window(1): Remove __RCSID & friends.
[dragonfly.git] / usr.bin / window / wwclreol.c
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2c872e05 1/* @(#)wwclreol.c 8.1 (Berkeley) 6/6/93 */
abecab39
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2/* $NetBSD: wwclreol.c,v 1.7 2003/08/07 11:17:37 agc Exp $ */
3
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4/*
5 * Copyright (c) 1983, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Edward Wang at The University of California, Berkeley.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
abecab39 19 * 3. Neither the name of the University nor the names of its contributors
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20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
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36#include "ww.h"
37#include "tt.h"
38
39/*
40 * Clear w to the end of line.
41 * If cleared is true, then the screen line has already been cleared.
42 */
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43void
44wwclreol1(struct ww *w, int row, int col, char cleared)
984263bc 45{
abecab39 46 int i;
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47
48 /*
49 * Clear the buffer right off
50 */
51 {
abecab39 52 union ww_char *buf;
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53
54 buf = &w->ww_buf[row][col];
55 for (i = w->ww_b.r - col; --i >= 0;)
56 buf++->c_w = ' ';
57 }
58
59 /*
60 * If can't see it, just return.
61 */
62 if (row < w->ww_i.t || row >= w->ww_i.b
63 || w->ww_i.r <= 0 || w->ww_i.r <= col)
64 return;
65
66 if (col < w->ww_i.l)
67 col = w->ww_i.l;
68
69 /*
70 * Now fix wwns.
71 */
72 {
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73 union ww_char *s;
74 unsigned char *smap;
75 char *win;
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76
77 i = col;
78 smap = &wwsmap[row][i];
79 s = &wwns[row][i];
80 win = &w->ww_win[row][i];
81 for (i = w->ww_i.r - i; --i >= 0;)
82 if (*smap++ == w->ww_index)
83 s++->c_w = ' ' | *win++ << WWC_MSHIFT;
84 else
85 s++, win++;
86 }
87 if (!cleared)
88 wwtouched[row] |= WWU_TOUCHED;
89}