Rational.java revision 1792070857f96943ae110869d66f092001ad526e 
1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.gallery3d.exif;
18
19/**
20 * The rational data type of EXIF tag.
21 */
22public class Rational {
23
24    private final long mNominator;
25    private final long mDenominator;
26
27    public Rational(long nominator, long denominator) {
28        mNominator = nominator;
29        mDenominator = denominator;
30    }
31
32    /*
33     * Gets the nominator of the rational.
34     */
35    public long getNominator() {
36        return mNominator;
37    }
38
39    /*
40     * Gets the denominator of the rational
41     */
42    public long getDenominator() {
43        return mDenominator;
44    }
45
46    @Override
47    public boolean equals(Object obj) {
48        if (obj instanceof Rational) {
49            Rational data = (Rational) obj;
50            return mNominator == data.mNominator && mDenominator == data.mDenominator;
51        }
52        return false;
53    }
54
55    @Override
56    public String toString() {
57        return mNominator + "/" + mDenominator;
58    }
59
60    /*
61     * Gets the rational value as type double.
62     */
63    public double toDouble() {
64        return mNominator / (double) mDenominator;
65    }
66}