1 /**************************************************************************** 2 * Copyright 2020 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_cur * 36 * Set and get current menus item * 37 ***************************************************************************/ 38 39 #include "menu.priv.h" 40 41 MODULE_ID("$Id: m_item_cur.c,v 1.21 2020/12/12 00:38:02 tom Exp $") 42 43 /*--------------------------------------------------------------------------- 44 | Facility : libnmenu 45 | Function : int set_current_item(MENU *menu, const ITEM *item) 46 | 47 | Description : Make the item the current item 48 | 49 | Return Values : E_OK - success 50 +--------------------------------------------------------------------------*/ 51 MENU_EXPORT(int) 52 set_current_item(MENU *menu, ITEM *item) 53 { 54 T((T_CALLED("set_current_item(%p,%p)"), (void *)menu, (void *)item)); 55 56 if (menu && item && (item->imenu == menu)) 57 { 58 if (menu->status & _IN_DRIVER) 59 RETURN(E_BAD_STATE); 60 61 assert(menu->curitem); 62 if (item != menu->curitem) 63 { 64 if (menu->status & _LINK_NEEDED) 65 { 66 /* 67 * Items are available, but they are not linked together. 68 * So we have to link here. 69 */ 70 _nc_Link_Items(menu); 71 } 72 assert(menu->pattern); 73 Reset_Pattern(menu); 74 /* adjust the window to make item visible and update the menu */ 75 Adjust_Current_Item(menu, menu->toprow, item); 76 } 77 } 78 else 79 RETURN(E_BAD_ARGUMENT); 80 81 RETURN(E_OK); 82 } 83 84 /*--------------------------------------------------------------------------- 85 | Facility : libnmenu 86 | Function : ITEM *current_item(const MENU *menu) 87 | 88 | Description : Return the menus current item 89 | 90 | Return Values : Item pointer or NULL if failure 91 +--------------------------------------------------------------------------*/ 92 MENU_EXPORT(ITEM *) 93 current_item(const MENU *menu) 94 { 95 T((T_CALLED("current_item(%p)"), (const void *)menu)); 96 returnItem((menu && menu->items) ? menu->curitem : (ITEM *)0); 97 } 98 99 /*--------------------------------------------------------------------------- 100 | Facility : libnmenu 101 | Function : int item_index(const ITEM *) 102 | 103 | Description : Return the logical index of this item. 104 | 105 | Return Values : The index or ERR if this is an invalid item pointer 106 +--------------------------------------------------------------------------*/ 107 MENU_EXPORT(int) 108 item_index(const ITEM *item) 109 { 110 T((T_CALLED("item_index(%p)"), (const void *)item)); 111 returnCode((item && item->imenu) ? item->index : ERR); 112 } 113 114 /* m_item_cur.c ends here */ 115