m_items.c revision 1.5 
1/*	$OpenBSD: m_items.c,v 1.5 1999/05/17 03:04:25 millert Exp $	*/
2
3/****************************************************************************
4 * Copyright (c) 1998 Free Software Foundation, Inc.                        *
5 *                                                                          *
6 * Permission is hereby granted, free of charge, to any person obtaining a  *
7 * copy of this software and associated documentation files (the            *
8 * "Software"), to deal in the Software without restriction, including      *
9 * without limitation the rights to use, copy, modify, merge, publish,      *
10 * distribute, distribute with modifications, sublicense, and/or sell       *
11 * copies of the Software, and to permit persons to whom the Software is    *
12 * furnished to do so, subject to the following conditions:                 *
13 *                                                                          *
14 * The above copyright notice and this permission notice shall be included  *
15 * in all copies or substantial portions of the Software.                   *
16 *                                                                          *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
24 *                                                                          *
25 * Except as contained in this notice, the name(s) of the above copyright   *
26 * holders shall not be used in advertising or otherwise to promote the     *
27 * sale, use or other dealings in this Software without prior written       *
28 * authorization.                                                           *
29 ****************************************************************************/
30
31/****************************************************************************
32 *   Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997            *
33 ****************************************************************************/
34
35/***************************************************************************
36* Module m_items                                                           *
37* Connect and disconnect items to and from menus                           *
38***************************************************************************/
39
40#include "menu.priv.h"
41
42MODULE_ID("$From: m_items.c,v 1.8 1999/05/16 17:26:50 juergen Exp $")
43
44/*---------------------------------------------------------------------------
45|   Facility      :  libnmenu
46|   Function      :  int set_menu_items(MENU *menu, ITEM **items)
47|
48|   Description   :  Sets the item pointer array connected to menu.
49|
50|   Return Values :  E_OK           - success
51|                    E_POSTED       - menu is already posted
52|                    E_CONNECTED    - one or more items are already connected
53|                                     to another menu.
54|                    E_BAD_ARGUMENT - An incorrect menu or item array was
55|                                     passed to the function
56+--------------------------------------------------------------------------*/
57int set_menu_items(MENU * menu, ITEM ** items)
58{
59  if (!menu || (items && !(*items)))
60    RETURN(E_BAD_ARGUMENT);
61
62  if ( menu->status & _POSTED )
63    RETURN(E_POSTED);
64
65  if (menu->items)
66    _nc_Disconnect_Items(menu);
67
68  if (items)
69    {
70      if(!_nc_Connect_Items( menu, items ))
71	RETURN(E_CONNECTED);
72    }
73
74  menu->items = items;
75  RETURN(E_OK);
76}
77
78/*---------------------------------------------------------------------------
79|   Facility      :  libnmenu
80|   Function      :  ITEM **menu_items(const MENU *menu)
81|
82|   Description   :  Returns a pointer to the item pointer arry of the menu
83|
84|   Return Values :  NULL on error
85+--------------------------------------------------------------------------*/
86ITEM **menu_items(const MENU *menu)
87{
88  return(menu ? menu->items : (ITEM **)0);
89}
90
91/*---------------------------------------------------------------------------
92|   Facility      :  libnmenu
93|   Function      :  int item_count(const MENU *menu)
94|
95|   Description   :  Get the number of items connected to the menu. If the
96|                    menu pointer is NULL we return -1.
97|
98|   Return Values :  Number of items or -1 to indicate error.
99+--------------------------------------------------------------------------*/
100int item_count(const MENU *menu)
101{
102  return(menu ? menu->nitems : -1);
103}
104
105/* m_items.c ends here */
106