39     private:

    39     private:

    40         QPushButton * pbUndo;

    40         QPushButton * pbUndo;

    41         QPushButton * pbClear;

    41         QPushButton * pbClear;

    42         QPushButton * pbLoad;

    42         QPushButton * pbLoad;

    43         QPushButton * pbSave;

    43         QPushButton * pbSave;

    44 

    45 

    45     private slots:

    46     private slots:

    46         void load();

    47         void load();

    47         void save();

    48         void save();

    48 };

    49 };