Qt 4.8
qtesteventloop.h
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41 
42 #ifndef QTESTEVENTLOOP_H
43 #define QTESTEVENTLOOP_H
44 
45 #include <QtTest/qtest_global.h>
46 
47 #include <QtCore/qcoreapplication.h>
48 #include <QtCore/qeventloop.h>
49 #include <QtCore/qobject.h>
50 #include <QtCore/qpointer.h>
51 
53 
55 
56 QT_MODULE(Test)
57 
59 {
60  Q_OBJECT
61 
62 public:
63  inline QTestEventLoop(QObject *aParent = 0)
64  : QObject(aParent), inLoop(false), _timeout(false), timerId(-1), loop(0) {}
65  inline void enterLoop(int secs);
66 
67 
68  inline void changeInterval(int secs)
69  { killTimer(timerId); timerId = startTimer(secs * 1000); }
70 
71  inline bool timeout() const
72  { return _timeout; }
73 
74  inline static QTestEventLoop &instance()
75  {
76  static QPointer<QTestEventLoop> testLoop;
77  if (testLoop.isNull())
79  return *static_cast<QTestEventLoop *>(testLoop);
80  }
81 
82 public Q_SLOTS:
83  inline void exitLoop();
84 
85 protected:
86  inline void timerEvent(QTimerEvent *e);
87 
88 private:
89  bool inLoop;
90  bool _timeout;
91  int timerId;
92 
94 };
95 
96 inline void QTestEventLoop::enterLoop(int secs)
97 {
98  Q_ASSERT(!loop);
99 
100  QEventLoop l;
101 
102  inLoop = true;
103  _timeout = false;
104 
105  timerId = startTimer(secs * 1000);
106 
107  loop = &l;
108  l.exec();
109  loop = 0;
110 }
111 
113 {
114  if (timerId != -1)
116  timerId = -1;
117 
118  if (loop)
119  loop->exit();
120 
121  inLoop = false;
122 }
123 
125 {
126  if (e->timerId() != timerId)
127  return;
128  _timeout = true;
129  exitLoop();
130 }
131 
133 
135 
136 #endif
int startTimer(int interval)
Starts a timer and returns a timer identifier, or returns zero if it could not start a timer...
Definition: qobject.cpp:1623
#define Q_TESTLIB_EXPORT
Definition: qtest_global.h:56
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
#define QT_MODULE(x)
Definition: qglobal.h:2783
#define QT_BEGIN_HEADER
Definition: qglobal.h:136
bool isNull() const
Returns true if the referenced object has been destroyed or if there is no referenced object; otherwi...
Definition: qpointer.h:70
#define Q_SLOTS
Definition: qobjectdefs.h:71
#define Q_ASSERT(cond)
Definition: qglobal.h:1823
The QObject class is the base class of all Qt objects.
Definition: qobject.h:111
The QPointer class is a template class that provides guarded pointers to QObject. ...
Definition: qpointer.h:54
static bool inLoop
void changeInterval(int secs)
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
The QEventLoop class provides a means of entering and leaving an event loop.
Definition: qeventloop.h:55
void enterLoop(int secs)
int timerId() const
Returns the unique timer identifier, which is the same identifier as returned from QObject::startTime...
Definition: qcoreevent.h:346
static QTestEventLoop & instance()
#define Q_OBJECT
Definition: qobjectdefs.h:157
bool timeout() const
void timerEvent(QTimerEvent *e)
This event handler can be reimplemented in a subclass to receive timer events for the object...
void exit(int returnCode=0)
Tells the event loop to exit with a return code.
Definition: qeventloop.cpp:288
QEventLoop * loop
The QTimerEvent class contains parameters that describe a timer event.
Definition: qcoreevent.h:341
static QCoreApplication * instance()
Returns a pointer to the application&#39;s QCoreApplication (or QApplication) instance.
QTestEventLoop(QObject *aParent=0)
QFactoryLoader * l
#define class
#define QT_END_HEADER
Definition: qglobal.h:137
int exec(ProcessEventsFlags flags=AllEvents)
Enters the main event loop and waits until exit() is called.
Definition: qeventloop.cpp:181
void killTimer(int id)
Kills the timer with timer identifier, id.
Definition: qobject.cpp:1650