Re: i want to add different visibility to controls on notebook page

[Vinod Joseph <diana vinod gmail com>]

Hi Iago

Could you tell me how to obtain the page_num effectively..

The issue is GTK writes only on gtk_main and your page number is
always the maximum number of pages....

So...only the last page settings are effective on giving the
if ( gtk_notebook_get_n_pages(GTK_NOTEBOOK(notebook)-1)
 { do this controls for the other pages...etc }
else if {
 do controls for LAST PAGE
}

Here the logic for controls is simplified to differentiate only last page...

But, only LAST PAGE controls work...bcoz on gtk_main() call - the
number of pages is the total value and my number is all even
numbers....2/4/6/8 for 4 actual pages..

Thank you for your assistance

Joe


On Mon, 01 Nov 2004 16:20:31 +0100, Iago Rubio <iago rubio hispalinux es> wrote:
> On Mon, 2004-11-01 at 09:58, Vinod Joseph wrote:
> > Hi David
> >
> > My controls are outside the notebook widget..
> >
> > Design as shown in attached text file
> >
> > But i am not able to correctly disable or unrealize widgets for a
> > particular page in notebook....
>
> Use the notebook's "switch-page" signal and gtk_widget_set_sensitive()
> or g_object_set().
>
> // EXAMPLE
>
> typedef struct _TheButtons {
>        GtkWidget* button_next;
>        GtkWidget* button back;
> } TheButtons;
>
> void create_notebook()
> {
>
> TheButtons* buttons = g_malloc0(sizeof(TheButtons));
>
> // create the notebook
> // create the buttons namely back and next in this example
>
> buttons->button_next = back;
> buttons->button_back = next;
>
> g_signal_connect(G_OBJECT(notebook), "switch-page",
>                        G_CALLBACK(notebook_page_switched),
>                        buttons);
>
> g_signal_connect_swapped(G_OBJECT(notebook), "destroy",
>                        g_free,
>                        buttons);
>
> }
>
> void
> notebook_page_switched(GtkNotebook *notebook,
>                       GtkNotebookPage *page,
>                       guint page_num,
>                       gpointer user_data)
> {
>  TheButtons* buttons;
>  buttons = (TheButtons*) user_data;
>  gboolean issensitive;
>
>  if( page_num == 0){
>    g_object_set(G_OBJECT(buttons->button_back),
>      "sensitive", FALSE, NULL);
>  }else{
>    g_object_get(G_OBJECT(buttons->button_back),
>      "sensitive",&issensitive, NULL);
>    if( !issensitive ){
>      g_object_set(G_OBJECT(buttons->button_back),
>        "sensitive", TRUE, NULL);
>    }
>  }
>  if( page_num ==
>    (gtk_notebook_get_num_pages(notebook) - 1) ){
>    g_object_set(G_OBJECT(buttons->button_next),
>      "sensitive", FALSE, NULL);
>
>  }else{
>    g_object_get(G_OBJECT(buttons->button_next),
>      "sensitive",&issensitive, NULL);
>    if( !issensitive ){
>      g_object_set(G_OBJECT(buttons->button_next),
>        "sensitive", TRUE, NULL);
>    }
>  }
> }
>
> It's quick written from memory so it can contain errors.
> --
> Iago Rubio
> _______________________________________________
> gtk-app-devel-list mailing list
> gtk-app-devel-list gnome org
> http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list