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>Table Packing Example

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>Table Packing Example

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>Here we make a window with three buttons in a 2x2 table.

The first two buttons will be placed in the upper row.

A third, quit button, is placed in the lower row, spanning both columns.

Which means it should look something like this:

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>Here's the source code:

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#include <gtk/gtk.h>

/* Our callback.

 * The data passed to this function is printed to stdout */

static void callback( GtkWidget *widget,

                      gpointer   data )

{

    g_print ("Hello again - %s was pressed\n", (char *) data);

}

/* This callback quits the program */

static gboolean delete_event( GtkWidget *widget,

                              GdkEvent  *event,

                              gpointer   data )

{

    gtk_main_quit ();

    return FALSE;

}

int main( int   argc,

          char *argv[] )

{

    GtkWidget *window;

    GtkWidget *button;

    GtkWidget *table;

    gtk_init (&argc, &argv);

    /* Create a new window */

    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);

    /* Set the window title */

    gtk_window_set_title (GTK_WINDOW (window), "Table");

    /* Set a handler for delete_event that immediately

     * exits GTK. */

    g_signal_connect (window, "delete-event",

                      G_CALLBACK (delete_event), NULL);

    /* Sets the border width of the window. */

    gtk_container_set_border_width (GTK_CONTAINER (window), 20);

    /* Create a 2x2 table */

    table = gtk_table_new (2, 2, TRUE);

    /* Put the table in the main window */

    gtk_container_add (GTK_CONTAINER (window), table);

    /* Create first button */

    button = gtk_button_new_with_label ("button 1");

    /* When the button is clicked, we call the "callback" function

     * with a pointer to "button 1" as its argument */

    g_signal_connect (button, "clicked",

	              G_CALLBACK (callback), (gpointer) "button 1");

    /* Insert button 1 into the upper left quadrant of the table */

    gtk_table_attach_defaults (GTK_TABLE (table), button, 0, 1, 0, 1);

    gtk_widget_show (button);

    /* Create second button */

    button = gtk_button_new_with_label ("button 2");

    /* When the button is clicked, we call the "callback" function

     * with a pointer to "button 2" as its argument */

    g_signal_connect (button, "clicked",

                      G_CALLBACK (callback), (gpointer) "button 2");

    /* Insert button 2 into the upper right quadrant of the table */

    gtk_table_attach_defaults (GTK_TABLE (table), button, 1, 2, 0, 1);

    gtk_widget_show (button);

    /* Create "Quit" button */

    button = gtk_button_new_with_label ("Quit");

    /* When the button is clicked, we call the "delete-event" function

     * and the program exits */

    g_signal_connect (button, "clicked",

                      G_CALLBACK (delete_event), NULL);

    /* Insert the quit button into the both 

     * lower quadrants of the table */

    gtk_table_attach_defaults (GTK_TABLE (table), button, 0, 2, 1, 2);

    gtk_widget_show (button);

    gtk_widget_show (table);

    gtk_widget_show (window);

    gtk_main ();

    return 0;

}

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