port.py 文件源码

def __init__(self, port, text, hOffset, color, highlightColor):
        super(PortLabel, self).__init__(port)
        self.__port = port
        self.__text = text
        self.__textItem = QtWidgets.QGraphicsTextItem(text, self)
        self._labelColor = color
        self.__highlightColor = highlightColor
        self.__textItem.setDefaultTextColor(self._labelColor)
        self.__textItem.setFont(self.__font)
        self.__textItem.transform().translate(0, self.__font.pointSizeF() * -0.5)
        option = self.__textItem.document().defaultTextOption()
        option.setWrapMode(QtGui.QTextOption.NoWrap)
        self.__textItem.document().setDefaultTextOption(option)
        self.__textItem.adjustSize()

        self.setPreferredSize(self.textSize())
        self.setSizePolicy(QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed))
        self.setWindowFrameMargins(0, 0, 0, 0)
        self.setHOffset(hOffset)

        self.setAcceptHoverEvents(True)
        self.__mousDownPos = None