Re: Trouble with vbox allocation.

[Angelo Cano <acano systec com>]

On Wed, Mar 28, 2001 at 10:43:39AM +0200, Lecomte Jean François wrote:
> Hi there,
>
> i've one vbox which contains many other small widgets...
>
> But at the end, size requested by all these widgets exceeded the 32767 max
> size of the widget container.
>
> And obviously the (x,y) position of some of these widgets at the end of
> the list step over this limit.
>
> I just want to make these widgets scrollable in a viewport, could you
> tell me how to avoid this trouble. 
>
> Any suggestion ?
> Any examples ?

GtkLayout doesn't have that size limitation:

/* GtkLayout acting as a big GtkVBox */
#include <gtk/gtk.h>

GtkWidget *layout;
gint x = 0;
gint y = 0;

void add_to_layout (GtkWidget *widget)
{
   GtkRequisition req;

   gtk_widget_size_request (widget, &req);
   gtk_layout_put (GTK_LAYOUT (layout), widget, x, 0);
   x += req.width;
   y = MAX (y, req.height);
   gtk_layout_set_size (GTK_LAYOUT (layout), x, y);
}

int main (int argc, char *argv[])
{
    GtkWidget *window, *scrolled_window, *button;
    gint i;
    gchar *label;
    gtk_init (&argc, &argv);

    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    gtk_widget_set_usize (window, 400, 200);

    scrolled_window = gtk_scrolled_window_new (NULL, NULL);
    gtk_container_add (GTK_CONTAINER (window), scrolled_window);

    layout = gtk_layout_new (NULL, NULL);
    gtk_container_add (GTK_CONTAINER (scrolled_window), layout);

    for (i = 0;  i < 1000;  i++) {
        label = g_strdup_printf ("button %d", i);
        button = gtk_button_new_with_label (label);
        g_free (label);
        add_to_layout (button);
    }
    g_print ("width: %d  height: %d\n", x, y);

    gtk_widget_show_all (window);
    gtk_main ();

    return 0;
}

> Thanks
>
> -- 
> -- 
> J-François LECOMTE                      IDEALX S.A.S.
>
>
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