Resource for building custom models

2008-06-26 Thread Jeff Hallock 
I have a custom TreeView in which I want to implement both a filter and sorting 
functionality. Unfortunately Gtk2::TreeStore does not implement 
Gtk2::TreeModelFilter. Currently, I get around this by overriding the following 
routine in my custom TreeView.

sub set_model
{
my ($self, $model) = @_;

$self-{model} = $model;
$self-{filter_model} = Gtk2::TreeModelFilter-new($model);
$self-{filter_model}-set_visible_func(\_visible_func, $self);
$self-{sort_model} = Gtk2::TreeModelSort-new($self-{filter_model});
$self-Gtk2::TreeView::set_model($self-{sort_model});
}

I would like to create a custom model so I don't need to use this hack. I have 
looked around for information on this - but it is sparse - and that I do find 
is not all that informative. Does anyone know of a resource that I can use to 
learn how to do this?
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Re: Resource for building custom models

2008-06-26 Thread Torsten Schoenfeld 
Jeff Hallock wrote:
 I have a custom TreeView in which I want to implement both a filter and 
 sorting functionality. Unfortunately Gtk2::TreeStore does not implement 
 Gtk2::TreeModelFilter.

Gtk2::TreeModelFilter is not an interface that objects can implement.
Gtk2::TreeModelFilter is itself a Gtk2::TreeModel with the sole purpose of
wrapping another model for the purpose of filtering.  Similarly for
Gtk2::TreeModelSort.

 Currently, I get around this by overriding the following routine in my
 custom TreeView.
 
 sub set_model { ... }

I think that's exactly how Gtk2::TreeModelFilter and Gtk2::TreeModelSort are
supposed to be used.

 I would like to create a custom model so I don't need to use this hack. I 
 have looked around for information on this - but it is sparse - and that I 
 do find is not all that informative. Does anyone know of a resource that I 
 can use to learn how to do this?

For implementing custom tree models, see `perldoc Gtk2::TreeModel' and
http://scentric.net/tutorial/sec-custom-models.html.

-- 
Bye,
-Torsten
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Re: delay in widget-sensitive

2008-06-26 Thread Sergei Steshenko 

 there's a
 long-standing bug  
 that causes the visual update not to happen until you move
 out and  
 come back in.
 http://bugzilla.gnome.org/show_bug.cgi?id=56070
 


Opened by Manuel Clos   (reporter, points: 14) 
 2001-06-11 18:43 UTC
.

OMG.


After celebrating the 10 years birthday of GNOME, will we have to celebrate
the 10 years birthday of this bug ? ;-)
,


25 duplicates.
,


This trivial approach for solving the problem was rejected since
gtk_widget_get_pointer() causes an additional X server roundtrip.

So agreed: The patch isn't perfect. It is a hack, but it solves the problem.
Well, and this is were the social aspect of the problem kicks in: Rejecting a
working solution 'cause of its uglyness, without providing a better solution
within years, clearly is a social problem.

It's the social aspect, not the technical one, that qualifies this bug as
BLOCKER - IMHO.


--Sergei.


  
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