1 /* $NetBSD: curs_set.c,v 1.5 2001/06/13 10:45:57 wiz Exp $ */ 2 3 /*- 4 * Copyright (c) 1998-2000 Brett Lymn 5 * (blymn@baea.com.au, brett_lymn@yahoo.com.au) 6 * All rights reserved. 7 * 8 * This code has been donated to The NetBSD Foundation by the Author. 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. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __RCSID("$NetBSD: curs_set.c,v 1.5 2001/06/13 10:45:57 wiz Exp $"); 35 #endif /* not lint */ 36 37 #include "curses.h" 38 #include "curses_private.h" 39 40 static int old_mode = 2; /* cursor is set to high vis on start */ 41 42 /* 43 * curs_set -- 44 * Set the visibility of the cursor, 0 means invisible, 1 means normal 45 * visibility and 2 means high visibility. Return the previous 46 * visibility iff the terminal supports the new visibility otherwise 47 * return ERR. 48 */ 49 int 50 curs_set(int visibility) 51 { 52 int old_one; 53 54 old_one = old_mode; 55 switch (visibility) { 56 case 0: /* invisible */ 57 if (__tc_vi != NULL) { 58 #ifdef DEBUG 59 __CTRACE("curs_set: invisible\n"); 60 #endif 61 old_mode = 0; 62 tputs(__tc_vi, 0, __cputchar); 63 return old_one; 64 } 65 break; 66 67 case 1: /* normal */ 68 if (__tc_ve != NULL) { 69 #ifdef DEBUG 70 __CTRACE("curs_set: normal\n"); 71 #endif 72 old_mode = 1; 73 tputs(__tc_ve, 0, __cputchar); 74 return old_one; 75 } 76 break; 77 78 case 2: /* high visibility */ 79 if (__tc_vs != NULL) { 80 #ifdef DEBUG 81 __CTRACE("curs_set: high vis\n"); 82 #endif 83 old_mode = 2; 84 tputs(__tc_vs, 0, __cputchar); 85 return old_one; 86 } 87 break; 88 89 default: 90 break; 91 } 92 93 return ERR; 94 } 95 96 /* 97 * __restore_cursor_vis -- 98 * Restore the old cursor visibility. 99 */ 100 void 101 __restore_cursor_vis(void) 102 { 103 curs_set(old_mode); 104 } 105 106