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 #pragma ident "%Z%%M% %I% %E% SMI"
41
42 /*LINTLIBRARY*/
43
44 #include <sys/types.h>
45 #include "curses_inc.h"
46
47 /* This routine erases everything on the window. */
48 int
wclrtobot(WINDOW * win)49 wclrtobot(WINDOW *win)
50 {
51 bool savimmed, savsync;
52 int cury = win->_cury;
53 short curx = win->_curx;
54
55 if (win != curscr) {
56 savimmed = win->_immed;
57 savsync = win->_sync;
58 win->_immed = win->_sync = FALSE;
59 }
60
61 /* set region to be clear */
62 if (cury >= win->_tmarg && cury <= win->_bmarg)
63 win->_cury = win->_bmarg;
64 else
65 win->_cury = win->_maxy - 1;
66
67 win->_curx = 0;
68 for (; win->_cury > cury; win->_cury--)
69 (void) wclrtoeol(win);
70 win->_curx = curx;
71 (void) wclrtoeol(win);
72
73 if (win == curscr)
74 return (OK);
75
76 /* not curscr */
77 win->_sync = savsync;
78
79 if (win->_sync)
80 wsyncup(win);
81
82 win->_flags |= _WINCHANGED;
83 return ((win->_immed = savimmed) ? wrefresh(win) : OK);
84 }
85