Re: [boost] Re: Re: Java style GUI in C++

From: John Torjo (john.lists_at_[hidden])
Date: 2004-08-25 04:50:56

>I'm not Boost.Signal expert, but I think that is possible.  You
>need to group your slots so that you can impose an order.  Thus,
>the enabler would be in the group that sorts first.  Then, your
>signal should be defined with a Combiner that won't call further
>signals if any returns false.  That means that your enabler will
>always be called first and, if it returns true, the rest of the
>slots will be invoked.
>
>  
>
Fine with me. However, what I want is to halt processing from any event 
handler. So, if I have 10 event handlers for an event, and handler 5 
says stop, I won't call the rest.

While that may or may not be possible with a boost::signal, I would 
prefer a simple (ordered) array of functions to call.

Best,
John

-- 
John Torjo
Freelancer
-- john_at_[hidden]
Contributing editor, C/C++ Users Journal
-- "Win32 GUI Generics" -- generics & GUI do mix, after all
-- http://www.torjo.com/win32gui/
-- v1.3beta released - check out splitter/simple_viewer, 
   a File Explorer/Viewer all in about 200 lines of code!
Professional Logging Solution for FREE
-- http://www.torjo.com/code/logging.zip (logging           - C++)
-- http://www.torjo.com/logview/         (viewing/filtering - Win32)
-- http://www.torjo.com/logbreak/        (debugging         - Win32)