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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_val *
* Set and get menus item values *
***************************************************************************/
#include "menu.priv.h"
MODULE_ID("$Id: m_item_val.c,v 1.9 2000/12/10 02:16:48 tom Exp $")
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int set_item_value(ITEM *item, int value)
|
| Description : Programmatically set the items selection value. This is
| only allowed if the item is selectable at all and if
| it is not connected to a single-valued menu.
| If the item is connected to a posted menu, the menu
| will be redisplayed.
|
| Return Values : E_OK - success
| E_REQUEST_DENIED - not selectable or single valued menu
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
set_item_value (ITEM *item, bool value)
{
MENU *menu;
if (item)
{
menu = item->imenu;
if ((!(item->opt & O_SELECTABLE)) ||
(menu && (menu->opt & O_ONEVALUE)))
RETURN(E_REQUEST_DENIED);
if (item->value ^ value)
{
item->value = value ? TRUE : FALSE;
if (menu)
{
if (menu->status & _POSTED)
{
Move_And_Post_Item(menu,item);
_nc_Show_Menu(menu);
}
}
}
}
else
_nc_Default_Item.value = value;
RETURN(E_OK);
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : bool item_value(const ITEM *item)
|
| Description : Return the selection value of the item
|
| Return Values : TRUE - if item is selected
| FALSE - if item is not selected
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(bool)
item_value (const ITEM *item)
{
return ((Normalize_Item(item)->value) ? TRUE : FALSE);
}
/* m_item_val.c ends here */
|
