1 /* $NetBSD: wwmove.c,v 1.7 2003/08/07 11:17:42 agc Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Edward Wang at The University of California, Berkeley. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 #ifndef lint 37 #if 0 38 static char sccsid[] = "@(#)wwmove.c 8.1 (Berkeley) 6/6/93"; 39 #else 40 __RCSID("$NetBSD: wwmove.c,v 1.7 2003/08/07 11:17:42 agc Exp $"); 41 #endif 42 #endif /* not lint */ 43 44 #include "ww.h" 45 46 /* 47 * Move a window. Should be unattached. 48 */ 49 void 50 wwmove(struct ww *w, int row, int col) 51 { 52 int dr, dc; 53 int i; 54 55 dr = row - w->ww_w.t; 56 dc = col - w->ww_w.l; 57 58 w->ww_w.t += dr; 59 w->ww_w.b += dr; 60 w->ww_w.l += dc; 61 w->ww_w.r += dc; 62 63 w->ww_b.t += dr; 64 w->ww_b.b += dr; 65 w->ww_b.l += dc; 66 w->ww_b.r += dc; 67 68 w->ww_i.t = MAX(w->ww_w.t, 0); 69 w->ww_i.b = MIN(w->ww_w.b, wwnrow); 70 w->ww_i.nr = w->ww_i.b - w->ww_i.t; 71 w->ww_i.l = MAX(w->ww_w.l, 0); 72 w->ww_i.r = MIN(w->ww_w.r, wwncol); 73 w->ww_i.nc = w->ww_i.r - w->ww_i.l; 74 75 w->ww_cur.r += dr; 76 w->ww_cur.c += dc; 77 78 w->ww_win -= dr; 79 for (i = w->ww_w.t; i < w->ww_w.b; i++) 80 w->ww_win[i] -= dc; 81 if (w->ww_fmap != 0) { 82 w->ww_fmap -= dr; 83 for (i = w->ww_w.t; i < w->ww_w.b; i++) 84 w->ww_fmap[i] -= dc; 85 } 86 w->ww_nvis -= dr; 87 for (i = w->ww_i.t; i < w->ww_i.b; i++) { 88 int j = w->ww_i.l; 89 char *win = &w->ww_win[i][j]; 90 unsigned char *smap = &wwsmap[i][j]; 91 int nvis = 0; 92 93 for (; j < w->ww_i.r; j++, win++, smap++) 94 if (*win == 0 && *smap == w->ww_index) 95 nvis++; 96 w->ww_nvis[i] = nvis; 97 } 98 w->ww_buf -= dr; 99 for (i = w->ww_b.t; i < w->ww_b.b; i++) 100 w->ww_buf[i] -= dc; 101 } 102