xref: /illumos-gate/usr/src/lib/libxcurses2/src/libc/xcurses/pecho_wc.c (revision 1edba515a3484e0f74b638b203d462b3112ac84d)
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 /*
23  * Copyright (c) 1995-1998 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 /* LINTLIBRARY */
28 
29 /*
30  * pecho_wc.c
31  *
32  * XCurses Library
33  *
34  * Copyright 1990, 1995 by Mortice Kern Systems Inc.  All rights reserved.
35  *
36  */
37 
38 #if M_RCSID
39 #ifndef lint
40 static char rcsID[] =
41 "$Header: /team/ps/sun_xcurses/archive/local_changes/xcurses/src/lib/"
42 "libxcurses/src/libc/xcurses/rcs/pecho_wc.c 1.4 1998/05/22 15:04:28 "
43 "cbates Exp $";
44 #endif
45 #endif
46 
47 #include <private.h>
48 
49 int
50 pecho_wchar(WINDOW *pad, const cchar_t *cc)
51 {
52 	int	code, dy, dx;
53 	int	code1;
54 
55 	/* Compute height and width of inclusive region. */
56 	dy = pad->_smaxy - pad->_sminy;
57 	dx = pad->_smaxx - pad->_sminx;
58 
59 
60 	/* Is the logical cursor within the previously displayed region? */
61 	if (pad->_cury < pad->_refy || pad->_curx < pad->_refx ||
62 		pad->_refy + dy < pad->_cury || pad->_refx + dx < pad->_curx)
63 		return (ERR);
64 
65 	/* Add the character to the pad. */
66 	code1 = wadd_wch(pad, cc);
67 
68 	/* Redisplay previous region. */
69 	code = prefresh(pad, pad->_refy, pad->_refx,
70 		pad->_sminy, pad->_sminx, pad->_smaxy, pad->_smaxx);
71 
72 	return ((code1) ? code : code1);
73 }
74