org.theta4j.webapi.ExposureCompensation.kt Maven / Gradle / Ivy

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Client implementation of RICOH THETA API.

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/*
 * Copyright (C) 2022 theta4j 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 org.theta4j.webapi

import kotlinx.serialization.KSerializer
import kotlinx.serialization.Serializable
import kotlinx.serialization.descriptors.PrimitiveKind
import kotlinx.serialization.descriptors.PrimitiveSerialDescriptor
import kotlinx.serialization.encoding.Decoder
import kotlinx.serialization.encoding.Encoder

@Serializable(ExposureCompensationSerializer::class)
data class ExposureCompensation(val value: Double) {
    override fun toString(): String {
        val sign = if (value > 0.0) "+" else ""
        return "$sign${value}EV"
    }
}

private object ExposureCompensationSerializer : KSerializer {
    override val descriptor = PrimitiveSerialDescriptor(ExposureCompensation::class.simpleName!!, PrimitiveKind.DOUBLE)

    override fun deserialize(decoder: Decoder) = ExposureCompensation(decoder.decodeDouble())

    override fun serialize(encoder: Encoder, value: ExposureCompensation) {
        encoder.encodeDouble(value.value)
    }
}