71 lines
2.2 KiB
Swift
71 lines
2.2 KiB
Swift
import UIKit
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public final class Separator : UIView {
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private let title: String
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// MARK: Components
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private lazy var titleLabel: UILabel = {
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let result = UILabel()
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result.textColor = Colors.text.withAlphaComponent(Values.mediumOpacity)
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result.font = .systemFont(ofSize: Values.smallFontSize)
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result.textAlignment = .center
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return result
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}()
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private lazy var lineLayer: CAShapeLayer = {
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let result = CAShapeLayer()
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result.lineWidth = Values.separatorThickness
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result.strokeColor = Colors.separator.cgColor
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result.fillColor = UIColor.clear.cgColor
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return result
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}()
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// MARK: Settings
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private static let height: CGFloat = 24
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// MARK: Initialization
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public init(title: String) {
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self.title = title
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super.init(frame: CGRect.zero)
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setUpViewHierarchy()
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}
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public override init(frame: CGRect) {
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preconditionFailure("Use init(title:) instead.")
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}
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public required init?(coder: NSCoder) {
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preconditionFailure("Use init(title:) instead.")
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}
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private func setUpViewHierarchy() {
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titleLabel.text = title
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addSubview(titleLabel)
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titleLabel.center(.horizontal, in: self)
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titleLabel.center(.vertical, in: self)
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layer.insertSublayer(lineLayer, at: 0)
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set(.height, to: Separator.height)
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}
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// MARK: Updating
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public override func layoutSubviews() {
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super.layoutSubviews()
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updateLineLayer()
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}
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private func updateLineLayer() {
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let w = bounds.width
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let h = bounds.height
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let path = UIBezierPath()
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path.move(to: CGPoint(x: 0, y: h / 2))
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let titleLabelFrame = titleLabel.frame.insetBy(dx: -10, dy: -6)
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path.addLine(to: CGPoint(x: titleLabelFrame.origin.x, y: h / 2))
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let oval = UIBezierPath(roundedRect: titleLabelFrame, cornerRadius: Separator.height / 2)
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path.append(oval)
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path.move(to: CGPoint(x: titleLabelFrame.origin.x + titleLabelFrame.width, y: h / 2))
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path.addLine(to: CGPoint(x: w, y: h / 2))
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path.close()
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lineLayer.path = path.cgPath
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}
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}
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