1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate  * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
24*7c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
25*7c478bd9Sstevel@tonic-gate  */
27*7c478bd9Sstevel@tonic-gate /*	Copyright (c) 1988 AT&T	*/
28*7c478bd9Sstevel@tonic-gate /*	  All Rights Reserved	*/
30*7c478bd9Sstevel@tonic-gate /*
31*7c478bd9Sstevel@tonic-gate  * University Copyright- Copyright (c) 1982, 1986, 1988
32*7c478bd9Sstevel@tonic-gate  * The Regents of the University of California
33*7c478bd9Sstevel@tonic-gate  * All Rights Reserved
34*7c478bd9Sstevel@tonic-gate  *
35*7c478bd9Sstevel@tonic-gate  * University Acknowledgment- Portions of this document are derived from
36*7c478bd9Sstevel@tonic-gate  * software developed by the University of California, Berkeley, and its
37*7c478bd9Sstevel@tonic-gate  * contributors.
38*7c478bd9Sstevel@tonic-gate  */
40*7c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
42*7c478bd9Sstevel@tonic-gate /*LINTLIBRARY*/
44*7c478bd9Sstevel@tonic-gate #include	<stdlib.h>
45*7c478bd9Sstevel@tonic-gate #include	<string.h>
46*7c478bd9Sstevel@tonic-gate #include	<sys/types.h>
47*7c478bd9Sstevel@tonic-gate #include	"curses_inc.h"
49*7c478bd9Sstevel@tonic-gate /*
50*7c478bd9Sstevel@tonic-gate  * Duplicate a window.
51*7c478bd9Sstevel@tonic-gate  *
52*7c478bd9Sstevel@tonic-gate  * SS:	calling makenew to allocate a new window is wastefull, since
53*7c478bd9Sstevel@tonic-gate  *	makenew initializes all the variables, and then we re-initialize
54*7c478bd9Sstevel@tonic-gate  *	the desired values to these variables.
55*7c478bd9Sstevel@tonic-gate  */
57*7c478bd9Sstevel@tonic-gate WINDOW	*
dupwin(WINDOW * win)58*7c478bd9Sstevel@tonic-gate dupwin(WINDOW *win)
59*7c478bd9Sstevel@tonic-gate {
60*7c478bd9Sstevel@tonic-gate 	WINDOW		*new;
61*7c478bd9Sstevel@tonic-gate 	int		i, ncolumns = win->_maxx, nlines = win->_maxy;
62*7c478bd9Sstevel@tonic-gate 	size_t		line_size = nlines * sizeof (short);
63*7c478bd9Sstevel@tonic-gate 	chtype		**wincp, **newcp;
64*7c478bd9Sstevel@tonic-gate 	int		ncolsav = ncolumns;
66*7c478bd9Sstevel@tonic-gate 	/* allocate storage for new window and do block copy of */
67*7c478bd9Sstevel@tonic-gate 	/* old one into new */
69*7c478bd9Sstevel@tonic-gate 	if ((new = (WINDOW *) malloc(sizeof (WINDOW))) == NULL)
70*7c478bd9Sstevel@tonic-gate 		goto out0;
72*7c478bd9Sstevel@tonic-gate 	(void) memcpy(new, win, sizeof (WINDOW));
74*7c478bd9Sstevel@tonic-gate 	/* allocate storage for "malloced" fields of the new window */
76*7c478bd9Sstevel@tonic-gate 	if ((new->_firstch = (short *)malloc((unsigned)2 * line_size)) == NULL)
77*7c478bd9Sstevel@tonic-gate 		goto out1;
78*7c478bd9Sstevel@tonic-gate 	else
79*7c478bd9Sstevel@tonic-gate 		win->_lastch = win->_firstch + nlines;
81*7c478bd9Sstevel@tonic-gate 	if ((new->_y = (chtype **) malloc(nlines * sizeof (chtype *))) ==
82*7c478bd9Sstevel@tonic-gate 	    NULL) {
83*7c478bd9Sstevel@tonic-gate 	/*
84*7c478bd9Sstevel@tonic-gate 	 * We put the free's here rather than after the image call, this
85*7c478bd9Sstevel@tonic-gate 	 * is because _image free's all the rest of the malloc'ed areas.
86*7c478bd9Sstevel@tonic-gate 	 */
87*7c478bd9Sstevel@tonic-gate 		free((char *)new->_firstch);
88*7c478bd9Sstevel@tonic-gate out1:
89*7c478bd9Sstevel@tonic-gate 		free((char *)new);
90*7c478bd9Sstevel@tonic-gate 		goto out0;
91*7c478bd9Sstevel@tonic-gate 	}
93*7c478bd9Sstevel@tonic-gate 	if (_image(new) == ERR) {
94*7c478bd9Sstevel@tonic-gate out0:
95*7c478bd9Sstevel@tonic-gate 		curs_errno = CURS_BAD_MALLOC;
96*7c478bd9Sstevel@tonic-gate #ifdef	DEBUG
97*7c478bd9Sstevel@tonic-gate 		strcpy(curs_parm_err, "dupwin");
98*7c478bd9Sstevel@tonic-gate 		curserr();
99*7c478bd9Sstevel@tonic-gate #endif	/* DEBUG */
100*7c478bd9Sstevel@tonic-gate 		return ((WINDOW *) NULL);
101*7c478bd9Sstevel@tonic-gate 	}
103*7c478bd9Sstevel@tonic-gate 	/* copy information from "malloced" areas of the old window into new */
105*7c478bd9Sstevel@tonic-gate 	wincp = win->_y;
106*7c478bd9Sstevel@tonic-gate 	newcp = new->_y;
107*7c478bd9Sstevel@tonic-gate 	for (i = 0; i < nlines; ++i, ++wincp, ++newcp) {
108*7c478bd9Sstevel@tonic-gate 		chtype		*ws, *we, *ns, *ne, wc;
109*7c478bd9Sstevel@tonic-gate 		int		n;
111*7c478bd9Sstevel@tonic-gate 		ws = *wincp;
112*7c478bd9Sstevel@tonic-gate 		we = ws + ncolsav - 1;
113*7c478bd9Sstevel@tonic-gate 		/* skip partial characters */
114*7c478bd9Sstevel@tonic-gate 		for (; ws <= we; ++ws)
115*7c478bd9Sstevel@tonic-gate 			if (!ISCBIT(*ws))
116*7c478bd9Sstevel@tonic-gate 				break;
117*7c478bd9Sstevel@tonic-gate 		for (; we >= ws; --we)
118*7c478bd9Sstevel@tonic-gate 			if (!ISCBIT(*we))
119*7c478bd9Sstevel@tonic-gate 				break;
120*7c478bd9Sstevel@tonic-gate 		if (we >= ws) {
121*7c478bd9Sstevel@tonic-gate 			wc = *we;
122*7c478bd9Sstevel@tonic-gate 			n = _curs_scrwidth[TYPE(wc)];
123*7c478bd9Sstevel@tonic-gate 			if ((we + n) <= (*wincp + ncolsav))
124*7c478bd9Sstevel@tonic-gate 				we += n;
125*7c478bd9Sstevel@tonic-gate 			ns = *newcp + (ws - *wincp);
126*7c478bd9Sstevel@tonic-gate 			ne = *newcp + (we - *wincp);
127*7c478bd9Sstevel@tonic-gate 			(void) memcpy((char *)ns, (char *)ws,
128*7c478bd9Sstevel@tonic-gate 			    (ne-ns)*sizeof (chtype));
129*7c478bd9Sstevel@tonic-gate 		} else
130*7c478bd9Sstevel@tonic-gate 			ns = ne = *newcp + ncolsav;
131*7c478bd9Sstevel@tonic-gate 		/* fill the rest with background chars */
132*7c478bd9Sstevel@tonic-gate 		wc = win->_bkgd;
133*7c478bd9Sstevel@tonic-gate 		for (ws = *newcp; ws < ns; ++ws)
134*7c478bd9Sstevel@tonic-gate 			*ws = wc;
135*7c478bd9Sstevel@tonic-gate 		for (ws = *newcp+ncolsav-1; ws >= ne; --ws)
136*7c478bd9Sstevel@tonic-gate 			*ws = wc;
137*7c478bd9Sstevel@tonic-gate 	}
139*7c478bd9Sstevel@tonic-gate 	(void) memcpy((char *)new->_firstch, (char *)win->_firstch,
140*7c478bd9Sstevel@tonic-gate 	    2 * line_size);
142*7c478bd9Sstevel@tonic-gate 	new->_flags |= _WINCHANGED;
143*7c478bd9Sstevel@tonic-gate 	new->_ndescs = 0;
144*7c478bd9Sstevel@tonic-gate 	/*
145*7c478bd9Sstevel@tonic-gate 	 * Just like we don't create this window as a subwin if the one
146*7c478bd9Sstevel@tonic-gate 	 * sent is, we don't create a padwin.  Besides, if the user
147*7c478bd9Sstevel@tonic-gate 	 * calls p*refresh a padwin will be created then.
148*7c478bd9Sstevel@tonic-gate 	 */
149*7c478bd9Sstevel@tonic-gate 	new->_padwin = new->_parent = (WINDOW *) NULL;
150*7c478bd9Sstevel@tonic-gate 	new->_pary = new->_parx = -1;
152*7c478bd9Sstevel@tonic-gate 	new->_index = win->_index;
153*7c478bd9Sstevel@tonic-gate 	new->_nbyte = win->_nbyte;
154*7c478bd9Sstevel@tonic-gate 	new->_insmode = win->_insmode;
155*7c478bd9Sstevel@tonic-gate 	(void) memcpy((char *)new->_waitc, (char *)win->_waitc,
156*7c478bd9Sstevel@tonic-gate 	    _csmax * sizeof (char));
158*7c478bd9Sstevel@tonic-gate 	return (new);
159*7c478bd9Sstevel@tonic-gate }