Re: [boost] Interest in non-intrusive signal/slot lib?

Subject: Re: [boost] Interest in non-intrusive signal/slot lib?
From: Emil Dotchevski (emildotchevski_at_[hidden])
Date: 2015-05-20 18:59:13

On Wed, May 20, 2015 at 10:40 AM, Emil Dotchevski <emildotchevski_at_[hidden]>
wrote:

> On Tue, May 19, 2015 at 11:35 PM, Gavin Lambert <gavinl_at_[hidden]>
> wrote:
>
>> TBH though in the presented examples I would doubt that signal/event
>> handling is the only concern (in a real application), so you might end up
>> creating those Window objects anyway, in which case the appeal lessens.  So
>> I can't personally think of any cases where I would use this instead of
>> Signals2 or libsigc++ or similar.
>>
>
> An example when the non-intrusiveness is important is when you load up an
> entire hierarchy of UI objects from a file and you want to add custom
> signals to it. Other solutions to this problem are less elegant.
>
> Another useful non-intrusive feature is the meta signals system. It lets
> you manage connections to 3rd party objects automatically. For example it
> can be used to add support for C++ functional objects to any C-style
> callback API.
>

I figured my second point above would be difficult to understand without an
example, so I've added it here:
http://revergestudios.com/boost-synapse/using_Boost_Synapse_meta_signals_to_connect_to_a_C-style_callback_API.html
.

Emil

On Wed, May 20, 2015 at 10:40 AM, Emil Dotchevski <emildotchevski_at_[hidden]>
wrote:

> On Tue, May 19, 2015 at 11:35 PM, Gavin Lambert <gavinl_at_[hidden]>
> wrote:
>
>> TBH though in the presented examples I would doubt that signal/event
>> handling is the only concern (in a real application), so you might end up
>> creating those Window objects anyway, in which case the appeal lessens.  So
>> I can't personally think of any cases where I would use this instead of
>> Signals2 or libsigc++ or similar.
>>
>
> An example when the non-intrusiveness is important is when you load up an
> entire hierarchy of UI objects from a file and you want to add custom
> signals to it. Other solutions to this problem are less elegant.
>
> Another useful non-intrusive feature is the meta signals system. It lets
> you manage connections to 3rd party objects automatically. For example it
> can be used to add support for C++ functional objects to any C-style
> callback API.
>
> Emil
>

-- 
Emil Dotchevski
Reverge Studios, Inc.
http://www.revergestudios.com/reblog/index.php?n=ReCode