#ifndef GRAPHICSVIEW_H #define GRAPHICSVIEW_H #include class GraphicsView : public QGraphicsView { public: GraphicsView(QWidget *parent = nullptr); private: void mousePressEvent(QMouseEvent * event) override; void mouseMoveEvent(QMouseEvent * event) override; void mouseReleaseEvent(QMouseEvent * event) override; void wheelEvent(QWheelEvent *event) override; }; #endif // GRAPHICSVIEW_H