Re: [gtkmm] Modifying a TreeRow with a TreeIter

[Michael Babcock <mbabcock la creatureshop henson com>]

Michael Babcock wrote:
> How do modify a TreeRow if I have a TreeIter? TreeIter::operator* 
> returns a const TreeRow reference.

I had a function:

void update_row (Gtk::TreeRow& row);

that I couldn't pass a dereferenced TreeIter to (because it was const).

To answer my own question, you _can_ modify a tree row with a const 
TreeRow. TreeRow::operator[] and TreeRow::set_value are const member 
functions even though they modify the tree row data. So you can and must 
make the TreeRow reference const. I was thinking the TreeRow object 
represented the tree row data, when it is really just another iterator.

--
Michael Babcock
Jim Henson's Creature Shop