source: trunk/ncurses/menu/m_item_opt.c@ 2622

Last change on this file since 2622 was 2621, checked in by bird, 20 years ago

GNU ncurses 5.5
File size: 6.1 KB
Line 
1/****************************************************************************
2 * Copyright (c) 1998-2003,2004 Free Software Foundation, Inc. *
3 * *
4 * Permission is hereby granted, free of charge, to any person obtaining a *
5 * copy of this software and associated documentation files (the *
6 * "Software"), to deal in the Software without restriction, including *
7 * without limitation the rights to use, copy, modify, merge, publish, *
8 * distribute, distribute with modifications, sublicense, and/or sell *
9 * copies of the Software, and to permit persons to whom the Software is *
10 * furnished to do so, subject to the following conditions: *
11 * *
12 * The above copyright notice and this permission notice shall be included *
13 * in all copies or substantial portions of the Software. *
14 * *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
22 * *
23 * Except as contained in this notice, the name(s) of the above copyright *
24 * holders shall not be used in advertising or otherwise to promote the *
25 * sale, use or other dealings in this Software without prior written *
26 * authorization. *
27 ****************************************************************************/
28
29/****************************************************************************
30 * Author: Juergen Pfeifer, 1995,1997 *
31 ****************************************************************************/
32
33/***************************************************************************
34* Module m_item_opt *
35* Menus item option routines *
36***************************************************************************/
37
38#include "menu.priv.h"
39
40MODULE_ID("$Id: m_item_opt.c,v 1.17 2004/12/25 21:32:54 tom Exp $")
41
42/*---------------------------------------------------------------------------
43| Facility : libnmenu
44| Function : int set_item_opts(ITEM *item, Item_Options opts)
45|
46| Description : Set the options of the item. If there are relevant
47| changes, the item is connected and the menu is posted,
48| the menu will be redisplayed.
49|
50| Return Values : E_OK - success
51| E_BAD_ARGUMENT - invalid item options
52+--------------------------------------------------------------------------*/
53NCURSES_EXPORT(int)
54set_item_opts(ITEM * item, Item_Options opts)
55{
56 T((T_CALLED("set_menu_opts(%p,%d)"), item, opts));
57
58 opts &= ALL_ITEM_OPTS;
59
60 if (opts & ~ALL_ITEM_OPTS)
61 RETURN(E_BAD_ARGUMENT);
62
63 if (item)
64 {
65 if (item->opt != opts)
66 {
67 MENU *menu = item->imenu;
68
69 item->opt = opts;
70
71 if ((!(opts & O_SELECTABLE)) && item->value)
72 item->value = FALSE;
73
74 if (menu && (menu->status & _POSTED))
75 {
76 Move_And_Post_Item(menu, item);
77 _nc_Show_Menu(menu);
78 }
79 }
80 }
81 else
82 _nc_Default_Item.opt = opts;
83
84 RETURN(E_OK);
85}
86
87/*---------------------------------------------------------------------------
88| Facility : libnmenu
89| Function : int item_opts_off(ITEM *item, Item_Options opts)
90|
91| Description : Switch of the options for this item.
92|
93| Return Values : E_OK - success
94| E_BAD_ARGUMENT - invalid options
95+--------------------------------------------------------------------------*/
96NCURSES_EXPORT(int)
97item_opts_off(ITEM * item, Item_Options opts)
98{
99 ITEM *citem = item; /* use a copy because set_item_opts must detect
100
101 NULL item itself to adjust its behavior */
102
103 T((T_CALLED("item_opts_off(%p,%d)"), item, opts));
104
105 if (opts & ~ALL_ITEM_OPTS)
106 RETURN(E_BAD_ARGUMENT);
107 else
108 {
109 Normalize_Item(citem);
110 opts = citem->opt & ~(opts & ALL_ITEM_OPTS);
111 returnCode(set_item_opts(item, opts));
112 }
113}
114
115/*---------------------------------------------------------------------------
116| Facility : libnmenu
117| Function : int item_opts_on(ITEM *item, Item_Options opts)
118|
119| Description : Switch on the options for this item.
120|
121| Return Values : E_OK - success
122| E_BAD_ARGUMENT - invalid options
123+--------------------------------------------------------------------------*/
124NCURSES_EXPORT(int)
125item_opts_on(ITEM * item, Item_Options opts)
126{
127 ITEM *citem = item; /* use a copy because set_item_opts must detect
128
129 NULL item itself to adjust its behavior */
130
131 T((T_CALLED("item_opts_on(%p,%d)"), item, opts));
132
133 opts &= ALL_ITEM_OPTS;
134 if (opts & ~ALL_ITEM_OPTS)
135 RETURN(E_BAD_ARGUMENT);
136 else
137 {
138 Normalize_Item(citem);
139 opts = citem->opt | opts;
140 returnCode(set_item_opts(item, opts));
141 }
142}
143
144/*---------------------------------------------------------------------------
145| Facility : libnmenu
146| Function : Item_Options item_opts(const ITEM *item)
147|
148| Description : Switch of the options for this item.
149|
150| Return Values : Items options
151+--------------------------------------------------------------------------*/
152NCURSES_EXPORT(Item_Options)
153item_opts(const ITEM * item)
154{
155 T((T_CALLED("item_opts(%p)"), item));
156 returnItemOpts(ALL_ITEM_OPTS & Normalize_Item(item)->opt);
157}
158
159/* m_item_opt.c ends here */
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