[OT] plugins and QDockWidget

[kitts]

Sorry about annoying any of you with this off-topic post.. ;-)

I was wondering how kdevelop's embedded designer maintained dockwidgets? As 
i know only mainwindows can dock widgets. The only way i see it possible is 
that designer maintains a mainwindow which is embedded into the kdevelop's 
central tabwidget!?

On the otherhand if kdevelop used qt4 dockwidgets for its tools interface 
then would it be possible that when a designer (a plugin?) file tab is 
opened that its own dock widgets merge with the other kdevelop dockwidgets  
and then automatically disappear on tab switch?

I think for that to be possible, kdevelop's mainwindow should be the owner 
of the dockwidget and designer should be informed that it has lost focus. 
It then should hide all its own dockwidgets? Right?

I am not suggesting anything for kdevelop, i am interested in knowing 
architecturally for my own application.
-- 
Cheers!
kitts