wip

Shared/Color+Codable.swift

@@ -1,121 +0,0 @@
-//
-//  Color+Codable.swift
-//  FirestoreCodableSamples
-//
-//  Created by Peter Friese on 18.03.21.
-//
-
-import SwiftUI
-
-// Inspired by https://cocoacasts.com/from-hex-to-uicolor-and-back-in-swift
-// Make Color codable. This includes support for transparency.
-// See https://www.digitalocean.com/community/tutorials/css-hex-code-colors-alpha-values
-extension Color: Codable {
-    init(hex: String) {
-        let rgba = hex.toRGBA()
-        
-        self.init(.sRGB,
-                  red: Double(rgba.r),
-                  green: Double(rgba.g),
-                  blue: Double(rgba.b),
-                  opacity: Double(rgba.alpha))
-    }
-    
-    public init(from decoder: Decoder) throws {
-        let container = try decoder.singleValueContainer()
-        let hex = try container.decode(String.self)
-        
-        self.init(hex: hex)
-    }
-    
-    public func encode(to encoder: Encoder) throws {
-        var container = encoder.singleValueContainer()
-        try container.encode(toHex)
-    }
-    
-    var toHex: String? {
-        return toHex()
-    }
-    
-    func toHex(alpha: Bool = false) -> String? {
-        guard let components = cgColor?.components, components.count >= 3 else {
-            return nil
-        }
-        
-        let r = Float(components[0])
-        let g = Float(components[1])
-        let b = Float(components[2])
-        var a = Float(1.0)
-        
-        if components.count >= 4 {
-            a = Float(components[3])
-        }
-        
-        if alpha {
-            return String(format: "%02lX%02lX%02lX%02lX",
-                          lroundf(r * 255),
-                          lroundf(g * 255),
-                          lroundf(b * 255),
-                          lroundf(a * 255))
-        }
-        else {
-            return String(format: "%02lX%02lX%02lX",
-                          lroundf(r * 255),
-                          lroundf(g * 255),
-                          lroundf(b * 255))
-        }
-    }
-}
-
-extension String {
-    func toRGBA() -> (r: CGFloat, g: CGFloat, b: CGFloat, alpha: CGFloat) {
-        var hexSanitized = self.trimmingCharacters(in: .whitespacesAndNewlines)
-        hexSanitized = hexSanitized.replacingOccurrences(of: "#", with: "")
-        
-        var rgb: UInt64 = 0
-        
-        var r: CGFloat = 0.0
-        var g: CGFloat = 0.0
-        var b: CGFloat = 0.0
-        var a: CGFloat = 1.0
-        
-        let length = hexSanitized.count
-        
-        Scanner(string: hexSanitized).scanHexInt64(&rgb)
-        
-        if length == 6 {
-            r = CGFloat((rgb & 0xFF0000) >> 16) / 255.0
-            g = CGFloat((rgb & 0x00FF00) >> 8) / 255.0
-            b = CGFloat(rgb & 0x0000FF) / 255.0
-        }
-        else if length == 8 {
-            r = CGFloat((rgb & 0xFF000000) >> 24) / 255.0
-            g = CGFloat((rgb & 0x00FF0000) >> 16) / 255.0
-            b = CGFloat((rgb & 0x0000FF00) >> 8) / 255.0
-            a = CGFloat(rgb & 0x000000FF) / 255.0
-        }
-        
-        return (r, g, b, a)
-    }
-}
-
-extension Color: RawRepresentable {
-    // TODO: Sort out alpha
-    public init?(rawValue: Int) {
-        let red =   Double((rawValue & 0xFF0000) >> 16) / 0xFF
-        let green = Double((rawValue & 0x00FF00) >> 8) / 0xFF
-        let blue =  Double(rawValue & 0x0000FF) / 0xFF
-        self = Color(red: red, green: green, blue: blue)
-    }
-
-    public var rawValue: Int {
-        let red = Int(coreImageColor.red * 255 + 0.5)
-        let green = Int(coreImageColor.green * 255 + 0.5)
-        let blue = Int(coreImageColor.blue * 255 + 0.5)
-        return (red << 16) | (green << 8) | blue
-    }
-
-    private var coreImageColor: CIColor {
-        return CIColor(color: UIColor(self))
-    }
-}