usr/src/lib/libcurses/box.c

/*
 * Copyright (c) 1981 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that this notice is preserved and that due credit is given
 * to the University of California at Berkeley. The name of the University
 * may not be used to endorse or promote products derived from this
 * software without specific prior written permission. This software
 * is provided ``as is'' without express or implied warranty.
 */

#ifndef lint
static char sccsid[] = "@(#)box.c       5.2 (Berkeley) %G%";
#endif /* not lint */

# include       "curses.ext"

/*
 *      This routine draws a box around the given window with "vert"
 * as the vertical delimiting char, and "hor", as the horizontal one.
 *
 */
box(win, vert, hor)
reg WINDOW      *win;
char            vert, hor; {

        reg int         i;
        reg int         endy, endx;
        reg char        *fp, *lp;

        endx = win->_maxx;
        endy = win->_maxy - 1;
        fp = win->_y[0];
        lp = win->_y[endy];
        for (i = 0; i < endx; i++)
                fp[i] = lp[i] = hor;
        endx--;
        for (i = 0; i <= endy; i++)
                win->_y[i][0] = (win->_y[i][endx] = vert);
        if (!win->_scroll && (win->_flags&_SCROLLWIN))
                fp[0] = fp[endx] = lp[0] = lp[endx] = ' ';
        touchwin(win);
}