#ifndef VIEWPICTURE_H
#define VIEWPICTURE_H

#include <QObject>
#include <QGraphicsView>
#include <QGraphicsScene>
#include <QWheelEvent>

class ViewPicture : public QGraphicsView
{
    Q_OBJECT

public:
    ViewPicture();
    ~ViewPicture();

public:


protected:
    void wheelEvent(QWheelEvent *event);//ctrl+滚轮的监听事件，用于放大或者缩小

private:
    int scale_m;//倍数
};

#endif // VIEWPICTURE_H