/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Copyright (C) 2003-2007 Imendio AB
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Authors: Mikael Hallendal <micke@imendio.com>
* Richard Hult <richard@imendio.com>
* Martyn Russell <martyn@imendio.com>
*/
#include "config.h"
#include <string.h>
#include <gtk/gtk.h>
#include <glade/glade.h>
#include <glib/gi18n.h>
#include <libempathy/gossip-conf.h>
#include "gossip-preferences.h"
#include "gossip-stock.h"
#include "gossip-ui-utils.h"
#include "gossip-theme-manager.h"
#include "gossip-spell.h"
typedef struct {
GtkWidget *dialog;
GtkWidget *notebook;
GtkWidget *checkbutton_show_avatars;
GtkWidget *checkbutton_compact_contact_list;
GtkWidget *checkbutton_show_smileys;
GtkWidget *combobox_chat_theme;
GtkWidget *checkbutton_theme_chat_room;
GtkWidget *checkbutton_separate_chat_windows;
GtkWidget *checkbutton_sounds_for_messages;
GtkWidget *checkbutton_sounds_when_busy;
GtkWidget *checkbutton_sounds_when_away;
GtkWidget *checkbutton_popups_when_available;
GtkWidget *treeview_spell_checker;
GtkWidget *checkbutton_spell_checker;
GList *notify_ids;
} GossipPreferences;
static void preferences_setup_widgets (GossipPreferences *preferences);
static void preferences_languages_setup (GossipPreferences *preferences);
static void preferences_languages_add (GossipPreferences *preferences);
static void preferences_languages_save (GossipPreferences *preferences);
static gboolean preferences_languages_save_foreach (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gchar **languages);
static void preferences_languages_load (GossipPreferences *preferences);
static gboolean preferences_languages_load_foreach (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gchar **languages);
static void preferences_languages_cell_toggled_cb (GtkCellRendererToggle *cell,
gchar *path_string,
GossipPreferences *preferences);
static void preferences_themes_setup (GossipPreferences *preferences);
static void preferences_widget_sync_bool (const gchar *key,
GtkWidget *widget);
static void preferences_widget_sync_int (const gchar *key,
GtkWidget *widget);
static void preferences_widget_sync_string (const gchar *key,
GtkWidget *widget);
static void preferences_widget_sync_string_combo (const gchar *key,
GtkWidget *widget);
static void preferences_notify_int_cb (GossipConf *conf,
const gchar *key,
gpointer user_data);
static void preferences_notify_string_cb (GossipConf *conf,
const gchar *key,
gpointer user_data);
static void preferences_notify_string_combo_cb (GossipConf *conf,
const gchar *key,
gpointer user_data);
static void preferences_notify_bool_cb (GossipConf *conf,
const gchar *key,
gpointer user_data);
static void preferences_notify_sensitivity_cb (GossipConf *conf,
const gchar *key,
gpointer user_data);
static void preferences_hookup_spin_button (GossipPreferences *preferences,
const gchar *key,
GtkWidget *widget);
static void preferences_hookup_entry (GossipPreferences *preferences,
const gchar *key,
GtkWidget *widget);
static void preferences_hookup_toggle_button (GossipPreferences *preferences,
const gchar *key,
GtkWidget *widget);
static void preferences_hookup_string_combo (GossipPreferences *preferences,
const gchar *key,
GtkWidget *widget);
static void preferences_hookup_sensitivity (GossipPreferences *preferences,
const gchar *key,
GtkWidget *widget);
static void preferences_spin_button_value_changed_cb (GtkWidget *button,
gpointer user_data);
static void preferences_entry_value_changed_cb (GtkWidget *entry,
gpointer user_data);
static void preferences_toggle_button_toggled_cb (GtkWidget *button,
gpointer user_data);
static void preferences_string_combo_changed_cb (GtkWidget *button,
gpointer user_data);
static void preferences_destroy_cb (GtkWidget *widget,
GossipPreferences *preferences);
static void preferences_response_cb (GtkWidget *widget,
gint response,
GossipPreferences *preferences);
enum {
COL_LANG_ENABLED,
COL_LANG_CODE,
COL_LANG_NAME,
COL_LANG_COUNT
};
enum {
COL_COMBO_VISIBLE_NAME,
COL_COMBO_NAME,
COL_COMBO_COUNT
};
static void
preferences_setup_widgets (GossipPreferences *preferences)
{
preferences_hookup_toggle_button (preferences,
GOSSIP_PREFS_SOUNDS_FOR_MESSAGES,
preferences->checkbutton_sounds_for_messages);
preferences_hookup_toggle_button (preferences,
GOSSIP_PREFS_SOUNDS_WHEN_AWAY,
preferences->checkbutton_sounds_when_away);
preferences_hookup_toggle_button (preferences,
GOSSIP_PREFS_SOUNDS_WHEN_BUSY,
preferences->checkbutton_sounds_when_busy);
preferences_hookup_toggle_button (preferences,
GOSSIP_PREFS_POPUPS_WHEN_AVAILABLE,
preferences->checkbutton_popups_when_available);
preferences_hookup_sensitivity (preferences,
GOSSIP_PREFS_SOUNDS_FOR_MESSAGES,
preferences->checkbutton_sounds_when_away);
preferences_hookup_sensitivity (preferences,
GOSSIP_PREFS_SOUNDS_FOR_MESSAGES,
preferences->checkbutton_sounds_when_busy);
preferences_hookup_toggle_button (preferences,
GOSSIP_PREFS_UI_SEPARATE_CHAT_WINDOWS,
preferences->checkbutton_separate_chat_windows);
preferences_hookup_toggle_button (preferences,
GOSSIP_PREFS_UI_SHOW_AVATARS,
preferences->checkbutton_show_avatars);
preferences_hookup_toggle_button (preferences,
GOSSIP_PREFS_UI_COMPACT_CONTACT_LIST,
preferences->checkbutton_compact_contact_list);
preferences_hookup_toggle_button (preferences,
GOSSIP_PREFS_CHAT_SHOW_SMILEYS,
preferences->checkbutton_show_smileys);
preferences_hookup_string_combo (preferences,
GOSSIP_PREFS_CHAT_THEME,
preferences->combobox_chat_theme);
preferences_hookup_toggle_button (preferences,
GOSSIP_PREFS_CHAT_THEME_CHAT_ROOM,
preferences->checkbutton_theme_chat_room);
preferences_hookup_toggle_button (preferences,
GOSSIP_PREFS_CHAT_SPELL_CHECKER_ENABLED,
preferences->checkbutton_spell_checker);
preferences_hookup_sensitivity (preferences,
GOSSIP_PREFS_CHAT_SPELL_CHECKER_ENABLED,
preferences->treeview_spell_checker);
}
static void
preferences_languages_setup (GossipPreferences *preferences)
{
GtkTreeView *view;
GtkListStore *store;
GtkTreeSelection *selection;
GtkTreeModel *model;
GtkTreeViewColumn *column;
GtkCellRenderer *renderer;
guint col_offset;
view = GTK_TREE_VIEW (preferences->treeview_spell_checker);
store = gtk_list_store_new (COL_LANG_COUNT,
G_TYPE_BOOLEAN, /* enabled */
G_TYPE_STRING, /* code */
G_TYPE_STRING); /* name */
gtk_tree_view_set_model (view, GTK_TREE_MODEL (store));
selection = gtk_tree_view_get_selection (view);
gtk_tree_selection_set_mode (selection, GTK_SELECTION_SINGLE);
model = GTK_TREE_MODEL (store);
renderer = gtk_cell_renderer_toggle_new ();
g_signal_connect (renderer, "toggled",
G_CALLBACK (preferences_languages_cell_toggled_cb),
preferences);
column = gtk_tree_view_column_new_with_attributes (NULL, renderer,
"active", COL_LANG_ENABLED,
NULL);
gtk_tree_view_append_column (view, column);
renderer = gtk_cell_renderer_text_new ();
col_offset = gtk_tree_view_insert_column_with_attributes (view,
-1, _("Language"),
renderer,
"text", COL_LANG_NAME,
NULL);
g_object_set_data (G_OBJECT (renderer),
"column", GINT_TO_POINTER (COL_LANG_NAME));
column = gtk_tree_view_get_column (view, col_offset - 1);
gtk_tree_view_column_set_sort_column_id (column, COL_LANG_NAME);
gtk_tree_view_column_set_resizable (column, FALSE);
gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (column), TRUE);
g_object_unref (store);
}
static void
preferences_languages_add (GossipPreferences *preferences)
{
GtkTreeView *view;
GtkListStore *store;
GList *codes, *l;
view = GTK_TREE_VIEW (preferences->treeview_spell_checker);
store = GTK_LIST_STORE (gtk_tree_view_get_model (view));
codes = gossip_spell_get_language_codes ();
for (l = codes; l; l = l->next) {
GtkTreeIter iter;
const gchar *code;
const gchar *name;
code = l->data;
name = gossip_spell_get_language_name (code);
if (!name) {
continue;
}
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter,
COL_LANG_CODE, code,
COL_LANG_NAME, name,
-1);
}
gossip_spell_free_language_codes (codes);
}
static void
preferences_languages_save (GossipPreferences *preferences)
{
GtkTreeView *view;
GtkTreeModel *model;
gchar *languages = NULL;
view = GTK_TREE_VIEW (preferences->treeview_spell_checker);
model = gtk_tree_view_get_model (view);
gtk_tree_model_foreach (model,
(GtkTreeModelForeachFunc) preferences_languages_save_foreach,
&languages);
if (!languages) {
/* Default to english */
languages = g_strdup ("en");
}
gossip_conf_set_string (gossip_conf_get (),
GOSSIP_PREFS_CHAT_SPELL_CHECKER_LANGUAGES,
languages);
g_free (languages);
}
static gboolean
preferences_languages_save_foreach (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gchar **languages)
{
gboolean enabled;
gchar *code;
if (!languages) {
return TRUE;
}
gtk_tree_model_get (model, iter, COL_LANG_ENABLED, &enabled, -1);
if (!enabled) {
return FALSE;
}
gtk_tree_model_get (model, iter, COL_LANG_CODE, &code, -1);
if (!code) {
return FALSE;
}
if (!(*languages)) {
*languages = g_strdup (code);
} else {
gchar *str = *languages;
*languages = g_strdup_printf ("%s,%s", str, code);
g_free (str);
}
g_free (code);
return FALSE;
}
static void
preferences_languages_load (GossipPreferences *preferences)
{
GtkTreeView *view;
GtkTreeModel *model;
gchar *value;
gchar **vlanguages;
if (!gossip_conf_get_string (gossip_conf_get (),
GOSSIP_PREFS_CHAT_SPELL_CHECKER_LANGUAGES,
&value) || !value) {
return;
}
vlanguages = g_strsplit (value, ",", -1);
g_free (value);
view = GTK_TREE_VIEW (preferences->treeview_spell_checker);
model = gtk_tree_view_get_model (view);
gtk_tree_model_foreach (model,
(GtkTreeModelForeachFunc) preferences_languages_load_foreach,
vlanguages);
g_strfreev (vlanguages);
}
static gboolean
preferences_languages_load_foreach (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gchar **languages)
{
gchar *code;
gchar *lang;
gint i;
gboolean found = FALSE;
if (!languages) {
return TRUE;
}
gtk_tree_model_get (model, iter, COL_LANG_CODE, &code, -1);
if (!code) {
return FALSE;
}
for (i = 0, lang = languages[i]; lang; lang = languages[++i]) {
if (strcmp (lang, code) == 0) {
found = TRUE;
}
}
gtk_list_store_set (GTK_LIST_STORE (model), iter, COL_LANG_ENABLED, found, -1);
return FALSE;
}
static void
preferences_languages_cell_toggled_cb (GtkCellRendererToggle *cell,
gchar *path_string,
GossipPreferences *preferences)
{
GtkTreeView *view;
GtkTreeModel *model;
GtkListStore *store;
GtkTreePath *path;
GtkTreeIter iter;
gboolean enabled;
view = GTK_TREE_VIEW (preferences->treeview_spell_checker);
model = gtk_tree_view_get_model (view);
store = GTK_LIST_STORE (model);
path = gtk_tree_path_new_from_string (path_string);
gtk_tree_model_get_iter (model, &iter, path);
gtk_tree_model_get (model, &iter, COL_LANG_ENABLED, &enabled, -1);
enabled ^= 1;
gtk_list_store_set (store, &iter, COL_LANG_ENABLED, enabled, -1);
gtk_tree_path_free (path);
preferences_languages_save (preferences);
}
static void
preferences_themes_setup (GossipPreferences *preferences)
{
GtkComboBox *combo;
GtkListStore *model;
GtkTreeIter iter;
const gchar **themes;
gint i;
combo = GTK_COMBO_BOX (preferences->combobox_chat_theme);
model = gtk_list_store_new (COL_COMBO_COUNT,
G_TYPE_STRING,
G_TYPE_STRING);
themes = gossip_theme_manager_get_themes ();
for (i = 0; themes[i]; i += 2) {
gtk_list_store_append (model, &iter);
gtk_list_store_set (model, &iter,
COL_COMBO_VISIBLE_NAME, _(themes[i + 1]),
COL_COMBO_NAME, themes[i],
-1);
}
gtk_combo_box_set_model (combo, GTK_TREE_MODEL (model));
g_object_unref (model);
}
static void
preferences_widget_sync_bool (const gchar *key, GtkWidget *widget)
{
gboolean value;
if (gossip_conf_get_bool (gossip_conf_get (), key, &value)) {
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), value);
}
}
static void
preferences_widget_sync_int (const gchar *key, GtkWidget *widget)
{
gint value;
if (gossip_conf_get_int (gossip_conf_get (), key, &value)) {
gtk_spin_button_set_value (GTK_SPIN_BUTTON (widget), value);
}
}
static void
preferences_widget_sync_string (const gchar *key, GtkWidget *widget)
{
gchar *value;
if (gossip_conf_get_string (gossip_conf_get (), key, &value) && value) {
gtk_entry_set_text (GTK_ENTRY (widget), value);
g_free (value);
}
}
static void
preferences_widget_sync_string_combo (const gchar *key, GtkWidget *widget)
{
gchar *value;
GtkTreeModel *model;
GtkTreeIter iter;
gboolean found;
if (!gossip_conf_get_string (gossip_conf_get (), key, &value)) {
return;
}
model = gtk_combo_box_get_model (GTK_COMBO_BOX (widget));
found = FALSE;
if (value && gtk_tree_model_get_iter_first (model, &iter)) {
gchar *name;
do {
gtk_tree_model_get (model, &iter,
COL_COMBO_NAME, &name,
-1);
if (strcmp (name, value) == 0) {
found = TRUE;
gtk_combo_box_set_active_iter (GTK_COMBO_BOX (widget), &iter);
break;
} else {
found = FALSE;
}
g_free (name);
} while (gtk_tree_model_iter_next (model, &iter));
}
/* Fallback to the first one. */
if (!found) {
if (gtk_tree_model_get_iter_first (model, &iter)) {
gtk_combo_box_set_active_iter (GTK_COMBO_BOX (widget), &iter);
}
}
g_free (value);
}
static void
preferences_notify_int_cb (GossipConf *conf,
const gchar *key,
gpointer user_data)
{
gint value;
if (gossip_conf_get_int (conf, key, &value)) {
gtk_spin_button_set_value (GTK_SPIN_BUTTON (user_data), value);
}
}
static void
preferences_notify_string_cb (GossipConf *conf,
const gchar *key,
gpointer user_data)
{
gchar *value;
if (gossip_conf_get_string (conf, key, &value) && value) {
gtk_entry_set_text (GTK_ENTRY (user_data), value);
g_free (value);
}
}
static void
preferences_notify_string_combo_cb (GossipConf *conf,
const gchar *key,
gpointer user_data)
{
preferences_widget_sync_string_combo (key, user_data);
}
static void
preferences_notify_bool_cb (GossipConf *conf,
const gchar *key,
gpointer user_data)
{
preferences_widget_sync_bool (key, user_data);
/*
if (gossip_conf_get_bool (conf, key, &value)) {
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (user_data),
gconf_value_get_bool (value));
}
*/
}
static void
preferences_notify_sensitivity_cb (GossipConf *conf,
const gchar *key,
gpointer user_data)
{
gboolean value;
if (gossip_conf_get_bool (conf, key, &value)) {
gtk_widget_set_sensitive (GTK_WIDGET (user_data), value);
}
}
static void
preferences_add_id (GossipPreferences *preferences, guint id)
{
preferences->notify_ids = g_list_prepend (preferences->notify_ids,
GUINT_TO_POINTER (id));
}
static void
preferences_hookup_spin_button (GossipPreferences *preferences,
const gchar *key,
GtkWidget *widget)
{
guint id;
/* Silence warning. */
if (0) {
preferences_hookup_spin_button (preferences, key, widget);
}
preferences_widget_sync_int (key, widget);
g_object_set_data_full (G_OBJECT (widget), "key",
g_strdup (key), g_free);
g_signal_connect (widget,
"value_changed",
G_CALLBACK (preferences_spin_button_value_changed_cb),
NULL);
id = gossip_conf_notify_add (gossip_conf_get (),
key,
preferences_notify_int_cb,
widget);
if (id) {
preferences_add_id (preferences, id);
}
}
static void
preferences_hookup_entry (GossipPreferences *preferences,
const gchar *key,
GtkWidget *widget)
{
guint id;
if (0) { /* Silent warning before we use this function. */
preferences_hookup_entry (preferences, key, widget);
}
preferences_widget_sync_string (key, widget);
g_object_set_data_full (G_OBJECT (widget), "key",
g_strdup (key), g_free);
g_signal_connect (widget,
"changed",
G_CALLBACK (preferences_entry_value_changed_cb),
NULL);
id = gossip_conf_notify_add (gossip_conf_get (),
key,
preferences_notify_string_cb,
widget);
if (id) {
preferences_add_id (preferences, id);
}
}
static void
preferences_hookup_toggle_button (GossipPreferences *preferences,
const gchar *key,
GtkWidget *widget)
{
guint id;
preferences_widget_sync_bool (key, widget);
g_object_set_data_full (G_OBJECT (widget), "key",
g_strdup (key), g_free);
g_signal_connect (widget,
"toggled",
G_CALLBACK (preferences_toggle_button_toggled_cb),
NULL);
id = gossip_conf_notify_add (gossip_conf_get (),
key,
preferences_notify_bool_cb,
widget);
if (id) {
preferences_add_id (preferences, id);
}
}
static void
preferences_hookup_string_combo (GossipPreferences *preferences,
const gchar *key,
GtkWidget *widget)
{
guint id;
preferences_widget_sync_string_combo (key, widget);
g_object_set_data_full (G_OBJECT (widget), "key",
g_strdup (key), g_free);
g_signal_connect (widget,
"changed",
G_CALLBACK (preferences_string_combo_changed_cb),
NULL);
id = gossip_conf_notify_add (gossip_conf_get (),
key,
preferences_notify_string_combo_cb,
widget);
if (id) {
preferences_add_id (preferences, id);
}
}
static void
preferences_hookup_sensitivity (GossipPreferences *preferences,
const gchar *key,
GtkWidget *widget)
{
gboolean value;
guint id;
if (gossip_conf_get_bool (gossip_conf_get (), key, &value)) {
gtk_widget_set_sensitive (widget, value);
}
id = gossip_conf_notify_add (gossip_conf_get (),
key,
preferences_notify_sensitivity_cb,
widget);
if (id) {
preferences_add_id (preferences, id);
}
}
static void
preferences_spin_button_value_changed_cb (GtkWidget *button,
gpointer user_data)
{
const gchar *key;
key = g_object_get_data (G_OBJECT (button), "key");
gossip_conf_set_int (gossip_conf_get (),
key,
gtk_spin_button_get_value (GTK_SPIN_BUTTON (button)));
}
static void
preferences_entry_value_changed_cb (GtkWidget *entry,
gpointer user_data)
{
const gchar *key;
key = g_object_get_data (G_OBJECT (entry), "key");
gossip_conf_set_string (gossip_conf_get (),
key,
gtk_entry_get_text (GTK_ENTRY (entry)));
}
static void
preferences_toggle_button_toggled_cb (GtkWidget *button,
gpointer user_data)
{
const gchar *key;
key = g_object_get_data (G_OBJECT (button), "key");
gossip_conf_set_bool (gossip_conf_get (),
key,
gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button)));
}
static void
preferences_string_combo_changed_cb (GtkWidget *combo,
gpointer user_data)
{
const gchar *key;
GtkTreeModel *model;
GtkTreeIter iter;
gchar *name;
key = g_object_get_data (G_OBJECT (combo), "key");
if (gtk_combo_box_get_active_iter (GTK_COMBO_BOX (combo), &iter)) {
model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo));
gtk_tree_model_get (model, &iter,
COL_COMBO_NAME, &name,
-1);
gossip_conf_set_string (gossip_conf_get (), key, name);
g_free (name);
}
}
static void
preferences_response_cb (GtkWidget *widget,
gint response,
GossipPreferences *preferences)
{
gtk_widget_destroy (widget);
}
static void
preferences_destroy_cb (GtkWidget *widget,
GossipPreferences *preferences)
{
GList *l;
for (l = preferences->notify_ids; l; l = l->next) {
guint id;
id = GPOINTER_TO_UINT (l->data);
gossip_conf_notify_remove (gossip_conf_get (), id);
}
g_list_free (preferences->notify_ids);
g_free (preferences);
}
GtkWidget *
gossip_preferences_show (void)
{
static GossipPreferences *preferences;
GladeXML *glade;
if (preferences) {
gtk_window_present (GTK_WINDOW (preferences->dialog));
return preferences->dialog;
}
preferences = g_new0 (GossipPreferences, 1);
glade = gossip_glade_get_file (
"gossip-preferences.glade",
"preferences_dialog",
NULL,
"preferences_dialog", &preferences->dialog,
"notebook", &preferences->notebook,
"checkbutton_show_avatars", &preferences->checkbutton_show_avatars,
"checkbutton_compact_contact_list", &preferences->checkbutton_compact_contact_list,
"checkbutton_show_smileys", &preferences->checkbutton_show_smileys,
"combobox_chat_theme", &preferences->combobox_chat_theme,
"checkbutton_theme_chat_room", &preferences->checkbutton_theme_chat_room,
"checkbutton_separate_chat_windows", &preferences->checkbutton_separate_chat_windows,
"checkbutton_sounds_for_messages", &preferences->checkbutton_sounds_for_messages,
"checkbutton_sounds_when_busy", &preferences->checkbutton_sounds_when_busy,
"checkbutton_sounds_when_away", &preferences->checkbutton_sounds_when_away,
"checkbutton_popups_when_available", &preferences->checkbutton_popups_when_available,
"treeview_spell_checker", &preferences->treeview_spell_checker,
"checkbutton_spell_checker", &preferences->checkbutton_spell_checker,
NULL);
gossip_glade_connect (glade,
preferences,
"preferences_dialog", "destroy", preferences_destroy_cb,
"preferences_dialog", "response", preferences_response_cb,
NULL);
g_object_unref (glade);
g_object_add_weak_pointer (G_OBJECT (preferences->dialog), (gpointer) &preferences);
preferences_themes_setup (preferences);
preferences_setup_widgets (preferences);
preferences_languages_setup (preferences);
preferences_languages_add (preferences);
preferences_languages_load (preferences);
if (gossip_spell_supported ()) {
GtkWidget *page;
page = gtk_notebook_get_nth_page (GTK_NOTEBOOK (preferences->notebook), 2);
gtk_widget_show (page);
}
gtk_widget_show (preferences->dialog);
return preferences->dialog;
}