1 /* $NetBSD: wwcursor.c,v 1.7 2003/08/07 11:17:37 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[] = "@(#)wwcursor.c 8.1 (Berkeley) 6/6/93"; 39 #else 40 __RCSID("$NetBSD: wwcursor.c,v 1.7 2003/08/07 11:17:37 agc Exp $"); 41 #endif 42 #endif /* not lint */ 43 44 #include "ww.h" 45 46 void 47 wwcursor(struct ww *w, int on) 48 { 49 char *win; 50 51 if (on) { 52 if (ISSET(w->ww_wflags, WWW_HASCURSOR)) 53 return; 54 SET(w->ww_wflags, WWW_HASCURSOR); 55 } else { 56 if (!ISSET(w->ww_wflags, WWW_HASCURSOR)) 57 return; 58 CLR(w->ww_wflags, WWW_HASCURSOR); 59 } 60 if (wwcursormodes != 0) { 61 win = &w->ww_win[w->ww_cur.r][w->ww_cur.c]; 62 *win ^= wwcursormodes; 63 if (w->ww_cur.r < w->ww_i.t || w->ww_cur.r >= w->ww_i.b 64 || w->ww_cur.c < w->ww_i.l || w->ww_cur.c >= w->ww_i.r) 65 return; 66 if (wwsmap[w->ww_cur.r][w->ww_cur.c] == w->ww_index) { 67 if (*win == 0) 68 w->ww_nvis[w->ww_cur.r]++; 69 else if (*win == wwcursormodes) 70 w->ww_nvis[w->ww_cur.r]--; 71 wwns[w->ww_cur.r][w->ww_cur.c].c_m ^= wwcursormodes; 72 wwtouched[w->ww_cur.r] |= WWU_TOUCHED; 73 } 74 } 75 } 76 77 void 78 wwsetcursormodes(int new) 79 { 80 int i; 81 struct ww *w; 82 int old = wwcursormodes; 83 84 new &= wwavailmodes; 85 if (new == wwcursormodes) 86 return; 87 for (i = 0; i < NWW; i++) 88 if (wwindex[i] != 0 && 89 ISSET((w = wwindex[i])->ww_wflags, WWW_HASCURSOR)) { 90 wwcursor(w, 0); 91 wwcursormodes = new; 92 wwcursor(w, 1); 93 wwcursormodes = old; 94 } 95 wwcursormodes = new; 96 } 97