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_cur * 35 * Set and get current menus item * 36 ***************************************************************************/ 37 38 #include "menu.priv.h" 39 40 MODULE_ID("$Id: m_item_cur.c,v 1.11 1999/05/16 17:25:34 juergen Exp $") 41 42 /*--------------------------------------------------------------------------- 43 | Facility : libnmenu 44 | Function : int set_current_item(MENU *menu, const ITEM *item) 45 | 46 | Description : Make the item the current item 47 | 48 | Return Values : E_OK - success 49 +--------------------------------------------------------------------------*/ 50 int set_current_item(MENU * menu, ITEM * item) 51 { 52 if (menu && item && (item->imenu==menu)) 53 { 54 if ( menu->status & _IN_DRIVER ) 55 RETURN(E_BAD_STATE); 56 57 assert( menu->curitem ); 58 if (item != menu->curitem) 59 { 60 if (menu->status & _LINK_NEEDED) 61 { 62 /* 63 * Items are available, but they are not linked together. 64 * So we have to link here. 65 */ 66 _nc_Link_Items(menu); 67 } 68 assert(menu->pattern); 69 Reset_Pattern(menu); 70 /* adjust the window to make item visible and update the menu */ 71 Adjust_Current_Item(menu,menu->toprow,item); 72 } 73 } 74 else 75 RETURN(E_BAD_ARGUMENT); 76 77 RETURN(E_OK); 78 } 79 80 /*--------------------------------------------------------------------------- 81 | Facility : libnmenu 82 | Function : ITEM *current_item(const MENU *menu) 83 | 84 | Description : Return the menus current item 85 | 86 | Return Values : Item pointer or NULL if failure 87 +--------------------------------------------------------------------------*/ 88 ITEM *current_item(const MENU * menu) 89 { 90 return (menu && menu->items) ? menu->curitem : (ITEM *)0; 91 } 92 93 /*--------------------------------------------------------------------------- 94 | Facility : libnmenu 95 | Function : int item_index(const ITEM *) 96 | 97 | Description : Return the logical index of this item. 98 | 99 | Return Values : The index or ERR if this is an invalid item pointer 100 +--------------------------------------------------------------------------*/ 101 int item_index(const ITEM *item) 102 { 103 return (item && item->imenu) ? item->index : ERR; 104 } 105 106 /* m_item_cur.c ends here */ 107