xref: /illumos-gate/usr/src/lib/libcurses/screen/wvline.c (revision ddb365bfc9e868ad24ccdcb0dc91af18b10df082)
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 2005 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 /*LINTLIBRARY*/
41 
42 #include	<sys/types.h>
43 #include	"curses_inc.h"
44 
45 int
46 wvline(WINDOW *win, chtype vertch, int num_chars)
47 {
48 	short	cury = win->_cury, curx = win->_curx;
49 	chtype  a, **fp = win->_y;
50 	short   *firstch = &(win->_firstch[cury]);
51 	short	*lastch = &(win->_lastch[cury]);
52 
53 	if (num_chars <= 0)
54 		return (ERR);
55 
56 	if (num_chars > win->_maxy - cury)
57 		num_chars = win->_maxy - cury;
58 	if (vertch == 0)
59 		vertch = ACS_VLINE;
60 	a = _ATTR(vertch);
61 	vertch = _WCHAR(win, vertch) | a;
62 	for (num_chars += cury; cury < num_chars; cury++, firstch++,
63 	    lastch++) {
64 		fp[cury][curx] = vertch;
65 		if (curx < *firstch)
66 			*firstch = curx;
67 		if (curx > *lastch)
68 			*lastch = curx;
69 	}
70 	win->_flags |= _WINCHANGED;
71 
72 	if (win->_sync)
73 		wsyncup(win);
74 
75 	return (win->_immed ? wrefresh(win) : OK);
76 }
77