1 /****************************************************************************
2 * Copyright 2020,2021 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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10 * copies of the Software, and to permit persons to whom the Software is *
11 * furnished to do so, subject to the following conditions: *
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13 * The above copyright notice and this permission notice shall be included *
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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 *
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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
41 MODULE_ID("$Id: m_item_opt.c,v 1.22 2021/06/17 21:20:30 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 +--------------------------------------------------------------------------*/
MENU_EXPORT(int)54 MENU_EXPORT(int)
55 set_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 +--------------------------------------------------------------------------*/
97 MENU_EXPORT(int)
item_opts_off(ITEM * item,Item_Options opts)98 item_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 +--------------------------------------------------------------------------*/
125 MENU_EXPORT(int)
item_opts_on(ITEM * item,Item_Options opts)126 item_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 +--------------------------------------------------------------------------*/
153 MENU_EXPORT(Item_Options)
item_opts(const ITEM * item)154 item_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