content: /*
   * Copyright (C) 2012 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.android.gallery3d.exif;
  
  /**
   * The rational data type of EXIF tag. Contains a pair of longs representing the
   * numerator and denominator of a Rational number.
   */
  public class Rational {
  
      private final long mNumerator;
      private final long mDenominator;
  
      /**
       * Create a Rational with a given numerator and denominator.
       *
       * @param nominator
       * @param denominator
       */
      public Rational(long nominator, long denominator) {
          mNumerator = nominator;
          mDenominator = denominator;
      }
  
      /**
       * Create a copy of a Rational.
       */
      public Rational(Rational r) {
          mNumerator = r.mNumerator;
          mDenominator = r.mDenominator;
      }
  
      /**
       * Gets the numerator of the rational.
       */
      public long getNumerator() {
          return mNumerator;
      }
  
      /**
       * Gets the denominator of the rational
       */
      public long getDenominator() {
          return mDenominator;
      }
  
      /**
       * Gets the rational value as type double. Will cause a divide-by-zero error
       * if the denominator is 0.
       */
      public double toDouble() {
          return mNumerator / (double) mDenominator;
      }
  
      @Override
      public boolean equals(Object obj) {
          if (obj == null) {
              return false;
          }
          if (this == obj) {
              return true;
          }
          if (obj instanceof Rational) {
              Rational data = (Rational) obj;
              return mNumerator == data.mNumerator && mDenominator == data.mDenominator;
          }
          return false;
      }
  
      @Override
      public String toString() {
          return mNumerator + "/" + mDenominator;
      }
  }
  