Re: Bug in Gtk2::ToggleButton->new_from_stock()

[Emmanuele Bassi <ebassi gmail com>]

Hi muppet,

On Fri, 2006-06-02 at 21:05 -0400, muppet wrote:
> On May 28, 2006, at 9:15 AM, Emmanuele Bassi wrote:
>
> > Unfortunately, GObject::constructor has no Perl counterpart: you can
> > control the initialisation of an Glib::Object but you can't control  
> > the
> > creation of the instance itself.  I've had a look at the Glib::Object
> > creation flow, and the changes for supporting a CONSTRUCTOR  
> > function are
> > not trivial (maybe muppet or Torsten have some patch lying around so
> > I'll be shamed into a corner, though ;-)).
>
> No patch, sorry.  The main reason for not binding it back in the day  
> was that subclassing GObjects in perl is already unnatural enough...

Yeah, I thought about that.

The syntax for allowing overriding the constructor would be something
like this:

sub CONSTRUCTOR
{
    my ($class, $params) = @_;

    my $self = $class::SUPER->constructor($class, $params);
    
    # ... do stuff with the newly created instance ...

    return $self;
}

which would *really* be unnatural.

> Although, if it's really the only way to do a particular trick, we  
> can work something up.

That's the only way to control an object with constructor and
constructor-only properties.

Ciao,
 Emmanuele.

-- 
Emmanuele Bassi - <ebassi gmail com>
Log: http://log.emmanuelebassi.net