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      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
     20 static char
     21 sccsid[] = "@(#)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 
     31 void
     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