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 * @(#)wwcursor.c 8.1 (Berkeley) 6/6/93 37 * $FreeBSD: src/usr.bin/window/wwcursor.c,v 1.1.1.1.14.1 2001/05/17 09:45:01 obrien Exp $ 38 * $DragonFly: src/usr.bin/window/wwcursor.c,v 1.2 2003/06/17 04:29:34 dillon Exp $ 39 */ 40 41 #include "ww.h" 42 43 wwcursor(w, on) 44 register struct ww *w; 45 { 46 register char *win; 47 48 if (on) { 49 if (w->ww_hascursor) 50 return; 51 w->ww_hascursor = 1; 52 } else { 53 if (!w->ww_hascursor) 54 return; 55 w->ww_hascursor = 0; 56 } 57 if (wwcursormodes != 0) { 58 win = &w->ww_win[w->ww_cur.r][w->ww_cur.c]; 59 *win ^= wwcursormodes; 60 if (w->ww_cur.r < w->ww_i.t || w->ww_cur.r >= w->ww_i.b 61 || w->ww_cur.c < w->ww_i.l || w->ww_cur.c >= w->ww_i.r) 62 return; 63 if (wwsmap[w->ww_cur.r][w->ww_cur.c] == w->ww_index) { 64 if (*win == 0) 65 w->ww_nvis[w->ww_cur.r]++; 66 else if (*win == wwcursormodes) 67 w->ww_nvis[w->ww_cur.r]--; 68 wwns[w->ww_cur.r][w->ww_cur.c].c_m ^= wwcursormodes; 69 wwtouched[w->ww_cur.r] |= WWU_TOUCHED; 70 } 71 } 72 } 73 74 wwsetcursormodes(new) 75 register new; 76 { 77 register i; 78 register struct ww *w; 79 register old = wwcursormodes; 80 81 new &= wwavailmodes; 82 if (new == wwcursormodes) 83 return; 84 for (i = 0; i < NWW; i++) 85 if (wwindex[i] != 0 && (w = wwindex[i])->ww_hascursor) { 86 wwcursor(w, 0); 87 wwcursormodes = new; 88 wwcursor(w, 1); 89 wwcursormodes = old; 90 } 91 wwcursormodes = new; 92 } 93