1 /****************************************************************************
2 * Copyright (c) 1998,2000 Free Software Foundation, Inc. *
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: *
12 * The above copyright notice and this permission notice shall be included *
13 * in all copies or substantial portions of the Software. *
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. *
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 *
27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Juergen Pfeifer, 1995,1997 *
31 * Contact: http://www.familiepfeifer.de/Contact.aspx?Lang=en *
32 ****************************************************************************/
34 /***************************************************************************
36 * Set and get current menus item *
37 ***************************************************************************/
39 #include "menu.priv.h"
41 MODULE_ID("$Id: m_item_cur.c,v 1.13 2002/07/06 15:22:16 juergen Exp $")
43 /*---------------------------------------------------------------------------
45 | Function : int set_current_item(MENU *menu, const ITEM *item)
47 | Description : Make the item the current item
49 | Return Values : E_OK - success
50 +--------------------------------------------------------------------------*/
52 set_current_item (MENU * menu, ITEM * item)
54 if (menu && item && (item->imenu==menu))
56 if ( menu->status & _IN_DRIVER )
59 assert( menu->curitem );
60 if (item != menu->curitem)
62 if (menu->status & _LINK_NEEDED)
65 * Items are available, but they are not linked together.
66 * So we have to link here.
70 assert(menu->pattern);
72 /* adjust the window to make item visible and update the menu */
73 Adjust_Current_Item(menu,menu->toprow,item);
77 RETURN(E_BAD_ARGUMENT);
82 /*---------------------------------------------------------------------------
84 | Function : ITEM *current_item(const MENU *menu)
86 | Description : Return the menus current item
88 | Return Values : Item pointer or NULL if failure
89 +--------------------------------------------------------------------------*/
90 NCURSES_EXPORT(ITEM *)
91 current_item (const MENU * menu)
93 return (menu && menu->items) ? menu->curitem : (ITEM *)0;
96 /*---------------------------------------------------------------------------
98 | Function : int item_index(const ITEM *)
100 | Description : Return the logical index of this item.
102 | Return Values : The index or ERR if this is an invalid item pointer
103 +--------------------------------------------------------------------------*/
105 item_index (const ITEM *item)
107 return (item && item->imenu) ? item->index : ERR;
110 /* m_item_cur.c ends here */