109 lines
3.2 KiB
Swift
109 lines
3.2 KiB
Swift
//
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// SwitchIndicatorView.swift
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// XIONControlPanel
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//
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// Created by Charles Magahern on 12/31/15.
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// Copyright © 2015 XION. All rights reserved.
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//
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import UIKit
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class SwitchIndicatorView: UIView
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{
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fileprivate var _status: Bool = false
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fileprivate var _foregroundColor: UIColor = UIColor.white
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fileprivate var _outerCircleLayer: CAShapeLayer = CAShapeLayer()
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fileprivate var _offSymbolLayer: CAShapeLayer = CAShapeLayer()
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fileprivate var _onSymbolLayer: CAShapeLayer = CAShapeLayer()
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static fileprivate var lineWidth: CGFloat = 2.0
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override init(frame: CGRect)
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{
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super.init(frame: frame)
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_outerCircleLayer.fillColor = UIColor.clear.cgColor
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_outerCircleLayer.lineWidth = SwitchIndicatorView.lineWidth
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_offSymbolLayer.fillColor = UIColor.clear.cgColor
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_offSymbolLayer.lineWidth = SwitchIndicatorView.lineWidth
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self.layer.addSublayer(_outerCircleLayer)
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self.layer.addSublayer(_offSymbolLayer)
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self.layer.addSublayer(_onSymbolLayer)
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self.status = false
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self.foregroundColor = UIColor.white
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}
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required init?(coder aDecoder: NSCoder)
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{
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fatalError("unsupported")
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}
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override func layoutSubviews()
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{
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super.layoutSubviews()
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let bounds = self.bounds
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let lineWidth = SwitchIndicatorView.lineWidth
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_outerCircleLayer.frame = bounds
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_offSymbolLayer.frame = bounds
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_onSymbolLayer.frame = bounds
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_outerCircleLayer.path = CGPath(ellipseIn: bounds, transform: nil)
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let innerSize = CGSize(width: rint(bounds.size.width / 2.0), height: rint(bounds.size.height / 2.0))
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let innerBounds = CGRect(
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x: rint(bounds.size.width / 2.0 - innerSize.width / 2.0),
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y: rint(bounds.size.height / 2.0 - innerSize.height / 2.0),
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width: innerSize.width,
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height: innerSize.height
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)
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_offSymbolLayer.path = CGPath(ellipseIn: innerBounds, transform: nil)
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let onSymbolSize = CGSize(width: lineWidth, height: innerSize.height)
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let onSymbolRect = CGRect(
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x: rint(bounds.size.width / 2.0 - onSymbolSize.width / 2.0),
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y: rint(bounds.size.height / 2.0 - onSymbolSize.height / 2.0),
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width: onSymbolSize.width,
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height: onSymbolSize.height
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)
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_onSymbolLayer.path = CGPath(rect: onSymbolRect, transform: nil)
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}
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// MARK: API
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var status: Bool
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{
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get
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{
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return _status
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}
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set(status)
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{
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_status = status
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_offSymbolLayer.isHidden = _status
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_onSymbolLayer.isHidden = !_status
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}
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}
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var foregroundColor: UIColor
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{
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get
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{
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return _foregroundColor
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}
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set(color)
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{
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_foregroundColor = color
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_outerCircleLayer.strokeColor = _foregroundColor.cgColor
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_offSymbolLayer.strokeColor = _foregroundColor.cgColor
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_onSymbolLayer.fillColor = _foregroundColor.cgColor
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}
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}
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}
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