Joel VanderWerf wrote:
>
> I'm updating a FXList from a thread, and I'd like to
> always scroll to the last item. This is what I tried:
>
> require 'fox'
> include Fox
>
> app = FXApp.new("List", "TEST")
> win = FXMainWindow.new(app, "list")
> list = FXList.new(win, 10)
> Thread.new do
> 20.times do |i|
> list << i.to_s
> # sleep 0.1
> list.makeItemVisible(list.numItems-1) # no effect
> sleep 0.1
> end
> end
> win.show
> app.create
> app.run
>
> As it is, the makeItemVisible has no effect, immediate or delayed.
> However, if I uncomment the first sleep, it has an immediate effect, as
> desired.
>
> Does that make sense?
I guess a better question is, what is happening during that first sleep
that I could do manually (without sleeping) to ensure that the
makeItemVisible call has an effect? I've tried recalc, update, flush,
forceRefresh. Overkill, I know, but all in the name of science...
Actually, I've found that Thread.pass has the same effect as sleeping,
so I guess I'll just use that.
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