1 /**************************************************************************** 2 * Copyright 2020,2021 Thomas E. Dickey * 3 * Copyright 1998-2005,2010 Free Software Foundation, Inc. * 4 * * 5 * Permission is hereby granted, free of charge, to any person obtaining a * 6 * copy of this software and associated documentation files (the * 7 * "Software"), to deal in the Software without restriction, including * 8 * without limitation the rights to use, copy, modify, merge, publish, * 9 * distribute, distribute with modifications, sublicense, and/or sell * 10 * copies of the Software, and to permit persons to whom the Software is * 11 * furnished to do so, subject to the following conditions: * 12 * * 13 * The above copyright notice and this permission notice shall be included * 14 * in all copies or substantial portions of the Software. * 15 * * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 23 * * 24 * Except as contained in this notice, the name(s) of the above copyright * 25 * holders shall not be used in advertising or otherwise to promote the * 26 * sale, use or other dealings in this Software without prior written * 27 * authorization. * 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 +--------------------------------------------------------------------------*/ 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 **) 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) 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