1 /****************************************************************************
2 * Copyright (c) 1998-2004,2006 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_new *
35 * Creation and destruction of new menus *
36 ***************************************************************************/
37
38 #include "menu.priv.h"
39
40 MODULE_ID("$Id: m_new.c,v 1.18 2006/11/04 19:04:06 tom Exp $")
41
42 /*---------------------------------------------------------------------------
43 | Facility : libnmenu
44 | Function : MENU *new_menu(ITEM **items)
45 |
46 | Description : Creates a new menu connected to the item pointer
47 | array items and returns a pointer to the new menu.
48 | The new menu is initialized with the values from the
49 | default menu.
50 |
51 | Return Values : NULL on error
52 +--------------------------------------------------------------------------*/
NCURSES_EXPORT(MENU *)53 NCURSES_EXPORT(MENU *)
54 new_menu(ITEM ** items)
55 {
56 int err = E_SYSTEM_ERROR;
57 MENU *menu = (MENU *) calloc(1, sizeof(MENU));
58
59 T((T_CALLED("new_menu(%p)"), items));
60 if (menu)
61 {
62 *menu = _nc_Default_Menu;
63 menu->status = 0;
64 menu->rows = menu->frows;
65 menu->cols = menu->fcols;
66 if (items && *items)
67 {
68 if (!_nc_Connect_Items(menu, items))
69 {
70 err = E_NOT_CONNECTED;
71 free(menu);
72 menu = (MENU *) 0;
73 }
74 }
75 }
76
77 if (!menu)
78 SET_ERROR(err);
79
80 returnMenu(menu);
81 }
82
83 /*---------------------------------------------------------------------------
84 | Facility : libnmenu
85 | Function : int free_menu(MENU *menu)
86 |
87 | Description : Disconnects menu from its associated item pointer
88 | array and frees the storage allocated for the menu.
89 |
90 | Return Values : E_OK - success
91 | E_BAD_ARGUMENT - Invalid menu pointer passed
92 | E_POSTED - Menu is already posted
93 +--------------------------------------------------------------------------*/
94 NCURSES_EXPORT(int)
free_menu(MENU * menu)95 free_menu(MENU * menu)
96 {
97 T((T_CALLED("free_menu(%p)"), menu));
98 if (!menu)
99 RETURN(E_BAD_ARGUMENT);
100
101 if (menu->status & _POSTED)
102 RETURN(E_POSTED);
103
104 if (menu->items)
105 _nc_Disconnect_Items(menu);
106
107 if ((menu->status & _MARK_ALLOCATED) && menu->mark)
108 free(menu->mark);
109
110 free(menu);
111 RETURN(E_OK);
112 }
113
114 /* m_new.c ends here */
115