1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 1997 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1988 AT&T */ 28 /* All Rights Reserved */ 29 30 /* 31 * University Copyright- Copyright (c) 1982, 1986, 1988 32 * The Regents of the University of California 33 * All Rights Reserved 34 * 35 * University Acknowledgment- Portions of this document are derived from 36 * software developed by the University of California, Berkeley, and its 37 * contributors. 38 */ 39 40 #pragma ident "%Z%%M% %I% %E% SMI" 41 42 /*LINTLIBRARY*/ 43 44 #include <sys/types.h> 45 #include "curses_inc.h" 46 47 /* Make the changes in ancestors visible in win. */ 48 49 void 50 wsyncdown(WINDOW *win) 51 { 52 short *wbch, *wech, *pbch, *pech, bch, ech, endx; 53 int wy, px, py, endy; 54 WINDOW *par; 55 56 py = win->_pary; 57 px = win->_parx; 58 endy = win->_maxy; 59 endx = win->_maxx - 1; 60 61 for (par = win->_parent; par != NULL; par = par->_parent) { 62 if (par->_flags & (_WINCHANGED | _WIN_ADD_ONE | 63 _WIN_INS_ONE)) { 64 wbch = win->_firstch; 65 wech = win->_lastch; 66 pbch = par->_firstch + py; 67 pech = par->_lastch + py; 68 69 for (wy = 0; wy < endy; ++wy, ++wbch, ++wech, 70 ++pbch, ++pech) { 71 if (*pbch != _INFINITY) { 72 if ((bch = *pbch - px) < 0) 73 bch = 0; 74 if ((ech = *pech - px) > endx) 75 ech = endx; 76 if (!(bch > endx || ech < 0)) { 77 if (*wbch > bch) 78 *wbch = bch; 79 if (*wech < ech) 80 *wech = ech; 81 } 82 } 83 } 84 win->_flags |= _WINCHANGED; 85 } 86 87 py += par->_pary; 88 px += par->_parx; 89 } 90 } 91