Few thoughts, ping Bobef/Frank

[Bjoern]

Frank Benoit schrieb:
> Yes i think you are right,
> i was trying to get around that for some time :)
> 
> Can we make use of tango.core.Signal here ?

I think it is doable.

A win specific snippet follows, hopefully good enough as example.

Bobef :
Signals & Slots are a means of broadcasting an event to multiple listeners.
( So I wonder : does it really make sense ? )

snippet :
import tango.core.Signal;

struct MultiDispatch(Key)
{
     alias void delegate() Dg;

     void attach( Key k, Dg dg )
     {
         m_map[k] = dg;
     }

     void opCall( Key k )
     {
         auto dg = k in m_map;
         if( dg !is null )
             (*dg)();
     }
private:
     Dg[Key] m_map;
}

class MyClass
{
     void onClose()
     {

     }

     MultiDispatch!(int) signal;

     this()
     {
         signal.attach( WM_CLOSE, &onClose );
     }
}

...

auto c = new MyClass;
c.signal( WM_CLOSE );

The forum thread at :
http://www.dsource.org/projects/tango/forums/topic/221

Frank :
Bobef's HTMLayout implementation/wrapper is similar to Eclipse forms. 
(More flexible, but unfortunately Win only.)

HTH Bjoern