KDE file dialog column resize no longer possible?

[René J. V. Bertin]

OK, bummer, apparently Qt didn't think it a good idea to add a "size 
automatically but allow the user to change afterwards) :-(

There is QHeaderView::sectionSizeFromContents() but using that may give the same 
performance issue as your reverted fix (it's protected so you'd need to use a 
wrapped QHeaderView instance)?

Is there a callback or event where you can query the size that Qt determined, 
set the resizemode to Interactive and then use resizeSection() with the obtained 
size value? I'll look at the sectionResized and geometriesChanged signals later.

R.