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
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/*
Copyright (C) 2010 Timothy Pearson <kb9vqf@pearsoncomputing.net>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU 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 TQTIMER_H
#define TQTIMER_H
#include <tqt.h>
#ifdef USE_QT3
// Reimplement the QTimer class
// For Qt3, no changes are needed
#include <qtimer.h>
#endif // USE_QT3
#ifdef USE_QT4
// Reimplement the QTimer class
// For Qt4, some changes are needed
// Linker tricks required to override a class without changing its name
#define QTimer IQTimer
#include <QtCore/qtimer.h>
#undef QTimer
class QTimer : public IQTimer {
// This is taken straight from the Qt header file, with all Q_OBJECT, slot, and similar keywords stripped out.
// Also, all inline functions must be converted to simple declarations.
// This is the last and most obnoxious part of the linker tricks mentioned above
// Essentially, the compiler needs to know that these Q functions exist so that the above I functions
// are not attempted to link. Instead, these empty declarations allow the linker to pull in the complete Q function
// from the Qt toolkit in use. Convoluted, yes, but it should make maintinance MUCH easier as the Qt API changes.
public:
explicit QTimer(QObject *parent = 0);
~QTimer();
inline bool isActive() const;
int timerId() const;
void setInterval(int msec);
int interval() const;
inline void setSingleShot(bool singleShot);
inline bool isSingleShot() const;
static void singleShot(int msec, QObject *receiver, const char *member);
void start(int msec);
void start();
void stop();
void timeout();
// End Qt header file copy
// This is where the new member functions should be placed
// Unlike the above copied block, these members must be defined in the associated .cpp file,
// and they should usually do something. Feel free to include as many Qt files as needed
// in the cpp source file, but DO NOT include them in this header file.
int myNewFunction(int parameter_one);
// Begin Qt header file copy
protected:
void timerEvent(QTimerEvent *);
private:
inline int startTimer(int);
inline void killTimer(int);
};
//inline void QTimer::setSingleShot(bool asingleShot) { single = asingleShot; }
// End Qt header file copy
#endif // USE_QT4
// #ifdef USE_QT4
//
// // Reimplement the QTimer class
// // For Qt4, a few overrides are required
// // Specifically, these functions were altered:
// // OLD: NEW:
// //
//
// #include <qtimer.h>
//
// class Q_EXPORT TQTimer : public QTimer
// {
// Q_OBJECT
// public:
// TQTimer( QObject *parent=0, const char *name=0 );
// ~TQTimer();
//
// // FIXME: Example ONLY
// virtual void oldFunction ();
// };
//
// #endif // USE_QT4
#endif /* TQTIMER_H */
|
