1/* $OpenBSD: m_item_cur.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 *                                                                          *
7 * Permission is hereby granted, free of charge, to any person obtaining a  *
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,   *
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
24 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
25 *                                                                          *
26 * Except as contained in this notice, the name(s) of the above copyright   *
27 * holders shall not be used in advertising or otherwise to promote the     *
28 * sale, use or other dealings in this Software without prior written       *
29 * authorization.                                                           *
30 ****************************************************************************/
31
32/****************************************************************************
33 *   Author:  Juergen Pfeifer, 1995,1997                                    *
34 ****************************************************************************/
35
36/***************************************************************************
37* Module m_item_cur                                                        *
38* Set and get current menus item                                           *
39***************************************************************************/
40
41#include "menu.priv.h"
42
43MODULE_ID("$Id: m_item_cur.c,v 1.8 2023/10/17 09:52:10 nicm Exp $")
44
45/*---------------------------------------------------------------------------
46|   Facility      :  libnmenu
47|   Function      :  int set_current_item(MENU *menu, const ITEM *item)
48|
49|   Description   :  Make the item the current item
50|
51|   Return Values :  E_OK                - success
52+--------------------------------------------------------------------------*/
53MENU_EXPORT(int)
54set_current_item(MENU *menu, ITEM *item)
55{
56  T((T_CALLED("set_current_item(%p,%p)"), (void *)menu, (void *)item));
57
58  if (menu && item && (item->imenu == menu))
59    {
60      if (menu->status & _IN_DRIVER)
61	RETURN(E_BAD_STATE);
62
63      assert(menu->curitem);
64      if (item != menu->curitem)
65	{
66	  if (menu->status & _LINK_NEEDED)
67	    {
68	      /*
69	       * Items are available, but they are not linked together.
70	       * So we have to link here.
71	       */
72	      _nc_Link_Items(menu);
73	    }
74	  assert(menu->pattern);
75	  Reset_Pattern(menu);
76	  /* adjust the window to make item visible and update the menu */
77	  Adjust_Current_Item(menu, menu->toprow, item);
78	}
79    }
80  else
81    RETURN(E_BAD_ARGUMENT);
82
83  RETURN(E_OK);
84}
85
86/*---------------------------------------------------------------------------
87|   Facility      :  libnmenu
88|   Function      :  ITEM *current_item(const MENU *menu)
89|
90|   Description   :  Return the menus current item
91|
92|   Return Values :  Item pointer or NULL if failure
93+--------------------------------------------------------------------------*/
94MENU_EXPORT(ITEM *)
95current_item(const MENU *menu)
96{
97  T((T_CALLED("current_item(%p)"), (const void *)menu));
98  returnItem((menu && menu->items) ? menu->curitem : (ITEM *)0);
99}
100
101/*---------------------------------------------------------------------------
102|   Facility      :  libnmenu
103|   Function      :  int item_index(const ITEM *)
104|
105|   Description   :  Return the logical index of this item.
106|
107|   Return Values :  The index or ERR if this is an invalid item pointer
108+--------------------------------------------------------------------------*/
109MENU_EXPORT(int)
110item_index(const ITEM *item)
111{
112  T((T_CALLED("item_index(%p)"), (const void *)item));
113  returnCode((item && item->imenu) ? item->index : ERR);
114}
115
116/* m_item_cur.c ends here */
117