1/* $OpenBSD: m_item_val.c,v 1.8 2023/10/17 09:52:10 nicm Exp $ */
2
3/****************************************************************************
4 * Copyright 2020,2021 Thomas E. Dickey                                     *
5 * Copyright 1998-2004,2010 Free Software Foundation, Inc.                  *
6 *                                                                          *
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8 * copy of this software and associated documentation files (the            *
9 * "Software"), to deal in the Software without restriction, including      *
10 * without limitation the rights to use, copy, modify, merge, publish,      *
11 * distribute, distribute with modifications, sublicense, and/or sell       *
12 * copies of the Software, and to permit persons to whom the Software is    *
13 * furnished to do so, subject to the following conditions:                 *
14 *                                                                          *
15 * The above copyright notice and this permission notice shall be included  *
16 * in all copies or substantial portions of the Software.                   *
17 *                                                                          *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
21 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
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25 *                                                                          *
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27 * holders shall not be used in advertising or otherwise to promote the     *
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29 * authorization.                                                           *
30 ****************************************************************************/
31
32/****************************************************************************
33 *   Author:  Juergen Pfeifer, 1995,1997                                    *
34 ****************************************************************************/
35
36/***************************************************************************
37* Module m_item_val                                                        *
38* Set and get menus item values                                            *
39***************************************************************************/
40
41#include "menu.priv.h"
42
43MODULE_ID("$Id: m_item_val.c,v 1.8 2023/10/17 09:52:10 nicm Exp $")
44
45/*---------------------------------------------------------------------------
46|   Facility      :  libnmenu
47|   Function      :  int set_item_value(ITEM *item, int value)
48|
49|   Description   :  Programmatically set the item's selection value. This is
50|                    only allowed if the item is selectable at all and if
51|                    it is not connected to a single-valued menu.
52|                    If the item is connected to a posted menu, the menu
53|                    will be redisplayed.
54|
55|   Return Values :  E_OK              - success
56|                    E_REQUEST_DENIED  - not selectable or single valued menu
57+--------------------------------------------------------------------------*/
58MENU_EXPORT(int)
59set_item_value(ITEM *item, bool value)
60{
61  T((T_CALLED("set_item_value(%p,%d)"), (void *)item, value));
62  if (item)
63    {
64      MENU *menu = item->imenu;
65
66      if ((!(item->opt & O_SELECTABLE)) ||
67	  (menu && (menu->opt & O_ONEVALUE)))
68	RETURN(E_REQUEST_DENIED);
69
70      if (item->value ^ value)
71	{
72	  item->value = value ? TRUE : FALSE;
73	  if (menu)
74	    {
75	      if (menu->status & _POSTED)
76		{
77		  Move_And_Post_Item(menu, item);
78		  _nc_Show_Menu(menu);
79		}
80	    }
81	}
82    }
83  else
84    _nc_Default_Item.value = value;
85
86  RETURN(E_OK);
87}
88
89/*---------------------------------------------------------------------------
90|   Facility      :  libnmenu
91|   Function      :  bool item_value(const ITEM *item)
92|
93|   Description   :  Return the selection value of the item
94|
95|   Return Values :  TRUE   - if item is selected
96|                    FALSE  - if item is not selected
97+--------------------------------------------------------------------------*/
98MENU_EXPORT(bool)
99item_value(const ITEM *item)
100{
101  T((T_CALLED("item_value(%p)"), (const void *)item));
102  returnBool((Normalize_Item(item)->value) ? TRUE : FALSE);
103}
104
105/* m_item_val.c ends here */
106