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 /*
43 * This routine is used by initialization routines. It sets it up
44 * such that a line is removed from the user's screen by initscr. This
45 * function must be called BEFORE initscr. It works by leaving a cookie
46 * which tells initscr to reduce the size of stdscr by one for each line
47 * ripped off. This routine has been generalized so that other applications
48 * can make use of it in a straightforward manner.
49 */
50
51 #include <sys/types.h>
52 #include "curses_inc.h"
53
54 static struct _ripdef
55 {
56 int line;
57 int (*initfunction)(WINDOW *, int);
58 } _ripstruct[5];
59
60 static char _ripcounter;
61
62 static void
_init_rip_func(void)63 _init_rip_func(void)
64 {
65 int i, flag;
66
67 for (i = 0; i < _ripcounter; i++) {
68 LINES = --SP->lsize;
69 /*
70 * We don't need to check for newwin returning NULL because even if
71 * we did and broke from the for loop, the application's initfunction
72 * would not be called and they would have a NULL window pointer. Their
73 * code would then blow up if they don't check it anyway. Therefore,
74 * we can send in the newwin and their code has to check for NULL in either
75 * case.
76 *
77 * NOTE: The application has the responsibilty to do a delwin !!!
78 */
79 (*_ripstruct[i].initfunction) (newwin(1, COLS,
80 ((flag = _ripstruct[i].line) > 0) ? 0 : LINES, 0), COLS);
81 if (flag > 0)
82 SP->Yabove++;
83 }
84 _ripcounter = 0;
85 }
86
87 int
ripoffline(int line,int (* initfunction)(WINDOW *,int))88 ripoffline(int line, int (*initfunction)(WINDOW *, int))
89 {
90 if (_ripcounter < 5) {
91 _ripstruct[_ripcounter].line = line;
92 _ripstruct[_ripcounter++].initfunction = initfunction;
93 }
94 _rip_init = _init_rip_func;
95 return (OK);
96 }
97