qt5base-lts/examples/widgets/animation/stickman/node.h

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#ifndef NODE_H
#define NODE_H

#include <QGraphicsItem>

class Node: public QGraphicsObject
{
    Q_OBJECT
public:
    explicit Node(const QPointF &pos, QGraphicsItem *parent = 0);
    ~Node();

    QRectF boundingRect() const Q_DECL_OVERRIDE;
    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) Q_DECL_OVERRIDE;

signals:
    void positionChanged();

protected:
    QVariant itemChange(GraphicsItemChange change, const QVariant &value) Q_DECL_OVERRIDE;

    void mousePressEvent(QGraphicsSceneMouseEvent *) Q_DECL_OVERRIDE;
    void mouseMoveEvent(QGraphicsSceneMouseEvent *) Q_DECL_OVERRIDE;
    void mouseReleaseEvent(QGraphicsSceneMouseEvent *) Q_DECL_OVERRIDE;

private:
    bool m_dragging;
};

#endif