| 1 | #ifndef lint |
| 2 | static char sccsid[] = "@(#)wwmove.c 3.7 %G%"; |
| 3 | #endif |
| 4 | |
| 5 | /* |
| 6 | * Copyright (c) 1983 Regents of the University of California, |
| 7 | * All rights reserved. Redistribution permitted subject to |
| 8 | * the terms of the Berkeley Software License Agreement. |
| 9 | */ |
| 10 | |
| 11 | #include "ww.h" |
| 12 | |
| 13 | /* |
| 14 | * Move a window. Should be unattached. |
| 15 | */ |
| 16 | wwmove(w, row, col) |
| 17 | register struct ww *w; |
| 18 | { |
| 19 | register dr, dc; |
| 20 | register i; |
| 21 | |
| 22 | dr = row - w->ww_w.t; |
| 23 | dc = col - w->ww_w.l; |
| 24 | |
| 25 | w->ww_w.t += dr; |
| 26 | w->ww_w.b += dr; |
| 27 | w->ww_w.l += dc; |
| 28 | w->ww_w.r += dc; |
| 29 | |
| 30 | w->ww_b.t += dr; |
| 31 | w->ww_b.b += dr; |
| 32 | w->ww_b.l += dc; |
| 33 | w->ww_b.r += dc; |
| 34 | |
| 35 | w->ww_i.t = MAX(w->ww_w.t, 0); |
| 36 | w->ww_i.b = MIN(w->ww_w.b, wwnrow); |
| 37 | w->ww_i.nr = w->ww_i.b - w->ww_i.t; |
| 38 | w->ww_i.l = MAX(w->ww_w.l, 0); |
| 39 | w->ww_i.r = MIN(w->ww_w.r, wwncol); |
| 40 | w->ww_i.nc = w->ww_i.r - w->ww_i.l; |
| 41 | |
| 42 | w->ww_cur.r += dr; |
| 43 | w->ww_cur.c += dc; |
| 44 | |
| 45 | w->ww_win -= dr; |
| 46 | for (i = w->ww_w.t; i < w->ww_w.b; i++) |
| 47 | w->ww_win[i] -= dc; |
| 48 | if (w->ww_fmap != 0) { |
| 49 | w->ww_fmap -= dr; |
| 50 | for (i = w->ww_w.t; i < w->ww_w.b; i++) |
| 51 | w->ww_fmap[i] -= dc; |
| 52 | } |
| 53 | w->ww_nvis -= dr; |
| 54 | for (i = w->ww_i.t; i < w->ww_i.b; i++) { |
| 55 | register j = w->ww_i.l; |
| 56 | register char *win = &w->ww_win[i][j]; |
| 57 | register char *smap = &wwsmap[i][j]; |
| 58 | int nvis = 0; |
| 59 | |
| 60 | for (; j < w->ww_i.r; j++, win++, smap++) |
| 61 | if (*win == 0 && *smap == w->ww_index) |
| 62 | nvis++; |
| 63 | w->ww_nvis[i] = nvis; |
| 64 | } |
| 65 | w->ww_buf -= dr; |
| 66 | for (i = w->ww_b.t; i < w->ww_b.b; i++) |
| 67 | w->ww_buf[i] -= dc; |
| 68 | } |