186d7f5d3SJohn Marino /* @(#)wwclreol.c 8.1 (Berkeley) 6/6/93 */
286d7f5d3SJohn Marino /* $NetBSD: wwclreol.c,v 1.7 2003/08/07 11:17:37 agc Exp $ */
386d7f5d3SJohn Marino
486d7f5d3SJohn Marino /*
586d7f5d3SJohn Marino * Copyright (c) 1983, 1993
686d7f5d3SJohn Marino * The Regents of the University of California. All rights reserved.
786d7f5d3SJohn Marino *
886d7f5d3SJohn Marino * This code is derived from software contributed to Berkeley by
986d7f5d3SJohn Marino * Edward Wang at The University of California, Berkeley.
1086d7f5d3SJohn Marino *
1186d7f5d3SJohn Marino * Redistribution and use in source and binary forms, with or without
1286d7f5d3SJohn Marino * modification, are permitted provided that the following conditions
1386d7f5d3SJohn Marino * are met:
1486d7f5d3SJohn Marino * 1. Redistributions of source code must retain the above copyright
1586d7f5d3SJohn Marino * notice, this list of conditions and the following disclaimer.
1686d7f5d3SJohn Marino * 2. Redistributions in binary form must reproduce the above copyright
1786d7f5d3SJohn Marino * notice, this list of conditions and the following disclaimer in the
1886d7f5d3SJohn Marino * documentation and/or other materials provided with the distribution.
1986d7f5d3SJohn Marino * 3. Neither the name of the University nor the names of its contributors
2086d7f5d3SJohn Marino * may be used to endorse or promote products derived from this software
2186d7f5d3SJohn Marino * without specific prior written permission.
2286d7f5d3SJohn Marino *
2386d7f5d3SJohn Marino * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
2486d7f5d3SJohn Marino * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
2586d7f5d3SJohn Marino * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
2686d7f5d3SJohn Marino * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
2786d7f5d3SJohn Marino * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2886d7f5d3SJohn Marino * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2986d7f5d3SJohn Marino * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
3086d7f5d3SJohn Marino * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
3186d7f5d3SJohn Marino * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
3286d7f5d3SJohn Marino * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
3386d7f5d3SJohn Marino * SUCH DAMAGE.
3486d7f5d3SJohn Marino */
3586d7f5d3SJohn Marino
3686d7f5d3SJohn Marino #include "ww.h"
3786d7f5d3SJohn Marino #include "tt.h"
3886d7f5d3SJohn Marino
3986d7f5d3SJohn Marino /*
4086d7f5d3SJohn Marino * Clear w to the end of line.
4186d7f5d3SJohn Marino * If cleared is true, then the screen line has already been cleared.
4286d7f5d3SJohn Marino */
4386d7f5d3SJohn Marino void
wwclreol1(struct ww * w,int row,int col,char cleared)4486d7f5d3SJohn Marino wwclreol1(struct ww *w, int row, int col, char cleared)
4586d7f5d3SJohn Marino {
4686d7f5d3SJohn Marino int i;
4786d7f5d3SJohn Marino
4886d7f5d3SJohn Marino /*
4986d7f5d3SJohn Marino * Clear the buffer right off
5086d7f5d3SJohn Marino */
5186d7f5d3SJohn Marino {
5286d7f5d3SJohn Marino union ww_char *buf;
5386d7f5d3SJohn Marino
5486d7f5d3SJohn Marino buf = &w->ww_buf[row][col];
5586d7f5d3SJohn Marino for (i = w->ww_b.r - col; --i >= 0;)
5686d7f5d3SJohn Marino buf++->c_w = ' ';
5786d7f5d3SJohn Marino }
5886d7f5d3SJohn Marino
5986d7f5d3SJohn Marino /*
6086d7f5d3SJohn Marino * If can't see it, just return.
6186d7f5d3SJohn Marino */
6286d7f5d3SJohn Marino if (row < w->ww_i.t || row >= w->ww_i.b
6386d7f5d3SJohn Marino || w->ww_i.r <= 0 || w->ww_i.r <= col)
6486d7f5d3SJohn Marino return;
6586d7f5d3SJohn Marino
6686d7f5d3SJohn Marino if (col < w->ww_i.l)
6786d7f5d3SJohn Marino col = w->ww_i.l;
6886d7f5d3SJohn Marino
6986d7f5d3SJohn Marino /*
7086d7f5d3SJohn Marino * Now fix wwns.
7186d7f5d3SJohn Marino */
7286d7f5d3SJohn Marino {
7386d7f5d3SJohn Marino union ww_char *s;
7486d7f5d3SJohn Marino unsigned char *smap;
7586d7f5d3SJohn Marino char *win;
7686d7f5d3SJohn Marino
7786d7f5d3SJohn Marino i = col;
7886d7f5d3SJohn Marino smap = &wwsmap[row][i];
7986d7f5d3SJohn Marino s = &wwns[row][i];
8086d7f5d3SJohn Marino win = &w->ww_win[row][i];
8186d7f5d3SJohn Marino for (i = w->ww_i.r - i; --i >= 0;)
8286d7f5d3SJohn Marino if (*smap++ == w->ww_index)
8386d7f5d3SJohn Marino s++->c_w = ' ' | *win++ << WWC_MSHIFT;
8486d7f5d3SJohn Marino else
8586d7f5d3SJohn Marino s++, win++;
8686d7f5d3SJohn Marino }
8786d7f5d3SJohn Marino if (!cleared)
8886d7f5d3SJohn Marino wwtouched[row] |= WWU_TOUCHED;
8986d7f5d3SJohn Marino }
90