Files
retrobsd/src/libcurses/insertln.c
2014-04-09 14:27:18 +01:00

43 lines
982 B
C

/*
* Copyright (c) 1980 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/
#include "curses.ext"
#include <strings.h>
/*
* This routine performs an insert-line on the window, leaving
* (_cury,_curx) unchanged.
*/
void
winsertln(win)
reg WINDOW *win;
{
reg char *temp = 0;
reg int y;
reg char *end;
#ifdef DEBUG
fprintf(outf, "INSERTLN(%0.2o)\n", win);
#endif
if (win->_orig == NULL)
temp = win->_y[win->_maxy - 1];
for (y = win->_maxy - 1; y > win->_cury; --y) {
if (win->_orig == NULL)
win->_y[y] = win->_y[y - 1];
else
bcopy(win->_y[y - 1], win->_y[y], win->_maxx);
touchline(win, y, 0, win->_maxx - 1);
}
if (win->_orig == NULL)
win->_y[y] = temp;
else
temp = win->_y[y];
for (end = &temp[win->_maxx]; temp < end; )
*temp++ = ' ';
touchline(win, y, 0, win->_maxx - 1);
if (win->_orig == NULL)
_id_subwins(win);
}