bring up to revision 7 for tahoe release
[unix-history] / usr / src / lib / libcurses / insertln.c
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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[] = "@(#)insertln.c 5.1 (Berkeley) %G%";
9#endif not lint
10
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11# include "curses.ext"
12
13/*
14 * This routine performs an insert-line on the window, leaving
15 * (_cury,_curx) unchanged.
16 *
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17 */
18winsertln(win)
19reg WINDOW *win; {
20
21 reg char *temp;
22 reg int y;
23 reg char *end;
e3fd04f0 24 reg int x;
259c2c61 25
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JB
26#ifdef DEBUG
27 fprintf(outf, "INSERTLN(%0.2o)\n", win);
28#endif
29 if (win->_orig == NULL)
30 temp = win->_y[win->_maxy - 1];
259c2c61 31 for (y = win->_maxy - 1; y > win->_cury; --y) {
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JB
32 if (win->_orig == NULL)
33 win->_y[y] = win->_y[y - 1];
34 else
35 bcopy(win->_y[y - 1], win->_y[y], win->_maxx);
36 touchline(win, y, 0, win->_maxx - 1);
259c2c61 37 }
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JB
38 if (win->_orig == NULL)
39 win->_y[y] = temp;
40 else
41 temp = win->_y[y];
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42 for (end = &temp[win->_maxx]; temp < end; )
43 *temp++ = ' ';
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44 touchline(win, y, 0, win->_maxx - 1);
45 if (win->_orig == NULL)
46 _id_subwins(win);
259c2c61 47}