/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*      Copyright (c) 1988 AT&T */
/*        All Rights Reserved   */

/*
 * University Copyright- Copyright (c) 1982, 1986, 1988
 * The Regents of the University of California
 * All Rights Reserved
 *
 * University Acknowledgment- Portions of this document are derived from
 * software developed by the University of California, Berkeley, and its
 * contributors.
 */

/*LINTLIBRARY*/

#include        <sys/types.h>
#include        <stdlib.h>
#include        "curses_inc.h"

/*
 *      Draw a box around a window.
 *
 *      ls : the character and attributes used for the left side.
 *      rs : right side.
 *      ts : top side.
 *      bs : bottom side.
 */

#define _LEFTSIDE       variables[0]
#define _RIGHTSIDE      variables[1]
#define _TOPSIDE        variables[2]
#define _BOTTOMSIDE     variables[3]
#define _TOPLEFT        variables[4]
#define _TOPRIGHT       variables[5]
#define _BOTTOMLEFT     variables[6]
#define _BOTTOMRIGHT    variables[7]

static  char    acs_values[] = {
                    'x', /* ACS_VLINE */
                    'x', /* ACS_VLINE */
                    'q', /* ACS_HLINE */
                    'q', /* ACS_HLINE */
                    'l', /* ACS_ULCORNER */
                    'k', /* ACS_URCORNER */
                    'm', /* ACS_LLCORNER */
                    'j' /* ACS_LRCORNER */
                };

int
wborder(WINDOW *win, chtype ls, chtype rs, chtype ts,
        chtype bs, chtype tl, chtype tr, chtype bl, chtype br)
{
        int     i, endy = win->_maxy - 1, endx = win->_maxx - 2;
        chtype  **_y = win->_y; /* register version */
        chtype  *line_ptr, variables[8];
        int     x, sx, xend;
        chtype  wc;

        _LEFTSIDE = ls;
        _RIGHTSIDE = rs;
        _TOPSIDE = ts;
        _BOTTOMSIDE = bs;
        _TOPLEFT = tl;
        _TOPRIGHT = tr;
        _BOTTOMLEFT = bl;
        _BOTTOMRIGHT = br;

        for (i = 0; i < 8; i++) {
                if (_CHAR(variables[i]) == 0 ||
                    variables[i] & 0xFF00)
                        variables[i] = acs_map[acs_values[i]];
                if (ISCBIT(variables[i]))
                        variables[i] = _CHAR((RBYTE(variables[i])<<8) | \
                        (LBYTE(variables[i])|MBIT)) | CBIT;
                variables[i] &= ~CBIT;
                variables[i] = _WCHAR(win, variables[i]) | _ATTR(variables[i]);
        }

        /* do top and bottom edges and corners */
        xend = win->_maxx-1;
        x = 0;
        for (; x <= xend; ++x)
                if (!ISCBIT(_y[0][x]))
                        break;
        for (; xend >= x; --xend)
                if (!ISCBIT(_y[0][endx])) {
                        int     m;
                        wc = RBYTE(_y[0][xend]);
                        if ((m = xend + _curs_scrwidth[TYPE(wc)]) > win->_maxx)
                                xend -= 1;
                        else
                                xend = m - 1;
                        endx = xend - 1;
                        break;
                }
        sx = x == 0 ? 1 : x;
        memSset((line_ptr = &_y[0][sx]), _TOPSIDE, endx);
        if (x == 0)
                *(--line_ptr) = _TOPLEFT;
        if (endx == win->_maxx-2)
                line_ptr[++endx] = _TOPRIGHT;

        xend = win->_maxx-1;
        x = 0;
        for (; x <= xend; ++x)
                if (!ISCBIT(_y[endy][x]))
                        break;
        for (; xend >= x; --xend)
                if (!ISCBIT(_y[endy][xend])) {
                        int     m;
                        wc = RBYTE(_y[endy][xend]);
                        if ((m = xend + _curs_scrwidth[TYPE(wc)]) > win->_maxx)
                                xend -= 1;
                        else
                                xend = m - 1;
                        endx = xend - 1;
                        break;
                }
        sx = x == 0 ? 1 : x;

        memSset((line_ptr = &_y[endy][sx]), _BOTTOMSIDE, endx);
        if (x == 0)
                *--line_ptr = _BOTTOMLEFT;
        if (endx == win->_maxx-2)
                line_ptr[++endx] = _BOTTOMRIGHT;

#ifdef  _VR3_COMPAT_CODE
        if (_y16update) {
                (*_y16update)(win, 1, ++endx, 0, 0);
                (*_y16update)(win, 1, endx--, endy, 0);
        }
#endif  /* _VR3_COMPAT_CODE */

        /* left and right edges */
        while (--endy > 0) {
                wc = _y[endy][0];
                if (!ISCBIT(wc) && _curs_scrwidth[TYPE(RBYTE(wc))] == 1)
                        _y[endy][0] = _LEFTSIDE;
                wc = _y[endy][endx];
                if (!ISCBIT(wc) && _curs_scrwidth[TYPE(RBYTE(wc))] == 1)
                        _y[endy][endx] = _RIGHTSIDE;

#ifdef  _VR3_COMPAT_CODE
                if (_y16update) {
                        /* LINTED */
                        win->_y16[endy][0] =  _TO_OCHTYPE(_LEFTSIDE);
                        /* LINTED */
                        win->_y16[endy][endx] = _TO_OCHTYPE(_RIGHTSIDE);
                }
#endif  /* _VR3_COMPAT_CODE */
        }
        return (wtouchln((win), 0, (win)->_maxy, TRUE));
}