
*
* It is not possible to discriminate between different signals. Hence,
* use different signal receiver instances for different signals.
* @autor Leo Savernik
*/
class SignalReceiver : public TQObject
{
TQ_OBJECT
public:
SignalReceiver(TQObject *parent = 0, const char *name = 0);
virtual ~SignalReceiver();
/** returns true if any signal has been received */
bool signalReceived() const { return rcvd; }
/** returns true if any signal has been received */
bool operator ()() const { return rcvd; }
public slots:
/** connect a signal to this slot to receive it */
void slot();
private:
bool rcvd;
};
#endif // SIGNALCATCHER_H
|
