SpectralDragon

//
//  ContentView.swift
//  PreviewSwiftUI
//
//  Created by v.prusakov on 4/8/20.
//  Copyright © 2020 v.prusakov. All rights reserved.
//

import SwiftUI

SpectralDragon

extension UIColor {
    // default implementaion of hex parsing
    public convenience init?(hex: String) {
        let r, g, b, a: CGFloat

        if hex.hasPrefix("#") {
            let start = hex.index(hex.startIndex, offsetBy: 1)
            let hexColor = String(hex[start...])

            if hexColor.count == 8 {

SpectralDragon

//
//  iOSToggleStyle.swift
//
//  Created by Vladislav Prusakov on 03.02.2020.
//  Copyright © 2020 Vladislav Prusakov. All rights reserved.
//

import SwiftUI

struct iOSToggleStyle: ToggleStyle {

SpectralDragon

public extension UIImage {
    /// Creates a dynamic image that supports displaying a different image asset when dark mode is active.
    static func dynamic(
        light makeLight: @autoclosure () -> UIImage,
        dark makeDark: @autoclosure () -> UIImage
    ) -> UIImage {
        if #available(iOS 13, *) {
            return UIDynamicProviderImage(light: makeLight(), dark: makeDark())
        } else {

SpectralDragon

class RangeTree<T> { 
    
    private var value: [T]
    private(set) var range: Range<Int>
    private var leftLeaf: RangeTree<T>?
    private var rightLeaf: RangeTree<T>?
    
    convenience init(array: [T]) {
        self.init(array: array, range: 0 ..< array.count)
    }

SpectralDragon

final class CompoundProgress: Progress {
    
    private struct Child {
        let progress: Progress
        let cancellationObservation: NSKeyValueObservation
        let completedUnitObservation: NSKeyValueObservation
        
        func invalidate() {
            self.cancellationObservation.invalidate()
            self.completedUnitObservation.invalidate()