1 /* $OpenBSD: m_opts.c,v 1.9 2023/10/17 09:52:10 nicm Exp $ */
2
3 /****************************************************************************
4 * Copyright 2020 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_opts *
38 * Menus option routines *
39 ***************************************************************************/
40
41 #include "menu.priv.h"
42
43 MODULE_ID("$Id: m_opts.c,v 1.9 2023/10/17 09:52:10 nicm Exp $")
44
45 /*---------------------------------------------------------------------------
46 | Facility : libnmenu
47 | Function : int set_menu_opts(MENU *menu, Menu_Options opts)
48 |
49 | Description : Set the options for this menu. If the new settings
50 | end up in a change of the geometry of the menu, it
51 | will be recalculated. This operation is forbidden if
52 | the menu is already posted.
53 |
54 | Return Values : E_OK - success
55 | E_BAD_ARGUMENT - invalid menu options
56 | E_POSTED - menu is already posted
57 +--------------------------------------------------------------------------*/
MENU_EXPORT(int)58 MENU_EXPORT(int)
59 set_menu_opts(MENU *menu, Menu_Options opts)
60 {
61 T((T_CALLED("set_menu_opts(%p,%d)"), (void *)menu, opts));
62
63 opts &= ALL_MENU_OPTS;
64
65 if (opts & ~ALL_MENU_OPTS)
66 RETURN(E_BAD_ARGUMENT);
67
68 if (menu)
69 {
70 if (menu->status & _POSTED)
71 RETURN(E_POSTED);
72
73 if ((opts & O_ROWMAJOR) != (menu->opt & O_ROWMAJOR))
74 {
75 /* we need this only if the layout really changed ... */
76 if (menu->items && menu->items[0])
77 {
78 menu->toprow = 0;
79 menu->curitem = menu->items[0];
80 assert(menu->curitem);
81 set_menu_format(menu, menu->frows, menu->fcols);
82 }
83 }
84
85 menu->opt = opts;
86
87 if (opts & O_ONEVALUE)
88 {
89 ITEM **item;
90
91 if (((item = menu->items) != (ITEM **)0))
92 for (; *item; item++)
93 (*item)->value = FALSE;
94 }
95
96 if (opts & O_SHOWDESC) /* this also changes the geometry */
97 _nc_Calculate_Item_Length_and_Width(menu);
98 }
99 else
100 _nc_Default_Menu.opt = opts;
101
102 RETURN(E_OK);
103 }
104
105 /*---------------------------------------------------------------------------
106 | Facility : libnmenu
107 | Function : int menu_opts_off(MENU *menu, Menu_Options opts)
108 |
109 | Description : Switch off the options for this menu. If the new settings
110 | end up in a change of the geometry of the menu, it
111 | will be recalculated. This operation is forbidden if
112 | the menu is already posted.
113 |
114 | Return Values : E_OK - success
115 | E_BAD_ARGUMENT - invalid options
116 | E_POSTED - menu is already posted
117 +--------------------------------------------------------------------------*/
118 MENU_EXPORT(int)
menu_opts_off(MENU * menu,Menu_Options opts)119 menu_opts_off(MENU *menu, Menu_Options opts)
120 {
121 MENU *cmenu = menu; /* use a copy because set_menu_opts must detect
122
123 NULL menu itself to adjust its behavior */
124
125 T((T_CALLED("menu_opts_off(%p,%d)"), (void *)menu, opts));
126
127 opts &= ALL_MENU_OPTS;
128 if (opts & ~ALL_MENU_OPTS)
129 RETURN(E_BAD_ARGUMENT);
130 else
131 {
132 Normalize_Menu(cmenu);
133 opts = cmenu->opt & ~opts;
134 returnCode(set_menu_opts(menu, opts));
135 }
136 }
137
138 /*---------------------------------------------------------------------------
139 | Facility : libnmenu
140 | Function : int menu_opts_on(MENU *menu, Menu_Options opts)
141 |
142 | Description : Switch on the options for this menu. If the new settings
143 | end up in a change of the geometry of the menu, it
144 | will be recalculated. This operation is forbidden if
145 | the menu is already posted.
146 |
147 | Return Values : E_OK - success
148 | E_BAD_ARGUMENT - invalid menu options
149 | E_POSTED - menu is already posted
150 +--------------------------------------------------------------------------*/
151 MENU_EXPORT(int)
menu_opts_on(MENU * menu,Menu_Options opts)152 menu_opts_on(MENU *menu, Menu_Options opts)
153 {
154 MENU *cmenu = menu; /* use a copy because set_menu_opts must detect
155
156 NULL menu itself to adjust its behavior */
157
158 T((T_CALLED("menu_opts_on(%p,%d)"), (void *)menu, opts));
159
160 opts &= ALL_MENU_OPTS;
161 if (opts & ~ALL_MENU_OPTS)
162 RETURN(E_BAD_ARGUMENT);
163 else
164 {
165 Normalize_Menu(cmenu);
166 opts = cmenu->opt | opts;
167 returnCode(set_menu_opts(menu, opts));
168 }
169 }
170
171 /*---------------------------------------------------------------------------
172 | Facility : libnmenu
173 | Function : Menu_Options menu_opts(const MENU *menu)
174 |
175 | Description : Return the options for this menu.
176 |
177 | Return Values : Menu options
178 +--------------------------------------------------------------------------*/
179 MENU_EXPORT(Menu_Options)
menu_opts(const MENU * menu)180 menu_opts(const MENU *menu)
181 {
182 T((T_CALLED("menu_opts(%p)"), (const void *)menu));
183 returnMenuOpts(ALL_MENU_OPTS & Normalize_Menu(menu)->opt);
184 }
185
186 /* m_opts.c ends here */
187