Home | History | Annotate | Line # | Download | only in libcurses
curs_set.c revision 1.1 
      1 /*	$NetBSD: curs_set.c,v 1.1 2000/04/22 13:29:01 blymn Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998-2000 Brett Lymn
      5  *                         (blymn (at) baea.com.au, brett_lymn (at) 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 withough 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 "curses.h"
     33 #include "curses_private.h"
     34 
     35 static int old_mode = 1; /* assume cursor normal on start */
     36 
     37 /*
     38  * curs_set --
     39  *    Set the visibility of the cursor, 0 means invisible, 1 means normal
     40  *    visibility and 2 means high visibility.  Return the previous
     41  *    visibility iff the terminal supports the new visibility otherwise
     42  *    return ERR.
     43  */
     44 int
     45 curs_set(int visibility)
     46 {
     47 	int old_one;
     48 
     49 	old_one = old_mode;
     50 	switch (visibility) {
     51 		case 0: /* invisible */
     52 			if (VI != NULL) {
     53 #ifdef DEBUG
     54 				__CTRACE("curs_set: invisible\n");
     55 #endif
     56 				old_mode = 0;
     57 				tputs(VI, 0, __cputchar);
     58 				return old_one;
     59 			}
     60 			break;
     61 
     62 		case 1: /* normal */
     63 			if (VE != NULL) {
     64 #ifdef DEBUG
     65 				__CTRACE("curs_set: normal\n");
     66 #endif
     67 				old_mode = 1;
     68 				tputs(VE, 0, __cputchar);
     69 				return old_one;
     70 			}
     71 			break;
     72 
     73 		case 2: /* high visibility */
     74 			if (VS != NULL) {
     75 #ifdef DEBUG
     76 				__CTRACE("curs_set: high vis\n");
     77 #endif
     78 				old_mode = 2;
     79 				tputs(VS, 0, __cputchar);
     80 				return old_one;
     81 			}
     82 			break;
     83 
     84 		default:
     85 			break;
     86 	}
     87 
     88 	return ERR;
     89 }
     90 
     91 
     92