dagronf

/// Show or hide the extension of a file url
/// - Parameter ofItemAtFileURL: The file URL to change the extension visibility
/// - Parameter isHidden: The new state of the finder visibility.  true == visible, false == hidden
func setExtensionVisibility(ofItemAtFileURL: URL, isHidden: Bool) throws {
   try self.setAttributes([FileAttributeKey.extensionHidden : isHidden],
                          ofItemAtPath: ofItemAtFileURL.path)
}

dagronf

//
//  NSGraphicsContext+GStateManagement.swift
//
//  Created by Darren Ford on 10/11/19.
//  Copyright © 2019 Darren Ford. All rights reserved.
//
//  Easier state management when working with NSGraphicsContext and CGContext
//

#if os(macOS)

dagronf

public extension Folder {
     /// Create a new uniquely-named file within this folder.
     /// - Parameter prefix: (optional) prefix to add the temporary file name
     /// - Parameter fileExtension: (optional) file extension (without the `.`) to use for the created file
     /// - Parameter contents: (optional) the data to write to the file
     /// - throws: `WriteError` if a new file couldn't be created.
     func createTemporaryFile(prefix: String? = nil, fileExtension: String? = nil, contents: Data? = nil) throws -> File {
         var tempFilename = ""
         if let prefix = prefix {
             tempFilename += prefix + "_"

dagronf

//
//  DSFKeyedArchiverCodable.swift
//  QR Generator
//
//  Created by Darren Ford on 18/11/19.
//  Copyright © 2019 Darren Ford. All rights reserved.
//

import Foundation

dagronf

extension FileManager {

   /// Returns a unique URL for the specified filename and directory. Not thread safe
   /// - Parameter filename: the `lastPathComponent` of a URL (for example, `IMG-2002.jpg`)
   /// - Parameter directory: the directory in which to check
   /// - Returns: a unique URL
   static func UniqueFileURL(for filename: String, in directory: URL) -> URL {
      // Filename is lastPathComponent
      let fm = FileManager.default

dagronf

/// Perform an immediate `transform` of a given `subject`. The `transform`
/// function may just mutate the given `subject`, or replace it entirely.
///
/// ```
/// let oneAndTwo = with([1]) {
///     $0.append(2)
/// }
/// ```
///
/// - Parameters:

dagronf

public extension Sequence {
   /// Return unique elements in an array, given a predicate
   /// - Parameter includeElement: block determining whether the elements are equivalent
   func unique(_ predicate: (_ lhs: Element, _ rhs: Element) -> Bool) -> [Element] {
      var results = [Element]()
      forEach { (element) in
         if results.filter( { predicate(element, $0) }).count == 0 {
            results.append(element)
         }
      }

dagronf

/// From https://www.rightpoint.com/rplabs/xctassert-optional-unwrapping

// Usage :-
//
// class TestCaseUnwrap: XCTestCase {
//    func testUnwrap() throws {
//       let string: String? = nil
//       let newString = try AssertNotNilAndUnwrap(string)
//       XCTAssert(newString.lengthOfBytes(using: .utf8) > 0)
//    }

dagronf

import UIKit

extension UIColor {
   private struct ColorComponents {
      var r: CGFloat = 0.0
      var g: CGFloat = 0.0
      var b: CGFloat = 0.0
      var a: CGFloat = 0.0
   }

dagronf

   let menuController = UIMenuController.shared
   let item1 = UIMenuItem(title: "Item 1", action: #selector(performItem1))
   let item2 = UIMenuItem(title: "Item 2", action: #selector(performItem2))
   menuController.menuItems = [item1, item2]
   menuController.setMenuVisible(true, animated: true)