move CurveArrow by mouse

[sta...@gmx.de]

Hello,

I try to figure out how to move the CurveArrow Item by mouse. I have already tried to subclass it by:

class CurveMarker(pg.CurveArrow):

def __init__(self, curve, index=0, pos=None, **opts):

pg.CurveArrow.__init__(self,curve, index=index, pos=pos)

self.setFlags(self.flags() | self.ItemIgnoresTransformations | self.ItemIsSelectable | self.ItemIsMovable)

self.setAcceptHoverEvents(True)

def mouseDragEvent(self, event):

print(event)

event.accept()

def hoverEnterEvent(self, event):

print(event)

event.accept()

def mouseClickEvent(self, event):

print("clicked")

event.accept()

def hoverEvent(self, event):

print("clicked")

event.accept()

If I create an object of  CurveMarker it appears on the plot, but I can't select it by mouse. No one the overridden events work.

Can somebody give me a hint, how to make the arrows movable.

Thank You

Best regards

Stanislav