How can both graphicsView and graphicsItem receive mousemoveEvent?

**olidem** · 17th March 2009, 08:24

Originally Posted by christina123y

but i still puzzled why the view class intercepted the mouse event before the item ?

Because the item "lets them through" ? As long as you call QGraphicsItem::mouseXXXEvent, it will travel through, I think

**christina123y** · 18th March 2009, 01:09

Originally Posted by olidem

Because the item "lets them through" ? As long as you call QGraphicsItem::mouseXXXEvent, it will travel through, I think

Now i counter another problem, the class which inherit from QGraphicsItem can't be moved and seletable.
and i have setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable)
in it's constructor,but it still can move.(i also try to put setFlags of this item in any possible postion, but it still can't be moved)
but i also add a ellipse item in the scene, howerver,the ellipse item can move.

Why? I don't understand why this happen to this item?
Wish anyone's help soonly !Thank you!

**aamer4yu** · 18th March 2009, 04:16

Are you overriding some events of the item you inherited from graphicsitem ?

If yes, are you calling the base class QGraphicsItem methods from there ?

**zgulser** · 3rd April 2009, 12:22

Hi,

I have very similar problem regarding this subject.

I have a QGraphicsView and QGraphicsScene and some QGraphicsItem (as usual). For again to zoom upan a rubberband action I needed to reimplement mouse move event in QGraphicsView. Moreover, I also want to change the color of the item whenever mouse moves on the item. So it seemed I need to reimplement the mouse move event also in the QGraphicsItem. But I doesn't work. I also tried out eventFilter thing.

Can anyone help me?

Thanks in advance.