57 lines
1.6 KiB
Kotlin
57 lines
1.6 KiB
Kotlin
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package it.sephiroth.android.library.exif2
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/**
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* The rational data type of EXIF tag. Contains a pair of longs representing the
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* numerator and denominator of a Rational number.
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*/
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class Rational(
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//the numerator of the rational.
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val numerator : Long = 0,
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//the denominator of the rational
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val denominator : Long = 1
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) {
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// copy from a Rational.
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@Suppress("unused")
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constructor(r : Rational) : this(
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numerator = r.numerator,
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denominator = r.denominator
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)
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override fun equals(other : Any?) : Boolean {
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return when {
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other === null -> false
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other === this -> true
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other is Rational -> numerator == other.numerator && denominator == other.denominator
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else -> false
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}
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}
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override fun hashCode() : Int =
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31 * numerator.hashCode() + denominator.hashCode()
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override fun toString() : String = "$numerator/$denominator"
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// Gets the rational value as type double.
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// Will cause a divide-by-zero error if the denominator is 0.
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fun toDouble() : Double = numerator.toDouble() / denominator.toDouble()
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}
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