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Nick Lockwood
94 lines
3.3 KiB
Swift
Executable File
94 lines
3.3 KiB
Swift
Executable File
//
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// ViewController.swift
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// Layout
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//
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// Created by Nick Lockwood on 21/09/2016.
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// Copyright © 2016 Nick Lockwood. All rights reserved.
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//
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// Distributed under the permissive MIT license
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// Get the latest version from here:
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//
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// https://github.com/nicklockwood/Expression
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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//
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import UIKit
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final class ViewController: UIViewController, UITextFieldDelegate {
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@IBOutlet private var leftField: UITextField!
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@IBOutlet private var topField: UITextField!
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@IBOutlet private var widthField: UITextField!
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@IBOutlet private var heightField: UITextField!
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@IBOutlet private var errorLabel: UILabel!
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@IBOutlet private var layoutView: UIView!
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var selectedView: UIView? {
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didSet {
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oldValue?.layer.borderWidth = 0
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selectedView?.layer.borderWidth = 2
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selectedView?.layer.borderColor = UIColor.black.cgColor
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leftField.isEnabled = true
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leftField.text = selectedView?.left
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topField.isEnabled = true
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topField.text = selectedView?.top
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widthField.isEnabled = true
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widthField.text = selectedView?.width
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heightField.isEnabled = true
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heightField.text = selectedView?.height
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}
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}
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@IBAction func didTap(sender: UITapGestureRecognizer) {
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let point = sender.location(in: layoutView)
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if let view = layoutView.hitTest(point, with: nil), view != layoutView {
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selectedView = view
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}
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}
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override func viewDidLayoutSubviews() {
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super.viewDidLayoutSubviews()
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updateLayout()
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}
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func updateLayout() {
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do {
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for view in layoutView.subviews {
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try view.updateLayout()
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}
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errorLabel.text = nil
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} catch {
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errorLabel.text = "\(error)"
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}
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}
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func textFieldShouldReturn(_ textField: UITextField) -> Bool {
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textField.resignFirstResponder()
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return true
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}
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func textFieldDidEndEditing(_: UITextField) {
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selectedView?.left = leftField.text
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selectedView?.top = topField.text
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selectedView?.width = widthField.text
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selectedView?.height = heightField.text
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updateLayout()
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}
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}
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