1 /**************************************************************************** 2 * Copyright 2020,2021 Thomas E. Dickey * 3 * Copyright 1998-2004,2010 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_item_val * 36 * Set and get menus item values * 37 ***************************************************************************/ 38 39 #include "menu.priv.h" 40 41 MODULE_ID("$Id: m_item_val.c,v 1.20 2021/06/17 21:11:08 tom Exp $") 42 43 /*--------------------------------------------------------------------------- 44 | Facility : libnmenu 45 | Function : int set_item_value(ITEM *item, int value) 46 | 47 | Description : Programmatically set the item's selection value. This is 48 | only allowed if the item is selectable at all and if 49 | it is not connected to a single-valued menu. 50 | If the item is connected to a posted menu, the menu 51 | will be redisplayed. 52 | 53 | Return Values : E_OK - success 54 | E_REQUEST_DENIED - not selectable or single valued menu 55 +--------------------------------------------------------------------------*/ 56 MENU_EXPORT(int) 57 set_item_value(ITEM *item, bool value) 58 { 59 T((T_CALLED("set_item_value(%p,%d)"), (void *)item, value)); 60 if (item) 61 { 62 MENU *menu = item->imenu; 63 64 if ((!(item->opt & O_SELECTABLE)) || 65 (menu && (menu->opt & O_ONEVALUE))) 66 RETURN(E_REQUEST_DENIED); 67 68 if (item->value ^ value) 69 { 70 item->value = value ? TRUE : FALSE; 71 if (menu) 72 { 73 if (menu->status & _POSTED) 74 { 75 Move_And_Post_Item(menu, item); 76 _nc_Show_Menu(menu); 77 } 78 } 79 } 80 } 81 else 82 _nc_Default_Item.value = value; 83 84 RETURN(E_OK); 85 } 86 87 /*--------------------------------------------------------------------------- 88 | Facility : libnmenu 89 | Function : bool item_value(const ITEM *item) 90 | 91 | Description : Return the selection value of the item 92 | 93 | Return Values : TRUE - if item is selected 94 | FALSE - if item is not selected 95 +--------------------------------------------------------------------------*/ 96 MENU_EXPORT(bool) 97 item_value(const ITEM *item) 98 { 99 T((T_CALLED("item_value(%p)"), (const void *)item)); 100 returnBool((Normalize_Item(item)->value) ? TRUE : FALSE); 101 } 102 103 /* m_item_val.c ends here */ 104