Annotation of src/usr.bin/window/wwclreol.c, Revision 1.6
1.6 ! millert 1: /* $OpenBSD: wwclreol.c,v 1.5 2001/11/19 19:02:18 mpech Exp $ */
1.2 niklas 2: /* $NetBSD: wwclreol.c,v 1.4 1996/02/08 21:48:58 mycroft Exp $ */
1.1 deraadt 3:
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.
1.6 ! millert 19: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 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:
36: #ifndef lint
37: #if 0
38: static char sccsid[] = "@(#)wwclreol.c 8.1 (Berkeley) 6/6/93";
39: #else
1.6 ! millert 40: static char rcsid[] = "$OpenBSD: wwclreol.c,v 1.5 2001/11/19 19:02:18 mpech Exp $";
1.1 deraadt 41: #endif
42: #endif /* not lint */
43:
44: #include "ww.h"
45: #include "tt.h"
46:
47: /*
48: * Clear w to the end of line.
49: * If cleared is true, then the screen line has already been cleared.
50: */
51: wwclreol1(w, row, col, cleared)
1.5 mpech 52: struct ww *w;
1.1 deraadt 53: int row, col;
54: char cleared;
55: {
1.5 mpech 56: int i;
1.1 deraadt 57:
58: /*
59: * Clear the buffer right off
60: */
61: {
1.5 mpech 62: union ww_char *buf;
1.1 deraadt 63:
64: buf = &w->ww_buf[row][col];
65: for (i = w->ww_b.r - col; --i >= 0;)
66: buf++->c_w = ' ';
67: }
68:
69: /*
70: * If can't see it, just return.
71: */
72: if (row < w->ww_i.t || row >= w->ww_i.b
73: || w->ww_i.r <= 0 || w->ww_i.r <= col)
74: return;
75:
76: if (col < w->ww_i.l)
77: col = w->ww_i.l;
78:
79: /*
80: * Now fix wwns.
81: */
82: {
1.5 mpech 83: union ww_char *s;
84: unsigned char *smap;
85: char *win;
1.1 deraadt 86:
87: i = col;
88: smap = &wwsmap[row][i];
89: s = &wwns[row][i];
90: win = &w->ww_win[row][i];
91: for (i = w->ww_i.r - i; --i >= 0;)
92: if (*smap++ == w->ww_index)
93: s++->c_w = ' ' | *win++ << WWC_MSHIFT;
94: else
95: s++, win++;
96: }
97: if (!cleared)
98: wwtouched[row] |= WWU_TOUCHED;
99: }