/* testmultidisplay.c

 * Copyright (C) 2001 Sun Microsystems Inc.

 * Author: Erwann Chenede <erwann.chenede@sun.com>

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public

 * License along with this library; if not, write to the

 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

 * Boston, MA 02111-1307, USA.

 */

#include "config.h"

#include <stdlib.h>

#include <gtk/gtk.h>

static gint num_monitors;

static gint primary_monitor;

static void

request (GtkWidget      *widget,

	 gpointer        user_data)

{

  gchar *str;

  GdkScreen *screen = gtk_widget_get_screen (widget);

  gint i = gdk_screen_get_monitor_at_window (screen,

					     widget->window);

  if (i < 0)

    str = g_strdup ("<big>Not on a monitor </big>");

  else

    {

      GdkRectangle monitor;

      gdk_screen_get_monitor_geometry (screen,

                                       i, &monitor);

      primary_monitor = gdk_screen_get_primary_monitor (screen);

      str = g_strdup_printf ("<big>"

			     "Monitor %d of %d</big>\n"

			     "Width - Height       : (%d,%d)\n"

			     "Top left coordinate : (%d,%d)\n"

                             "Primary monitor: %d",

                             i + 1, num_monitors,

			     monitor.width, monitor.height,

                             monitor.x, monitor.y,

                             primary_monitor);

    }

  gtk_label_set_markup (GTK_LABEL (user_data), str);

  g_free (str);

}

static void

monitors_changed_cb (GdkScreen *screen,

                     gpointer   data)

{

  GtkWidget *label = (GtkWidget *)data;

  request (label, label);

}

int

main (int argc, char *argv[])

{

  GtkWidget *window, *label, *vbox, *button;

  GdkScreen *screen;

  gint i;

  gtk_init (&argc, &argv);

  screen = gdk_screen_get_default ();

  num_monitors = gdk_screen_get_n_monitors (screen);

  if (num_monitors == 1)

    g_warning ("The default screen of the current display only has one monitor.");

  primary_monitor = gdk_screen_get_primary_monitor (screen);

  for (i = 0; i < num_monitors; i++)

    {

      GdkRectangle monitor; 

      gchar *str;

      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);

      gdk_screen_get_monitor_geometry (screen, i, &monitor);

      gtk_window_set_default_size (GTK_WINDOW (window), 200, 200);

      gtk_window_move (GTK_WINDOW (window), (monitor.width - 200) / 2 + monitor.x,

		       (monitor.height - 200) / 2 + monitor.y);

      label = gtk_label_new (NULL);

      str = g_strdup_printf ("<big>"

			     "Monitor %d of %d</big>\n"

			     "Width - Height       : (%d,%d)\n"

			     "Top left coordinate : (%d,%d)\n"

                             "Primary monitor: %d",

                             i + 1, num_monitors,

			     monitor.width, monitor.height,

                             monitor.x, monitor.y,

                             primary_monitor);

      gtk_label_set_markup (GTK_LABEL (label), str);

      g_free (str);

      vbox = gtk_vbox_new (TRUE, 1);

      gtk_container_add (GTK_CONTAINER (window), vbox);

      gtk_container_add (GTK_CONTAINER (vbox), label);

      button = gtk_button_new_with_label ("Query current monitor");

      g_signal_connect (button, "clicked", G_CALLBACK (request), label);

      gtk_container_add (GTK_CONTAINER (vbox), button);

      button = gtk_button_new_with_label ("Close");

      g_signal_connect (button, "clicked", G_CALLBACK (gtk_main_quit), NULL);

      gtk_container_add (GTK_CONTAINER (vbox), button);

      gtk_widget_show_all (window);

      g_signal_connect (screen, "monitors-changed",

                        G_CALLBACK (monitors_changed_cb), label);

    }

  gtk_main ();

  return 0;

}