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/****************************************************************************
* Copyright (c) 1998,2000 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, distribute with modifications, sublicense, and/or sell *
* copies of the Software, and to permit persons to whom the Software is *
* furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included *
* in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
* *
* Except as contained in this notice, the name(s) of the above copyright *
* holders shall not be used in advertising or otherwise to promote the *
* sale, use or other dealings in this Software without prior written *
* authorization. *
****************************************************************************/
/****************************************************************************
* Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997 *
****************************************************************************/
/***************************************************************************
* Module m_item_cur *
* Set and get current menus item *
***************************************************************************/
#include "menu.priv.h"
MODULE_ID("$Id: m_item_cur.c,v 1.12 2000/12/10 02:16:48 tom Exp $")
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int set_current_item(MENU *menu, const ITEM *item)
|
| Description : Make the item the current item
|
| Return Values : E_OK - success
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
set_current_item (MENU * menu, ITEM * item)
{
if (menu && item && (item->imenu==menu))
{
if ( menu->status & _IN_DRIVER )
RETURN(E_BAD_STATE);
assert( menu->curitem );
if (item != menu->curitem)
{
if (menu->status & _LINK_NEEDED)
{
/*
* Items are available, but they are not linked together.
* So we have to link here.
*/
_nc_Link_Items(menu);
}
assert(menu->pattern);
Reset_Pattern(menu);
/* adjust the window to make item visible and update the menu */
Adjust_Current_Item(menu,menu->toprow,item);
}
}
else
RETURN(E_BAD_ARGUMENT);
RETURN(E_OK);
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : ITEM *current_item(const MENU *menu)
|
| Description : Return the menus current item
|
| Return Values : Item pointer or NULL if failure
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(ITEM *)
current_item (const MENU * menu)
{
return (menu && menu->items) ? menu->curitem : (ITEM *)0;
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int item_index(const ITEM *)
|
| Description : Return the logical index of this item.
|
| Return Values : The index or ERR if this is an invalid item pointer
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
item_index (const ITEM *item)
{
return (item && item->imenu) ? item->index : ERR;
}
/* m_item_cur.c ends here */
|
