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28
29/****************************************************************************
30 *   Author:  Juergen Pfeifer, 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 1.16 2005/01/16 01:02:23 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  T((T_CALLED("set_menu_items(%p,%p)"), menu, items));
59
60  if (!menu || (items && !(*items)))
61    RETURN(E_BAD_ARGUMENT);
62
63  if (menu->status & _POSTED)
64    RETURN(E_POSTED);
65
66  if (menu->items)
67    _nc_Disconnect_Items(menu);
68
69  if (items)
70    {
71      if (!_nc_Connect_Items(menu, items))
72	RETURN(E_CONNECTED);
73    }
74
75  menu->items = items;
76  RETURN(E_OK);
77}
78
79/*---------------------------------------------------------------------------
80|   Facility      :  libnmenu
81|   Function      :  ITEM **menu_items(const MENU *menu)
82|
83|   Description   :  Returns a pointer to the item pointer array of the menu
84|
85|   Return Values :  NULL on error
86+--------------------------------------------------------------------------*/
87NCURSES_EXPORT(ITEM **)
88menu_items(const MENU * menu)
89{
90  T((T_CALLED("menu_items(%p)"), menu));
91  returnItemPtr(menu ? menu->items : (ITEM **) 0);
92}
93
94/*---------------------------------------------------------------------------
95|   Facility      :  libnmenu
96|   Function      :  int item_count(const MENU *menu)
97|
98|   Description   :  Get the number of items connected to the menu. If the
99|                    menu pointer is NULL we return -1.
100|
101|   Return Values :  Number of items or -1 to indicate error.
102+--------------------------------------------------------------------------*/
103NCURSES_EXPORT(int)
104item_count(const MENU * menu)
105{
106  T((T_CALLED("item_count(%p)"), menu));
107  returnCode(menu ? menu->nitems : -1);
108}
109
110/* m_items.c ends here */
111