Re: ScrolledWindow - how to allow scrolling only in one direction?

["Paul Davis" <pjdavis engineering uiowa edu>]

Tom,

I'm a bit busy so I don't have time to write actual code and test, but
the basic idea would be to override Gtk::Container::on_add() in
VScrolledWindow.  When a widget is added, connect to the child's
on_size_request() signal and whenever this event is fired you should
call queue_draw() on the VScrolledWindow. You'll also have to override
on_remove() so you can disconnect the signal handler as well.

If you need me to be more clear or you're having problems, send me
something compilable and I'll take a quick look.

HTH,
Paul Davis

On 4/2/07, Tom Bachmann <e_mc_h2 web de> wrote:
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> Paul Davis schrieb:
> > You can inherit from Gtk::ScrolledWindow and override its
> > on_size_request function.
> >
> > [code]
> >
> > I based this on the example here:
> > http://svn.gnome.org/viewcvs/gtkmm/trunk/examples/book/custom/custom_container/
> >
>
> Thanks very much, the code is indeed working. There's only one point
> where VScrolledWindow does not behave as expected: When the wrapped
> widget changes it's size (e.g. becaus the wrapped wigdet is a vbox and a
> larger button is added), this change is not reflected by the
> VScrolledWindow. I looked through the example (though I didn't build it)
> and I could not find code that would do this. What is to be added to
> make this work as well?
> - --
> - -ness-
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