Re: GtkTreeModelSort + GtkTreeModelFilter

[Jens Luedicke <jens luedicke gmail com>]

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muppet wrote:

> Well, technically, TreeSortable is an interface that you can  implement,
> but TreeModelSort and TreeModelFilter are actual objects  that act as
> proxy models.  The TreeModelSort or TreeModelFilter is a  real object,
> but doesn't hold any data of its own.
>
> > Actually for the programm i want to code those functionalities  would
> > be prefect. But not GtkTreeModelSort or GtkTreeModelFilter, i  would
> > like to use both.
> > But well, i cannot use both, i can use one or the other i think.
>
>
> Sure you can.  See attached example, modelmodelmodel.pl...  a sorted 
> and filtered list.  That's probably a rather heavyweight way to do  it,
> but it is at least possible.

it doesn't work if you try to use a custom sort compare function.
TreeModelSort passes the underlying TreeModelFilter model to the compare
function. which doesn't provide the get_sort_column_id method.

my $sort_func = sub {
        my ($model,$a,$b) = @_;
        my ($sort_column_id,$order) = $model->get_sort_column_id;
...
}




- --
Jens Luedicke
web: http://perldude.de

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