docs: def resizeEvent( self, event ):
          """
          Resizes the current widget and its parts widget.
          
          :param      event | <QResizeEvent>
          """
          super(XNavigationEdit, self).resizeEvent(event)
          
          w = self.width()
          h = self.height()
          
          self._scrollWidget.resize(w - 4, h - 4)
          
          if ( self._scrollWidget.width() < self._partsWidget.width() ):
             self.scrollParts( self._partsWidget.width() - self._scrollWidget.width() )