xref: /titanic_51/usr/src/lib/libcurses/screen/wvline.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
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 1997 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1988 AT&T	*/
28 /*	  All Rights Reserved	*/
29 
30 /*
31  * University Copyright- Copyright (c) 1982, 1986, 1988
32  * The Regents of the University of California
33  * All Rights Reserved
34  *
35  * University Acknowledgment- Portions of this document are derived from
36  * software developed by the University of California, Berkeley, and its
37  * contributors.
38  */
39 
40 #pragma ident	"%Z%%M%	%I%	%E% SMI"
41 
42 /*LINTLIBRARY*/
43 
44 #include	<sys/types.h>
45 #include	"curses_inc.h"
46 
47 int
48 wvline(WINDOW *win, chtype vertch, int num_chars)
49 {
50 	short	cury = win->_cury, curx = win->_curx;
51 	chtype  a, **fp = win->_y;
52 	short   *firstch = &(win->_firstch[cury]),
53 		*lastch = &(win->_lastch[cury]);
54 
55 	if (num_chars <= 0)
56 		return (ERR);
57 
58 	if (num_chars > win->_maxy - cury + 1)
59 		num_chars = win->_maxy - cury + 1;
60 	if (vertch == 0)
61 		vertch = ACS_VLINE;
62 	a = _ATTR(vertch);
63 	vertch = _WCHAR(win, vertch) | a;
64 	for (num_chars += cury; cury < num_chars; cury++, firstch++,
65 	    lastch++) {
66 		fp[cury][curx] = vertch;
67 		if (curx < *firstch)
68 			*firstch = curx;
69 		if (curx > *lastch)
70 			*lastch = curx;
71 	}
72 	win->_flags |= _WINCHANGED;
73 
74 	if (win->_sync)
75 		wsyncup(win);
76 
77 	return (win->_immed ? wrefresh(win) : OK);
78 }
79