Overloads the resize event to auto-resize the rich text label to the
        size of this QPushButton.
        
        :param      event | <QResizeEvent>

def resizeEvent(self, event):
        """
        Overloads the resize event to auto-resize the rich text label to the
        size of this QPushButton.
        
        :param      event | <QResizeEvent>
        """
        super(XPushButton, self).resizeEvent(event)
        
        if self._richTextLabel:
            self._richTextLabel.resize(event.size())