xref: /openbsd-src/lib/libcurses/base/lib_vline.c (revision 1fe33145a0a9b1310a0413297a8deb871918b27f)
1 /*	$OpenBSD: lib_vline.c,v 1.2 2000/06/19 03:53:46 millert Exp $	*/
2 
3 /****************************************************************************
4  * Copyright (c) 1998,1999,2000 Free Software Foundation, Inc.              *
5  *                                                                          *
6  * Permission is hereby granted, free of charge, to any person obtaining a  *
7  * copy of this software and associated documentation files (the            *
8  * "Software"), to deal in the Software without restriction, including      *
9  * without limitation the rights to use, copy, modify, merge, publish,      *
10  * distribute, distribute with modifications, sublicense, and/or sell       *
11  * copies of the Software, and to permit persons to whom the Software is    *
12  * furnished to do so, subject to the following conditions:                 *
13  *                                                                          *
14  * The above copyright notice and this permission notice shall be included  *
15  * in all copies or substantial portions of the Software.                   *
16  *                                                                          *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
20  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
21  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
22  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
23  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
24  *                                                                          *
25  * Except as contained in this notice, the name(s) of the above copyright   *
26  * holders shall not be used in advertising or otherwise to promote the     *
27  * sale, use or other dealings in this Software without prior written       *
28  * authorization.                                                           *
29  ****************************************************************************/
30 
31 /****************************************************************************
32  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
33  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
34  ****************************************************************************/
35 
36 /*
37 **	lib_vline.c
38 **
39 **	The routine wvline().
40 **
41 */
42 
43 #include <curses.priv.h>
44 
45 MODULE_ID("$From: lib_vline.c,v 1.5 2000/04/29 21:14:11 tom Exp $")
46 
47 int
48 wvline(WINDOW *win, chtype ch, int n)
49 {
50     int code = ERR;
51     NCURSES_SIZE_T row, col;
52     NCURSES_SIZE_T end;
53 
54     T((T_CALLED("wvline(%p,%s,%d)"), win, _tracechtype(ch), n));
55 
56     if (win) {
57 	row = win->_cury;
58 	col = win->_curx;
59 	end = row + n - 1;
60 	if (end > win->_maxy)
61 	    end = win->_maxy;
62 
63 	if (ch == 0)
64 	    ch = ACS_VLINE;
65 	ch = _nc_render(win, ch);
66 
67 	while (end >= row) {
68 	    struct ldat *line = &(win->_line[end]);
69 	    line->text[col] = ch;
70 	    CHANGED_CELL(line, col);
71 	    end--;
72 	}
73 
74 	_nc_synchook(win);
75 	code = OK;
76     }
77     returnCode(code);
78 }
79