xref: /netbsd-src/lib/libcurses/box.c (revision cda4f8f6ee55684e8d311b86c99ea59191e6b74f)
1 /*
2  * Copyright (c) 1981 Regents of the University of California.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #ifndef lint
35 static char sccsid[] = "@(#)box.c	5.4 (Berkeley) 6/1/90";
36 #endif /* not lint */
37 
38 # include	"curses.ext"
39 
40 /*
41  *	This routine draws a box around the given window with "vert"
42  * as the vertical delimiting char, and "hor", as the horizontal one.
43  *
44  */
45 box(win, vert, hor)
46 reg WINDOW	*win;
47 char vert, hor; {
48 
49 	reg int		i;
50 	reg int		endy, endx;
51 	reg chtype      *fp, *lp;
52 
53 	endx = win->_maxx;
54 	endy = win->_maxy - 1;
55 	fp = win->_y[0];
56 	lp = win->_y[endy];
57 	for (i = 0; i < endx; i++)
58 		fp[i] = lp[i] = (unsigned char) hor;
59 	endx--;
60 	for (i = 0; i <= endy; i++)
61 		win->_y[i][0] = (win->_y[i][endx] = (unsigned char) vert);
62 	if (!win->_scroll && (win->_flags&_SCROLLWIN))
63 		fp[0] = fp[endx] = lp[0] = lp[endx] = ' ';
64 	touchwin(win);
65 }
66