Is it possible to use a gtk_layout within a gtk_layout?

[Greg Wickham <greg wickham kaust edu sa>]

Is it possible to add a gtk_layout to a gtk_layout?

I’ve tried and it appears that the second layout receives signals (map, show, etc) but nothing is rendered.

FWIW the gtk_layout seems like the best container for what I’m trying to do. No scrolling is required and
widgets can be placed ad-hoc. I’d like to use the second gtk_layout to provide a simple mechanism to
show / hide a collection of widgets (without having to show / hide them individually).

Using gtk 3.14.13 on CentOS7

The sample code below (for me) doesn’t display the ‘Button’.

Any insight appreciated ...

   -Greg.

---

#include    <gtk/gtk.h>
int main( int argc, char *argv[])
{
    GtkWidget *window;
    GtkWidget *layout1;
    GtkWidget *layout2;
    GtkWidget *button;

    gtk_init( &argc, &argv );

    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_window_set_default_size(GTK_WINDOW(window), 1024, 1024);

    layout1 = gtk_layout_new(NULL, NULL);
    gtk_container_add(GTK_CONTAINER (window), layout1);

    layout2 = gtk_layout_new(NULL, NULL);
    gtk_container_add(GTK_CONTAINER ( layout1 ), layout2);

    button = gtk_button_new_with_label("Button");
    gtk_layout_put(GTK_LAYOUT( layout2 ), button, 150, 50);

    g_signal_connect_swapped(G_OBJECT(window), "destroy",
    G_CALLBACK(gtk_main_quit), NULL);

    gtk_widget_show_all( window );

    gtk_main();

    return 0;
}

--

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