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FeetAndInches

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cdricms
2025-09-01 08:52:38 +02:00
parent 3798a3db32
commit 3d19cd6252
1 changed files with 8 additions and 12 deletions
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20
Sources/Units/Units.swift
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@@ -563,28 +563,24 @@ extension UnitValue where ValueType: ConvertibleToDouble { // Apply constraints
extension UnitValue where ValueType: ConvertibleToDouble { extension UnitValue where ValueType: ConvertibleToDouble {
/// Converts a length UnitValue (e.g., in cm) to feet and inches. /// Converts a length UnitValue (e.g., in cm) to feet and inches.
/// Returns nil if the category is not length. /// Returns nil if the category is not length.
public func toFeetAndInches(maximumFractionDigits: Int = 2) -> String? { public typealias FeetAndInches = (
feet: UnitValue<Int>, inches: UnitValue<Double>
)
public var toFeetAndInches: FeetAndInches? {
guard unit.category == .length else { return nil } guard unit.category == .length else { return nil }
guard let totalInches = converted(to: .inch)?.value else { return nil } guard let totalInches = converted(to: .inch)?.value else { return nil }
let feet = Int(totalInches / 12) let feet = Int(totalInches / 12)
let inches = totalInches.truncatingRemainder(dividingBy: 12) let inches = totalInches.truncatingRemainder(dividingBy: 12)
let formatter = NumberFormatter() return (feet: feet.ft, inches: inches.in)
formatter.maximumFractionDigits = maximumFractionDigits
formatter.minimumFractionDigits = 0
formatter.numberStyle = .decimal
guard
let formattedInches = formatter.string(
from: NSNumber(value: inches))
else { return nil }
return "\(feet) ft \(formattedInches) in"
} }
/// Creates a UnitValue in a target unit (e.g., cm) from feet and inches. /// Creates a UnitValue in a target unit (e.g., cm) from feet and inches.
public static func from(feet: Int, inches: Double, to targetUnit: Unit) public static func from(_ feetAndInches: FeetAndInches, to targetUnit: Unit)
-> UnitValue<Double>? -> UnitValue<Double>?
{ {
guard targetUnit.category == .length else { return nil } guard targetUnit.category == .length else { return nil }
let totalInches = Double(feet) * 12 + inches let (feet, inches) = feetAndInches
let totalInches = Double(feet.value) * 12 + inches.value
let inchesValue = totalInches.in let inchesValue = totalInches.in
return inchesValue.converted(to: targetUnit) return inchesValue.converted(to: targetUnit)
} }