diff options
Diffstat (limited to 'wallpaper_picker_src/com/android/gallery3d/exif/Rational.java')
-rw-r--r-- | wallpaper_picker_src/com/android/gallery3d/exif/Rational.java | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/wallpaper_picker_src/com/android/gallery3d/exif/Rational.java b/wallpaper_picker_src/com/android/gallery3d/exif/Rational.java new file mode 100644 index 000000000..591d63faf --- /dev/null +++ b/wallpaper_picker_src/com/android/gallery3d/exif/Rational.java @@ -0,0 +1,88 @@ +/* + * 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; + } +} |