[Qt-interest] Layers in Graphics Framework

[AK]

Jason,

I will have to keep these proxies in a scene. So why not duplicate the whole
scene except for the items whose layers mismatch. And keep the Original
scene in sync with the duplicated ones.

On Tue, Apr 26, 2011 at 7:47 PM, Jason H <scorp1us at yahoo.com> wrote:

> You'd need a proxy class that maintains a pointer to the actual item. Your
> layer would be an array of these proxy class instances. Then just use the
> proxy items as normal items.
>
> The proxy's events and signals, would map to the actual, so
> ProxyItem::paint(..) { realItem->paint(..); }
>
>
>
> ------------------------------
> *From:* AK <qtbond007 at gmail.com>
> *To:* qt-interest at qt.nokia.com
> *Sent:* Tue, April 26, 2011 6:31:00 AM
> *Subject:* [Qt-interest] Layers in Graphics Framework
>
> Hello,
>
> I am trying to implement layers support for my app.
>
> - A item can be in one or more layer.
> - A view displays one / more layer
> - If current display view doesn't display a layer assigned to an items,
> that item is not shown. Also its not available to hit-testing methods (
> items( QPoint  etc.).
>
> Off course, I would not like to replicate the scene, keeping them in sync
> could be costly.
>
> What will be the best approach to achieve it???
>
> AK
>
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