40     public:

    40     public:

    41         explicit DrawMapScene(QObject *parent = 0);

    41         explicit DrawMapScene(QObject *parent = 0);

    42 

    42 

    43         QByteArray encode();

    43         QByteArray encode();

    44         void decode(QByteArray data);

    44         void decode(QByteArray data);

    45 

    46 

    46     signals:

    47     signals:

    47         void pathChanged();

    48         void pathChanged();

    48 

    49 

    49     public slots:

    50     public slots: