/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */
#include "curses.ext"
#include <strings.h>

/*
 *	This routine performs an insert-line on the window, leaving
 * (_cury,_curx) unchanged.
 */
void
winsertln(win)
        WINDOW	*win;
{
	char	*temp = 0;
	int	y;
	char	*end;

#ifdef	DEBUG
	fprintf(outf, "INSERTLN(%0.2o)\n", win);
#endif
	if (win->_orig == NULL)
		temp = win->_y[win->_maxy - 1];
	for (y = win->_maxy - 1; y > win->_cury; --y) {
		if (win->_orig == NULL)
			win->_y[y] = win->_y[y - 1];
		else
			bcopy(win->_y[y - 1], win->_y[y], win->_maxx);
		touchline(win, y, 0, win->_maxx - 1);
	}
	if (win->_orig == NULL)
		win->_y[y] = temp;
	else
		temp = win->_y[y];
	for (end = &temp[win->_maxx]; temp < end; )
		*temp++ = ' ';
	touchline(win, y, 0, win->_maxx - 1);
	if (win->_orig == NULL)
		_id_subwins(win);
}
