Sets the number of editors that the serial widget should have.
        
        :param      count | <int>

def setSectionCount(self, count):
        """
        Sets the number of editors that the serial widget should have.
        
        :param      count | <int>
        """
        # cap the sections at 10
        count = max(1, min(count, 10))
        
        # create additional editors
        while self.layout().count() < count:
            editor = XLineEdit(self)
            editor.setFont(self.font())
            editor.setReadOnly(self.isReadOnly())
            editor.setHint(self.hint())
            editor.setAlignment(QtCore.Qt.AlignCenter)
            editor.installEventFilter(self)
            editor.setSizePolicy(QtGui.QSizePolicy.Expanding,
                                 QtGui.QSizePolicy.Expanding)
            editor.setMaxLength(self.sectionLength())
            editor.returnPressed.connect(self.returnPressed)
            self.layout().addWidget(editor)
        
        # remove unnecessary editors
        while count < self.layout().count():
            widget = self.layout().itemAt(0).widget()
            widget.close()
            widget.setParent(None)
            widget.deleteLater()