[Qt-qml] Reordering children

[Alex]

Hi Greg,

I was literally talking about the order of the elements in the
'children' array of a given component.  I realize that the 'z'
property is sufficient when the stacking order is of interest, but in
this particular case, I was thinking about reordering Columns and
Rows.  The documentation for Column has limitations for *manually*
changing the 'x' or 'y' properties.

"Note that the positioner assumes that the x and y positions of its
children will not change. If you manually change the x or y properties
in script, bind the x or y properties, use anchors on a child of a
positioner, or have the height of a child depend on the position of a
child, then the positioner may exhibit strange behavior. If you need
to perform any of these actions, consider positioning the items
without the use of a Column."

I can make do with anchors, but seems like some dynamic behavior would
make positioners more useful.

Cheers,
Alex

On Sat, Sep 11, 2010 at 7:58 PM, Gregory Schlomoff
<gregory.schlomoff at gmail.com> wrote:
> It depends of what you mean by order.
> Usually, the order of the children just determine their stacking position
> (ie: the second child will stack over the first, the third will be over the
> second, etc...). In this case, you can change the stacking order with the z
> property.
> In your case, the order of the Rectangles determine how the Column will
> position them, so what you really have  is a position problem, not an order
> problem. And if I recall correctly, the doc for Column states that you can't
> dynamically change the position of the items managed by the column.
> So what would probably work in your case would be to anchor the rectangles
> to each other, and to dynamically change the anchors.
> Cheers,
> greg
> On Sun, Sep 12, 2010 at 9:02 AM, Alex <alexlordax+qt at gmail.com> wrote:
>>
>> Hi all,
>>
>> Is there a way to dynamically change the child order of a particular
>> Item?  For example, suppose I have two Rectangles in a Column, and I
>> sometimes need to reverse their order.
>>
>> Cheers,
>> Alex
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