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| Current File : //usr/src/contrib/ncurses/menu/m_item_vis.c |
/****************************************************************************
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/****************************************************************************
* Author: Juergen Pfeifer, 1995,1997 *
****************************************************************************/
/***************************************************************************
* Module m_item_vis *
* Tell if menu item is visible *
***************************************************************************/
#include "menu.priv.h"
MODULE_ID("$Id: m_item_vis.c,v 1.15 2004/12/25 21:40:09 tom Exp $")
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : bool item_visible(const ITEM *item)
|
| Description : A item is visible if it currently appears in the
| subwindow of a posted menu.
|
| Return Values : TRUE if visible
| FALSE if invisible
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(bool)
item_visible(const ITEM * item)
{
MENU *menu;
T((T_CALLED("item_visible(%p)"), item));
if (item &&
(menu = item->imenu) &&
(menu->status & _POSTED) &&
((menu->toprow + menu->arows) > (item->y)) &&
(item->y >= menu->toprow))
returnBool(TRUE);
else
returnBool(FALSE);
}
/* m_item_vis.c ends here */