1 /* $OpenBSD: m_item_val.c,v 1.6 2001/01/22 18:02:04 millert Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998,2000 Free Software Foundation, Inc. * 5 * * 6 * Permission is hereby granted, free of charge, to any person obtaining a * 7 * copy of this software and associated documentation files (the * 8 * "Software"), to deal in the Software without restriction, including * 9 * without limitation the rights to use, copy, modify, merge, publish, * 10 * distribute, distribute with modifications, sublicense, and/or sell * 11 * copies of the Software, and to permit persons to whom the Software is * 12 * furnished to do so, subject to the following conditions: * 13 * * 14 * The above copyright notice and this permission notice shall be included * 15 * in all copies or substantial portions of the Software. * 16 * * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 24 * * 25 * Except as contained in this notice, the name(s) of the above copyright * 26 * holders shall not be used in advertising or otherwise to promote the * 27 * sale, use or other dealings in this Software without prior written * 28 * authorization. * 29 ****************************************************************************/ 30 31 /**************************************************************************** 32 * Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997 * 33 ****************************************************************************/ 34 35 /*************************************************************************** 36 * Module m_item_val * 37 * Set and get menus item values * 38 ***************************************************************************/ 39 40 #include "menu.priv.h" 41 42 MODULE_ID("$From: m_item_val.c,v 1.9 2000/12/10 02:16:48 tom Exp $") 43 44 /*--------------------------------------------------------------------------- 45 | Facility : libnmenu 46 | Function : int set_item_value(ITEM *item, int value) 47 | 48 | Description : Programmatically set the items selection value. This is 49 | only allowed if the item is selectable at all and if 50 | it is not connected to a single-valued menu. 51 | If the item is connected to a posted menu, the menu 52 | will be redisplayed. 53 | 54 | Return Values : E_OK - success 55 | E_REQUEST_DENIED - not selectable or single valued menu 56 +--------------------------------------------------------------------------*/ 57 NCURSES_EXPORT(int) 58 set_item_value (ITEM *item, bool value) 59 { 60 MENU *menu; 61 62 if (item) 63 { 64 menu = item->imenu; 65 66 if ((!(item->opt & O_SELECTABLE)) || 67 (menu && (menu->opt & O_ONEVALUE))) 68 RETURN(E_REQUEST_DENIED); 69 70 if (item->value ^ value) 71 { 72 item->value = value ? TRUE : FALSE; 73 if (menu) 74 { 75 if (menu->status & _POSTED) 76 { 77 Move_And_Post_Item(menu,item); 78 _nc_Show_Menu(menu); 79 } 80 } 81 } 82 } 83 else 84 _nc_Default_Item.value = value; 85 86 RETURN(E_OK); 87 } 88 89 /*--------------------------------------------------------------------------- 90 | Facility : libnmenu 91 | Function : bool item_value(const ITEM *item) 92 | 93 | Description : Return the selection value of the item 94 | 95 | Return Values : TRUE - if item is selected 96 | FALSE - if item is not selected 97 +--------------------------------------------------------------------------*/ 98 NCURSES_EXPORT(bool) 99 item_value (const ITEM *item) 100 { 101 return ((Normalize_Item(item)->value) ? TRUE : FALSE); 102 } 103 104 /* m_item_val.c ends here */ 105