Qt-interest Archive, February 2007
QGraphicsItem hover events
Message 1 in thread
Hi,
i have a class that inherits QGraphicsItem that reimplements the
hoverLeaveEvent method. Every instance of this class could have several
children (that also inherit from QGraphicsItem and reimplement
hoverLeaveEvent), that are painted inside the item area.
Everytime the mouse moves over one of these children, the hoverLeaveEvent of
the parent is called, while I don't want this to happen (or I need a way to
ignore it). Is there a way I can do this?
Enrico Ros
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Message 2 in thread
Enrico Ros wrote:
> Hi,
> i have a class that inherits QGraphicsItem that reimplements the
> hoverLeaveEvent method. Every instance of this class could have several
> children (that also inherit from QGraphicsItem and reimplement
> hoverLeaveEvent), that are painted inside the item area.
> Everytime the mouse moves over one of these children, the hoverLeaveEvent of
> the parent is called, while I don't want this to happen (or I need a way to
> ignore it). Is there a way I can do this?
>
Have you tried QGraphicsItem::setAcceptsHoverEvents( bool ) ?
--Dave
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Message 3 in thread
On Thursday 15 February 2007 22:33:51 you wrote:
> Enrico Ros wrote:
> > Hi,
> > i have a class that inherits QGraphicsItem that reimplements the
> > hoverLeaveEvent method. Every instance of this class could have several
> > children (that also inherit from QGraphicsItem and reimplement
> > hoverLeaveEvent), that are painted inside the item area.
> > Everytime the mouse moves over one of these children, the hoverLeaveEvent
> > of the parent is called, while I don't want this to happen (or I need a
> > way to ignore it). Is there a way I can do this?
>
> Have you tried QGraphicsItem::setAcceptsHoverEvents( bool ) ?
The problem is that I'd like a "stacked" hover, not an exclusive one. Whenever
some children (accepting hover events) are contained in parent's area, and I
move the mouse inside that area, I don't want to get 'enter'/'leave' for the
parent, only for children. The leave event should be emitted when leaving the
parent's area.
Is there some way to do this in the GraphicsView system ?
Enrico Ros
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