xref: /illumos-gate/usr/src/lib/libxcurses/src/libc/xcurses/pecho_wc.c (revision 581cede61ac9c14d8d4ea452562a567189eead78)
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, by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
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[] = "$Header: /rd/src/libc/xcurses/rcs/pecho_wc.c 1.1 1995/06/20 13:31:51 ant Exp $";
41 #endif
42 #endif
43 
44 #include <private.h>
45 
46 int
47 pecho_wchar(WINDOW *pad, const cchar_t *cc)
48 {
49 	int code, dy, dx;
50 
51 #ifdef M_CURSES_TRACE
52 	__m_trace("pecho_wchar(%p, %p)", pad, cc);
53 #endif
54 
55 	/* Compute height and width of inclusive region. */
56 	dy = pad->_smaxy - pad->_sminy;
57 	dx = pad->_smaxx - pad->_sminx;
58 
59 	/* Is the logical cursor within the previously displayed region? */
60 	if (pad->_cury < pad->_refy || pad->_curx < pad->_refx
61 	|| pad->_refy + dy < pad->_cury || pad->_refx + dx < pad->_curx)
62 		return __m_return_code("pecho_wchar", ERR);
63 
64 	/* Add the character to the pad. */
65 	if ((code = wadd_wch(pad, cc)) == OK) {
66 		/* Redisplay previous region. */
67 		code = prefresh(
68 			pad, pad->_refy, pad->_refx,
69 			pad->_sminy, pad->_sminx, pad->_smaxy, pad->_smaxx
70 		);
71 	}
72 
73 	return __m_return_code("pecho_wchar", code);
74 }
75