[Development] MouseArea: updating hover state when the area moves

Josh Faust jfaust at suitabletech.com
Wed Aug 21 17:31:28 CEST 2013

On Tue, Aug 20, 2013 at 12:44 AM, Nils Jeisecke <njeisecke at saltation.de>wrote:

> On Tue, Aug 20, 2013 at 6:15 AM, Josh Faust <jfaust at suitabletech.com>
> wrote:
> >I'm curious what the reasoning behind this is. Is it just a performance
> optimization?
> I think so. Currently scene items don't get a notification if their
> absolute positioning changes while the relative position to the parent
> does not.
> See http://qt-project.org/forums/viewthread/10013/ for an older
> discussion.
> > I ask as it makes a number of things not work properly when:
> >  * The window resizes (e.g. via keyboard)
> >  * A MouseArea (such as a button) moves out from under the mouse
> * MouseOver highlights don't disappear. This is very annoying in
> ListViews when using the mouse wheel.

That's too bad. It mostly causes minor graphical artifacts, but once you
start to notice its effects it's everywhere.

QtQuick devs: is this being looked into at all? If I can find a solution
that has minimal performance impact would it be considered?

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