1/****************************************************************************
2 * Copyright 2020 Thomas E. Dickey                                          *
3 * Copyright 1998-2004,2010 Free Software Foundation, Inc.                  *
4 *                                                                          *
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6 * copy of this software and associated documentation files (the            *
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11 * furnished to do so, subject to the following conditions:                 *
12 *                                                                          *
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14 * in all copies or substantial portions of the Software.                   *
15 *                                                                          *
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23 *                                                                          *
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28 ****************************************************************************/
29
30/****************************************************************************
31 *   Author:  Juergen Pfeifer, 1995,1997                                    *
32 ****************************************************************************/
33
34/***************************************************************************
35* Module m_item_val                                                        *
36* Set and get menus item values                                            *
37***************************************************************************/
38
39#include "menu.priv.h"
40
41MODULE_ID("$Id: m_item_val.c,v 1.16 2020/02/02 23:34:34 tom Exp $")
42
43/*---------------------------------------------------------------------------
44|   Facility      :  libnmenu
45|   Function      :  int set_item_value(ITEM *item, int value)
46|
47|   Description   :  Programmatically set the item's selection value. This is
48|                    only allowed if the item is selectable at all and if
49|                    it is not connected to a single-valued menu.
50|                    If the item is connected to a posted menu, the menu
51|                    will be redisplayed.
52|
53|   Return Values :  E_OK              - success
54|                    E_REQUEST_DENIED  - not selectable or single valued menu
55+--------------------------------------------------------------------------*/
56NCURSES_EXPORT(int)
57set_item_value(ITEM * item, bool value)
58{
59  MENU *menu;
60
61  T((T_CALLED("set_item_value(%p,%d)"), (void *)item, value));
62  if (item)
63    {
64      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+--------------------------------------------------------------------------*/
98NCURSES_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