Sets the point size for this widget to the inputed size.
        
        :param      pointSize | <int>

def setPointSize(self, pointSize):
        """
        Sets the point size for this widget to the inputed size.
        
        :param      pointSize | <int>
        """
        self.uiSizeSPN.blockSignals(True)
        self.uiSizeSPN.setValue(pointSize)
        self.uiSizeSPN.blockSignals(False)
        
        for i in range(self.uiFontTREE.topLevelItemCount()):
            item = self.uiFontTREE.topLevelItem(i)
            font = item.font(0)
            font.setPointSize(pointSize)
            item.setFont(0, font)