94 lines
2.7 KiB
Swift
94 lines
2.7 KiB
Swift
//
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// Copyright (c) 2017 Open Whisper Systems. All rights reserved.
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//
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import UIKit
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import SignalServiceKit
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@objc class AudioProgressView: UIView {
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override var bounds: CGRect {
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didSet {
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if oldValue != bounds {
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updateSubviews()
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}
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}
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}
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override var frame: CGRect {
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didSet {
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if oldValue != frame {
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updateSubviews()
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}
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}
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}
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var horizontalBarColor = UIColor.black {
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didSet {
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updateContent()
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}
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}
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var progressColor = UIColor.blue {
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didSet {
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updateContent()
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}
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}
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private let horizontalBarLayer: CAShapeLayer
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private let progressLayer: CAShapeLayer
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var progress: CGFloat = 0 {
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didSet {
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if oldValue != progress {
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updateContent()
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}
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}
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}
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@available(*, unavailable, message:"use other constructor instead.")
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required init?(coder aDecoder: NSCoder) {
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fatalError("\(#function) is unimplemented.")
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}
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public required init() {
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self.horizontalBarLayer = CAShapeLayer()
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self.progressLayer = CAShapeLayer()
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super.init(frame:CGRect.zero)
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self.layer.addSublayer(self.horizontalBarLayer)
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self.layer.addSublayer(self.progressLayer)
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}
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internal func updateSubviews() {
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AssertIsOnMainThread()
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self.horizontalBarLayer.frame = self.bounds
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self.progressLayer.frame = self.bounds
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updateContent()
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}
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internal func updateContent() {
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AssertIsOnMainThread()
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let horizontalBarPath = UIBezierPath()
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let horizontalBarHeightFraction = CGFloat(0.25)
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let horizontalBarHeight = bounds.size.height * horizontalBarHeightFraction
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horizontalBarPath.append(UIBezierPath(rect: CGRect(x: 0, y:(bounds.size.height - horizontalBarHeight) * 0.5, width:bounds.size.width, height:horizontalBarHeight)))
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horizontalBarLayer.path = horizontalBarPath.cgPath
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horizontalBarLayer.fillColor = horizontalBarColor.cgColor
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let progressHeight = bounds.self.height
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let progressWidth = progressHeight * 0.15
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let progressX = (bounds.self.width - progressWidth) * max(0.0, min(1.0, progress))
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let progressBounds = CGRect(x:progressX, y:0, width:progressWidth, height:progressHeight)
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let progressCornerRadius = progressWidth * 0.5
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let progressPath = UIBezierPath()
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progressPath.append(UIBezierPath(roundedRect: progressBounds, cornerRadius: progressCornerRadius))
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progressLayer.path = progressPath.cgPath
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progressLayer.fillColor = progressColor.cgColor
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}
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}
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