[Qt-interest] Cosmetic QGraphicsItems

[Nadia Pio]

Hello,

I'm trying to find out a solution to my problem but I can't, so I'll
explain it better.

I have to draw a rectangle (custom QGraphicsRectItem) with four resize
handles(custom QGraphicsRectItem) that are children of the rectangle.
The graphicsView that shows this rectangle can zoom in and out.
Now I want the rectangle to scale with the graphicsView and the resize
handles to be drawn always with 4x4 pixel regarless to the
graphicsView scale factor.

I have tryed to set the resize handle flag to
QGraphicsItem::ItemIgnoresTransformations, has suggested, but this
doesn't work, because these handles should change position in the view
as the scale factor changes, and follow the parent rectangle. With
this solution the resize handles are cosmetic but don't follow the
parent rectagle corners.

I hope that someone can help me.
Thank you.

Nadia

2009/1/29 Ian Thomson <Ian.Thomson at iongeo.com>:
> Hi,
>
> Depending on what you need, try checking these features out:
>
> http://doc.trolltech.com/4.4/qpen.html#setCosmetic
>
> QGraphicsItem::ItemIgnoresTransformations
>
> Thanks,
> Ian.
>
> Nadia Pio wrote:
>> Hello,
>>
>> I'd like to draw on my GraphicsView, a cosmetic rectangle, that
>> doesn't scale with the graphicsView. How can I do this?
>> I've tried to set the scale factor = 1 in my QGraphicsItem paint
>> function, and then to restore the matrix, but it seems to not work!
>> Any idea?
>>
>> Cheers,
>> Nadia
>> _______________________________________________
>> Qt-interest mailing list
>> Qt-interest at trolltech.com
>> http://lists.trolltech.com/mailman/listinfo/qt-interest
>
> This email and any files transmitted with it are confidential and are intended solely for the use of the individual or entity to whom they are addressed.  If you are not the original recipient or the person responsible for delivering the email to the intended recipient, be advised that you have received this email in error, and that any use, dissemination, forwarding, printing, or copying of this email is strictly prohibited. If you received this email in error, please immediately notify the sender and delete the original.
>
>
>
> _______________________________________________
> Qt-interest mailing list
> Qt-interest at trolltech.com
> http://lists.trolltech.com/mailman/listinfo/qt-interest
>