Re: My Custom Playlist

[muppet <scott asofyet org>]

On May 25, 2005, at 7:19 AM, Lorenzo Micheli wrote:

> use Glib::Object::Subclass
>    Glib::Object::,
>    interfaces => [qw/Gtk2::TreeModel Gtk2::TreeSortable/],
> ;
>
> but i've this error: Can't locate object method "_ADD_INTERFACE"  
> via package "Gtk2::TreeSortable" at /usr/lib/perl5/Glib/Object/ 
> Subclass.pm line 209.
>
> what going wrong?

You've reached one of the portions of the API where we haven't  
instrumented the ability to implement a GInterface in perl.

_ADD_INTERFACE is the hook used by the bindings to install vtable  
entries into the class structures of your new perl-derived GObject  
type in order to marshal the vfunc calls for the GInterface up to  
perl code.  This is, unfortunately, not something that is very  
automatic, and i don't think i can whip up a working patch in the  
twenty minutes before i have to leave for work.  (Stay tuned for the  
introspection information in GObject, which is supposed to make all  
of this stuff automatic...)

At any rate, the ability to do this wouldn't be generally available  
until the next stable series, but if you'd like to test it out during  
development, i'd be happy to try to make it work for you.


> Moreover i would remove the elements from the playlist, so i wrote  
> this subroutine:
> ...
> but doing so i can remove only the last element of my playlist,  
> insead i would be able to remove any element from the, therefore  
> where is the mistake? And what if i would remove all the elements?

I don't see an error in your use of the path API on the client side.   
Does your model create a valid path?


--
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