98         void undo();

    98         void undo();

    99         void clear();

    99         void clear();

   100         void setErasing(bool erasing);

   100         void setErasing(bool erasing);

   101         void save(const QString & fileName);

   101         void save(const QString & fileName);

   102         void load(const QString & fileName);

   102         void load(const QString & fileName);

   103 

   104 

   104     protected:

   105     protected:

   105         void changeEvent(QEvent *e);

   106         void changeEvent(QEvent *e);

   106         virtual void resizeEvent(QResizeEvent * event);

   107         virtual void resizeEvent(QResizeEvent * event);

   107         virtual void showEvent(QShowEvent * event);

   108         virtual void showEvent(QShowEvent * event);