From: Graham Stokes <graham_stokes@...>
Date: 2006-11-13T19:31:21+09:00
Subject: Re: Why won't my FXRuby widgets update?

Joel VanderWerf wrote:

> I think your diagnosis is right. Your ruby code is never giving Fox a
> chance to update the GUI. You can fix it by explicitly sharing time with
> Fox:
> 
>    def procAll(sender, sel, ptr)
>      @stringVal.value += "This is new text\n"
>      500.times do
>        getApp.runOneEvent
>        sleep 0.01 # or do some fraction of your processing
>      end
>    end
> 
> There's still a little delay, but it's probably acceptable.
> 
> You might want to do the runOneEvent calls in one ruby thread, and do
> your non-GUI processing in another.
> 

Joel, thanks a lot for pointing me in the right direction - this indeed 
turns out to be the problem and event processing in a separate thread is 
easy and elegant. How curious that none of the examples supplied pays 
any attention to this requirement.

> In some cases, you really want "as soon as" semantics, and in those a
> good alternative to FXDataTarget is my FoxTails lib. See
> http://redshift.sourceforge.net/foxtails or search the fxruby-users list
> archive.

I will check this out to see the benefits. Thanks again.

Best Regards,
Graham

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