1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 1997 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */
28*0Sstevel@tonic-gate /* All Rights Reserved */
29*0Sstevel@tonic-gate
30*0Sstevel@tonic-gate /*
31*0Sstevel@tonic-gate * University Copyright- Copyright (c) 1982, 1986, 1988
32*0Sstevel@tonic-gate * The Regents of the University of California
33*0Sstevel@tonic-gate * All Rights Reserved
34*0Sstevel@tonic-gate *
35*0Sstevel@tonic-gate * University Acknowledgment- Portions of this document are derived from
36*0Sstevel@tonic-gate * software developed by the University of California, Berkeley, and its
37*0Sstevel@tonic-gate * contributors.
38*0Sstevel@tonic-gate */
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
41*0Sstevel@tonic-gate
42*0Sstevel@tonic-gate /*LINTLIBRARY*/
43*0Sstevel@tonic-gate
44*0Sstevel@tonic-gate #include <sys/types.h>
45*0Sstevel@tonic-gate #include "curses_inc.h"
46*0Sstevel@tonic-gate
47*0Sstevel@tonic-gate /*
48*0Sstevel@tonic-gate * This routine writes Srcwin on Dstwin.
49*0Sstevel@tonic-gate * Only the overlapping region is copied.
50*0Sstevel@tonic-gate */
51*0Sstevel@tonic-gate
52*0Sstevel@tonic-gate int
_overlap(WINDOW * Srcwin,WINDOW * Dstwin,int Overlay)53*0Sstevel@tonic-gate _overlap(WINDOW *Srcwin, WINDOW *Dstwin, int Overlay)
54*0Sstevel@tonic-gate {
55*0Sstevel@tonic-gate int sby, sbx, sey, sex, dby, dbx, dey, dex,
56*0Sstevel@tonic-gate top, bottom, left, right;
57*0Sstevel@tonic-gate
58*0Sstevel@tonic-gate #ifdef DEBUG
59*0Sstevel@tonic-gate if (outf)
60*0Sstevel@tonic-gate fprintf(outf, "OVERWRITE(0%o, 0%o);\n", Srcwin, Dstwin);
61*0Sstevel@tonic-gate #endif /* DEBUG */
62*0Sstevel@tonic-gate
63*0Sstevel@tonic-gate sby = Srcwin->_begy; dby = Dstwin->_begy;
64*0Sstevel@tonic-gate sbx = Srcwin->_begx; dbx = Dstwin->_begx;
65*0Sstevel@tonic-gate sey = sby + Srcwin->_maxy; dey = dby + Dstwin->_maxy;
66*0Sstevel@tonic-gate sex = sbx + Srcwin->_maxx; dex = dbx + Dstwin->_maxx;
67*0Sstevel@tonic-gate
68*0Sstevel@tonic-gate if (sey < dby || sby > dey || sex < dbx || sbx > dex)
69*0Sstevel@tonic-gate return (ERR);
70*0Sstevel@tonic-gate
71*0Sstevel@tonic-gate top = _MAX(sby, dby); bottom = _MIN(sey, dey);
72*0Sstevel@tonic-gate left = _MAX(sbx, dbx); right = _MIN(sex, dex);
73*0Sstevel@tonic-gate
74*0Sstevel@tonic-gate sby = top - sby; sbx = left - sbx;
75*0Sstevel@tonic-gate dey = bottom - dby - 1; dex = right - dbx - 1;
76*0Sstevel@tonic-gate dby = top - dby; dbx = left - dbx;
77*0Sstevel@tonic-gate
78*0Sstevel@tonic-gate return (copywin(Srcwin, Dstwin, sby, sbx, dby, dbx, dey, dex, Overlay));
79*0Sstevel@tonic-gate }
80