[Qt-interest] A question about MDI

[John McClurkin]

Wm. G. Urquhart wrote:
> Hi List,
> 
> I really just need to check that I won't be wasting my time. I want to 
> write and MDI application that will contain 'documents' that will have 
> no real user interaction on 'internal' feedback. Each of these 
> 'documents' is a mathematical problem being solved and with solution 
> times of up to about 12 minutes I want to keep the UI updated.
> 
> Each of the documents' solver provide information about their progress 
> that I want to display on the document's interface. But am I right in 
> thinking this won't happen due to the way MDI works. I.E. the interface 
> will only get updated when the user (or application) gives it focus. The 
> actual solve process will of course be on a thread within the 'document'.
> 
> I'd appreciate your thoughts on this.

I have a MDI application that updates mulitple views based on user input 
to any of the open views. Views do not have to have focus to be updated. 
  A view class just emits a signal to the parent class when it does 
something requiring updating and the parent class reemits the signal to 
all other MDI views which then redraw themselves.