1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /* Copyright (c) 1988 AT&T */
23 /* All Rights Reserved */
24
25
26 /*
27 * Copyright (c) 1997, by Sun Mircrosystems, Inc.
28 * All rights reserved.
29 */
30
31 /*LINTLIBRARY*/
32
33 #include <sys/types.h>
34 #include "private.h"
35
36 /*
37 * This routine checks the supplied values against the values of
38 * current and top items. If a value has changed then one of
39 * terminate routines is called. Following the actual change of
40 * the value is the calling of the initialize routines.
41 */
42
43 void
_affect_change(MENU * m,int newtop,ITEM * newcurrent)44 _affect_change(MENU *m, int newtop, ITEM *newcurrent)
45 {
46 ITEM *oldcur;
47 int topchange = FALSE, curchange = FALSE;
48
49 /* Call term and init routines if posted */
50 if (Posted(m)) {
51
52 /* If current has changed terminate the old item. */
53 if (newcurrent != Current(m)) {
54 Iterm(m);
55 curchange = TRUE;
56 }
57
58 /* If top has changed then call menu init function */
59 if (newtop != Top(m)) {
60 Mterm(m);
61 topchange = TRUE;
62 }
63
64 oldcur = Current(m);
65 Top(m) = newtop;
66 Current(m) = newcurrent;
67
68 if (topchange) {
69 /* Init the new page if top has changed */
70 Minit(m);
71 }
72
73 if (curchange) {
74 /* Unmark the old item and mark the new one */
75 _movecurrent(m, oldcur);
76 /* Init the new item if current changed */
77 Iinit(m);
78 }
79
80 /* If anything changed go change user's copy of menu */
81 if (topchange || curchange) {
82 _show(m);
83 } else {
84 _position_cursor(m);
85 }
86
87 } else {
88 /* Just change Top and Current if not posted */
89 Top(m) = newtop;
90 Current(m) = newcurrent;
91 }
92 }
93