1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 1997 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1988 AT&T */
28 /* All Rights Reserved */
29
30 /*
31 * University Copyright- Copyright (c) 1982, 1986, 1988
32 * The Regents of the University of California
33 * All Rights Reserved
34 *
35 * University Acknowledgment- Portions of this document are derived from
36 * software developed by the University of California, Berkeley, and its
37 * contributors.
38 */
39
40 /*LINTLIBRARY*/
41
42 #include <sys/types.h>
43 #include "curses_inc.h"
44
45 /* Sync the changes in a window with its ancestors. */
46
47 void
wsyncup(WINDOW * win)48 wsyncup(WINDOW *win)
49 {
50 short *wbch, *wech, *pbch, *pech, bch, ech;
51 int wy, px, py, endy;
52 WINDOW *par;
53
54 for (par = win->_parent; par != NULL; win = par, par = par->_parent) {
55 py = win->_pary;
56 px = win->_parx;
57 endy = win->_maxy;
58
59 wbch = win->_firstch;
60 wech = win->_lastch;
61 pbch = par->_firstch+ py;
62 pech = par->_lastch+ py;
63
64 /*
65 * I don't think we need check WINCHANGED first.
66 * The reasoning is that all internal calls will have come
67 * from a function that did change the window. And assumably
68 * all external calls will work the same way.
69 */
70 par->_flags |= _WINCHANGED;
71 /* check each line */
72 for (wy = 0; wy < endy; ++wy, ++wbch, ++wech, ++pbch, ++pech)
73 if (*wbch != _INFINITY) {
74 bch = px + *wbch;
75 ech = px + *wech;
76 if (*pbch > bch)
77 *pbch = bch;
78 if (*pech < ech)
79 *pech = ech;
80 }
81 }
82 }
83
84 void
wcursyncup(WINDOW * win)85 wcursyncup(WINDOW *win)
86 {
87 WINDOW *par = win->_parent;
88
89 while (par != NULL) {
90 par->_cury = win->_cury + win->_pary;
91 par->_curx = win->_curx + win->_parx;
92 par = (win = par)->_parent;
93 }
94 }
95