Re: How center a small button horizontally like in this picture....

[Deborah Swayne <dfs research att com>]

I want to do something similar, and I've tried to follow the
suggestions put forth in this thread, but to no avail.

Objective:  To vertically center a label in an hbox in a vbox (or
in any other arrangement of widgets that would produce this pattern)

It's easy to control the horizontal position of the label, shifting
it right or center, but I don't seem to have any control over its
vertical position; it always appears at the top of its container.
I've tried using a vbox in the hbox, and using
gtk_misc_set_alignment; I've tried using an alignment widget in the
hbox or in the vbox in the hbox; I've tried a table.  I'm stumped,
and yet it seems so easy.

vbox:
  -------------------------
 |   |   |                 |
 |   |   |  --------       |<-- hbox containing two togglebuttons and a label
 | X | Y | |Label A |      |
 |   |   |  --------       |
 |   |   |                 |
  -------------------------
 |   |   |                 |
 |   |   |  --------       |<-- ditto
 | X | Y | |Label B |      |
 |   |   |  --------       |
 |   |   |                 |
  -------------------------
 |   |   |                 |
 |   |   |  --------       |<-- ditto
 | X | Y | |Label C |      |
 |   |   |  --------       |
 |   |   |                 |
  -------------------------

I'll be grateful for any help anyone can offer.
Debby

-------

Here's the code I've been playing with to test it out; it's
borrowed from the scrolled window example in gtk1.2.


/* varpanelA.c */
#include <gtk/gtk.h>

#define false 0
#define true 1

void destroy( GtkWidget *widget, gpointer   data )
{
    gtk_main_quit();
}

int main( int   argc, char *argv[] )
{
    static GtkWidget *window;
    GtkWidget *swin, *hbox, *vbox, *vb;
    GtkWidget *button, *align, *label;
    gchar *buffer;
    int j;
    
    gtk_init (&argc, &argv);
    
    /* Create a dialog window */
    window = gtk_dialog_new ();
    gtk_signal_connect (GTK_OBJECT (window), "destroy",
      (GtkSignalFunc) destroy, NULL);
    gtk_window_set_title (GTK_WINDOW (window), "GtkScrolledWindow example");
    gtk_container_set_border_width (GTK_CONTAINER (window), 0);
    gtk_widget_set_usize(window, 300, 300);
    
    /* create a scrolled window. */
    swin = gtk_scrolled_window_new (NULL, NULL);
    
    gtk_container_set_border_width (GTK_CONTAINER (swin), 10);
    gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swin),
      GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
    gtk_box_pack_start (GTK_BOX (GTK_DIALOG(window)->vbox), swin, 
      TRUE, TRUE, 0);
    
    vbox = gtk_vbox_new (true, 2);
    gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (swin), vbox);
    
    /* create a grid of toggle buttons */
    for (j = 0; j < 10; j++) {
      hbox = gtk_hbox_new (false, 2);
      gtk_box_pack_start (GTK_BOX (vbox), hbox, true, true, 0);

      button = gtk_toggle_button_new_with_label (" X ");
      gtk_box_pack_start (GTK_BOX (hbox), button, false, false, 2); 
      button = gtk_toggle_button_new_with_label (" Y ");
      gtk_box_pack_start (GTK_BOX (hbox), button, false, false, 2); 

      buffer = g_strdup_printf ("variable %d\n", j);
      label = gtk_label_new (buffer);
      /*gtk_misc_set_alignment (GTK_MISC(label), 0, .5);*/
      g_free (buffer);

      align = gtk_alignment_new (0, 1.0, 0, 0);
      gtk_box_pack_start (GTK_BOX (hbox), align, 0, 1, 0);
      gtk_container_add (GTK_CONTAINER (align), label);
   }
    
   /* Add a "close" button to the bottom of the dialog */
   button = gtk_button_new_with_label ("close");
   gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
     (GtkSignalFunc) gtk_widget_destroy, GTK_OBJECT (window));
   gtk_box_pack_start (GTK_BOX (GTK_DIALOG (window)->action_area),
     button, TRUE, TRUE, 0);
    
   gtk_widget_show_all (window);
   gtk_main();
   return(0);
}