Returns the hotspot at the inputed point.
        
        :param      point | <QPoint>
        
        :return     <XNodeHotspot> || None

def hotspotAt(self, point):
        """
        Returns the hotspot at the inputed point.
        
        :param      point | <QPoint>
        
        :return     <XNodeHotspot> || None
        """
        for hotspot in self._hotspots:
            rect = hotspot.rect()
            if rect.contains(point):
                return hotspot
        return None