wtouchln.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"
/*
* Make a number of lines look like they have/have not been changed.
* y: the start line
* n: the number of lines affected
* changed: 1: changed
* 0: not changed
* -1: changed. Called internally - In this mode
* even REDRAW lines are changed.
*/
int
wtouchln(WINDOW *win, int y, int n, int changed)
{
short *firstch, *lastch, b, e;
int maxy = win->_maxy;
if (y >= maxy)
return (ERR);
if (y < 0)
y = 0;
if ((y + n) > maxy)
n = maxy - y;
firstch = win->_firstch + y;
lastch = win->_lastch + y;
if (changed) {
win->_flags |= _WINCHANGED;
b = 0;
e = win->_maxx - 1;
} else {
b = _INFINITY;
e = -1;
win->_flags &= ~_WINCHANGED;
}
for (; n-- > 0; firstch++, lastch++) {
if (changed == -1 || *firstch != _REDRAW)
*firstch = b, *lastch = e;
}
if ((changed == 1) && win->_sync)
wsyncup(win);
return (((changed == 1) && win->_immed) ? wrefresh(win) : OK);
}