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| /* | ||
| The MIT License (MIT) | ||
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| Copyright (c) 2015 Kyohei Yamaguchi | ||
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| 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: | ||
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| The above copyright notice and this permission notice shall be included in all | ||
| copies or substantial portions of the Software. | ||
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| 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. | ||
| */ | ||
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| import UIKit | ||
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| @IBDesignable | ||
| public class KYShutterButton: UIButton { | ||
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| public enum ShutterType: Int { | ||
| case Normal, SlowMotion, TimeLapse | ||
| } | ||
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| public enum ButtonState: Int { | ||
| case Normal, Recording | ||
| } | ||
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| private let _kstartAnimateDuration: CFTimeInterval = 0.5 | ||
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| /**************************************************************************/ | ||
| // MARK: - Properties | ||
| /**************************************************************************/ | ||
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| @IBInspectable var typeRaw: Int = 0 { | ||
| didSet { | ||
| if let type = ShutterType(rawValue: typeRaw) { | ||
| self.shutterType = type | ||
| } else { | ||
| self.shutterType = .Normal | ||
| } | ||
| } | ||
| } | ||
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| @IBInspectable public var buttonColor: UIColor = UIColor.redColor() { | ||
| didSet { | ||
| _circleLayer.backgroundColor = buttonColor.CGColor | ||
| } | ||
| } | ||
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| @IBInspectable public var arcColor: UIColor = UIColor.whiteColor() { | ||
| didSet { | ||
| _arcLayer.strokeColor = arcColor.CGColor | ||
| } | ||
| } | ||
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| @IBInspectable public var progressColor: UIColor = UIColor.whiteColor() { | ||
| didSet { | ||
| _progressLayer.strokeColor = progressColor.CGColor | ||
| _rotateLayer.strokeColor = progressColor.CGColor | ||
| } | ||
| } | ||
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| public var buttonState: ButtonState = .Normal { | ||
| didSet { | ||
| let animation = CABasicAnimation(keyPath: "path") | ||
| animation.fromValue = _circleLayer.path | ||
| animation.duration = 0.15 | ||
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| switch buttonState { | ||
| case .Normal: | ||
| if shutterType == .TimeLapse { | ||
| _progressLayer.removeAllAnimations() | ||
| _rotateLayer.removeAllAnimations() | ||
| } | ||
| animation.toValue = _circlePath.CGPath | ||
| _circleLayer.addAnimation(animation, forKey: "path-anim") | ||
| _circleLayer.path = _circlePath.CGPath | ||
| case .Recording: | ||
| animation.toValue = _roundRectPath.CGPath | ||
| _circleLayer.addAnimation(animation, forKey: "path-anim") | ||
| _circleLayer.path = _roundRectPath.CGPath | ||
| if shutterType == .TimeLapse { | ||
| _progressLayer.addAnimation(_startProgressAnimation, forKey: "start-anim") | ||
| _rotateLayer.addAnimation(_startRotateAnimation, forKey: "rotate-anim") | ||
| _progressLayer.addAnimation(_recordingAnimation, forKey: "recording-anim") | ||
| _rotateLayer.addAnimation(_recordingRotateAnimation, forKey: "recordingRotate-anim") | ||
| _progressLayer.path = p_arcPathWithProgress(1.0).CGPath | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| public var shutterType: ShutterType = .Normal { | ||
| didSet { | ||
| switch shutterType { | ||
| case .Normal: | ||
| _arcLayer.lineDashPattern = nil | ||
| _progressLayer.hidden = true | ||
| case .SlowMotion: | ||
| _arcLayer.lineDashPattern = [1, 1] | ||
| _progressLayer.hidden = true | ||
| case .TimeLapse: | ||
| let diameter = 2*CGFloat(M_PI)*(self.bounds.width/2 - self._arcWidth/2) | ||
| _arcLayer.lineDashPattern = [1, diameter/10 - 1] | ||
| _progressLayer.hidden = false | ||
| } | ||
| } | ||
| } | ||
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| private var _arcWidth: CGFloat { | ||
| return bounds.width * 0.09090 | ||
| } | ||
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| private var _arcMargin: CGFloat { | ||
| return bounds.width * 0.03030 | ||
| } | ||
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| lazy private var _circleLayer: CAShapeLayer = { | ||
| let layer = CAShapeLayer() | ||
| layer.path = self._circlePath.CGPath | ||
| layer.fillColor = self.buttonColor.CGColor | ||
| return layer | ||
| }() | ||
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| lazy private var _arcLayer: CAShapeLayer = { | ||
| let layer = CAShapeLayer() | ||
| let path = UIBezierPath( | ||
| arcCenter: CGPointMake(CGRectGetMidX(self.bounds), CGRectGetMidY(self.bounds)), | ||
| radius: self.bounds.width/2 - self._arcWidth/2, | ||
| startAngle: -CGFloat(M_PI_2), | ||
| endAngle: CGFloat(M_PI*2.0) - CGFloat(M_PI_2), | ||
| clockwise: true | ||
| ) | ||
| layer.path = path.CGPath | ||
| layer.fillColor = UIColor.clearColor().CGColor | ||
| layer.strokeColor = self.arcColor.CGColor | ||
| layer.lineWidth = self._arcWidth | ||
| return layer | ||
| }() | ||
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| lazy private var _progressLayer: CAShapeLayer = { | ||
| let layer = CAShapeLayer() | ||
| let path = self.p_arcPathWithProgress(1.0, clockwise: true) | ||
| let diameter = 2*CGFloat(M_PI)*(self.bounds.width/2 - self._arcWidth/3) | ||
| layer.lineDashPattern = [1, diameter/60 - 1] | ||
| layer.path = path.CGPath | ||
| layer.fillColor = UIColor.clearColor().CGColor | ||
| layer.strokeColor = self.progressColor.CGColor | ||
| layer.lineWidth = self._arcWidth/1.5 | ||
| return layer | ||
| }() | ||
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| lazy private var _rotateLayer: CAShapeLayer = { | ||
| let layer = CAShapeLayer() | ||
| let subPath = UIBezierPath() | ||
| subPath.moveToPoint(CGPointMake(self.bounds.width/2, 0)) | ||
| subPath.addLineToPoint(CGPointMake(self.bounds.width/2, self._arcWidth)) | ||
| layer.strokeColor = self.progressColor.CGColor | ||
| layer.lineWidth = 1 | ||
| layer.path = subPath.CGPath | ||
| layer.frame = self.bounds | ||
| return layer | ||
| }() | ||
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| private var _circlePath: UIBezierPath { | ||
| let side = self.bounds.width - self._arcWidth*2 - self._arcMargin*2 | ||
| return UIBezierPath( | ||
| roundedRect: CGRectMake(bounds.width/2 - side/2, bounds.width/2 - side/2, side, side), | ||
| cornerRadius: side/2 | ||
| ) | ||
| } | ||
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| private var _roundRectPath: UIBezierPath { | ||
| let side = bounds.width * 0.4242 | ||
| return UIBezierPath( | ||
| roundedRect: CGRectMake(bounds.width/2 - side/2, bounds.width/2 - side/2, side, side), | ||
| cornerRadius: side * 0.107 | ||
| ) | ||
| } | ||
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| private var _startProgressAnimation: CAKeyframeAnimation { | ||
| let frameCount = 60 | ||
| var paths = [CGPath]() | ||
| var times = [CGFloat]() | ||
| for i in 1...frameCount { | ||
| let animationProgress = 1/CGFloat(frameCount) * CGFloat(i) - 0.01 | ||
| paths.append(self.p_arcPathWithProgress(animationProgress, clockwise: false).CGPath) | ||
| times.append(CGFloat(i)*0.1) | ||
| } | ||
| let animation = CAKeyframeAnimation(keyPath: "path") | ||
| animation.duration = _kstartAnimateDuration | ||
| animation.values = paths | ||
| return animation | ||
| } | ||
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| private var _startRotateAnimation: CABasicAnimation { | ||
| let animation = CABasicAnimation(keyPath: "transform.rotation.z") | ||
| animation.fromValue = 0 | ||
| animation.toValue = CGFloat(M_PI*2.0) | ||
| animation.duration = _kstartAnimateDuration | ||
| return animation | ||
| } | ||
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| private var _recordingAnimation: CAKeyframeAnimation { | ||
| let frameCount = 60 | ||
| var paths = [CGPath]() | ||
| for i in 1...frameCount { | ||
| let animationProgress = 1/CGFloat(frameCount) * CGFloat(i) | ||
| paths.append(self.p_arcPathWithProgress(animationProgress).CGPath) | ||
| } | ||
| for i in 1...frameCount { | ||
| let animationProgress = 1/CGFloat(frameCount) * CGFloat(i) - 0.01 | ||
| paths.append(self.p_arcPathWithProgress(animationProgress, clockwise: false).CGPath) | ||
| } | ||
| let animation = CAKeyframeAnimation(keyPath: "path") | ||
| animation.duration = 10 | ||
| animation.values = paths | ||
| animation.beginTime = CACurrentMediaTime() + _kstartAnimateDuration | ||
| animation.repeatCount = Float.infinity | ||
| animation.calculationMode = kCAAnimationDiscrete | ||
| return animation | ||
| } | ||
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| private var _recordingRotateAnimation: CABasicAnimation { | ||
| let animation = CABasicAnimation(keyPath: "transform.rotation") | ||
| animation.fromValue = 0 | ||
| animation.toValue = CGFloat(M_PI*2.0) | ||
| animation.duration = 5 | ||
| animation.repeatCount = Float.infinity | ||
| animation.beginTime = CACurrentMediaTime() + _kstartAnimateDuration | ||
| return animation | ||
| } | ||
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| /**************************************************************************/ | ||
| // MARK: - initialize | ||
| /**************************************************************************/ | ||
|
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| public convenience init(frame: CGRect, shutterType: ShutterType, buttonColor: UIColor) { | ||
| self.init(frame: frame) | ||
| self.shutterType = shutterType | ||
| self.buttonColor = buttonColor | ||
| } | ||
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| /**************************************************************************/ | ||
| // MARK: - Override | ||
| /**************************************************************************/ | ||
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| override public var highlighted: Bool { | ||
| didSet { | ||
| _circleLayer.opacity = highlighted ? 0.5 : 1.0 | ||
| } | ||
| } | ||
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| public override func layoutSubviews() { | ||
| super.layoutSubviews() | ||
| if _arcLayer.superlayer != layer { | ||
| layer.addSublayer(_arcLayer) | ||
| } | ||
| if _progressLayer.superlayer != layer { | ||
| layer.addSublayer(_progressLayer) | ||
| } | ||
| if _rotateLayer.superlayer != layer { | ||
| layer.insertSublayer(_rotateLayer, atIndex: 0) | ||
| } | ||
| if _circleLayer.superlayer != layer { | ||
| layer.addSublayer(_circleLayer) | ||
| } | ||
| } | ||
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| /**************************************************************************/ | ||
| // MARK: - Method | ||
| /**************************************************************************/ | ||
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| private func p_arcPathWithProgress(progress: CGFloat, clockwise: Bool = true) -> UIBezierPath { | ||
| let diameter = 2*CGFloat(M_PI)*(self.bounds.width/2 - self._arcWidth/3) | ||
| let startAngle = clockwise ? | ||
| -CGFloat(M_PI_2) : | ||
| -CGFloat(M_PI_2) + CGFloat(M_PI)*(540/diameter)/180 | ||
| let endAngle = clockwise ? | ||
| CGFloat(M_PI*2.0)*progress - CGFloat(M_PI_2) : | ||
| CGFloat(M_PI*2.0)*progress - CGFloat(M_PI_2) + CGFloat(M_PI)*(540/diameter)/180 | ||
| let path = UIBezierPath( | ||
| arcCenter: CGPointMake(CGRectGetMidX(self.bounds), CGRectGetMidY(self.bounds)), | ||
| radius: self.bounds.width/2 - self._arcWidth/3, | ||
| startAngle: startAngle, | ||
| endAngle: endAngle, | ||
| clockwise: clockwise | ||
| ) | ||
| return path | ||
| } | ||
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| } |
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