1 /* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Edward Wang at The University of California, Berkeley. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)wwmove.c 8.1 (Berkeley) 6/6/93 37 * $FreeBSD: src/usr.bin/window/wwmove.c,v 1.1.1.1.14.1 2001/05/17 09:45:01 obrien Exp $ 38 * $DragonFly: src/usr.bin/window/wwmove.c,v 1.2 2003/06/17 04:29:34 dillon Exp $ 39 */ 40 41 #include "ww.h" 42 43 /* 44 * Move a window. Should be unattached. 45 */ 46 wwmove(w, row, col) 47 register struct ww *w; 48 { 49 register dr, dc; 50 register i; 51 52 dr = row - w->ww_w.t; 53 dc = col - w->ww_w.l; 54 55 w->ww_w.t += dr; 56 w->ww_w.b += dr; 57 w->ww_w.l += dc; 58 w->ww_w.r += dc; 59 60 w->ww_b.t += dr; 61 w->ww_b.b += dr; 62 w->ww_b.l += dc; 63 w->ww_b.r += dc; 64 65 w->ww_i.t = MAX(w->ww_w.t, 0); 66 w->ww_i.b = MIN(w->ww_w.b, wwnrow); 67 w->ww_i.nr = w->ww_i.b - w->ww_i.t; 68 w->ww_i.l = MAX(w->ww_w.l, 0); 69 w->ww_i.r = MIN(w->ww_w.r, wwncol); 70 w->ww_i.nc = w->ww_i.r - w->ww_i.l; 71 72 w->ww_cur.r += dr; 73 w->ww_cur.c += dc; 74 75 w->ww_win -= dr; 76 for (i = w->ww_w.t; i < w->ww_w.b; i++) 77 w->ww_win[i] -= dc; 78 if (w->ww_fmap != 0) { 79 w->ww_fmap -= dr; 80 for (i = w->ww_w.t; i < w->ww_w.b; i++) 81 w->ww_fmap[i] -= dc; 82 } 83 w->ww_nvis -= dr; 84 for (i = w->ww_i.t; i < w->ww_i.b; i++) { 85 register j = w->ww_i.l; 86 register char *win = &w->ww_win[i][j]; 87 register char *smap = &wwsmap[i][j]; 88 int nvis = 0; 89 90 for (; j < w->ww_i.r; j++, win++, smap++) 91 if (*win == 0 && *smap == w->ww_index) 92 nvis++; 93 w->ww_nvis[i] = nvis; 94 } 95 w->ww_buf -= dr; 96 for (i = w->ww_b.t; i < w->ww_b.b; i++) 97 w->ww_buf[i] -= dc; 98 } 99