Re: GTK, can GtkNotebook have a single control and all tabs pointing to it?

[Leo Ufimtsev <lufimtse redhat com>]

Thank you for the reply. 

In the mean time time, the way we got it to work was to insert unused 'dummy' containers as tabs, and then 
re-parent the desired control into those tabs upon a selection event. 

So as of swt ~4.6 code like this will work: 
https://bugs.eclipse.org/bugs/attachment.cgi?id=250471 

Thank you 

Leo Ufimtsev | Intern Software Engineer @ Eclipse Team 

----- Original Message -----

From: "Gergely Polonkai" <gergely polonkai eu> 
To: "Leo Ufimtsev" <lufimtse redhat com> 
Cc: "gtk-app" <gtk-app-devel-list gnome org> 
Sent: Monday, February 9, 2015 12:36:18 PM 
Subject: Re: GTK, can GtkNotebook have a single control and all tabs pointing to it? 



Hello, 

I'm afraid this is not possible to do it this way; you will have to create some kind of wrapper widget. I 
would go on with GtkStack, and for the tabs themselves you may take a look into GtkStackSwitcher's source 
code. 

Best, 
Gergely 
On 9 Feb 2015 14:43, "Leo Ufimtsev" < lufimtse redhat com > wrote: 


Hello, 

I'm an SWT developer. We build SWT on top of GTK. 

In swt, some developers like to create a GtkNotebook (TabFolder) with many tabs but all pointing to the same 
control. (sigh, odd, I know...) 

The control is a viewer, and changing tabs changes the content of the viewer. 

However, in gtk I haven't been able to make this work. If I add the same child twice, it gives me warnings 
and errors: 
gtk_notebook_append_page (GTK_NOTEBOOK (notebook), child1, label1); 
gtk_notebook_append_page (GTK_NOTEBOOK (notebook), child1, label2); 

Warning: 
(gtk3_testing:17322): Gtk-WARNING **: Can't set a parent on widget which has a parent 


Theoretically speaking, can a GtkNotebook have tabs that all point to the same control? (and we just listen 
to tab-changing events)? Or is this impossible by principle of widget-hierarchy? 

Thank you 

Leo Ufimtsev | Intern Software Engineer @ Eclipse Team 

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