[Interest] How to use QStyle::sizeFromContents on a QFrame - missing CT_Frame?

[Tony Rietwyk]

Hi Everybody, 

I have a QFrame derived widget that is styled by a global stylesheet that
sets padding, border width, etc.  When I know the size of the contents, what
do I pass as ContentsType to get the adjusted size to use as
minimumSizeHint?  

Using style()->sizeFromContents( CT_ToolButton, nullptr, contentsSize, this
) almost works, but it returns values that are several pixels too big.  

Regards, 

Tony