menu/common/menuformat.c

	menuformat.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
2N/A/*
2N/A * CDDL HEADER START
2N/A *
2N/A * The contents of this file are subject to the terms of the
2N/A * Common Development and Distribution License, Version 1.0 only
2N/A * (the "License").  You may not use this file except in compliance
2N/A * with the License.
2N/A *
2N/A * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
2N/A * or http://www.opensolaris.org/os/licensing.
2N/A * See the License for the specific language governing permissions
2N/A * and limitations under the License.
2N/A *
2N/A * When distributing Covered Code, include this CDDL HEADER in each
2N/A * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
2N/A * If applicable, add the following below this CDDL HEADER, with the
2N/A * fields enclosed by brackets "[]" replaced with your own identifying
2N/A * information: Portions Copyright [yyyy] [name of copyright owner]
2N/A *
2N/A * CDDL HEADER END
2N/A */
2N/A/*  Copyright (c) 1988 AT&T */
2N/A/*    All Rights Reserved   */
2N/A
2N/A
2N/A/*
2N/A * Copyright (c) 1997, by Sun Mircrosystems, Inc.
2N/A * All rights reserved.
2N/A */
2N/A
2N/A#pragma ident   "%Z%%M% %I% %E% SMI"    /* SVr4.0 1.8   */

/*LINTLIBRARY*/

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

int
set_menu_format(MENU *m, int rows, int cols)
{
    if (rows < 0 || cols < 0) {
        return (E_BAD_ARGUMENT);
    }
    if (m) {
        if (Posted(m)) {
            return (E_POSTED);
        }
        if (rows == 0) {
            rows = FRows(m);
        }
        if (cols == 0) {
            cols = FCols(m);
        }

        /* The pattern buffer is allocated after items have been */
        /* connected */
        if (Pattern(m)) {
            IthPattern(m, 0) = '\0';
            Pindex(m) = 0;
        }

        FRows(m) = rows;
        FCols(m) = cols;
        Cols(m) = min(cols, Nitems(m));
        Rows(m) = (Nitems(m)-1) / cols + 1;
        Height(m) = min(rows, Rows(m));
        Top(m) = 0;
        Current(m) = IthItem(m, 0);
        SetLink(m);
        _scale(m);
    } else {
        if (rows > 0) {
            FRows(Dfl_Menu) = rows;
        }
        if (cols > 0) {
            FCols(Dfl_Menu) = cols;
        }
    }
    return (E_OK);
}

void
menu_format(MENU *m, int *rows, int *cols)
{
    if (m) {
        *rows = FRows(m);
        *cols = FCols(m);
    } else {
        *rows = FRows(Dfl_Menu);
        *cols = FCols(Dfl_Menu);
    }
}