Overloads the eventFilter to look for click events on the line edit.
        
        :param      object | <QObject>
                    event  | <QEvent>

def eventFilter( self, object, event ):
        """
        Overloads the eventFilter to look for click events on the line edit.
        
        :param      object | <QObject>
                    event  | <QEvent>
        """
        if ( object == self._filepathEdit and \
             self._filepathEdit.isReadOnly() and \
             event.type() == event.MouseButtonPress and \
             event.button() == Qt.LeftButton ):
            self.pickFilepath()
            
        return False