Text based UI - framework core, example hub&spokes and input related questions

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Hi,

Lets move this to devel list so others can comment too.

> That's fair.  I really don't know how many of those spokes we can
> actually do in text mode given the constraints though.

So the current info I got from David is that we are required to have full featured text mode. We can do spokes which consist of more linear screens though to make up for the lack of screen space.

> >
> > Your examples used the Hub & Spoke model and you need a way of
> > returning back to the Hub when the Spoke is done. We also need
> > linear
> > progression (to move between hubs or inside Spoke screens) and two
> > "dialogs" (showError and showYesNoQuestion as required by
> > UserInterface base class).
> 
> This is true.  My example was just about showing the UI, not about
> how
> to actually code it.  As far as navigation is concerned, we certainly
> want to re-use as much of the existing ui code that's already in
> ui/gui/.

I agree and we should be able to separate the UI agnostic parts to some kind of common/ abstract classes and
then inherit from those for GUI and TUI cases.
 
> I agree that columns are a bad idea.  Particularly when you start
> throwing translated strings into those.

Well not really, this might still work, try the example code I did yesterday (I am attaching it again, since you probably missed it on devel list). I do not plan on adding much more widgets now, but what is there can actually do columns pretty easily and it will work even on dot matrix printer with translations in place :)


> I don't necessarily have something different in mind.  I am
> struggling
> with how to make use of this code with a real spoke.  Right now I'm
> looking at what it takes to re-use much of the code existing in
> ui/gui
> to setup a single text hub and single text spoke and somehow get it
> displayed.  Your code may in fact become handy there, something in
> place
> of Gtk.main().

That is the idea behind App and UIScreen classes. I am reading input using raw_input so no single keypresses at the moment, but that might be easily changed.

There is one more issue coming up, how do handle textual/numeric input? Can we use readline on s390? Or maybe use readline only where it is supported? Does anybody know how does that work on those dumb terminals?


Martin

Attachment: tui.tar
Description: Unix tar archive

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