libcurses/screen/endwin.c

/*
 * 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.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

/*LINTLIBRARY*/

/* Clean things up before exiting. */

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

#ifdef  _VR2_COMPAT_CODE
char    _endwin = 0;
#endif  /* _VR2_COMPAT_CODE */

int
isendwin(void)
{
    /*
     * The test below must stay at TRUE because the value of 2
     * has special meaning to wrefresh but does not mean that
     * endwin has been called.
     */
    if (SP && (SP->fl_endwin == TRUE))
        return (TRUE);
    else
        return (FALSE);
}

int
endwin(void)
{
    /* make sure we're in program mode */
    if (SP->fl_endwin) {
        /* If endwin is equal to 2 it means we just did a newscreen. */
        if (SP->fl_endwin == TRUE) {
            (void) reset_prog_mode();
            if (SP->kp_state)
                (void) tputs(keypad_xmit, 1, _outch);
            if (SP->fl_meta)
                (void) tputs(meta_on, 1, _outch);
            if (cur_term->_cursorstate != 1)
                _PUTS(cur_term->cursor_seq
                    [cur_term->_cursorstate], 0);
        }
        _PUTS(enter_ca_mode, 1);
        (void) tputs(ena_acs, 1, _outch);
        if (exit_attribute_mode)
            _PUTS(tparm_p0(exit_attribute_mode), 1);
        else
            /*
             * If there is no exit_attribute mode, then vidupdate
             * could only possibly turn off one of the below three
             * so that's all we ask it turn off.
             */
            vidupdate(A_NORMAL,
                (A_ALTCHARSET | A_STANDOUT | A_UNDERLINE), _outch);

        SP->fl_endwin = FALSE;

#ifdef  _VR2_COMPAT_CODE
        _endwin = (char) FALSE;
#endif  /* _VR2_COMPAT_CODE */
    }

    /* See comment above why this test is explicitly against TRUE. */
    if (SP->fl_endwin == TRUE)
        return (ERR);

    /* Flush out any output not output due to typeahead. */
    if (_INPUTPENDING)
        (void) force_doupdate();

    /* Close things down. */
    (void) ttimeout(-1);
    if (SP->fl_meta)
        (void) tputs(meta_off, 1, _outch);
    (void) mvcur(curscr->_cury, curscr->_curx, curscr->_maxy - 1, 0);

    if (SP->kp_state)
        (void) tputs(keypad_local, 1, _outch);
    if (cur_term->_cursorstate != 1)
        (void) tputs(cursor_normal, 0, _outch);

    /* don't bother turning off colors: it will be done later anyway */
    curscr->_attrs &= ~A_COLOR;     /* SS: colors */

    if ((curscr->_attrs != A_NORMAL) &&
        (magic_cookie_glitch < 0) && (!ceol_standout_glitch))
        _VIDS(A_NORMAL, curscr->_attrs);

    if (SP->phys_irm)
        _OFFINSERT();

    SP->fl_endwin = TRUE;

#ifdef  _VR2_COMPAT_CODE
    _endwin = TRUE;
#endif  /* _VR2_COMPAT_CODE */

    curscr->_clear = TRUE;
    (void) reset_shell_mode();
    (void) tputs(exit_ca_mode, 0, _outch);

    /* restore colors and default color pair. SS: colors    */
    if (orig_colors)
        (void) tputs(orig_colors, 1, _outch);
    if (orig_pair)
        (void) tputs(tparm_p0(orig_pair), 1, _outch);

    /* SS-mouse: free the mouse. */

    if (get_mouse)
        (void) tputs(tparm_p1(get_mouse, 0), 1, _outch);

    (void) fflush(SP->term_file);

    return (OK);
}

int
force_doupdate(void)
{
    char    chars_onQ = cur_term->_chars_on_queue;
    int ret;

    /*
     * This will cause _chkinput to return FALSE which will force wrefresh
     * to think there is no input waiting and it will finish its refresh.
     */

    cur_term->_chars_on_queue = INP_QSIZE;
    ret = doupdate();
    cur_term->_chars_on_queue = chars_onQ;
    return (ret);
}