Re: GtkCTree vs GtkTree?

[Alexandre Fayolle <Alexandre Fayolle logilab fr>]

On Tue, 31 Oct 2000 learfox furry ao net wrote:

>    Say, what's the differance between the gtk tree widget and the ctree
> widget? I noticed on the GTK+ tutorial that only the tree widget is
> documented.
>
>    The header file for the ctree widget seems quite different but
> unfortunatly I couldn't find any tutorial for the ctree.
>
> Is there a tutorial for the ctree widget or is this another place where
> I would volenteer in (again)? *G*

They do not have much in common actually. The GtkTree widget is said to be
bugged (but I have not encountered them), and each time I've seen people
asking questions about GtkTrees, they've been politely suggested to
consider using GtkCTrees instead.

The main difference is that a GtkTree is a recursive structure, that uses
GtkItems which can hold GtkTrees, etc., whereas a GtkCTree inherits from
GtkCList, and offers a plain view of the tree. It also suffers the CList
limitations, esp. as to which widgets can be used in a cell. 

Basically, you define a GtkCTree as you would with a GtkCList, but specify
which column will hold the tree. It is important to note that cells in
this column will not support some calls in the GtkCList API: for instance,
you cannot call get_text() (use node_get_text() instead).

And most of all, a GtkCTree is not MVC, and this is really a pitty. Let's
wait for Gtk2.0...


Alexandre Fayolle
-- 
http://www.logilab.com 
Narval is the first software agent available as free software (GPL).
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