xref: /onnv-gate/usr/src/lib/libcurses/screen/wgetwch.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*  Copyright (c) 1988 AT&T */
23*0Sstevel@tonic-gate /*    All Rights Reserved   */
24*0Sstevel@tonic-gate 
25*0Sstevel@tonic-gate 
26*0Sstevel@tonic-gate /*
27*0Sstevel@tonic-gate  *      Copyright (c) 1997, by Sun Microsystems, Inc.
28*0Sstevel@tonic-gate  *      All rights reserved.
29*0Sstevel@tonic-gate  */
30*0Sstevel@tonic-gate 
31*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
32*0Sstevel@tonic-gate 
33*0Sstevel@tonic-gate /*LINTLIBRARY*/
34*0Sstevel@tonic-gate 
35*0Sstevel@tonic-gate #include	<sys/types.h>
36*0Sstevel@tonic-gate #include	"curses_inc.h"
37*0Sstevel@tonic-gate 
38*0Sstevel@tonic-gate /*
39*0Sstevel@tonic-gate  *	Get a process code
40*0Sstevel@tonic-gate  */
41*0Sstevel@tonic-gate 
42*0Sstevel@tonic-gate int
wgetwch(WINDOW * win)43*0Sstevel@tonic-gate wgetwch(WINDOW *win)
44*0Sstevel@tonic-gate {
45*0Sstevel@tonic-gate 	int	c, n, type, width;
46*0Sstevel@tonic-gate 	char	buf[CSMAX];
47*0Sstevel@tonic-gate 	wchar_t	wchar;
48*0Sstevel@tonic-gate 
49*0Sstevel@tonic-gate 	/* get the first byte */
50*0Sstevel@tonic-gate 	if ((c = wgetch(win)) == ERR)
51*0Sstevel@tonic-gate 		return (ERR);
52*0Sstevel@tonic-gate 
53*0Sstevel@tonic-gate 	if (c >= KEY_MIN)
54*0Sstevel@tonic-gate 		return (c);
55*0Sstevel@tonic-gate 
56*0Sstevel@tonic-gate 	type = TYPE(c);
57*0Sstevel@tonic-gate 	width = cswidth[type] - ((type == 1 || type == 2) ? 0 : 1);
58*0Sstevel@tonic-gate 	/* LINTED */
59*0Sstevel@tonic-gate 	buf[0] = (char)c;
60*0Sstevel@tonic-gate 	for (n = 1; n <= width; ++n) {
61*0Sstevel@tonic-gate 		if ((c = wgetch(win)) == ERR)
62*0Sstevel@tonic-gate 			return (ERR);
63*0Sstevel@tonic-gate 		if (TYPE(c) != 0)
64*0Sstevel@tonic-gate 			return (ERR);
65*0Sstevel@tonic-gate 		/* LINTED */
66*0Sstevel@tonic-gate 		buf[n] = (char)c;
67*0Sstevel@tonic-gate 	}
68*0Sstevel@tonic-gate 
69*0Sstevel@tonic-gate 	/* translate it to process code */
70*0Sstevel@tonic-gate 	if ((_curs_mbtowc(&wchar, buf, n)) < 0)
71*0Sstevel@tonic-gate 		return (ERR);
72*0Sstevel@tonic-gate 	return ((int)wchar);
73*0Sstevel@tonic-gate 	}
74