Re: Using a TreeStore with a ComboBox

[Jef Driesen <jefdriesen hotmail com>]

Milosz Derezynski wrote:
> Well, if it's really *just* that:
>
> On 6/23/07, Jef Driesen <jefdriesen hotmail com 
> <mailto:jefdriesen hotmail com>> wrote:
>
>     After refilter, the combobox contains no items anymore, just like when I
>     populate the model before using set_visible_func. This is what I
>     expected, because in my model all toplevel nodes have children. Of
>     course this is not the solution I need.
>
>
> and the grander scheme isn't something bigger, then you can just alter 
> the function to:
>
> bool
> Example::on_model_visible (const Gtk:TreeModel::const_iterator& iter)
> {
>   return (iter != store->children().begin && iter->children().empty());
> }

This doesn't make any difference. This change only affects the very 
first node, which also has children in my example model, and thus 
doesn't change anything.

I think a TreeModelFilter is not the solution for my problem, because it 
 can only hide nodes from the main model. What I need is the 
possibility to prevent certain nodes from being selected in the 
combobox. That is a change in the presentation of the model, not the 
model itself (e.g. something similar to the set_select_func from the 
treemodel).