Question

所以我试图封装一个计时器类，它将处理多线程和计时器的所有细节。

这是我的代码： TimedEvent.h

class TimedEvent : public QObject
{
    Q_OBJECT
public:
    explicit TimedEvent(QObject *parent = 0);
    TimedEvent(const int intervalInMsecs);
    virtual void TimeoutWorkProcedure() = 0;
private slots:
    void TimeoutWorkThread();
protected:

    QTimer *myTimer;
};

TimedEvent.cpp

TimedEvent::TimedEvent(QObject *parent) :
    QObject(parent)
{
}

TimedEvent::TimedEvent(const int intervalInMsecs)
{
    // Create timer
    //
    myTimer = new QTimer(this);

    // Connect the timeout signal to our virtual callback function
    //
    connect(myTimer, SIGNAL(timeout()), this, SLOT(TimeoutWorkThread()));

    myTimer->start(intervalInMsecs);
}

void TimedEvent::TimeoutWorkThread()
{
    QtConcurrent::run(this, &TimedEvent::TimeoutWorkProcedure());
}

想法是TimedEvent将是一个基类，我将能够非常容易地创建派生类。

class MyClass : public TimedEvent
{
    public:
    MyClass( const int timeoutInMsecs );
    TimeoutWorkProcedure(){ do some background stuff };
};

问题是我无法弄清楚要传递给QtConcurrent :: run调用的内容。不确定这是否可行。我可以将QTConcurrent :: run调用移动到派生类，但我预计会有几个派生类。

任何想法都会受到赞赏。

ķ。

Answer 1

此代码：

void TimedEvent::TimeoutWorkThread()
{
    QtConcurrent::run(this, &TimedEvent::TimeoutWorkProcedure);
}

完全没问题，会做你期望的事。它将调用TimeoutWorkProcedure的重写版本。

QtConcurrent ::运行虚拟类成员

1 个答案: