#ifndef OVENTIMER_H#define OVENTIMER_H#include <QDateTime>#include <QWidget>class QTimer;class OvenTimer : public QWidget{    Q_OBJECTpublic:    OvenTimer(QWidget *parent = 0);    void setDuration(int secs);    int duration() const;    void draw(QPainter *painter);signals:    void timeout();protected:    void paintEvent(QPaintEvent *event);    void mousePressEvent(QMouseEvent *event);private:    QDateTime finishTime;    QTimer *updateTimer;    QTimer *finishTimer;};#endif