1 /*
2  * Copyright 2001 Sun Microsystems, Inc.  All rights reserved.
3  * Use is subject to license terms.
4  */
5 
6 /*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
7 /*	  All Rights Reserved  	*/
8 
9 /*
10  * Copyright (c) 1980 Regents of the University of California.
11  * All rights reserved.  The Berkeley software License Agreement
12  * specifies the terms and conditions for redistribution.
13  */
14 
15 #pragma ident	"%Z%%M%	%I%	%E% SMI"
16 
17 /*LINTLIBRARY*/
18 
19 #ifndef lint
20 static char
21 sccsid[] = "@(#)insertln.c 1.6 88/02/08 SMI"; /* from UCB 5.1 85/06/07 */
22 #endif /* not lint */
23 
24 #include	"curses.ext"
25 #include	<string.h>
26 
27 /*
28  *	This routine performs an insert-line on the window, leaving
29  * (_cury,_curx) unchanged.
30  */
31 
32 int
winsertln(WINDOW * win)33 winsertln(WINDOW *win)
34 {
35 	char	*temp;
36 	int	y;
37 	char	*end;
38 
39 #ifdef	DEBUG
40 	fprintf(outf, "INSERTLN(%0.2o)\n", win);
41 #endif
42 	if (win->_orig == NULL)
43 		temp = win->_y[win->_maxy - 1];
44 	for (y = win->_maxy - 1; y > win->_cury; --y) {
45 		if (win->_orig == NULL)
46 			win->_y[y] = win->_y[y - 1];
47 		else
48 			(void) memmove(win->_y[y], win->_y[y-1], win->_maxx);
49 		(void) touchline(win, y, 0, win->_maxx - 1);
50 	}
51 	if (win->_orig == NULL)
52 		win->_y[y] = temp;
53 	else
54 		temp = win->_y[y];
55 	for (end = &temp[win->_maxx]; temp < end; )
56 		*temp++ = ' ';
57 	(void) touchline(win, y, 0, win->_maxx - 1);
58 	if (win->_orig == NULL)
59 		_id_subwins(win);
60 	return (OK);
61 }
62