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/* $NetBSD: cchar.c,v 1.5 2010/12/16 17:42:28 wiz Exp $ */
/*
* Copyright (c) 2005 The NetBSD Foundation Inc.
* All rights reserved.
*
* This code is derived from code donated to the NetBSD Foundation
* by Ruibiao Qiu <ruibiao@arl.wustl.edu,ruibiao@gmail.com>.
*
*
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
* CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: cchar.c,v 1.5 2010/12/16 17:42:28 wiz Exp $");
#endif /* not lint */
#include <string.h>
#include "curses.h"
#include "curses_private.h"
/*
* getcchar --
* get a wide-character string and rendition from a cchar_t
*/
int
getcchar(const cchar_t *wcval, wchar_t *wch, attr_t *attrs,
short *color_pair, void *opts)
{
#ifndef HAVE_WCHAR
return ERR;
#else
wchar_t *wp;
size_t len;
if ( opts )
return ERR;
len = (wp = wmemchr(wcval->vals, L'\0', CCHARW_MAX))
? wp - wcval->vals : CCHARW_MAX;
if (wch == NULL)
return (int) len;
if (attrs == 0 || color_pair == 0)
return ERR;
if (len > 0) {
*attrs = wcval->attributes;
*color_pair = COLOR_PAIR( wcval -> attributes );
wmemcpy(wch, wcval->vals, (unsigned) len);
wch[len] = L'\0';
}
return OK;
#endif /* HAVE_WCHAR */
}
/*
* setcchar --
* set cchar_t from a wide-character string and rendition
*/
int
setcchar(cchar_t *wcval, const wchar_t *wch, const attr_t attrs,
short color_pair, const void *opts)
{
#ifndef HAVE_WCHAR
return ERR;
#else
int i;
size_t len;
if (opts || (len = wcslen(wch)) > CCHARW_MAX
|| (len > 1 && wcwidth(wch[0]) < 0)) {
return ERR;
}
/*
* If we have a following spacing-character, stop at that point. We
* are only interested in adding non-spacing characters.
*/
for (i = 1; i < len; ++i) {
if (wcwidth(wch[i]) != 0) {
len = i;
break;
}
}
memset(wcval, 0, sizeof(*wcval));
if (len != 0) {
wcval -> attributes = attrs | color_pair;
wcval -> elements = 1;
memcpy(&wcval->vals, wch, len * sizeof(wchar_t));
}
return OK;
#endif /* HAVE_WCHAR */
}
void
__cursesi_chtype_to_cchar(chtype in, cchar_t *out)
{
unsigned int idx;
if (in & __ACS_IS_WACS) {
idx = in & __CHARTEXT;
if (idx < NUM_ACS) {
memcpy(out, &_wacs_char[idx], sizeof(cchar_t));
out->attributes |= in & __ATTRIBUTES;
return;
}
}
out->vals[0] = in & __CHARTEXT;
out->attributes = in & __ATTRIBUTES;
out->elements = 1;
}
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