docs: def positionAt( self, location, fixedX = None, fixedY = None ):
          """
          Calculates the position at the inputed location.
          
          :param      location        <XConnectionLocation>
          :param      fixedX          <float> || None
          :param      fixedY          <float> || None
              
          :return     <QPointF>
          """
          # figure the position information
          rect    = self.sceneRect()
          
          if rect.height() < self.minimumHeight():
              rect.setHeight(self.minimumHeight())
          
          if rect.width() < self.minimumWidth():
              rect.setWidth(self.minimumWidth())
          
          cx      = rect.center().x()
          cy      = rect.center().y()
          x       = cx
          y       = cy
              
          if ( location == XConnectionLocation.Left ):
              x = rect.left()
          
          # define a right-based x
          elif ( location & XConnectionLocation.Right ):
              x = rect.right()
          
          # define a top-based y
          elif ( location & XConnectionLocation.Top ):
              y = rect.top()
          
          # define a bottom-based y
          elif location & XConnectionLocation.Bottom:
              y = rect.bottom()
          
          # use the fixed locations if provided
          if fixedX != None:
              x = rect.x() + fixedX
          if fixedY != None:
              y = rect.y() + fixedY
          
          return QPointF(x, y)