[Qt-interest] Layout resizable by dragging

[Francio]

Hello!

I want to create a vertical or horizontal layout with lets say two Test 
Edits.

But I want to have a stripe between the Edits which user can drag to 
increase size of one edit decreasing size of other one.

Is this some kind of property of QVBoxLayout?
Maybe I should use Dock Widgets somehow to achieve that?

I tried googling for resizable layouts with no success.

thanks in advance