Re: Why use Gtk2::Bin ?

[muppet <scott asofyet org>]

On Dec 17, 2005, at 2:47 PM, zentara wrote:

> I was just wondering, why are Windows and Buttons
> derived from Gtk2::Bin  instead of Gtk2::Box?
>
> Does it make them more efficient?

I don't claim to have insight into the minds of the gtk+ authors, but  
my guess is that it's because Windows and Buttons conceptually just  
have one child.  That child may be a box that has more children, but  
that box is a single child.  It wouldn't make sense to have Window or  
Button descend from Box, because Box is a base that must be  
subclassed with a direction --- how wasteful to require the existence  
of HButton & VButton, or HWindow and VWindow.


--
The door is locked.  I tried to open it, but the lock is harder to  
pick than a broken nose.
  -- Sensei, on 'I, Ninja'