TaskTimer.h

#ifndef TASKTIMER_H
#define TASKTIMER_H

#include <QTImer>
#include <QString>

class TaskB : public QTimer
{
    Q_OBJECT
    
public:
    TaskB(QObject *parent = 0) : QTimer(parent)
    {
        connect(this, SIGNAL(timeout()), this, SLOT(doThing()));
    }

    void initialize(int start, int end)
    {
        _start = start;
        _end = end;
        _current = 0;
    }
    
signals:
    void msg(QString msg);
    void finished();
    
private:
    int _start;
    int _end;
    int _current;
    
private slots:
    void doThing()
    {
        _current++;
        if (_current >= _end)
        {
            stop();
            emit finished();
            return;
        }
        QString value;
        value.sprintf("B%d", _current);
        emit msg(value);
    }
};

#endif