QGraphicsItem selection trouble

[zgulser]

I would wish to send a bit but I'm not allowed:/.

Anyway, I'm trying my best to explain it once.

I have many LineItems which are created and form an ellipse inside another item group called SearchAreaItem. Futhermore, each LineItem has a shape() function for more efficiency(I assume you've seen the reason already). Now, what I really want to do is treat this SearchAreaItem as the composite item. Don't want to deal with LineItem's created inside it when the mouse hover over click operations take place. That's why I designed the SeachAreaItem as an item group.

Now I want to ask, what the main usage of setHandlesChildEvents method?

and, although I didn't implement the itemChange() method, I'm now able to drag-drop my SearchAreaItem( the ellipse) by only setting movable flag. Isn't it a bit odd?

[wagmare]

Now I want to ask, what the main usage of setHandlesChildEvents method?

itemGroup->setHandlesChildEvents (false ); will make all the members in the group independent ...

without setting this .. the focus will be on whole .. mouse click is common everywhere to the group members ..

[zgulser]

... what about the shape() function?