wsyncup.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1997 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*LINTLIBRARY*/
#include <sys/types.h>
#include "curses_inc.h"
/* Sync the changes in a window with its ancestors. */
void
wsyncup(WINDOW *win)
{
short *wbch, *wech, *pbch, *pech, bch, ech;
int wy, px, py, endy;
WINDOW *par;
for (par = win->_parent; par != NULL; win = par, par = par->_parent) {
py = win->_pary;
px = win->_parx;
endy = win->_maxy;
wbch = win->_firstch;
wech = win->_lastch;
pbch = par->_firstch+ py;
pech = par->_lastch+ py;
/*
* I don't think we need check WINCHANGED first.
* The reasoning is that all internal calls will have come
* from a function that did change the window. And assumably
* all external calls will work the same way.
*/
par->_flags |= _WINCHANGED;
/* check each line */
for (wy = 0; wy < endy; ++wy, ++wbch, ++wech, ++pbch, ++pech)
if (*wbch != _INFINITY) {
bch = px + *wbch;
ech = px + *wech;
if (*pbch > bch)
*pbch = bch;
if (*pech < ech)
*pech = ech;
}
}
}
void
wcursyncup(WINDOW *win)
{
WINDOW *par = win->_parent;
while (par != NULL) {
par->_cury = win->_cury + win->_pary;
par->_curx = win->_curx + win->_parx;
par = (win = par)->_parent;
}
}