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ChoiceSelectorView.swift
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ChoiceSelectorView.swift
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// Copyright (c) 2017 Luc Dion
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
import UIKit
import PinLayout
class ChoiceSelectorView: UIView {
private let textLabel = UILabel()
private let segmentedControl = UISegmentedControl()
init(text: String, choices: [String]) {
super.init(frame: .zero)
textLabel.text = text
textLabel.font = .systemFont(ofSize: 14)
textLabel.numberOfLines = 0
textLabel.lineBreakMode = .byWordWrapping
addSubview(textLabel)
choices.forEach({ segmentedControl.insertSegment(withTitle: $0, at: segmentedControl.numberOfSegments, animated: false) })
segmentedControl.tintColor = .pinLayoutColor
segmentedControl.sizeToFit()
addSubview(segmentedControl)
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func layoutSubviews() {
super.layoutSubviews()
_ = layout()
}
override func sizeThatFits(_ size: CGSize) -> CGSize {
// 1) Set the width to the specified width
self.pin.width(size.width)
// 2) Layout the contentView's controls
return layout()
}
private func layout() -> CGSize {
let margin: CGFloat = 12
if frame.width > 500 {
// The UISegmentedControl is at the top-right corner and the label takes the remaining horizontal space.
segmentedControl.pin.top().right().margin(margin)
textLabel.pin.top().left().before(of: segmentedControl).margin(margin).sizeToFit(.width)
} else {
// The UISegmentedControl is placed below the label.
textLabel.pin.top().horizontally().margin(margin).sizeToFit(.width)
segmentedControl.pin.below(of: textLabel).right().margin(margin)
}
return CGSize(width: frame.width, height: max(textLabel.frame.maxY, segmentedControl.frame.maxY) + margin)
}
}