1/****************************************************************************
2 * Copyright 2020 Thomas E. Dickey                                          *
3 * Copyright 1998-2004,2010 Free Software Foundation, Inc.                  *
4 *                                                                          *
5 * Permission is hereby granted, free of charge, to any person obtaining a  *
6 * copy of this software and associated documentation files (the            *
7 * "Software"), to deal in the Software without restriction, including      *
8 * without limitation the rights to use, copy, modify, merge, publish,      *
9 * distribute, distribute with modifications, sublicense, and/or sell       *
10 * copies of the Software, and to permit persons to whom the Software is    *
11 * furnished to do so, subject to the following conditions:                 *
12 *                                                                          *
13 * The above copyright notice and this permission notice shall be included  *
14 * in all copies or substantial portions of the Software.                   *
15 *                                                                          *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
23 *                                                                          *
24 * Except as contained in this notice, the name(s) of the above copyright   *
25 * holders shall not be used in advertising or otherwise to promote the     *
26 * sale, use or other dealings in this Software without prior written       *
27 * authorization.                                                           *
28 ****************************************************************************/
29
30/****************************************************************************
31 *   Author:  Juergen Pfeifer, 1995,1997                                    *
32 ****************************************************************************/
33
34/***************************************************************************
35* Module m_item_opt                                                        *
36* Menus item option routines                                               *
37***************************************************************************/
38
39#include "menu.priv.h"
40
41MODULE_ID("$Id: m_item_opt.c,v 1.19 2020/02/02 23:34:34 tom Exp $")
42
43/*---------------------------------------------------------------------------
44|   Facility      :  libnmenu
45|   Function      :  int set_item_opts(ITEM *item, Item_Options opts)
46|
47|   Description   :  Set the options of the item. If there are relevant
48|                    changes, the item is connected and the menu is posted,
49|                    the menu will be redisplayed.
50|
51|   Return Values :  E_OK            - success
52|                    E_BAD_ARGUMENT  - invalid item options
53+--------------------------------------------------------------------------*/
54NCURSES_EXPORT(int)
55set_item_opts(ITEM * item, Item_Options opts)
56{
57  T((T_CALLED("set_menu_opts(%p,%d)"), (void *)item, opts));
58
59  opts &= ALL_ITEM_OPTS;
60
61  if (opts & ~ALL_ITEM_OPTS)
62    RETURN(E_BAD_ARGUMENT);
63
64  if (item)
65    {
66      if (item->opt != opts)
67	{
68	  MENU *menu = item->imenu;
69
70	  item->opt = opts;
71
72	  if ((!(opts & O_SELECTABLE)) && item->value)
73	    item->value = FALSE;
74
75	  if (menu && (menu->status & _POSTED))
76	    {
77	      Move_And_Post_Item(menu, item);
78	      _nc_Show_Menu(menu);
79	    }
80	}
81    }
82  else
83    _nc_Default_Item.opt = opts;
84
85  RETURN(E_OK);
86}
87
88/*---------------------------------------------------------------------------
89|   Facility      :  libnmenu
90|   Function      :  int item_opts_off(ITEM *item, Item_Options opts)
91|
92|   Description   :  Switch of the options for this item.
93|
94|   Return Values :  E_OK            - success
95|                    E_BAD_ARGUMENT  - invalid options
96+--------------------------------------------------------------------------*/
97NCURSES_EXPORT(int)
98item_opts_off(ITEM * item, Item_Options opts)
99{
100  ITEM *citem = item;		/* use a copy because set_item_opts must detect
101
102				   NULL item itself to adjust its behavior */
103
104  T((T_CALLED("item_opts_off(%p,%d)"), (void *)item, opts));
105
106  if (opts & ~ALL_ITEM_OPTS)
107    RETURN(E_BAD_ARGUMENT);
108  else
109    {
110      Normalize_Item(citem);
111      opts = citem->opt & ~(opts & ALL_ITEM_OPTS);
112      returnCode(set_item_opts(item, opts));
113    }
114}
115
116/*---------------------------------------------------------------------------
117|   Facility      :  libnmenu
118|   Function      :  int item_opts_on(ITEM *item, Item_Options opts)
119|
120|   Description   :  Switch on the options for this item.
121|
122|   Return Values :  E_OK            - success
123|                    E_BAD_ARGUMENT  - invalid options
124+--------------------------------------------------------------------------*/
125NCURSES_EXPORT(int)
126item_opts_on(ITEM * item, Item_Options opts)
127{
128  ITEM *citem = item;		/* use a copy because set_item_opts must detect
129
130				   NULL item itself to adjust its behavior */
131
132  T((T_CALLED("item_opts_on(%p,%d)"), (void *)item, opts));
133
134  opts &= ALL_ITEM_OPTS;
135  if (opts & ~ALL_ITEM_OPTS)
136    RETURN(E_BAD_ARGUMENT);
137  else
138    {
139      Normalize_Item(citem);
140      opts = citem->opt | opts;
141      returnCode(set_item_opts(item, opts));
142    }
143}
144
145/*---------------------------------------------------------------------------
146|   Facility      :  libnmenu
147|   Function      :  Item_Options item_opts(const ITEM *item)
148|
149|   Description   :  Switch of the options for this item.
150|
151|   Return Values :  Items options
152+--------------------------------------------------------------------------*/
153NCURSES_EXPORT(Item_Options)
154item_opts(const ITEM * item)
155{
156  T((T_CALLED("item_opts(%p)"), (const void *)item));
157  returnItemOpts(ALL_ITEM_OPTS & Normalize_Item(item)->opt);
158}
159
160/* m_item_opt.c ends here */
161