Re: [gnome-love] Expanders in GtkTree* from GTK+ 2.0

[jrb redhat com]

Thomas Broyer <tbroyer ltgt net> writes:

> Hi,
> 
> According to Miguel's last mail, it seems gnome-love is really the place
> for my question.
> 
> I'm currently learning the GTK+ 2.0 new API (from gtk+-1.3.5) and
> particularly the GtkTree* part.
> 
> First, I create a GtkTreeStore and populate it with data. Then I create a
> GtkTreeView with that model, and a GtkCellRendererText I use in three
> GtkTreeViewColumn, which ones are appended to the view.
> Well, as shown in the example of the gtk-doc, adding data to the tree.
> 
> Then I show all this stuff.
> 
> Here comes the question/problem: the tree expander arrows are always on the
> first column, is there a way to have them in another column AND follow that
> column when I drag&drop it?
> I can't find any relevant function.
> 
> I found gtk_tree_view_set_expander_column (not documented) which allows to
> specify the *visual* column where to draw the expander arrows, not the
> *logical* column: when a drag&drop a column, the expanders don't follow it.
> (and is this the expected behaviour or is this a bug?)

I'm not sure which makes more sense -- the expander set in a location in
the view, or on a particular column.  I was toying with the idea of
making it column based, but that would make people who want the expander
always left justified have to listen to "columns_changed" and move the
expander.

If you want to change the behavior, you can listen to that signal and
set_expander_column to the correct column.

Thanks,
-Jonathan