1 /* $OpenBSD: m_item_cur.c,v 1.7 2010/01/12 23:22:08 nicm Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998-2003,2004 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, 1995,1997 * 33 ****************************************************************************/ 34 35 /*************************************************************************** 36 * Module m_item_cur * 37 * Set and get current menus item * 38 ***************************************************************************/ 39 40 #include "menu.priv.h" 41 42 MODULE_ID("$Id: m_item_cur.c,v 1.7 2010/01/12 23:22:08 nicm Exp $") 43 44 /*--------------------------------------------------------------------------- 45 | Facility : libnmenu 46 | Function : int set_current_item(MENU *menu, const ITEM *item) 47 | 48 | Description : Make the item the current item 49 | 50 | Return Values : E_OK - success 51 +--------------------------------------------------------------------------*/ 52 NCURSES_EXPORT(int) 53 set_current_item(MENU * menu, ITEM * item) 54 { 55 T((T_CALLED("set_current_item(%p,%p)"), menu, item)); 56 57 if (menu && item && (item->imenu == menu)) 58 { 59 if (menu->status & _IN_DRIVER) 60 RETURN(E_BAD_STATE); 61 62 assert(menu->curitem); 63 if (item != menu->curitem) 64 { 65 if (menu->status & _LINK_NEEDED) 66 { 67 /* 68 * Items are available, but they are not linked together. 69 * So we have to link here. 70 */ 71 _nc_Link_Items(menu); 72 } 73 assert(menu->pattern); 74 Reset_Pattern(menu); 75 /* adjust the window to make item visible and update the menu */ 76 Adjust_Current_Item(menu, menu->toprow, item); 77 } 78 } 79 else 80 RETURN(E_BAD_ARGUMENT); 81 82 RETURN(E_OK); 83 } 84 85 /*--------------------------------------------------------------------------- 86 | Facility : libnmenu 87 | Function : ITEM *current_item(const MENU *menu) 88 | 89 | Description : Return the menus current item 90 | 91 | Return Values : Item pointer or NULL if failure 92 +--------------------------------------------------------------------------*/ 93 NCURSES_EXPORT(ITEM *) 94 current_item(const MENU * menu) 95 { 96 T((T_CALLED("current_item(%p)"), menu)); 97 returnItem((menu && menu->items) ? menu->curitem : (ITEM *) 0); 98 } 99 100 /*--------------------------------------------------------------------------- 101 | Facility : libnmenu 102 | Function : int item_index(const ITEM *) 103 | 104 | Description : Return the logical index of this item. 105 | 106 | Return Values : The index or ERR if this is an invalid item pointer 107 +--------------------------------------------------------------------------*/ 108 NCURSES_EXPORT(int) 109 item_index(const ITEM * item) 110 { 111 T((T_CALLED("item_index(%p)"), item)); 112 returnCode((item && item->imenu) ? item->index : ERR); 113 } 114 115 /* m_item_cur.c ends here */ 116