freebsd-skq/contrib/ncurses/menu/m_items.c
2014-02-28 23:48:13 +00:00

111 lines
4.9 KiB
C

/****************************************************************************
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****************************************************************************/
/****************************************************************************
* Author: Juergen Pfeifer, 1995,1997 *
****************************************************************************/
/***************************************************************************
* Module m_items *
* Connect and disconnect items to and from menus *
***************************************************************************/
#include "menu.priv.h"
MODULE_ID("$Id: m_items.c,v 1.17 2010/01/23 21:20:10 tom Exp $")
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int set_menu_items(MENU *menu, ITEM **items)
|
| Description : Sets the item pointer array connected to menu.
|
| Return Values : E_OK - success
| E_POSTED - menu is already posted
| E_CONNECTED - one or more items are already connected
| to another menu.
| E_BAD_ARGUMENT - An incorrect menu or item array was
| passed to the function
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
set_menu_items(MENU * menu, ITEM ** items)
{
T((T_CALLED("set_menu_items(%p,%p)"), (void *)menu, (void *)items));
if (!menu || (items && !(*items)))
RETURN(E_BAD_ARGUMENT);
if (menu->status & _POSTED)
RETURN(E_POSTED);
if (menu->items)
_nc_Disconnect_Items(menu);
if (items)
{
if (!_nc_Connect_Items(menu, items))
RETURN(E_CONNECTED);
}
menu->items = items;
RETURN(E_OK);
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : ITEM **menu_items(const MENU *menu)
|
| Description : Returns a pointer to the item pointer array of the menu
|
| Return Values : NULL on error
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(ITEM **)
menu_items(const MENU * menu)
{
T((T_CALLED("menu_items(%p)"), (const void *)menu));
returnItemPtr(menu ? menu->items : (ITEM **) 0);
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int item_count(const MENU *menu)
|
| Description : Get the number of items connected to the menu. If the
| menu pointer is NULL we return -1.
|
| Return Values : Number of items or -1 to indicate error.
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
item_count(const MENU * menu)
{
T((T_CALLED("item_count(%p)"), (const void *)menu));
returnCode(menu ? menu->nitems : -1);
}
/* m_items.c ends here */