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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 <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include "curses_inc.h"
/*
* Duplicate a window.
*
* SS: calling makenew to allocate a new window is wastefull, since
* makenew initializes all the variables, and then we re-initialize
* the desired values to these variables.
*/
WINDOW *
dupwin(WINDOW *win)
{
WINDOW *new;
int i, ncolumns = win->_maxx, nlines = win->_maxy;
size_t line_size = nlines * sizeof (short);
chtype **wincp, **newcp;
int ncolsav = ncolumns;
/* allocate storage for new window and do block copy of */
/* old one into new */
if ((new = (WINDOW *) malloc(sizeof (WINDOW))) == NULL)
goto out0;
(void) memcpy(new, win, sizeof (WINDOW));
/* allocate storage for "malloced" fields of the new window */
if ((new->_firstch = (short *)malloc((unsigned)2 * line_size)) == NULL)
goto out1;
else
win->_lastch = win->_firstch + nlines;
if ((new->_y = (chtype **) malloc(nlines * sizeof (chtype *))) ==
NULL) {
/*
* We put the free's here rather than after the image call, this
* is because _image free's all the rest of the malloc'ed areas.
*/
free((char *)new->_firstch);
out1:
free((char *)new);
goto out0;
}
if (_image(new) == ERR) {
out0:
curs_errno = CURS_BAD_MALLOC;
#ifdef DEBUG
strcpy(curs_parm_err, "dupwin");
curserr();
#endif /* DEBUG */
return ((WINDOW *) NULL);
}
/* copy information from "malloced" areas of the old window into new */
wincp = win->_y;
newcp = new->_y;
for (i = 0; i < nlines; ++i, ++wincp, ++newcp) {
chtype *ws, *we, *ns, *ne, wc;
int n;
ws = *wincp;
we = ws + ncolsav - 1;
/* skip partial characters */
for (; ws <= we; ++ws)
if (!ISCBIT(*ws))
break;
for (; we >= ws; --we)
if (!ISCBIT(*we))
break;
if (we >= ws) {
wc = *we;
n = _curs_scrwidth[TYPE(wc)];
if ((we + n) <= (*wincp + ncolsav))
we += n;
ns = *newcp + (ws - *wincp);
ne = *newcp + (we - *wincp);
(void) memcpy((char *)ns, (char *)ws,
(ne-ns)*sizeof (chtype));
} else
ns = ne = *newcp + ncolsav;
/* fill the rest with background chars */
wc = win->_bkgd;
for (ws = *newcp; ws < ns; ++ws)
*ws = wc;
for (ws = *newcp+ncolsav-1; ws >= ne; --ws)
*ws = wc;
}
(void) memcpy((char *)new->_firstch, (char *)win->_firstch,
2 * line_size);
new->_flags |= _WINCHANGED;
new->_ndescs = 0;
/*
* Just like we don't create this window as a subwin if the one
* sent is, we don't create a padwin. Besides, if the user
* calls p*refresh a padwin will be created then.
*/
new->_padwin = new->_parent = (WINDOW *) NULL;
new->_pary = new->_parx = -1;
new->_index = win->_index;
new->_nbyte = win->_nbyte;
new->_insmode = win->_insmode;
(void) memcpy((char *)new->_waitc, (char *)win->_waitc,
_csmax * sizeof (char));
return (new);
}
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