1 /****************************************************************************
2 * Copyright 2020,2021 Thomas E. Dickey *
3 * Copyright 1998-2005,2010 Free Software Foundation, Inc. *
4 * *
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10 * copies of the Software, and to permit persons to whom the Software is *
11 * furnished to do so, subject to the following conditions: *
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13 * The above copyright notice and this permission notice shall be included *
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28 ****************************************************************************/
29
30 /****************************************************************************
31 * Author: Juergen Pfeifer, 1995,1997 *
32 ****************************************************************************/
33
34 /***************************************************************************
35 * Module m_items *
36 * Connect and disconnect items to and from menus *
37 ***************************************************************************/
38
39 #include "menu.priv.h"
40
41 MODULE_ID("$Id: m_items.c,v 1.21 2021/06/17 21:20:30 tom Exp $")
42
43 /*---------------------------------------------------------------------------
44 | Facility : libnmenu
45 | Function : int set_menu_items(MENU *menu, ITEM **items)
46 |
47 | Description : Sets the item pointer array connected to menu.
48 |
49 | Return Values : E_OK - success
50 | E_POSTED - menu is already posted
51 | E_CONNECTED - one or more items are already connected
52 | to another menu.
53 | E_BAD_ARGUMENT - An incorrect menu or item array was
54 | passed to the function
55 +--------------------------------------------------------------------------*/
MENU_EXPORT(int)56 MENU_EXPORT(int)
57 set_menu_items(MENU *menu, ITEM **items)
58 {
59 T((T_CALLED("set_menu_items(%p,%p)"), (void *)menu, (void *)items));
60
61 if (!menu || (items && !(*items)))
62 RETURN(E_BAD_ARGUMENT);
63
64 if (menu->status & _POSTED)
65 RETURN(E_POSTED);
66
67 if (menu->items)
68 _nc_Disconnect_Items(menu);
69
70 if (items)
71 {
72 if (!_nc_Connect_Items(menu, items))
73 RETURN(E_CONNECTED);
74 }
75
76 menu->items = items;
77 RETURN(E_OK);
78 }
79
80 /*---------------------------------------------------------------------------
81 | Facility : libnmenu
82 | Function : ITEM **menu_items(const MENU *menu)
83 |
84 | Description : Returns a pointer to the item pointer array of the menu
85 |
86 | Return Values : NULL on error
87 +--------------------------------------------------------------------------*/
88 MENU_EXPORT(ITEM **)
menu_items(const MENU * menu)89 menu_items(const MENU *menu)
90 {
91 T((T_CALLED("menu_items(%p)"), (const void *)menu));
92 returnItemPtr(menu ? menu->items : (ITEM **)0);
93 }
94
95 /*---------------------------------------------------------------------------
96 | Facility : libnmenu
97 | Function : int item_count(const MENU *menu)
98 |
99 | Description : Get the number of items connected to the menu. If the
100 | menu pointer is NULL we return -1.
101 |
102 | Return Values : Number of items or -1 to indicate error.
103 +--------------------------------------------------------------------------*/
104 MENU_EXPORT(int)
item_count(const MENU * menu)105 item_count(const MENU *menu)
106 {
107 T((T_CALLED("item_count(%p)"), (const void *)menu));
108 returnCode(menu ? menu->nitems : -1);
109 }
110
111 /* m_items.c ends here */
112