xref: /illumos-gate/usr/src/lib/libeti/menu/common/scale.c (revision 1da57d55)
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 /* Calculate the numbers of rows and columns needed to display the menu */
37 
38 void
_scale(MENU * m)39 _scale(MENU *m)
40 {
41 	int width;
42 
43 	if (Items(m) && IthItem(m, 0)) {
44 		/* Get the width of one column */
45 		width = MaxName(m) + Marklen(m);
46 
47 		if (ShowDesc(m) && MaxDesc(m)) {
48 			width += MaxDesc(m) + 1;
49 		}
50 		Itemlen(m) = width;
51 
52 		/* Multiply this by the number of columns */
53 		width = width * Cols(m);
54 		/* Add in the number of spaces between columns */
55 		width += Cols(m) - 1;
56 		Width(m) = width;
57 	}
58 }
59 
60 int
scale_menu(MENU * m,int * r,int * c)61 scale_menu(MENU *m, int *r, int *c)
62 {
63 	if (!m) {
64 		return (E_BAD_ARGUMENT);
65 	}
66 	if (Items(m) && IthItem(m, 0)) {
67 		*r = Height(m);
68 		*c = Width(m);
69 		return (E_OK);
70 	}
71 	return (E_NOT_CONNECTED);
72 }
73