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60de5df9 | 1 | /* |
46e9ea25 KB |
2 | * Copyright (c) 1983 Regents of the University of California. |
3 | * All rights reserved. | |
4 | * | |
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5 | * This code is derived from software contributed to Berkeley by |
6 | * Edward Wang at The University of California, Berkeley. | |
7 | * | |
87f529ec | 8 | * %sccs.include.redist.c% |
60de5df9 EW |
9 | */ |
10 | ||
46e9ea25 | 11 | #ifndef lint |
3dd3a9e5 | 12 | static char sccsid[] = "@(#)wwmove.c 3.11 (Berkeley) %G%"; |
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13 | #endif /* not lint */ |
14 | ||
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15 | #include "ww.h" |
16 | ||
17 | /* | |
18 | * Move a window. Should be unattached. | |
19 | */ | |
20 | wwmove(w, row, col) | |
21 | register struct ww *w; | |
22 | { | |
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23 | register dr, dc; |
24 | register i; | |
25 | ||
f2a77fe1 EW |
26 | dr = row - w->ww_w.t; |
27 | dc = col - w->ww_w.l; | |
28 | ||
29 | w->ww_w.t += dr; | |
30 | w->ww_w.b += dr; | |
31 | w->ww_w.l += dc; | |
32 | w->ww_w.r += dc; | |
33 | ||
34 | w->ww_b.t += dr; | |
35 | w->ww_b.b += dr; | |
36 | w->ww_b.l += dc; | |
37 | w->ww_b.r += dc; | |
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38 | |
39 | w->ww_i.t = MAX(w->ww_w.t, 0); | |
40 | w->ww_i.b = MIN(w->ww_w.b, wwnrow); | |
41 | w->ww_i.nr = w->ww_i.b - w->ww_i.t; | |
42 | w->ww_i.l = MAX(w->ww_w.l, 0); | |
43 | w->ww_i.r = MIN(w->ww_w.r, wwncol); | |
44 | w->ww_i.nc = w->ww_i.r - w->ww_i.l; | |
f2a77fe1 EW |
45 | |
46 | w->ww_cur.r += dr; | |
47 | w->ww_cur.c += dc; | |
48 | ||
49 | w->ww_win -= dr; | |
50 | for (i = w->ww_w.t; i < w->ww_w.b; i++) | |
51 | w->ww_win[i] -= dc; | |
f2a77fe1 EW |
52 | if (w->ww_fmap != 0) { |
53 | w->ww_fmap -= dr; | |
54 | for (i = w->ww_w.t; i < w->ww_w.b; i++) | |
55 | w->ww_fmap[i] -= dc; | |
56 | } | |
57 | w->ww_nvis -= dr; | |
c1e16556 EW |
58 | for (i = w->ww_i.t; i < w->ww_i.b; i++) { |
59 | register j = w->ww_i.l; | |
60 | register char *win = &w->ww_win[i][j]; | |
84ad208b | 61 | register char *smap = &wwsmap[i][j]; |
c1e16556 EW |
62 | int nvis = 0; |
63 | ||
84ad208b EW |
64 | for (; j < w->ww_i.r; j++, win++, smap++) |
65 | if (*win == 0 && *smap == w->ww_index) | |
c1e16556 EW |
66 | nvis++; |
67 | w->ww_nvis[i] = nvis; | |
68 | } | |
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69 | w->ww_buf -= dr; |
70 | for (i = w->ww_b.t; i < w->ww_b.b; i++) | |
71 | w->ww_buf[i] -= dc; | |
0d032a5f | 72 | } |