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| Current File : //usr/src/contrib/ncurses/menu/m_item_val.c |
/****************************************************************************
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/****************************************************************************
* Author: Juergen Pfeifer, 1995,1997 *
****************************************************************************/
/***************************************************************************
* Module m_item_val *
* Set and get menus item values *
***************************************************************************/
#include "menu.priv.h"
MODULE_ID("$Id: m_item_val.c,v 1.14 2004/12/11 23:29:34 tom Exp $")
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int set_item_value(ITEM *item, int value)
|
| Description : Programmatically set the item's 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;
T((T_CALLED("set_item_value(%p,%d)"), item, value));
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)
{
T((T_CALLED("item_value(%p)"), item));
returnBool((Normalize_Item(item)->value) ? TRUE : FALSE);
}
/* m_item_val.c ends here */