Re: dwgui now passes test_shake.py

Robin Becker <[email protected]>:
[snip]
> >It should be handled by push/pull magic, unless that's been
> >changed. If the front end pushes a geometry to the backend
> >before the native widget exists, the backend should just
> >ignore it. The frontend proxy still has the proper values
> >in its state, so when the widget is created the wrapper
> >does "self.proxy.push()" to push everything, and the widget
> >gets the right geometry.
> >
> >That worked on mswgui last time I looked.
> >
> >Cheers,
> >
> >-- Joe
> Yes I think I understand that the proxy already knows the values, but
> mswgui only has enterMainLoop do self.proxy.push()

Yes, that's what tkgui does too, although I don't quite understand why
it's necessary if push is called in internalProd (which is where it
*should* be called...)

> I had thought that this should be done in the backend widget factory,
> but mswgui doesn't set self.widget there,

No, the widget factory only returns a widget.

> it returns the widget to the
> create method. So after inspection of Wrappers.AbstractWrapper.create 
> 
>         if application().isRunning():
>             if not self.widget:
>                 self.widget = self.widgetFactory(*args, **kwds)
>                 self.widgetSetUp()
> 
> 
> it seems that this should be done in widgetSetup, but that causes
> recursion via setContainer. 

No, widgetSetUp is for setting native event handlers and the like.

> It seems that an unconditional push isn't right. At the very least
> container needs to be removed from the list so what seems to work is
> 
>                 self.proxy.push(blocked=['container'])

Actually, I added the blocked parameter to deal with this in
setContainer itself -- see the setContainer method of ComponentWrapper
in tkgui. (tkgui is the back-end I was working on while implementing
these things in the front-end, so I think the usage there is
semi-representative of my intentions, even though I'm sure things may
not be 100% consistent/logical yet ;)

-- 
Magnus Lie Hetland        Practical Python          The Anygui Project
http://hetland.org        http://ppython.com        http://anygui.org


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