overlay, not overwrite; bug report 4.3BSD/usr.lib/51, tahoe/usr.lib/2
[unix-history] / usr / src / lib / libcurses / deleteln.c
... / ...
CommitLineData
1/*
2 * Copyright (c) 1980 Regents of the University of California.
3 * All rights reserved. The Berkeley software License Agreement
4 * specifies the terms and conditions for redistribution.
5 */
6
7#ifndef lint
8static char sccsid[] = "@(#)deleteln.c 5.1 (Berkeley) %G%";
9#endif not lint
10
11# include "curses.ext"
12
13/*
14 * This routine deletes a line from the screen. It leaves
15 * (_cury,_curx) unchanged.
16 *
17 */
18wdeleteln(win)
19reg WINDOW *win;
20{
21 reg char *temp;
22 reg int y;
23 reg char *end;
24 reg int x;
25
26# ifdef DEBUG
27 fprintf(outf, "DELETELN(%0.2o)\n", win);
28# endif
29 temp = win->_y[win->_cury];
30 for (y = win->_cury; y < win->_maxy - 1; y++) {
31 if (win->_orig == NULL)
32 win->_y[y] = win->_y[y + 1];
33 else
34 bcopy(win->_y[y + 1], win->_y[y], win->_maxx);
35 touchline(win, y, 0, win->_maxx - 1);
36 }
37 if (win->_orig == NULL)
38 win->_y[y] = temp;
39 else
40 temp = win->_y[y];
41 for (end = &temp[win->_maxx]; temp < end; )
42 *temp++ = ' ';
43 touchline(win, win->_cury, 0, win->_maxx - 1);
44 if (win->_orig == NULL)
45 _id_subwins(win);
46 return OK;
47}