xref: /titanic_51/usr/src/ucblib/libcurses/clrtobot.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
3*7c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
4*7c478bd9Sstevel@tonic-gate  */
5*7c478bd9Sstevel@tonic-gate 
6*7c478bd9Sstevel@tonic-gate /*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
7*7c478bd9Sstevel@tonic-gate /*	  All Rights Reserved  	*/
8*7c478bd9Sstevel@tonic-gate 
9*7c478bd9Sstevel@tonic-gate /*
10*7c478bd9Sstevel@tonic-gate  * Copyright (c) 1980 Regents of the University of California.
11*7c478bd9Sstevel@tonic-gate  * All rights reserved.  The Berkeley software License Agreement
12*7c478bd9Sstevel@tonic-gate  * specifies the terms and conditions for redistribution.
13*7c478bd9Sstevel@tonic-gate  */
14*7c478bd9Sstevel@tonic-gate 
15*7c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
16*7c478bd9Sstevel@tonic-gate 
17*7c478bd9Sstevel@tonic-gate /*LINTLIBRARY*/
18*7c478bd9Sstevel@tonic-gate 
19*7c478bd9Sstevel@tonic-gate #ifndef lint
20*7c478bd9Sstevel@tonic-gate static char
21*7c478bd9Sstevel@tonic-gate sccsid[] = "@(#)clrtobot.c 1.7 88/02/08 SMI"; /* from UCB 5.2 85/10/24 */
22*7c478bd9Sstevel@tonic-gate #endif	/* not lint */
23*7c478bd9Sstevel@tonic-gate 
24*7c478bd9Sstevel@tonic-gate #include	<stddef.h>
25*7c478bd9Sstevel@tonic-gate #include	"curses.ext"
26*7c478bd9Sstevel@tonic-gate 
27*7c478bd9Sstevel@tonic-gate /*
28*7c478bd9Sstevel@tonic-gate  *	This routine erases everything on the window.
29*7c478bd9Sstevel@tonic-gate  */
30*7c478bd9Sstevel@tonic-gate 
31*7c478bd9Sstevel@tonic-gate int
32*7c478bd9Sstevel@tonic-gate wclrtobot(WINDOW *win)
33*7c478bd9Sstevel@tonic-gate {
34*7c478bd9Sstevel@tonic-gate 	int	y;
35*7c478bd9Sstevel@tonic-gate 	char	*sp, *end, *maxx;
36*7c478bd9Sstevel@tonic-gate 	int	startx;
37*7c478bd9Sstevel@tonic-gate 	ptrdiff_t	minx;
38*7c478bd9Sstevel@tonic-gate 
39*7c478bd9Sstevel@tonic-gate 	startx = win->_curx;
40*7c478bd9Sstevel@tonic-gate 	for (y = win->_cury; y < win->_maxy; y++) {
41*7c478bd9Sstevel@tonic-gate 		minx = _NOCHANGE;
42*7c478bd9Sstevel@tonic-gate 		end = &win->_y[y][win->_maxx];
43*7c478bd9Sstevel@tonic-gate 		for (sp = &win->_y[y][startx]; sp < end; sp++)
44*7c478bd9Sstevel@tonic-gate 			if (*sp != ' ') {
45*7c478bd9Sstevel@tonic-gate 				maxx = sp;
46*7c478bd9Sstevel@tonic-gate 				if (minx == _NOCHANGE)
47*7c478bd9Sstevel@tonic-gate 					minx = sp - win->_y[y];
48*7c478bd9Sstevel@tonic-gate 				*sp = ' ';
49*7c478bd9Sstevel@tonic-gate 			}
50*7c478bd9Sstevel@tonic-gate 		if (minx != _NOCHANGE)
51*7c478bd9Sstevel@tonic-gate 			(void) touchline(win, y, (int)minx,
52*7c478bd9Sstevel@tonic-gate 			    (int)(maxx - &win->_y[y][0]));
53*7c478bd9Sstevel@tonic-gate 		startx = 0;
54*7c478bd9Sstevel@tonic-gate 	}
55*7c478bd9Sstevel@tonic-gate 	return (OK);
56*7c478bd9Sstevel@tonic-gate }
57