[Interest] findChildren() in destroyed() signal slot

[Jason Cipriani]

Thanks. I need an accurate list of children in response to a child's
destroyed signal, so is the best way to do this, then, to have Parent
maintain its own list of Children, rather than using findChildren(), and
use the destroyed(QObject*) version of the signal to explicitly remove the
Child from the Parents list?

J


On Mon, Mar 19, 2012 at 11:52 AM, Thiago Macieira <thiago.macieira at intel.com
> wrote:

> On segunda-feira, 19 de março de 2012 11.34.02, Jason Cipriani wrote:
> > I am new to Qt. I have two QObject-derived classes, Parent and Child.
> > Child's parent is a Parent. When I attach a slot in Parent to Child's
> > destroyed() signal, I see that Parent's findChildren() does not include
> the
> > Child that was destroyed. This is what I want. Calling findChildren() in
> a
> > destroyed() handler, and assuming the child won't be in the list, is
> safe,
> > right?
>
> Don't assume that.
>
> The order in which the signal and the child deletion is run could change
> in a
> different version.
>
> --
> Thiago Macieira - thiago.macieira (AT) intel.com
>  Software Architect - Intel Open Source Technology Center
>     Intel Sweden AB - Registration Number: 556189-6027
>     Knarrarnäsgatan 15, 164 40 Kista, Stockholm, Sweden
>
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