1 /****************************************************************************
2 * Copyright (c) 1998-2004,2010 Free Software Foundation, Inc. *
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10 * furnished to do so, subject to the following conditions: *
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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
40 MODULE_ID("$Id: m_item_opt.c,v 1.18 2010/01/23 21:20:10 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 +--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)53 NCURSES_EXPORT(int)
54 set_item_opts(ITEM * item, Item_Options opts)
55 {
56 T((T_CALLED("set_menu_opts(%p,%d)"), (void *)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 +--------------------------------------------------------------------------*/
96 NCURSES_EXPORT(int)
item_opts_off(ITEM * item,Item_Options opts)97 item_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)"), (void *)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 +--------------------------------------------------------------------------*/
124 NCURSES_EXPORT(int)
item_opts_on(ITEM * item,Item_Options opts)125 item_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)"), (void *)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 +--------------------------------------------------------------------------*/
152 NCURSES_EXPORT(Item_Options)
item_opts(const ITEM * item)153 item_opts(const ITEM * item)
154 {
155 T((T_CALLED("item_opts(%p)"), (const void *)item));
156 returnItemOpts(ALL_ITEM_OPTS & Normalize_Item(item)->opt);
157 }
158
159 /* m_item_opt.c ends here */
160