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/* $NetBSD: chgat.c,v 1.5 2012/09/28 06:05:19 blymn Exp $ */
/*
* Copyright (c) 2009 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Joerg Sonnenberger.
*
* 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.
*
* 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 FOUNDATION 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>
__RCSID("$NetBSD: chgat.c,v 1.5 2012/09/28 06:05:19 blymn Exp $");
#include "curses.h"
#include "curses_private.h"
int
chgat(int n, attr_t attr, short color, const void *opts)
{
return wchgat(stdscr, n, attr, color, opts);
}
int
mvchgat(int y, int x, int n, attr_t attr, short color,
const void *opts)
{
return mvwchgat(stdscr, y, x, n, attr, color, opts);
}
int
wchgat(WINDOW *win, int n, attr_t attr, short color, const void *opts)
{
return mvwchgat(win, win->cury, win->curx, n, attr, color, opts);
}
int
mvwchgat(WINDOW *win , int y, int x, int count, attr_t attr, short color,
const void *opts)
{
__LINE *lp;
__LDATA *lc;
if (x < 0 || y < 0)
return (ERR);
if (x >= win->maxx || y >= win->maxy)
return (ERR);
attr = (attr & ~__COLOR) | COLOR_PAIR(color);
if (count < 0 || count > win->maxx - x)
count = win->maxx - x;
#ifdef DEBUG
__CTRACE(__CTRACE_ATTR, "mvwchgat: x: %d y: %d count: %d attr: 0x%x "
"color pair %d\n", x, y, count, (attr & ~__COLOR),
PAIR_NUMBER(color));
#endif
lp = win->alines[y];
lc = &lp->line[x];
if (x + win->ch_off < *lp->firstchp)
*lp->firstchp = x + win->ch_off;
if (x + win->ch_off + count > *lp->lastchp)
*lp->lastchp = x + win->ch_off + count;
while (count-- > 0) {
lp->flags |= __ISDIRTY;
#ifdef HAVE_WCHAR
lc->attr = (lc->attr & ~WA_ATTRIBUTES) | attr;
#else
lc->attr = attr;
#endif
++lc;
}
return OK;
}
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