libc/xcurses/getwin.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 (c) 1995-1998 by Sun Microsystems, Inc.
 * All rights reserved.
 */

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

/* LINTLIBRARY */

/*
 * getwin.c
 *
 * XCurses Library
 *
 * Copyright 1990, 1995 by Mortice Kern Systems Inc.  All rights reserved.
 *
 */

#if M_RCSID
#ifndef lint
static char rcsID[] = "$Header: /rd/src/libc/xcurses/rcs/getwin.c 1.2 "
"1995/06/12 17:48:38 ant Exp $";
#endif
#endif

#include <private.h>
#include <limits.h>

#undef mvwaddstr
#undef wstandend

static int
get_cc(WINDOW *w, char *mbs, FILE *fp)
{
    short   co;
    attr_t  at;
    int n, y, x;

    if (fscanf(fp, "%d,%d,%hx,%hd,", &y, &x, &at, &co) < 4)
        return (0);

    if (fscanf(fp, "%[^\n]%n ", mbs, &n) < 1)
        return (0);

    if (wattr_set(w, at, co, (void *) 0) == ERR)
        return (0);

    if (mvwaddstr(w, y, x, mbs) == ERR)
        return (0);

    (void) wstandend(w);

    return (n);
}

WINDOW *
getwin(FILE *fp)
{
    char    *mbs;
    WINDOW  *w;
    unsigned short  flags;
    int by, bx, my, mx;

    /* Get window dimensions and location to create a new window. */
    if (fscanf(fp, "MAX=%d,%d BEG=%d,%d ", &my, &mx, &by, &bx) < 4)
        goto error1;

    if ((mbs = (char *) malloc((size_t) (LINE_MAX+1))) == NULL)
        goto error1;

    if ((w = newwin(my, mx, by, bx)) == NULL)
        goto error2;

    /* Read other window attributes. */
    by = fscanf(fp,
        "SCROLL=%hd,%hd VMIN=%hd VTIME=%hd FLAGS=%hx FG=%hx,%hd ",
        &w->_top, &w->_bottom, &w->_vmin, &w->_vtime, &flags,
        &w->_fg._at, &w->_fg._co);
    if (by < 7)
        goto error3;

    w->_flags &= ~W_CONFIG_MASK;
    w->_flags |= flags;

    by = fscanf(fp, "BG=%hx,%hd,%[^\n] ", &w->_bg._at, &w->_bg._co, mbs);
    if (by < 3)
        goto error3;

    while (get_cc(w, mbs, fp))
        ;

    if (fscanf(fp, "CUR=%hd,%hd", &w->_cury, &w->_curx) < 2)
        goto error3;

    free(mbs);

    return (w);
error3:
    (void) delwin(w);
error2:
    free(mbs);
error1:
    rewind(fp);

    return (NULL);
}

static int
put_cc(WINDOW *w, int y, int x,
    char *mbs, int len, FILE *fp)
{
    int i;
    short   co;
    attr_t  at;

    at = w->_line[y][x]._at;
    co = w->_line[y][x]._co;

    /* Write first character as a multibyte string. */
    (void) __m_cc_mbs(&w->_line[y][x], mbs, len);

    /* Write additional characters with same colour and attributes. */
    for (i = x; ; ) {
        i = __m_cc_next(w, y, i);
        if (w->_maxx <= i)
            break;
        if (w->_line[y][i]._at != at || w->_line[y][i]._co != co)
            break;
        (void) __m_cc_mbs(&w->_line[y][i], mbs, 0);
    }

    /* Terminate string. */
    (void) __m_cc_mbs((const cchar_t *) 0, (char *) 0, 0);

    (void) fprintf(fp, "%d,%d,%#x,%d,%s\n", y, x, at, co, mbs);

    /* Return index of next unprocessed column. */
    return (i);
}

int
putwin(WINDOW *w, FILE *fp)
{
    char    *mbs;
    size_t  mbs_len;
    int y, x;

    mbs_len = columns * _M_CCHAR_MAX * MB_LEN_MAX * sizeof (*mbs) + 1;
    if ((mbs = (char *) malloc((size_t) mbs_len)) == (char *) 0)
        return (ERR);

    (void) fprintf(fp,
        "MAX=%d,%d\nBEG=%d,%d\nSCROLL=%d,%d\n",
        w->_maxy, w->_maxx, w->_begy, w->_begx, w->_top, w->_bottom);
    (void) fprintf(fp,
        "VMIN=%d\nVTIME=%d\nFLAGS=%#x\nFG=%#x,%d\n",
        w->_vmin, w->_vtime, w->_flags & W_CONFIG_MASK,
        w->_fg._at, w->_fg._co);

    (void) __m_cc_mbs(&w->_bg, mbs, (int)mbs_len);
    (void) __m_cc_mbs((const cchar_t *) 0, (char *) 0, 0);
    (void) fprintf(fp, "BG=%#x,%d,%s\n", w->_bg._at, w->_bg._co, mbs);

    for (y = 0; y < w->_maxy; ++y) {
        for (x = 0; x < w->_maxx; )
            x = put_cc(w, y, x, mbs, (int)mbs_len, fp);
    }

    (void) fprintf(fp, "CUR=%d,%d\n", w->_curx, w->_cury);

    free(mbs);

    return (OK);
}