Re: Are multiple mainwindows possible?

On 01/09/2009 9:13 PM, Michael Carman wrote:
> Having created a fork of Tkx to play with, I'm starting to experiment
> with duplicating some of the functionality that Perl/Tk has in Tk::mega.
> The first item on my list is support for class initialization. The
> Tk::mega documentation says that
>
>      ClassInit is called once for each MainWindow just before the
>      first widget instance of a class is created in the widget tree
>      of MainWindow.
>
> As Perl/Tk supports multiple mainwindows, ClassInit could be called more
> than once.
>
> Does Tkx (or perhaps it would be Tcl.pm) support multiple mainwindows?
> This doesn't complain, but even though $x and $y have different
> addresses they refer to the same Tk widget.

I think it has already been clarified, but what you likely really want 
is multiple toplevels, not multiple interpreters.  You can do some fancy 
stuff with the multiple interps (and I have in tkcon and the Tcl/Tk 
browser plugin), but that's rarely something end user programmers would 
expect to use.

Instead of new interps, just create new toplevels (Tkx::toplevel(...)), 
as many as you want.  More complex interfaces can have a dozen on the 
screen at once (though I'd encourage against from a UX pov).

As for why Tkx behaves the way it does - this is because it is 
simplified to say "you really only want one interp" and gives you the 
main windows for that one interp.  I wouldn't change this without more 
convincing for special cases.

Jeff