m_items.c revision 1.3 
1/*	$OpenBSD: m_items.c,v 1.3 1997/12/03 05:31:23 millert Exp $	*/
2
3/*-----------------------------------------------------------------------------+
4|           The ncurses menu library is  Copyright (C) 1995-1997               |
5|             by Juergen Pfeifer <Juergen.Pfeifer@T-Online.de>                 |
6|                          All Rights Reserved.                                |
7|                                                                              |
8| Permission to use, copy, modify, and distribute this software and its        |
9| documentation for any purpose and without fee is hereby granted, provided    |
10| that the above copyright notice appear in all copies and that both that      |
11| copyright notice and this permission notice appear in supporting             |
12| documentation, and that the name of the above listed copyright holder(s) not |
13| be used in advertising or publicity pertaining to distribution of the        |
14| software without specific, written prior permission.                         |
15|                                                                              |
16| THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM ALL WARRANTIES WITH REGARD TO  |
17| THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT-  |
18| NESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR   |
19| ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RE- |
20| SULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, |
21| NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH    |
22| THE USE OR PERFORMANCE OF THIS SOFTWARE.                                     |
23+-----------------------------------------------------------------------------*/
24
25/***************************************************************************
26* Module m_items                                                           *
27* Connect and disconnect items to and from menus                           *
28***************************************************************************/
29
30#include "menu.priv.h"
31
32MODULE_ID("Id: m_items.c,v 1.5 1997/10/21 08:44:31 juergen Exp $")
33
34/*---------------------------------------------------------------------------
35|   Facility      :  libnmenu
36|   Function      :  int set_menu_items(MENU *menu, ITEM **items)
37|
38|   Description   :  Sets the item pointer array connected to menu.
39|
40|   Return Values :  E_OK           - success
41|                    E_POSTED       - menu is already posted
42|                    E_CONNECTED    - one or more items are already connected
43|                                     to another menu.
44|                    E_BAD_ARGUMENT - An incorrect menu or item array was
45|                                     passed to the function
46+--------------------------------------------------------------------------*/
47int set_menu_items(MENU * menu, ITEM ** items)
48{
49  if (!menu || (items && !(*items)))
50    RETURN(E_BAD_ARGUMENT);
51
52  if ( menu->status & _POSTED )
53    RETURN(E_POSTED);
54
55  if (menu->items)
56    _nc_Disconnect_Items(menu);
57
58  if (items)
59    {
60      if(!_nc_Connect_Items( menu, items ))
61	RETURN(E_CONNECTED);
62    }
63
64  menu->items = items;
65  RETURN(E_OK);
66}
67
68/*---------------------------------------------------------------------------
69|   Facility      :  libnmenu
70|   Function      :  ITEM **menu_items(const MENU *menu)
71|
72|   Description   :  Returns a pointer to the item pointer arry of the menu
73|
74|   Return Values :  NULL on error
75+--------------------------------------------------------------------------*/
76ITEM **menu_items(const MENU *menu)
77{
78  return(menu ? menu->items : (ITEM **)0);
79}
80
81/*---------------------------------------------------------------------------
82|   Facility      :  libnmenu
83|   Function      :  int item_count(const MENU *menu)
84|
85|   Description   :  Get the number of items connected to the menu. If the
86|                    menu pointer is NULL we return -1.
87|
88|   Return Values :  Number of items or -1 to indicate error.
89+--------------------------------------------------------------------------*/
90int item_count(const MENU *menu)
91{
92  return(menu ? menu->nitems : -1);
93}
94
95/* m_items.c ends here */
96