Re: Help with closing a notebook page (GTK2)

["Thomas Bollmeier" <TBollmeier web de>]

> ----UrsprÃngliche Nachricht-----
> Von: "Neil Munro" <neilmunro gmail com>
> Gesendet: 02.07.2011 23:40:02
> An: gtk-app-devel-list gnome org
> Betreff: Help with closing a notebook page (GTK2)
>
> Hi, I have used pygtk before so I am familiar with some of the basic
> concepts of gtk, but this is my first attempt with an actual gtk+ C
> application and I have run into a few issues.
>
> I have a notebook that I wish to have a close button on the page tabs
> that when clicked closes the tabs.
>
> I know that it's a bit off a faf to do as you don't know the page
> prior to the event. So you have to dynamically detect which tab is
> being closed by using a tab child widget.
>
> Now I believe I have done this in code, except it always returns -1
> which then firmly tells me I have done something wrong.
>
> I have attached the code for your reference in the hopes that someone
> shall be able to point out my no doubt simple mistake.
>
> Many thanks in advance,
> Neil Munro

I faced a similar problem when I wrote an editor for the first version ofÂmy gobjectcreator tool some time 
ago. It was
implemented in PyGTK - nevertheless it should work in C as well. The solution may not be elegant but it
worked:
I registered a handler for the "clicked"-signal of the close button within the tab label widget (a GtkHBox).
Within the handler implementation I looped over all pages of the notebook and checked whether the button 
instance
in the page label was identical to the sender instance of the "clicked"-signal. If yes then I had to remove 
the
corresponding page.
You can find the code example here:

https://github.com/ThomasBollmeier/GObjectCreator/blob/master/gobject_creator/ui/documents_view.py

(see lines 342ff. and 378ff. respectively)

Hope that helps.

Regards,
Thomas



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