BSD 4_3_Net_2 release
[unix-history] / usr / src / lib / libcurses / mvwin.c
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87c6fcf8 1/*
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2 * Copyright (c) 1981 Regents of the University of California.
3 * All rights reserved.
4 *
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5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
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32 */
33
34#ifndef lint
1c15e888 35static char sccsid[] = "@(#)mvwin.c 5.4 (Berkeley) 6/1/90";
2f14f200 36#endif /* not lint */
87c6fcf8 37
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38# include "curses.ext"
39
40/*
41 * relocate the starting position of a window
42 *
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43 */
44
45mvwin(win, by, bx)
46reg WINDOW *win;
47reg int by, bx; {
48
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49 register WINDOW *orig;
50 register int dy, dx;
51
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52 if (by + win->_maxy > LINES || bx + win->_maxx > COLS)
53 return ERR;
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54 dy = by - win->_begy;
55 dx = bx - win->_begx;
56 orig = win->_orig;
57 if (orig == NULL) {
58 orig = win;
59 do {
60 win->_begy += dy;
61 win->_begx += dx;
62 _swflags_(win);
63 win = win->_nextp;
64 } while (win != orig);
65 }
66 else {
67 if (by < orig->_begy || win->_maxy + dy > orig->_maxy)
68 return ERR;
69 if (bx < orig->_begx || win->_maxx + dx > orig->_maxx)
70 return ERR;
71 win->_begy = by;
72 win->_begx = bx;
73 _swflags_(win);
74 _set_subwin_(orig, win);
75 }
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76 touchwin(win);
77 return OK;
78}