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


/*
 *      Copyright (c) 1997, by Sun Microsystems, Inc.
 *      All rights reserved.
 */

/*LINTLIBRARY*/

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

/*
 * Add ncols worth of data to win, using string as input.
 * Return the number of chtypes copied.
 * Note: chtype contains 32/16 bit process code.
 */
int
waddwchnstr(WINDOW *win, chtype *string, int ncols)
{
        int             my_x = win->_curx;
        int             my_y = win->_cury;
        short           my_maxx;
        int             counter;
        chtype          *ptr = &(win->_y[my_y][my_x]);
        chtype          *sptr = ptr;
        char            mbbuf[CSMAX+1];
        int             mp, s, scrw;
        chtype          rawc;
        chtype          attr;
        short           my_x1 = win->_curx;


        while (ISCBIT(*ptr)) {
                ptr--;
                my_x1--;
        }
        while (ptr < sptr)
                *ptr++ = win->_bkgd;

        if (ncols == -1)
                ncols = MAXINT;

        counter = win->_maxx - my_x;
        while ((ncols > 0) && (*string) && (counter > 0)) {
                attr = *string & A_WATTRIBUTES;
                rawc = *string & A_WCHARTEXT;

                /* conver wchar_t to mbuti byte string */
                for (mp = 0; mp < sizeof (mbbuf); mp++)
                        mbbuf[mp] = '\0';
                if (_curs_wctomb(mbbuf, rawc) <= 0)
                        goto out;

                /* if there are no cols on screen, end */
                if ((scrw = wcscrw(rawc)) > counter)
                        goto out;

                if (rawc & WCHAR_CSMASK) {
                        /* store multi-byte string into chtype */
                        for (s = 0, mp = 0; s < scrw; s++, mp += 2) {
                                *ptr = _CHAR(RBYTE(mbbuf[mp]) |
                                    RBYTE(mbbuf[mp + 1]) << 8) | CBIT;
                                SETMBIT(*ptr);
                                if (mp > 0)
                                        SETCBIT(*ptr);
                                else
                                        CLRCBIT(*ptr);
                                *ptr |= attr;
                                ptr++;
                        }
                } else {
                /* store single-byte string into chtype */
                        *ptr = mbbuf[0];
                        *ptr |= attr;
                        ptr++;
                }

                ncols--;
                string++;
                counter -= scrw;
        }
out :

        while (ISCBIT(*ptr))
                *ptr++ = win->_bkgd;

        /* LINTED */
        my_maxx = (short) (ptr - sptr + my_x);

        if (my_x1 < win->_firstch[my_y])
                win->_firstch[my_y] = my_x1;

        if (my_maxx > win->_lastch[my_y])
                win->_lastch[my_y] = my_maxx;

        win->_flags |= _WINCHANGED;

        /* sync with ancestor structures */
        if (win->_sync)
                wsyncup(win);

        return (win->_immed ? wrefresh(win) : OK);
}