1/*
2 * Copyright 2004 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
20static char
21sccsid[] = "@(#)id_subwins.c 1.3 88/02/08 SMI"; /* from UCB 5.1 85/06/07 */
22#endif	/* not lint */
23
24#include	"curses.ext"
25
26/*
27 * _id_subwins:
28 *	Re-sync the pointers to _y for all the subwindows.
29 */
30
31void
32_id_subwins(WINDOW *orig)
33{
34	WINDOW	*win;
35	int	realy;
36	int	y, oy;
37
38	realy = orig->_begy + orig->_cury;
39	for (win = orig->_nextp; win != orig; win = win->_nextp) {
40		/*
41		 * If the window ends before our current position,
42		 * don't need to do anything.
43		 */
44		if (win->_begy + win->_maxy <= realy)
45			continue;
46
47		oy = orig->_cury;
48		for (y = realy - win->_begy; y < win->_maxy; y++, oy++)
49			win->_y[y] = &orig->_y[oy][win->_ch_off];
50	}
51}
52