sliders.py 文件源码

def __init__(self, orientation, title, parent=None):
        super(SlidersGroup, self).__init__(title, parent)

        self.slider = QSlider(orientation)
        self.slider.setFocusPolicy(Qt.StrongFocus)
        self.slider.setTickPosition(QSlider.TicksBothSides)
        self.slider.setTickInterval(10)
        self.slider.setSingleStep(1)

        self.scrollBar = QScrollBar(orientation)
        self.scrollBar.setFocusPolicy(Qt.StrongFocus)

        self.dial = QDial()
        self.dial.setFocusPolicy(Qt.StrongFocus)

        self.slider.valueChanged.connect(self.scrollBar.setValue)
        self.scrollBar.valueChanged.connect(self.dial.setValue)
        self.dial.valueChanged.connect(self.slider.setValue)
        self.dial.valueChanged.connect(self.valueChanged)

        if orientation == Qt.Horizontal:
            direction = QBoxLayout.TopToBottom
        else:
            direction = QBoxLayout.LeftToRight

        slidersLayout = QBoxLayout(direction)
        slidersLayout.addWidget(self.slider)
        slidersLayout.addWidget(self.scrollBar)
        slidersLayout.addWidget(self.dial)
        self.setLayout(slidersLayout)