mirror of
https://github.com/meshtastic/Meshtastic-Android.git
synced 2026-04-20 22:23:37 +00:00
91 lines
3.3 KiB
Kotlin
91 lines
3.3 KiB
Kotlin
/*
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* Copyright (c) 2025 Meshtastic LLC
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package com.geeksville.mesh.util
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import android.icu.util.LocaleData
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import android.icu.util.ULocale
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import com.geeksville.mesh.ConfigProtos.Config.DisplayConfig
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import java.util.Locale
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enum class DistanceUnit(
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val symbol: String,
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val multiplier: Float,
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val system: Int
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) {
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METER("m", multiplier = 1F, DisplayConfig.DisplayUnits.METRIC_VALUE),
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KILOMETER("km", multiplier = 0.001F, DisplayConfig.DisplayUnits.METRIC_VALUE),
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FOOT("ft", multiplier = 3.28084F, DisplayConfig.DisplayUnits.IMPERIAL_VALUE),
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MILE("mi", multiplier = 0.000621371F, DisplayConfig.DisplayUnits.IMPERIAL_VALUE),
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;
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companion object {
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fun getFromLocale(locale: Locale = Locale.getDefault()): DisplayConfig.DisplayUnits {
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return if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.P) {
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when (LocaleData.getMeasurementSystem(ULocale.forLocale(locale))) {
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LocaleData.MeasurementSystem.SI -> DisplayConfig.DisplayUnits.METRIC
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else -> DisplayConfig.DisplayUnits.IMPERIAL
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}
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} else {
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when (locale.country.uppercase(locale)) {
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"US", "LR", "MM", "GB" -> DisplayConfig.DisplayUnits.IMPERIAL
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else -> DisplayConfig.DisplayUnits.METRIC
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}
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}
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}
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}
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}
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fun Int.metersIn(unit: DistanceUnit): Float {
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return this * unit.multiplier
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}
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fun Int.metersIn(system: DisplayConfig.DisplayUnits): Float {
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val unit = when (system.number) {
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DisplayConfig.DisplayUnits.IMPERIAL_VALUE -> DistanceUnit.FOOT
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else -> DistanceUnit.METER
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}
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return this.metersIn(unit)
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}
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fun Float.toString(unit: DistanceUnit): String {
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return if (unit in setOf(DistanceUnit.METER, DistanceUnit.FOOT)) {
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"%.0f %s"
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} else {
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"%.1f %s"
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}.format(this, unit.symbol)
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}
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fun Float.toString(system: DisplayConfig.DisplayUnits): String {
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val unit = when (system.number) {
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DisplayConfig.DisplayUnits.IMPERIAL_VALUE -> DistanceUnit.FOOT
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else -> DistanceUnit.METER
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}
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return this.toString(unit)
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}
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private const val KILOMETER_THRESHOLD = 1000
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private const val MILE_THRESHOLD = 1609
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fun Int.toDistanceString(system: DisplayConfig.DisplayUnits): String {
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val unit = if (system.number == DisplayConfig.DisplayUnits.METRIC_VALUE) {
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if (this < KILOMETER_THRESHOLD) DistanceUnit.METER else DistanceUnit.KILOMETER
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} else {
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if (this < MILE_THRESHOLD) DistanceUnit.FOOT else DistanceUnit.MILE
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}
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val valueInUnit = this * unit.multiplier
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return valueInUnit.toString(unit)
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}
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