Re: Gtk2: defaults for widget constructors

[Daniel Lacroix <dlacroix erasme org>]

Le dim 12/01/2003 ā 23:55, Jörn Reder a écrit :
> Hi,
> 
> I'm fairly new to Gtk2 developing. Goran set me on the developer list 
> some time ago, but I wasn't active since that time. That hopefully 
> changes now ;)
> 
> I just began porting a very small app to see, how Gtk2 feels. I quickly
> stumble over missing defaults for Gtk::VBox->new(), which was
> 
>  Gtk::VBox->new (FALSE, 10)
> 
> in the good old Perl Gtk module.
> 
> Perl Gtk simply defines these defaults in the corresponding .xs file. 
> Since the .xs files of Perl Gtk2 are auto-generated through Inline's 
> AUTOWRAP function, this isn't possible anymore (correct me if I'm 
> wrong).
> 
> Now two questions: is it intended, that these defaults are missing in 
> Gtk2 (probably to be closer to the C original - but porting existing Gtk
> App's would be much easier, if we can have them). If not: I'm not yet 
> familar with all details of Perl Gtk2's source structure and build 
> process: what would be the easiest way to achieve that?

If you have default value to set. The easiest way to do it is to rename
*new function into *_new and write a wrapper in perl (Gtk2::VBox::new)
which set the default value and call Gtk2::VBox::_new.

I think, this is the way it is done for other functions in Gtk2-Perl.

> Regards,
> 
> Joern
> 
> P.S.: just committed a small change to Gtk2/_Object.pm: catch execption
> from AUTOLOADER method call and croak it again. Otherwise wrong caller 
> information is printed in the error message.

Daniel