m_items.c revision 76726 
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28
29/****************************************************************************
30 *   Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997            *
31 ****************************************************************************/
32
33/***************************************************************************
34* Module m_items                                                           *
35* Connect and disconnect items to and from menus                           *
36***************************************************************************/
37
38#include "menu.priv.h"
39
40MODULE_ID("$Id: m_items.c,v 1.9 2000/12/10 02:16:48 tom Exp $")
41
42/*---------------------------------------------------------------------------
43|   Facility      :  libnmenu
44|   Function      :  int set_menu_items(MENU *menu, ITEM **items)
45|
46|   Description   :  Sets the item pointer array connected to menu.
47|
48|   Return Values :  E_OK           - success
49|                    E_POSTED       - menu is already posted
50|                    E_CONNECTED    - one or more items are already connected
51|                                     to another menu.
52|                    E_BAD_ARGUMENT - An incorrect menu or item array was
53|                                     passed to the function
54+--------------------------------------------------------------------------*/
55NCURSES_EXPORT(int)
56set_menu_items (MENU * menu, ITEM ** items)
57{
58  if (!menu || (items && !(*items)))
59    RETURN(E_BAD_ARGUMENT);
60
61  if ( menu->status & _POSTED )
62    RETURN(E_POSTED);
63
64  if (menu->items)
65    _nc_Disconnect_Items(menu);
66
67  if (items)
68    {
69      if(!_nc_Connect_Items( menu, items ))
70	RETURN(E_CONNECTED);
71    }
72
73  menu->items = items;
74  RETURN(E_OK);
75}
76
77/*---------------------------------------------------------------------------
78|   Facility      :  libnmenu
79|   Function      :  ITEM **menu_items(const MENU *menu)
80|
81|   Description   :  Returns a pointer to the item pointer arry of the menu
82|
83|   Return Values :  NULL on error
84+--------------------------------------------------------------------------*/
85NCURSES_EXPORT(ITEM **)
86menu_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+--------------------------------------------------------------------------*/
100NCURSES_EXPORT(int)
101item_count (const MENU *menu)
102{
103  return(menu ? menu->nitems : -1);
104}
105
106/* m_items.c ends here */
107