glib/gio/gicon.c
Matthias Clasen acb7f6449a 543504 – crash in Epiphany Web Browser: Opening local file
2008-07-19  Matthias Clasen  <mclasen@redhat.com>

        543504 – crash in Epiphany Web Browser: Opening local file

        * gappinfo.c:
        * gasyncresult.c:
        * gdesktopappinfo.c:
        * gdrive.c:
        * gfile.c:
        * gicon.c:
        * gloadableicon.c:
        * gmount.c:
        * gseekable.c:
        * gvolume.c: Register types thread-safely.
        Patch by Christian Persch


svn path=/trunk/; revision=7208
2008-07-20 00:34:58 +00:00

145 lines
3.5 KiB
C

/* GIO - GLib Input, Output and Streaming Library
*
* Copyright (C) 2006-2007 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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.
*
* Author: Alexander Larsson <alexl@redhat.com>
*/
#include "config.h"
#include "gicon.h"
#include "glibintl.h"
#include "gioalias.h"
/**
* SECTION:gicon
* @short_description: Interface for icons
* @include: gio/gio.h
*
* #GIcon is a very minimal interface for icons. It provides functions
* for checking the equality of two icons and hashing of icons.
*
* #GIcon does not provide the actual pixmap for the icon as this is out
* of GIO's scope, however implementations of #GIcon may contain the name
* of an icon (see #GThemedIcon), or the path to an icon (see #GLoadableIcon).
*
* To obtain a hash of a #GIcon, see g_icon_hash().
*
* To check if two #GIcons are equal, see g_icon_equal().
**/
static void g_icon_base_init (gpointer g_class);
static void g_icon_class_init (gpointer g_class,
gpointer class_data);
GType
g_icon_get_type (void)
{
static volatile gsize g_define_type_id__volatile = 0;
if (g_once_init_enter (&g_define_type_id__volatile))
{
const GTypeInfo icon_info =
{
sizeof (GIconIface), /* class_size */
g_icon_base_init, /* base_init */
NULL, /* base_finalize */
g_icon_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
0,
0, /* n_preallocs */
NULL
};
GType g_define_type_id =
g_type_register_static (G_TYPE_INTERFACE, I_("GIcon"),
&icon_info, 0);
g_type_interface_add_prerequisite (g_define_type_id, G_TYPE_OBJECT);
g_once_init_leave (&g_define_type_id__volatile, g_define_type_id);
}
return g_define_type_id__volatile;
}
static void
g_icon_class_init (gpointer g_class,
gpointer class_data)
{
}
static void
g_icon_base_init (gpointer g_class)
{
}
/**
* g_icon_hash:
* @icon: #gconstpointer to an icon object.
*
* Gets a hash for an icon.
*
* Returns: a #guint containing a hash for the @icon, suitable for
* use in a #GHashTable or similar data structure.
**/
guint
g_icon_hash (gconstpointer icon)
{
GIconIface *iface;
g_return_val_if_fail (G_IS_ICON (icon), 0);
iface = G_ICON_GET_IFACE (icon);
return (* iface->hash) ((GIcon *)icon);
}
/**
* g_icon_equal:
* @icon1: pointer to the first #GIcon.
* @icon2: pointer to the second #GIcon.
*
* Checks if two icons are equal.
*
* Returns: %TRUE if @icon1 is equal to @icon2. %FALSE otherwise.
**/
gboolean
g_icon_equal (GIcon *icon1,
GIcon *icon2)
{
GIconIface *iface;
if (icon1 == NULL && icon2 == NULL)
return TRUE;
if (icon1 == NULL || icon2 == NULL)
return FALSE;
if (G_TYPE_FROM_INSTANCE (icon1) != G_TYPE_FROM_INSTANCE (icon2))
return FALSE;
iface = G_ICON_GET_IFACE (icon1);
return (* iface->equal) (icon1, icon2);
}
#define __G_ICON_C__
#include "gioaliasdef.c"