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/***************************************************************************
* COPYRIGHT NOTICE *
****************************************************************************
* ncurses is copyright (C) 1992-1995 *
* Zeyd M. Ben-Halim *
* zmbenhal@netcom.com *
* Eric S. Raymond *
* esr@snark.thyrsus.com *
* *
* Permission is hereby granted to reproduce and distribute ncurses *
* by any means and for any fee, whether alone or as part of a *
* larger distribution, in source or in binary form, PROVIDED *
* this notice is included with any such distribution, and is not *
* removed from any of its header files. Mention of ncurses in any *
* applications linked with it is highly appreciated. *
* *
* ncurses comes AS IS with no warranty, implied or expressed. *
* *
***************************************************************************/
/***************************************************************************
* Module menu_item_opt *
* Menus item option routines *
***************************************************************************/
#include "menu.priv.h"
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int set_item_opts(ITEM *item, Item_Options opts)
|
| Description : Set the options of the item. If there are relevant
| changes, the item is connected and the menu is posted,
| the menu will be redisplayed.
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - invalid item options
+--------------------------------------------------------------------------*/
int set_item_opts(ITEM *item, Item_Options opts)
{
if (opts & ~ALL_ITEM_OPTS)
RETURN(E_BAD_ARGUMENT);
if (item)
{
if (item->opt != opts)
{
MENU *menu = item->imenu;
item->opt = opts;
if ((!(opts & O_SELECTABLE)) && item->value)
item->value = FALSE;
if (menu && (menu->status & _POSTED))
{
Move_And_Post_Item( menu, item );
_nc_Show_Menu(menu);
}
}
}
else
_nc_Default_Item.opt = opts;
RETURN(E_OK);
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int item_opts_off(ITEM *item, Item_Options opts)
|
| Description : Switch of the options for this item.
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - invalid options
+--------------------------------------------------------------------------*/
int item_opts_off(ITEM *item, Item_Options opts)
{
ITEM *citem = item; /* use a copy because set_item_opts must detect
NULL item itself to adjust its behaviour */
if (opts & ~ALL_ITEM_OPTS)
RETURN(E_BAD_ARGUMENT);
else
{
Normalize_Item(citem);
opts = citem->opt & ~opts;
return set_item_opts( item, opts );
}
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int item_opts_on(ITEM *item, Item_Options opts)
|
| Description : Switch on the options for this item.
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - invalid options
+--------------------------------------------------------------------------*/
int item_opts_on(ITEM *item, Item_Options opts)
{
ITEM *citem = item; /* use a copy because set_item_opts must detect
NULL item itself to adjust its behaviour */
if (opts & ~ALL_ITEM_OPTS)
RETURN(E_BAD_ARGUMENT);
else
{
Normalize_Item(citem);
opts = citem->opt | opts;
return set_item_opts( item, opts );
}
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : Item_Options item_opts(const ITEM *item)
|
| Description : Switch of the options for this item.
|
| Return Values : Items options
+--------------------------------------------------------------------------*/
Item_Options item_opts(const ITEM * item)
{
return (ALL_ITEM_OPTS & Normalize_Item(item)->opt);
}
/* m_item_opt.c ends here */
|
