[Interest] How to get bounding box of a rotated QML Item ?

Gian Maxera gmaxera at gmail.com
Thu Jan 7 16:32:58 CET 2016


It really strange that few people found this problem.
Even layouts and ListView (& co) does not take into account the proper bounding-box.
So, it means you cannot put into a ListView rotated items :-(
Is it possible that no Qt developer notice that for years ?

Ciao,
Gianluca.


> On 7 Jan 2016, at 13:32, Elvis Stansvik <elvstone at gmail.com> wrote:
> 
> 2016-01-07 12:37 GMT+01:00 Gian Maxera <gmaxera at gmail.com>:
>> Hello,
>> I have an item that contain a rotated Rectangle. I need to calculate the height and the width of the bounding box of the Rectangle respect to the parent Item. How can I do that ?
>> 
>> Item {
>>        width: widthOfBoundingBox
>>        height: heightOfBoundingBox
>>        Rectangle {
>>                width: 100
>>                height: 100
>>                rotation: 25
>>        }
>> }
> 
> I would say childrenRect ... if it wasn't for this bug:
> 
>  https://bugreports.qt.io/browse/QTBUG-38953
> 
> So I'm not sure actually :( Strange that there's been no reaction to
> that bug in over a year.
> 
> Elvis
> 
>> 
>> Thanks,
>> Gianluca.
>> 
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>> Interest at qt-project.org
>> http://lists.qt-project.org/mailman/listinfo/interest




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