Re: [boost] GUI library - another one

From: Peter Dimov (pdimov_at_[hidden])
Date: 2004-03-03 12:39:48

Matthias Schabel wrote:
>
>>     w.wait_for( delete_signal() );
>>
>> just introduces a redundant top-level tag class and a corresponding
>> redundant window_base overload.
>
> I would be willing to sacrifice added complexity of implementation to
> have a more intuitive syntax.  Unless I'm reading this wrong, what
>
> wait_for_signal(w->delete_signal)
>
> is trying to say is that w should wait for a generic delete signal -
> that is, delete_signal isn't
> really something that belongs to the window type but is instead an
> abstract directive to a
> window (or button or widget or whatever) to delete itself.

No, w->delete_signal is actually a boost::signal<> object. You can do
boost::signal-like things with it, like connect() a function to it that will
be executed when w is destroyed.

wait_for_signal(sig) just connects a 'wake up' function to sig and blocks.