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

[Christian Seberino <seberino spawar navy mil>]

I know GtkAlignment was great for centering a button
vertically and horizontally.  Maybe labels are more
tricky.  

Why don't you put a drawing area there and then
you can center your text in the drawing area
with gdk_draw_string???

Chris


On Thu, Mar 28, 2002 at 02:07:26PM -0500, Deborah Swayne wrote:
> 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);
> }
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