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/*
* 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"
/*
* Read in ncols worth of data from window win and assign the
* chars to string. NULL terminate string upon completion.
* Return the number of chtypes copied.
*/
int
winchnstr(WINDOW *win, chtype *string, int ncols)
{
chtype *ptr = &(win->_y[win->_cury][win->_curx]);
int counter = 0;
int maxcols = win->_maxx - win->_curx;
int eucw, scrw, s;
chtype rawc, attr, wc;
if (ncols < 0)
ncols = MAXINT;
while (ISCBIT(*ptr)) {
ptr--;
maxcols++;
}
while ((counter < ncols) && maxcols > 0) {
eucw = mbeucw((int) RBYTE(*ptr));
scrw = mbscrw((int) RBYTE(*ptr));
if (counter + eucw > ncols)
break;
for (s = 0; s < scrw; s++, maxcols--, ptr++) {
attr = _ATTR(*ptr);
rawc = _CHAR(*ptr);
if ((wc = RBYTE(rawc)) == MBIT)
continue;
*string++ = wc | attr;
counter++;
if ((wc = LBYTE(rawc) | MBIT) == MBIT)
continue;
*string++ = wc | attr;
counter++;
}
}
if (counter < ncols)
*string = (chtype) 0;
return (counter);
}
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