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nautilus-column-provider.c

/*
 *  nautilus-column-provider.c - Interface for Nautilus extensions 
 *                               that provide column specifications.
 *
 *  Copyright (C) 2003 Novell, Inc.
 *
 *  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., 675 Mass Ave, Cambridge, MA 02139, USA.
 * 
 *  Author:  Dave Camp <dave@ximian.com>
 *
 */

#include <config.h>
#include "nautilus-column-provider.h"

#include <glib-object.h>

static void
nautilus_column_provider_base_init (gpointer g_class)
{
}

GType                   
nautilus_column_provider_get_type (void)
{
      static GType type = 0;

      if (!type) {
            const GTypeInfo info = {
                  sizeof (NautilusColumnProviderIface),
                  nautilus_column_provider_base_init,
                  NULL,
                  NULL,
                  NULL,
                  NULL,
                  0,
                  0,
                  NULL
            };
            
            type = g_type_register_static (G_TYPE_INTERFACE, 
                                     "NautilusColumnProvider",
                                     &info, 0);
            g_type_interface_add_prerequisite (type, G_TYPE_OBJECT);
      }

      return type;
}

GList *
nautilus_column_provider_get_columns (NautilusColumnProvider *provider)
{
      g_return_val_if_fail (NAUTILUS_IS_COLUMN_PROVIDER (provider), NULL);
      g_return_val_if_fail (NAUTILUS_COLUMN_PROVIDER_GET_IFACE (provider)->get_columns != NULL, NULL);

      return NAUTILUS_COLUMN_PROVIDER_GET_IFACE (provider)->get_columns 
            (provider);
}

                                     

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