xref: /freebsd/contrib/ncurses/ncurses/base/lib_hline.c (revision 2be1a816b9ff69588e55be0a84cbe2a31efc0f2f)
1 /****************************************************************************
2  * Copyright (c) 1998-2001,2006 Free Software Foundation, Inc.              *
3  *                                                                          *
4  * Permission is hereby granted, free of charge, to any person obtaining a  *
5  * copy of this software and associated documentation files (the            *
6  * "Software"), to deal in the Software without restriction, including      *
7  * without limitation the rights to use, copy, modify, merge, publish,      *
8  * distribute, distribute with modifications, sublicense, and/or sell       *
9  * copies of the Software, and to permit persons to whom the Software is    *
10  * furnished to do so, subject to the following conditions:                 *
11  *                                                                          *
12  * The above copyright notice and this permission notice shall be included  *
13  * in all copies or substantial portions of the Software.                   *
14  *                                                                          *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
18  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
21  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
22  *                                                                          *
23  * Except as contained in this notice, the name(s) of the above copyright   *
24  * holders shall not be used in advertising or otherwise to promote the     *
25  * sale, use or other dealings in this Software without prior written       *
26  * authorization.                                                           *
27  ****************************************************************************/
28 
29 /****************************************************************************
30  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
31  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
32  ****************************************************************************/
33 
34 /*
35 **	lib_hline.c
36 **
37 **	The routine whline().
38 **
39 */
40 
41 #include <curses.priv.h>
42 
43 MODULE_ID("$Id: lib_hline.c,v 1.11 2006/03/11 21:52:27 tom Exp $")
44 
45 NCURSES_EXPORT(int)
46 whline(WINDOW *win, chtype ch, int n)
47 {
48     int code = ERR;
49     NCURSES_SIZE_T start;
50     NCURSES_SIZE_T end;
51 
52     T((T_CALLED("whline(%p,%s,%d)"), win, _tracechtype(ch), n));
53 
54     if (win) {
55 	struct ldat *line = &(win->_line[win->_cury]);
56 	NCURSES_CH_T wch;
57 
58 	start = win->_curx;
59 	end = start + n - 1;
60 	if (end > win->_maxx)
61 	    end = win->_maxx;
62 
63 	CHANGED_RANGE(line, start, end);
64 
65 	if (ch == 0)
66 	    SetChar2(wch, ACS_HLINE);
67 	else
68 	    SetChar2(wch, ch);
69 	wch = _nc_render(win, wch);
70 
71 	while (end >= start) {
72 	    line->text[end] = wch;
73 	    end--;
74 	}
75 
76 	_nc_synchook(win);
77 	code = OK;
78     }
79     returnCode(code);
80 }
81