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/* MediaUtil LLJTran - $RCSfile: Rational.java,v $
 * Copyright (C) 1999-2005 Dmitriy Rogatkin, Suresh Mahalingam.  All rights reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 *  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 *  ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
 *  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 *  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 *  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *	$Id: Rational.java,v 1.1.1.1 2005/07/27 03:03:16 drogatkin Exp $
 *
 * Some ideas and algorithms were borrowed from:
 * Thomas G. Lane, and James R. Weeks
 */
package mediautil.gen;

import java.io.Serializable;

public class Rational implements Serializable {
    int num, den;
	public Rational(int num, int den) {
		this.num = num;
		this.den = den;
	}

    public Rational(float value) {
        den = 1000;
        num = (int)(value*(new Integer(den).floatValue()));
    }

	public String toString() {
		return ""+num+"/"+den;
	}

    public float floatValue() {
        return (float) num / den;
    }

    public int intValue() {
        return (int) num / den;
    }

	public String toExposureString() {
		if (num > 0)
			return "1/"+Math.round(1.0*den/num);
		return "";
	}

	public int getDen() {
		return den;
	}

	public int getNum() {
		return num;
	}

    public void normalize() {
    }

	public static String toExposureString(Object o) {
		if (o instanceof Rational)
			return ((Rational)o).toExposureString();
		return o.toString();
	}
}