1 /* $OpenBSD: m_item_opt.c,v 1.8 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_opt * 37 * Menus item option routines * 38 ***************************************************************************/ 39 40 #include "menu.priv.h" 41 42 MODULE_ID("$From: m_item_opt.c,v 1.11 2000/12/10 02:16:48 tom Exp $") 43 44 /*--------------------------------------------------------------------------- 45 | Facility : libnmenu 46 | Function : int set_item_opts(ITEM *item, Item_Options opts) 47 | 48 | Description : Set the options of the item. If there are relevant 49 | changes, the item is connected and the menu is posted, 50 | the menu will be redisplayed. 51 | 52 | Return Values : E_OK - success 53 | E_BAD_ARGUMENT - invalid item options 54 +--------------------------------------------------------------------------*/ 55 NCURSES_EXPORT(int) 56 set_item_opts (ITEM *item, Item_Options opts) 57 { 58 opts &= ALL_ITEM_OPTS; 59 60 if (opts & ~ALL_ITEM_OPTS) 61 RETURN(E_BAD_ARGUMENT); 62 63 if (item) 64 { 65 if (item->opt != opts) 66 { 67 MENU *menu = item->imenu; 68 69 item->opt = opts; 70 71 if ((!(opts & O_SELECTABLE)) && item->value) 72 item->value = FALSE; 73 74 if (menu && (menu->status & _POSTED)) 75 { 76 Move_And_Post_Item( menu, item ); 77 _nc_Show_Menu(menu); 78 } 79 } 80 } 81 else 82 _nc_Default_Item.opt = opts; 83 84 RETURN(E_OK); 85 } 86 87 /*--------------------------------------------------------------------------- 88 | Facility : libnmenu 89 | Function : int item_opts_off(ITEM *item, Item_Options opts) 90 | 91 | Description : Switch of the options for this item. 92 | 93 | Return Values : E_OK - success 94 | E_BAD_ARGUMENT - invalid options 95 +--------------------------------------------------------------------------*/ 96 NCURSES_EXPORT(int) 97 item_opts_off (ITEM *item, Item_Options opts) 98 { 99 ITEM *citem = item; /* use a copy because set_item_opts must detect 100 NULL item itself to adjust its behaviour */ 101 102 if (opts & ~ALL_ITEM_OPTS) 103 RETURN(E_BAD_ARGUMENT); 104 else 105 { 106 Normalize_Item(citem); 107 opts = citem->opt & ~(opts & ALL_ITEM_OPTS); 108 return set_item_opts( item, opts ); 109 } 110 } 111 112 /*--------------------------------------------------------------------------- 113 | Facility : libnmenu 114 | Function : int item_opts_on(ITEM *item, Item_Options opts) 115 | 116 | Description : Switch on the options for this item. 117 | 118 | Return Values : E_OK - success 119 | E_BAD_ARGUMENT - invalid options 120 +--------------------------------------------------------------------------*/ 121 NCURSES_EXPORT(int) 122 item_opts_on (ITEM *item, Item_Options opts) 123 { 124 ITEM *citem = item; /* use a copy because set_item_opts must detect 125 NULL item itself to adjust its behaviour */ 126 127 opts &= ALL_ITEM_OPTS; 128 if (opts & ~ALL_ITEM_OPTS) 129 RETURN(E_BAD_ARGUMENT); 130 else 131 { 132 Normalize_Item(citem); 133 opts = citem->opt | opts; 134 return set_item_opts( item, opts ); 135 } 136 } 137 138 /*--------------------------------------------------------------------------- 139 | Facility : libnmenu 140 | Function : Item_Options item_opts(const ITEM *item) 141 | 142 | Description : Switch of the options for this item. 143 | 144 | Return Values : Items options 145 +--------------------------------------------------------------------------*/ 146 NCURSES_EXPORT(Item_Options) 147 item_opts (const ITEM * item) 148 { 149 return (ALL_ITEM_OPTS & Normalize_Item(item)->opt); 150 } 151 152 /* m_item_opt.c ends here */ 153