1 /*
2 * Copyright (c) 1981, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
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. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #ifndef lint
31 static char sccsid[] = "@(#)mvwin.c 8.2 (Berkeley) 5/4/94";
32 #endif /* not lint */
33
34 #include "curses.h"
35
36 /*
37 * mvwin --
38 * Relocate the starting position of a window.
39 */
40 int
mvwin(win,by,bx)41 mvwin(win, by, bx)
42 register WINDOW *win;
43 register int by, bx;
44 {
45 register WINDOW *orig;
46 register int dy, dx;
47
48 if (by + win->maxy > LINES || bx + win->maxx > COLS)
49 return (ERR);
50 dy = by - win->begy;
51 dx = bx - win->begx;
52 orig = win->orig;
53 if (orig == NULL) {
54 orig = win;
55 do {
56 win->begy += dy;
57 win->begx += dx;
58 __swflags(win);
59 win = win->nextp;
60 } while (win != orig);
61 } else {
62 if (by < orig->begy || win->maxy + dy > orig->maxy)
63 return (ERR);
64 if (bx < orig->begx || win->maxx + dx > orig->maxx)
65 return (ERR);
66 win->begy = by;
67 win->begx = bx;
68 __swflags(win);
69 __set_subwin(orig, win);
70 }
71 __touchwin(win);
72 return (OK);
73 }
74