GradientEditorItem.py 文件源码

def __init__(self, view, pos, color, movable=True, scale=10, pen='w'):
        self.movable = movable
        self.moving = False
        self.view = weakref.ref(view)
        self.scale = scale
        self.color = color
        self.pen = fn.mkPen(pen)
        self.hoverPen = fn.mkPen(255,255,0)
        self.currentPen = self.pen
        self.pg = QtGui.QPainterPath(QtCore.QPointF(0,0))
        self.pg.lineTo(QtCore.QPointF(-scale/3**0.5, scale))
        self.pg.lineTo(QtCore.QPointF(scale/3**0.5, scale))
        self.pg.closeSubpath()

        QtGui.QGraphicsWidget.__init__(self)
        self.setPos(pos[0], pos[1])
        if self.movable:
            self.setZValue(1)
        else:
            self.setZValue(0)