I'm looking to create an app who's front end would be 3 windows that fill the main window. These 3 can be dragged arround inside mainwindow, and can be dragged out to become floating windows but those inside mainwindow must allways fill all the space in it.
That all sounds just like 3 dockwidgets, but I havent been able to find a way to give them the attributes to do that? There is allways a space somewhere between them, that they do not autofill. I'm thinking some sort of layout as well but...

How would i do that?

thanks