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[netbsd-mini2440.git] / lib / libcurses / chgat.c
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1 /* $NetBSD: chgat.c,v 1.3 2009/07/09 22:08:45 joerg Exp $ */
3 /*
4 * Copyright (c) 2009 The NetBSD Foundation, Inc.
5 * All rights reserved.
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Joerg Sonnenberger.
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. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
32 #include <sys/cdefs.h>
33 __RCSID("$NetBSD: chgat.c,v 1.3 2009/07/09 22:08:45 joerg Exp $");
35 #include "curses.h"
36 #include "curses_private.h"
38 int
39 chgat(int n, attr_t attr, short color, const void *opts)
41 return wchgat(stdscr, n, attr, color, opts);
44 int
45 mvchgat(int y, int x, int n, attr_t attr, short color,
46 const void *opts)
48 return mvwchgat(stdscr, y, x, n, attr, color, opts);
51 int
52 wchgat(WINDOW *win, int n, attr_t attr, short color, const void *opts)
54 return mvwchgat(win, win->cury, win->curx, n, attr, color, opts);
57 int
58 mvwchgat(WINDOW *win , int y, int x, int count, attr_t attr, short color,
59 const void *opts)
61 __LINE *lp;
62 __LDATA *lc;
64 if (x < 0 || y < 0)
65 return (ERR);
66 if (x >= win->maxx || y >= win->maxy)
67 return (ERR);
69 attr = (attr & ~__COLOR) | COLOR_PAIR(color);
71 if (count < 0 || count > win->maxx - x)
72 count = win->maxx - x;
74 lp = win->alines[y];
75 lc = &lp->line[x];
77 if (x + win->ch_off < *lp->firstchp)
78 *lp->firstchp = x + win->ch_off;
79 if (x + win->ch_off + count > *lp->lastchp)
80 *lp->lastchp = x + win->ch_off + count;
82 while (count-- > 0) {
83 lp->flags |= __ISDIRTY;
84 #ifdef HAVE_WCHAR
85 lc->attr = (lc->attr & ~WA_ATTRIBUTES) | attr;
86 #else
87 lc->attr = attr;
88 #endif
89 ++lc;
92 return OK;