minix/lib/libcurses/curs_set.c

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/* $NetBSD: curs_set.c,v 1.10 2011/03/30 09:47:02 blymn Exp $ */
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/*-
* Copyright (c) 1998-2000 Brett Lymn
* (blymn@baea.com.au, brett_lymn@yahoo.com.au)
* All rights reserved.
*
* This code has been donated to The NetBSD Foundation by the Author.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
*/
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#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: curs_set.c,v 1.10 2011/03/30 09:47:02 blymn Exp $");
#endif /* not lint */
#include "curses.h"
#include "curses_private.h"
/*
* curs_set --
* Set the visibility of the cursor, 0 means invisible, 1 means normal
* visibility and 2 means high visibility. Return the previous
* visibility iff the terminal supports the new visibility otherwise
* return ERR.
*/
int
curs_set(int visibility)
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{
int old_one;
old_one = _cursesi_screen->old_mode;
switch (visibility) {
case 0: /* invisible */
if (cursor_invisible != NULL) {
#ifdef DEBUG
__CTRACE(__CTRACE_MISC,
"curs_set: invisible\n");
#endif
_cursesi_screen->old_mode = 0;
tputs(cursor_invisible, 0, __cputchar);
fflush(_cursesi_screen->outfd);
return old_one;
}
break;
case 1: /* normal */
if (cursor_normal != NULL) {
#ifdef DEBUG
__CTRACE(__CTRACE_MISC, "curs_set: normal\n");
#endif
_cursesi_screen->old_mode = 1;
tputs(cursor_normal, 0, __cputchar);
fflush(_cursesi_screen->outfd);
return old_one;
}
break;
case 2: /* high visibility */
if (cursor_visible != NULL) {
#ifdef DEBUG
__CTRACE(__CTRACE_MISC,
"curs_set: high vis\n");
#endif
_cursesi_screen->old_mode = 2;
tputs(cursor_visible, 0, __cputchar);
fflush(_cursesi_screen->outfd);
return old_one;
}
break;
default:
break;
}
return ERR;
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}
/*
* __restore_cursor_vis --
* Restore the old cursor visibility.
*/
void
__restore_cursor_vis(void)
{
curs_set(_cursesi_screen->old_mode);
}