[unix-history] / usr / src / lib / libcurses / deleteln.c

/*
* Copyright (c) 1981 Regents of the University of California.
* All rights reserved.
*
* %sccs.include.redist.c%
*/

#ifndef lint
static char sccsid[] = "@(#)deleteln.c  5.7 (Berkeley) %G%";
#endif  /* not lint */

#include <curses.h>
#include <string.h>

/*
* wdeleteln --
*      Delete a line from the screen.  It leaves (_cury, _curx) unchanged.
*/
int
wdeleteln(win)
       register WINDOW *win;
{
       register int y;
       register char *temp;

#ifdef DEBUG
       __TRACE("deleteln: (%0.2o)\n", win);
#endif
       temp = win->_y[win->_cury];
       for (y = win->_cury; y < win->_maxy - 1; 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];
       (void)memset(temp, ' ', &temp[win->_maxx] - temp);
       touchline(win, win->_cury, 0, win->_maxx - 1);
       if (win->_orig == NULL)
               __id_subwins(win);
       return (OK);
}