[PEAK] Trellis-ified wx Dialog

[Grant Baillie]

On 19 Jul, 2007, at 11:55, Phillip J. Eby wrote:

> By the way, another way to do the above would be:
>
>     class EditBridge(trellis.Component):
>         trellis.values(
>             widget = None,
>             cell = None,
>         )
>         trellis.rules(
>             setup = lambda self: self.widget.Bind 
> (wx.EVT_KILL_FOCUS, self.write),
>             read = lambda self: self.widget.SetValue(self.cell),
>         )
>         def write(self, event):
>             self.cell = self.widget.GetValue()

Hmmm ... if I do that, then the read rule gets called with a widget  
of None. Adding an 'if self.widget' causes an infinite loop.

--Grant