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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-gtk-utils.c
*
* Copyright (C) 2000 Helix Code, Inc.
*
* 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.
*
* Author: Ettore Perazzoli
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "e-gtk-utils.h"
/* (Cut and pasted from Gtk.) */
typedef struct DisconnectInfo {
unsigned int signal_handler;
GtkObject *object1;
unsigned int disconnect_handler1;
GtkObject *object2;
unsigned int disconnect_handler2;
} DisconnectInfo;
static unsigned int
alive_disconnecter (GtkObject *object,
DisconnectInfo *info)
{
g_assert (info != NULL);
gtk_signal_disconnect (info->object1, info->disconnect_handler1);
gtk_signal_disconnect (info->object1, info->signal_handler);
gtk_signal_disconnect (info->object2, info->disconnect_handler2);
g_free (info);
return 0;
}
/**
* e_gtk_signal_connect_full_while_alive:
* @object:
* @name:
* @func:
* @marshal:
* @data:
* @destroy_func:
* @object_signal:
* @after:
* @alive_object:
*
* Connect a signal like `gtk_signal_connect_while_alive()', but with full
* params like `gtk_signal_connect_full()'.
**/
void
e_gtk_signal_connect_full_while_alive (GtkObject *object,
const char *name,
GtkSignalFunc func,
GtkCallbackMarshal marshal,
void *data,
GtkDestroyNotify destroy_func,
gboolean object_signal,
gboolean after,
GtkObject *alive_object)
{
DisconnectInfo *info;
g_return_if_fail (GTK_IS_OBJECT (object));
g_return_if_fail (name != NULL);
g_return_if_fail (func != NULL);
g_return_if_fail (GTK_IS_OBJECT (alive_object));
info = g_new (DisconnectInfo, 1);
info->signal_handler = gtk_signal_connect_full (object, name,
func, marshal, data,
destroy_func,
object_signal, after);
info->object1 = object;
info->disconnect_handler1 = gtk_signal_connect (object, "destroy",
GTK_SIGNAL_FUNC (alive_disconnecter), info);
info->object2 = alive_object;
info->disconnect_handler2 = gtk_signal_connect (alive_object, "destroy",
GTK_SIGNAL_FUNC (alive_disconnecter), info);
}
/**
* gtk_radio_button_get_nth_selected:
* @button: A GtkRadioButton
*
* Returns an int indicating which button in the radio group is
* toggled active. NOTE: radio group item numbering starts at zero.
**/
int
gtk_radio_button_get_nth_selected (GtkRadioButton *button)
{
GSList *l;
int i, c;
g_return_val_if_fail (button != NULL, 0);
g_return_val_if_fail (GTK_IS_RADIO_BUTTON (button), 0);
c = g_slist_length (button->group);
for (i = 0, l = button->group; l; l = l->next, i++) {
GtkRadioButton *tmp = l->data;
if (GTK_TOGGLE_BUTTON (tmp)->active)
return c - i - 1;
}
return 0;
}
/**
* gtk_radio_button_select_nth:
* @button: A GtkRadioButton
* @n: Which button to select from the group
*
* Select the Nth item of a radio group. NOTE: radio group items
* start numbering from zero
**/
void
gtk_radio_button_select_nth (GtkRadioButton *button, int n)
{
GSList *l;
int len;
g_return_if_fail (button != NULL);
g_return_if_fail (GTK_IS_RADIO_BUTTON (button));
len = g_slist_length (button->group);
if ((n <= len) && (n > 0)) {
l = g_slist_nth (button->group, len - n - 1);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (l->data), TRUE);
}
}
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