Re: implementing a collapsable/expandable widget

["Jim George" <jimgeorge gmail com>]

On 9/27/06, Reed Hedges <reed mobilerobots com> wrote:
> Neil Roberts wrote:
> > On Tue, Sep 26, 2006 at 05:33:07PM +0200, Michael 'Mickey' Lauer wrote:
> >
> >> Hi, for one project I need to implement a widget container that can
> >> be collapsed/expanded to show its containment.
> >
> > Have you looked at GtkExpander? That's what it basically does. You can
> > see a demo of it in the gtk-demo program.
>
> GtkExpander does have a little control (an arrow) associated with it that
> normally the user would click to expand the expander. Not sure if you want that.
>
> Generally speaking if you want some container to automatically apear when
> selecting a list item, you can either use the expander and connect the signal
> for list item selected (don't remember what it is) directly to the expander (or
> to a function which calls a function on the expander to expand it), or, if
> you're not using GtkExpander, accept that signal and just
> show/hide/insert/create/whatever your new widget.
>
> Reed

It seems like a job for a GtkTreeView with customized cell renderers.
The stuff that expands out is rendered using the custom renderer,
while the heading  ("Call Joy" in the mockup) is a regular text-based
renderer. The treeview built-in functionality should automatically
support expanding a particular cell when the user clicks the expansion
arrow.