xref: /illumos-gate/usr/src/lib/libcurses/screen/slk_refresh.c (revision 8119dad84d6416f13557b0ba8e2aaf9064cbcfd3)
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 /* Update the soft-label window. */
46 
47 int
48 slk_refresh(void)
49 {
50 	if (_slk_update()) {
51 		return (wrefresh(SP->slk->_win));
52 	}
53 	return (0);
54 }
55 
56 /* Update soft labels. Return TRUE if a window was updated. */
57 
58 int
59 _slk_update(void)
60 {
61 	WINDOW	*win;
62 	SLK_MAP	*slk;
63 	int	i;
64 
65 	if ((slk = SP->slk) == NULL || (slk->_changed != TRUE))
66 		return (FALSE);
67 
68 	win = slk->_win;
69 	for (i = 0; i < slk->_num; ++i)
70 		if (slk->_lch[i]) {
71 			if (win)
72 				(void) mvwaddstr(win, 0, slk->_labx[i],
73 				    slk->_ldis[i]);
74 			else
75 				_PUTS(tparm_p2(plab_norm, i + 1,
76 				    (long)slk->_ldis[i]), 1);
77 
78 			slk->_lch[i] = FALSE;
79 		}
80 	if (!win) {
81 		_PUTS(label_on, 1);
82 		/*
83 		 * Added an fflush because if application code calls a
84 		 * slk_refresh or a slk_noutrefresh
85 		 * and a doupdate nothing will get flushed since this
86 		 * information is not being kept in curscr or _virtscr.
87 		 */
88 		(void) fflush(SP->term_file);
89 	}
90 
91 	slk->_changed = FALSE;
92 
93 	return (win ? TRUE : FALSE);
94 }
95