1 /**************************************************************************** 2 * Copyright (c) 1998 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 27 ****************************************************************************/ 28 29 /**************************************************************************** 30 * Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997 * 31 ****************************************************************************/ 32 33 /*************************************************************************** 34 * Module m_item_opt * 35 * Menus item option routines * 36 ***************************************************************************/ 37 38 #include "menu.priv.h" 39 40 MODULE_ID("$Id: m_item_opt.c,v 1.10 1999/05/16 17:25:52 juergen Exp $") 41 42 /*--------------------------------------------------------------------------- 43 | Facility : libnmenu 44 | Function : int set_item_opts(ITEM *item, Item_Options opts) 45 | 46 | Description : Set the options of the item. If there are relevant 47 | changes, the item is connected and the menu is posted, 48 | the menu will be redisplayed. 49 | 50 | Return Values : E_OK - success 51 | E_BAD_ARGUMENT - invalid item options 52 +--------------------------------------------------------------------------*/ 53 int set_item_opts(ITEM *item, Item_Options opts) 54 { 55 opts &= ALL_ITEM_OPTS; 56 57 if (opts & ~ALL_ITEM_OPTS) 58 RETURN(E_BAD_ARGUMENT); 59 60 if (item) 61 { 62 if (item->opt != opts) 63 { 64 MENU *menu = item->imenu; 65 66 item->opt = opts; 67 68 if ((!(opts & O_SELECTABLE)) && item->value) 69 item->value = FALSE; 70 71 if (menu && (menu->status & _POSTED)) 72 { 73 Move_And_Post_Item( menu, item ); 74 _nc_Show_Menu(menu); 75 } 76 } 77 } 78 else 79 _nc_Default_Item.opt = opts; 80 81 RETURN(E_OK); 82 } 83 84 /*--------------------------------------------------------------------------- 85 | Facility : libnmenu 86 | Function : int item_opts_off(ITEM *item, Item_Options opts) 87 | 88 | Description : Switch of the options for this item. 89 | 90 | Return Values : E_OK - success 91 | E_BAD_ARGUMENT - invalid options 92 +--------------------------------------------------------------------------*/ 93 int item_opts_off(ITEM *item, Item_Options opts) 94 { 95 ITEM *citem = item; /* use a copy because set_item_opts must detect 96 NULL item itself to adjust its behaviour */ 97 98 if (opts & ~ALL_ITEM_OPTS) 99 RETURN(E_BAD_ARGUMENT); 100 else 101 { 102 Normalize_Item(citem); 103 opts = citem->opt & ~(opts & ALL_ITEM_OPTS); 104 return set_item_opts( item, opts ); 105 } 106 } 107 108 /*--------------------------------------------------------------------------- 109 | Facility : libnmenu 110 | Function : int item_opts_on(ITEM *item, Item_Options opts) 111 | 112 | Description : Switch on the options for this item. 113 | 114 | Return Values : E_OK - success 115 | E_BAD_ARGUMENT - invalid options 116 +--------------------------------------------------------------------------*/ 117 int item_opts_on(ITEM *item, Item_Options opts) 118 { 119 ITEM *citem = item; /* use a copy because set_item_opts must detect 120 NULL item itself to adjust its behaviour */ 121 122 opts &= ALL_ITEM_OPTS; 123 if (opts & ~ALL_ITEM_OPTS) 124 RETURN(E_BAD_ARGUMENT); 125 else 126 { 127 Normalize_Item(citem); 128 opts = citem->opt | opts; 129 return set_item_opts( item, opts ); 130 } 131 } 132 133 /*--------------------------------------------------------------------------- 134 | Facility : libnmenu 135 | Function : Item_Options item_opts(const ITEM *item) 136 | 137 | Description : Switch of the options for this item. 138 | 139 | Return Values : Items options 140 +--------------------------------------------------------------------------*/ 141 Item_Options item_opts(const ITEM * item) 142 { 143 return (ALL_ITEM_OPTS & Normalize_Item(item)->opt); 144 } 145 146 /* m_item_opt.c ends here */ 147