Re: How to center vbox inside full screen window

[Christian Smith <Christian Smith Sun COM>]

That did the trick, thanks!

-Christian

Arto Karppinen wrote:
> Christian Smith wrote:
> > Hi All,
> >
> > I have a very simple GTK program (in C) that creates a full screen 
> > window.  Inside the full screen window I am placing a vbox with two 
> > elements inside: and image and a label.
> >
> > For the life of me I cannot figure out how to get the contents of the 
> > vbox to be packed together.  I.e. I want the image + label touching 
> > each other and centered on the screen.  Currently the height of the 
> > vbox seems to fill the height of the screen with the image and label 
> > distributed inside (and not touching).
> >
> > Any help is appreciated!
>
> You need to put you VBox inside GtkAlignment
>
> gtk_alignment_new(gfloat xalign,
>                   gfloat yalign,
>                   gfloat xscale,
>                   gfloat yscale);
>
> Set alignment to center (0,5),
> And disable scaling of vbox (0).
>
> Like this:
>
> GtkWidget *align = gtk_alignment_new(0.5, 0.5, 0, 0);
> gtk_container_add(GTK_CONTAINER(align), vbox);
>
> After which alignment widget will use the "extra" space in the window, 
> and vbox uses only what it needs. The important part to understand is 
> that the entire space of the window must always be allocated to some 
> widget in Gtk. So if you just put a VBox inside the window, it must 
> fill the whole window.