/packages/WallpaperCropper/src/com/android/gallery3d/exif/Rational.java
https://github.com/aizuzi/platform_frameworks_base · Java · 88 lines · 40 code · 10 blank · 38 comment · 8 complexity · 30b64a7b704cb568a6f326bdbffdd6dc MD5 · raw file
- /*
- * 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;
- }
- }