/*
 * Copyright (c) 1981, 1993, 1994
 *	The Regents of the University of California.  All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#ifndef lint
static char sccsid[] = "@(#)clrtobot.c	8.2 (Berkeley) 05/04/94";
#endif	/* not lint */

#include "curses.h"

/*
 * wclrtobot --
 *	Erase everything on the window.
 */
int
wclrtobot(win)
	register WINDOW *win;
{
	register int minx, startx, starty, y;
	register __LDATA *sp, *end, *maxx;

	if (win->lines[win->cury]->flags & __ISPASTEOL) {
		starty = win->cury + 1;
		startx = 0;
	} else {
		starty = win->cury;
		startx = win->curx;
	}
	for (y = starty; y < win->maxy; y++) {
		minx = -1;
		end = &win->lines[y]->line[win->maxx];
		for (sp = &win->lines[y]->line[startx]; sp < end; sp++)
			if (sp->ch != ' ' || sp->attr != 0) {
				maxx = sp;
				if (minx == -1)
					minx = sp - win->lines[y]->line;
				sp->ch = ' ';
				sp->attr = 0;
			}
		if (minx != -1)
			__touchline(win, y, minx, maxx - win->lines[y]->line,
		            0);
		startx = 0;
	}
	return (OK);
}