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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 

    52 QT_BEGIN_HEADER

    53 

    54 QT_BEGIN_NAMESPACE

    55 

    56 QT_MODULE(Test)

    57 

    58 class Q_TESTLIB_EXPORT QTestEventLoop : public QObject

    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())

    78             testLoop = new QTestEventLoop(QCoreApplication::instance());

    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 

    93     QEventLoop *loop;

    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 

   112 inline void QTestEventLoop::exitLoop()

   113 {

   114     if (timerId != -1)

   115         killTimer(timerId);

   116     timerId = -1;

   117 

   118     if (loop)

   119         loop->exit();

   120 

   121     inLoop = false;

   122 }

   123 

   124 inline void QTestEventLoop::timerEvent(QTimerEvent *e)

   125 {

   126     if (e->timerId() != timerId)

   127         return;

   128     _timeout = true;

   129     exitLoop();

   130 }

   131 

   132 QT_END_NAMESPACE

   133 

   134 QT_END_HEADER

   135 

   136 #endif