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Mike Renoir 13dbcc4a82 stories
2023-06-28 19:24:13 +02:00

802 lines
35 KiB
Swift

//
// CAAnimationUtils.swift
// TGUIKit
//
// Created by keepcoder on 15/09/16.
// Copyright © 2016 Telegram. All rights reserved.
//
import Cocoa
@objc public class CALayerAnimationDelegate: NSObject, CAAnimationDelegate {
var completion: ((Bool) -> Void)?
public init(completion: ((Bool) -> Void)?) {
self.completion = completion
super.init()
}
@objc public func animationDidStop(_ anim: CAAnimation, finished flag: Bool) {
if let completion = self.completion {
completion(flag)
}
}
}
public extension NSView {
static func animationDurationFactor() -> Double {
return 1.0
}
}
private let completionKey = "CAAnimationUtils_completion"
public extension CAMediaTimingFunctionName {
static var spring: CAMediaTimingFunctionName {
return CAMediaTimingFunctionName(rawValue: "CAAnimationUtilsSpringCurve")
}
}
public extension CAAnimation {
var completion: ((Bool) -> Void)? {
get {
if let delegate = self.delegate as? CALayerAnimationDelegate {
return delegate.completion
} else {
return nil
}
} set(value) {
if let delegate = self.delegate as? CALayerAnimationDelegate {
delegate.completion = value
} else {
self.delegate = CALayerAnimationDelegate(completion: value)
}
}
}
}
public func makeSpringAnimation(_ path:String) -> CABasicAnimation {
let springAnimation:CASpringAnimation = CASpringAnimation(keyPath: path)
springAnimation.mass = 3.0;
springAnimation.stiffness = 1000.0;
springAnimation.damping = 500.0;
springAnimation.initialVelocity = 0.0;
springAnimation.duration = 0.5;//springAnimation.settlingDuration;
springAnimation.timingFunction = CAMediaTimingFunction(name: CAMediaTimingFunctionName.linear)
return springAnimation;
}
public func makeSpringBounceAnimation(_ path:String, _ initialVelocity:CGFloat, _ damping: CGFloat = 88.0) -> CABasicAnimation {
let springAnimation:CASpringAnimation = CASpringAnimation(keyPath: path)
springAnimation.mass = 5.0
springAnimation.stiffness = 900.0
springAnimation.damping = damping
springAnimation.initialVelocity = initialVelocity
springAnimation.duration = springAnimation.settlingDuration
springAnimation.timingFunction = CAMediaTimingFunction(name: CAMediaTimingFunctionName.linear)
return springAnimation;
}
public extension CALayer {
func makeAnimation(from: AnyObject, to: AnyObject, keyPath: String, timingFunction: CAMediaTimingFunctionName, duration: Double, delay: Double = 0.0, mediaTimingFunction: CAMediaTimingFunction? = nil, removeOnCompletion: Bool = true, additive: Bool = false, completion: ((Bool) -> Void)? = nil) -> CAAnimation {
if timingFunction == .spring {
let animation = makeSpringAnimation(keyPath)
animation.fromValue = from
animation.toValue = to
animation.isRemovedOnCompletion = removeOnCompletion
animation.fillMode = .forwards
if let completion = completion {
animation.delegate = CALayerAnimationDelegate(completion: completion)
}
let k = Float(NSView.animationDurationFactor())
var speed: Float = 1.0
if k != 0 && k != 1 {
speed = Float(1.0) / k
}
animation.speed = speed * Float(animation.duration / duration)
animation.isAdditive = additive
if !delay.isZero {
animation.beginTime = CACurrentMediaTime() + delay * NSView.animationDurationFactor()
animation.fillMode = .both
}
return animation
} else {
let k = Float(NSView.animationDurationFactor())
var speed: Float = 1.0
if k != 0 && k != 1 {
speed = Float(1.0) / k
}
let animation = CABasicAnimation(keyPath: keyPath)
animation.fromValue = from
animation.toValue = to
animation.duration = duration
if let mediaTimingFunction = mediaTimingFunction {
animation.timingFunction = mediaTimingFunction
} else {
animation.timingFunction = CAMediaTimingFunction(name: timingFunction)
}
animation.isRemovedOnCompletion = removeOnCompletion
animation.fillMode = .forwards
animation.speed = speed
animation.isAdditive = additive
if let completion = completion {
animation.delegate = CALayerAnimationDelegate(completion: completion)
}
if !delay.isZero {
animation.beginTime = CACurrentMediaTime() + delay * NSView.animationDurationFactor()
animation.fillMode = .both
}
return animation
}
}
func animate(from: AnyObject, to: AnyObject, keyPath: String, timingFunction: CAMediaTimingFunctionName, duration: Double, delay: Double = 0, removeOnCompletion: Bool = true, additive: Bool = false, completion: ((Bool) -> Void)? = nil, forKey: String? = nil) {
if timingFunction == CAMediaTimingFunctionName.spring {
let animation = makeSpringAnimation(keyPath)
animation.fromValue = from
animation.toValue = to
animation.isRemovedOnCompletion = removeOnCompletion
animation.fillMode = CAMediaTimingFillMode.forwards
if let completion = completion {
animation.delegate = CALayerAnimationDelegate(completion: completion)
}
let k = Float(1.0)
var speed: Float = 1.0
if k != 0 && k != 1 {
speed = Float(1.0) / k
}
animation.speed = speed * Float(animation.duration / duration)
animation.isAdditive = additive
if !delay.isZero {
animation.beginTime = CACurrentMediaTime() + delay * NSView.animationDurationFactor()
animation.fillMode = .both
}
self.add(animation, forKey: keyPath)
} else {
let k = Float(1.0)
var speed: Float = 1.0
if k != 0 && k != 1 {
speed = Float(1.0) / k
}
let animation = CABasicAnimation(keyPath: keyPath)
animation.fromValue = from
animation.toValue = to
animation.duration = duration
animation.timingFunction = CAMediaTimingFunction(name: timingFunction)
animation.isRemovedOnCompletion = removeOnCompletion
animation.fillMode = .forwards
animation.speed = speed
animation.isAdditive = additive
if !delay.isZero {
animation.beginTime = CACurrentMediaTime() + delay * NSView.animationDurationFactor()
animation.fillMode = .both
}
if let completion = completion {
animation.delegate = CALayerAnimationDelegate(completion: completion)
}
self.add(animation, forKey: forKey ?? keyPath)
}
}
func animateAdditive(from: NSValue, to: NSValue, keyPath: String, key: String, timingFunction: CAMediaTimingFunctionName, duration: Double, removeOnCompletion: Bool = true, completion: ((Bool) -> Void)? = nil) {
let k = Float(1.0)
var speed: Float = 1.0
if k != 0 && k != 1 {
speed = Float(1.0) / k
}
let animation = CABasicAnimation(keyPath: keyPath)
animation.fromValue = from
animation.toValue = to
animation.duration = duration
animation.timingFunction = CAMediaTimingFunction(name: timingFunction)
animation.isRemovedOnCompletion = removeOnCompletion
animation.fillMode = .forwards
animation.speed = speed
animation.isAdditive = true
if let completion = completion {
animation.delegate = CALayerAnimationDelegate(completion: completion)
}
self.add(animation, forKey: key)
}
func animateScaleSpring(from: CGFloat, to: CGFloat, duration: Double, delay: Double = 0, initialVelocity: CGFloat = 0.0, removeOnCompletion: Bool = true, additive: Bool = false, bounce: Bool = true, center: Bool = true, completion: ((Bool) -> Void)? = nil) {
let animation = bounce ? makeSpringBounceAnimation("transform", initialVelocity) : makeSpringAnimation("transform")
var fr = CATransform3DIdentity
if center {
fr = CATransform3DTranslate(fr, floorToScreenPixels(System.backingScale, frame.width / 2), floorToScreenPixels(System.backingScale, frame.height / 2), 0)
}
fr = CATransform3DScale(fr, from, from, 1)
if center {
fr = CATransform3DTranslate(fr, -floorToScreenPixels(System.backingScale, frame.width / 2), -floorToScreenPixels(System.backingScale, frame.height / 2), 0)
}
animation.fromValue = NSValue(caTransform3D: fr)
animation.toValue = to
animation.isRemovedOnCompletion = removeOnCompletion
animation.fillMode = .forwards
if let completion = completion {
animation.delegate = CALayerAnimationDelegate(completion: completion)
}
let speed: Float = 1.0
if !delay.isZero {
animation.beginTime = CACurrentMediaTime() + delay * NSView.animationDurationFactor()
animation.fillMode = .both
}
animation.speed = speed * Float(animation.duration / duration)
animation.isAdditive = additive
var tr = CATransform3DIdentity
if center {
tr = CATransform3DTranslate(tr, floorToScreenPixels(System.backingScale, frame.width / 2), floorToScreenPixels(System.backingScale, frame.height / 2), 0)
}
tr = CATransform3DScale(tr, to, to, 1)
if center {
tr = CATransform3DTranslate(tr, -floorToScreenPixels(System.backingScale, frame.width / 2), -floorToScreenPixels(System.backingScale, frame.height / 2), 0)
}
animation.toValue = NSValue(caTransform3D: tr)
self.add(animation, forKey: "transform")
}
func animateScaleSpringFrom(anchor: NSPoint, from: CGFloat, to: CGFloat, duration: Double, initialVelocity: CGFloat = 0.0, removeOnCompletion: Bool = true, additive: Bool = false, bounce: Bool = true, completion: ((Bool) -> Void)? = nil) {
let animation = bounce ? makeSpringBounceAnimation("transform", initialVelocity) : makeSpringAnimation("transform")
var fr = CATransform3DIdentity
fr = CATransform3DTranslate(fr, anchor.x, anchor.y, 0)
fr = CATransform3DScale(fr, from, from, 1)
fr = CATransform3DTranslate(fr, -anchor.x, -anchor.y, 0)
animation.fromValue = NSValue(caTransform3D: fr)
animation.toValue = to
animation.isRemovedOnCompletion = removeOnCompletion
animation.fillMode = .forwards
if let completion = completion {
animation.delegate = CALayerAnimationDelegate(completion: completion)
}
let speed: Float = 1.0
animation.speed = speed * Float(animation.duration / duration)
animation.isAdditive = additive
var tr = CATransform3DIdentity
tr = CATransform3DTranslate(tr, anchor.x, anchor.y, 0)
tr = CATransform3DScale(tr, to, to, 1)
tr = CATransform3DTranslate(tr, -anchor.x, -anchor.y, 0)
animation.toValue = NSValue(caTransform3D: tr)
self.add(animation, forKey: "transform")
}
func animateScaleSpringFromX(anchor: NSPoint, from: CGFloat, to: CGFloat, duration: Double, initialVelocity: CGFloat = 0.0, removeOnCompletion: Bool = true, additive: Bool = false, bounce: Bool = true, completion: ((Bool) -> Void)? = nil) {
let animation = bounce ? makeSpringBounceAnimation("transform.scale.x", initialVelocity) : makeSpringAnimation("transform.scale.x")
var fr = CATransform3DIdentity
fr = CATransform3DTranslate(fr, anchor.x, anchor.y, 0)
fr = CATransform3DScale(fr, from, 1, 1)
fr = CATransform3DTranslate(fr, -anchor.x, -anchor.y, 0)
animation.fromValue = NSValue(caTransform3D: fr)
animation.toValue = to
animation.isRemovedOnCompletion = removeOnCompletion
animation.fillMode = .forwards
if let completion = completion {
animation.delegate = CALayerAnimationDelegate(completion: completion)
}
let speed: Float = 1.0
animation.speed = speed * Float(animation.duration / duration)
animation.isAdditive = additive
var tr = CATransform3DIdentity
tr = CATransform3DTranslate(tr, anchor.x, anchor.y, 0)
tr = CATransform3DScale(tr, to, 1, 1)
tr = CATransform3DTranslate(tr, -anchor.x, -anchor.y, 0)
animation.toValue = NSValue(caTransform3D: tr)
self.add(animation, forKey: "transform.scale.x")
}
func animateScaleSpringFromY(anchor: NSPoint, from: CGFloat, to: CGFloat, duration: Double, initialVelocity: CGFloat = 0.0, removeOnCompletion: Bool = true, additive: Bool = false, bounce: Bool = true, completion: ((Bool) -> Void)? = nil) {
let animation = bounce ? makeSpringBounceAnimation("transform.scale.y", initialVelocity) : makeSpringAnimation("transform.scale.y")
var fr = CATransform3DIdentity
fr = CATransform3DTranslate(fr, anchor.x, anchor.y, 0)
fr = CATransform3DScale(fr, 1, from, 1)
fr = CATransform3DTranslate(fr, -anchor.x, -anchor.y, 0)
animation.fromValue = NSValue(caTransform3D: fr)
animation.toValue = to
animation.isRemovedOnCompletion = removeOnCompletion
animation.fillMode = .forwards
if let completion = completion {
animation.delegate = CALayerAnimationDelegate(completion: completion)
}
let speed: Float = 1.0
animation.speed = speed * Float(animation.duration / duration)
animation.isAdditive = additive
var tr = CATransform3DIdentity
tr = CATransform3DTranslate(tr, anchor.x, anchor.y, 0)
tr = CATransform3DScale(tr, 1, to, 1)
tr = CATransform3DTranslate(tr, -anchor.x, -anchor.y, 0)
animation.toValue = NSValue(caTransform3D: tr)
self.add(animation, forKey: "transform.scale.y")
}
func animateScaleAnchor(anchor: NSPoint, from: CGFloat, to: CGFloat, duration: Double, timingFunction: CAMediaTimingFunctionName = .easeInEaseOut, removeOnCompletion: Bool = true, additive: Bool = false, completion: ((Bool) -> Void)? = nil) {
let animation = CABasicAnimation(keyPath: "transform")
animation.timingFunction = CAMediaTimingFunction(name: timingFunction)
var fr = CATransform3DIdentity
fr = CATransform3DTranslate(fr, anchor.x, anchor.y, 0)
fr = CATransform3DScale(fr, from, from, 1)
fr = CATransform3DTranslate(fr, -anchor.x, -anchor.y, 0)
animation.fromValue = NSValue(caTransform3D: fr)
animation.toValue = to
animation.isRemovedOnCompletion = removeOnCompletion
animation.fillMode = .forwards
if let completion = completion {
animation.delegate = CALayerAnimationDelegate(completion: completion)
}
let speed: Float = 1.0
animation.speed = speed * Float(animation.duration / duration)
animation.isAdditive = additive
var tr = CATransform3DIdentity
tr = CATransform3DTranslate(tr, anchor.x, anchor.y, 0)
tr = CATransform3DScale(tr, to, to, 1)
tr = CATransform3DTranslate(tr, -anchor.x, -anchor.y, 0)
animation.toValue = NSValue(caTransform3D: tr)
self.add(animation, forKey: "transform")
}
func animateScaleCenter(from: CGFloat, to: CGFloat, duration: Double, removeOnCompletion: Bool = true, timingFunction: CAMediaTimingFunctionName = .easeInEaseOut, additive: Bool = false, completion: ((Bool) -> Void)? = nil) {
let animation = CABasicAnimation(keyPath: "transform")
animation.timingFunction = CAMediaTimingFunction(name: timingFunction)
var fr = CATransform3DIdentity
fr = CATransform3DTranslate(fr, floorToScreenPixels(System.backingScale, frame.width / 2), floorToScreenPixels(System.backingScale, frame.height / 2), 0)
fr = CATransform3DScale(fr, from, from, 1)
fr = CATransform3DTranslate(fr, -floorToScreenPixels(System.backingScale, frame.width / 2), -floorToScreenPixels(System.backingScale, frame.height / 2), 0)
animation.fromValue = NSValue(caTransform3D: fr)
animation.toValue = to
animation.isRemovedOnCompletion = removeOnCompletion
animation.fillMode = .forwards
if let completion = completion {
animation.delegate = CALayerAnimationDelegate(completion: completion)
}
animation.duration = duration
animation.isAdditive = additive
var tr = CATransform3DIdentity
tr = CATransform3DTranslate(tr, floorToScreenPixels(System.backingScale, frame.width / 2), floorToScreenPixels(System.backingScale, frame.height / 2), 0)
tr = CATransform3DScale(tr, to, to, 1)
tr = CATransform3DTranslate(tr, -floorToScreenPixels(System.backingScale, frame.width / 2), -floorToScreenPixels(System.backingScale, frame.height / 2), 0)
animation.toValue = NSValue(caTransform3D: tr)
self.add(animation, forKey: "transform")
}
func animateScaleCenter(fromX: CGFloat, fromY: CGFloat, to: CGFloat, anchor: NSPoint, duration: Double, removeOnCompletion: Bool = true, timingFunction: CAMediaTimingFunctionName = .easeInEaseOut, additive: Bool = false, completion: ((Bool) -> Void)? = nil) {
let animation = CABasicAnimation(keyPath: "transform")
animation.timingFunction = CAMediaTimingFunction(name: timingFunction)
var fr = CATransform3DIdentity
fr = CATransform3DTranslate(fr, anchor.x, anchor.y, 0)
fr = CATransform3DScale(fr, fromX, fromY, 1)
fr = CATransform3DTranslate(fr, -anchor.x, -anchor.y, 0)
animation.fromValue = NSValue(caTransform3D: fr)
animation.toValue = to
animation.isRemovedOnCompletion = removeOnCompletion
animation.fillMode = .forwards
if let completion = completion {
animation.delegate = CALayerAnimationDelegate(completion: completion)
}
animation.duration = duration
animation.isAdditive = additive
var tr = CATransform3DIdentity
fr = CATransform3DTranslate(fr, anchor.x, anchor.y, 0)
tr = CATransform3DScale(tr, to, to, 1)
fr = CATransform3DTranslate(fr, -anchor.x, -anchor.y, 0)
animation.toValue = NSValue(caTransform3D: tr)
self.add(animation, forKey: "transform")
}
func animateScaleXCenter(from: CGFloat, to: CGFloat, duration: Double, removeOnCompletion: Bool = true, timingFunction: CAMediaTimingFunctionName = .easeInEaseOut, additive: Bool = false, completion: ((Bool) -> Void)? = nil) {
let animation = CABasicAnimation(keyPath: "transform")
animation.timingFunction = CAMediaTimingFunction(name: timingFunction)
var fr = CATransform3DIdentity
fr = CATransform3DTranslate(fr, frame.width / 2, 0, 0)
fr = CATransform3DScale(fr, from, from, 1)
fr = CATransform3DTranslate(fr, -frame.width / 2, 0, 0)
animation.fromValue = NSValue(caTransform3D: fr)
animation.toValue = to
animation.isRemovedOnCompletion = removeOnCompletion
animation.fillMode = .forwards
if let completion = completion {
animation.delegate = CALayerAnimationDelegate(completion: completion)
}
animation.duration = duration
animation.isAdditive = additive
var tr = CATransform3DIdentity
tr = CATransform3DTranslate(tr, frame.width / 2, 0, 0)
tr = CATransform3DScale(tr, to, to, 1)
tr = CATransform3DTranslate(tr, -frame.width / 2, 0, 0)
animation.toValue = NSValue(caTransform3D: tr)
self.add(animation, forKey: "transform")
}
func animateScaleYCenter(from: CGFloat, to: CGFloat, duration: Double, removeOnCompletion: Bool = true, timingFunction: CAMediaTimingFunctionName = .easeInEaseOut, additive: Bool = false, completion: ((Bool) -> Void)? = nil) {
let animation = CABasicAnimation(keyPath: "transform")
animation.timingFunction = CAMediaTimingFunction(name: timingFunction)
var fr = CATransform3DIdentity
fr = CATransform3DTranslate(fr, 0, frame.height / 2, 0)
fr = CATransform3DScale(fr, from, from, 1)
fr = CATransform3DTranslate(fr, 0, -frame.height / 2, 0)
animation.fromValue = NSValue(caTransform3D: fr)
animation.toValue = to
animation.isRemovedOnCompletion = removeOnCompletion
animation.fillMode = .forwards
if let completion = completion {
animation.delegate = CALayerAnimationDelegate(completion: completion)
}
animation.duration = duration
animation.isAdditive = additive
var tr = CATransform3DIdentity
tr = CATransform3DTranslate(tr, 0, frame.height / 2, 0)
tr = CATransform3DScale(tr, to, to, 1)
tr = CATransform3DTranslate(tr, 0, -frame.height / 2, 0)
animation.toValue = NSValue(caTransform3D: tr)
self.add(animation, forKey: "transform")
}
func animateRotateCenter(from: CGFloat, to: CGFloat, duration: Double, removeOnCompletion: Bool = true, additive: Bool = false, completion: ((Bool) -> Void)? = nil) {
let animation = makeSpringAnimation("transform")
var fr = CATransform3DIdentity
fr = CATransform3DTranslate(fr, floorToScreenPixels(System.backingScale, frame.width / 2), floorToScreenPixels(System.backingScale, frame.height / 2), 0)
fr = CATransform3DRotate(fr, from * CGFloat.pi / 180, 0, 0, 1.0)
fr = CATransform3DTranslate(fr, -floorToScreenPixels(System.backingScale, frame.width / 2), -floorToScreenPixels(System.backingScale, frame.height / 2), 0)
animation.fromValue = NSValue(caTransform3D: fr)
animation.isRemovedOnCompletion = removeOnCompletion
animation.fillMode = .forwards
if let completion = completion {
animation.delegate = CALayerAnimationDelegate(completion: completion)
}
let speed: Float = 1.0
animation.speed = speed * Float(animation.duration / duration)
animation.isAdditive = additive
var tr = CATransform3DIdentity
tr = CATransform3DTranslate(tr, floorToScreenPixels(System.backingScale, frame.width / 2), floorToScreenPixels(System.backingScale, frame.height / 2), 0)
tr = CATransform3DRotate(fr, to * CGFloat.pi / 180, 0, 0, 1.0)
tr = CATransform3DTranslate(tr, -floorToScreenPixels(System.backingScale, frame.width / 2), -floorToScreenPixels(System.backingScale, frame.height / 2), 0)
animation.toValue = NSValue(caTransform3D: tr)
self.add(animation, forKey: "transform")
// let animation = CABasicAnimation(keyPath: "transform")
// animation.timingFunction = CAMediaTimingFunction(name: CAMediaTimingFunctionName.easeOut)
// var fr = CATransform3DIdentity
// fr = CATransform3DTranslate(fr, floorToScreenPixels(backingScaleFactor, frame.width / 2), floorToScreenPixels(backingScaleFactor, frame.height / 2), 0)
// fr = CATransform3DRotate(fr, from * CGFloat.pi / 180, 0, 0, 1.0)
// fr = CATransform3DTranslate(fr, -floorToScreenPixels(backingScaleFactor, frame.width / 2), -floorToScreenPixels(backingScaleFactor, frame.height / 2), 0)
//
// animation.fromValue = NSValue(caTransform3D: fr)
// animation.isRemovedOnCompletion = removeOnCompletion
// // animation.fillMode = kCAFillModeForwards
// if let completion = completion {
// animation.delegate = CALayerAnimationDelegate(completion: completion)
// }
//
// let speed: Float = 1.0
//
//
// animation.speed = speed * Float(animation.duration / duration)
// animation.isAdditive = additive
//
// var tr = CATransform3DIdentity
// // tr = CATransform3DTranslate(tr, floorToScreenPixels(backingScaleFactor, frame.width / 2), floorToScreenPixels(backingScaleFactor, frame.height / 2), 0)
// tr = CATransform3DRotate(fr, to * CGFloat.pi / 180, 0, 0, 1.0)
// //tr = CATransform3DTranslate(tr, -floorToScreenPixels(backingScaleFactor, frame.width / 2), -floorToScreenPixels(backingScaleFactor, frame.height / 2), 0)
// animation.toValue = NSValue(caTransform3D: tr)
//
//
// self.add(animation, forKey: "transform")
}
func animateAlpha(from: CGFloat, to: CGFloat, duration: Double, timingFunction: CAMediaTimingFunctionName = CAMediaTimingFunctionName.easeOut, removeOnCompletion: Bool = true, completion: ((Bool) -> ())? = nil) {
self.animate(from: NSNumber(value: Float(from)), to: NSNumber(value: Float(to)), keyPath: "opacity", timingFunction: timingFunction, duration: duration, removeOnCompletion: removeOnCompletion, completion: completion)
}
func animateSpring(from: AnyObject, to: AnyObject, keyPath: String, duration: Double, initialVelocity: CGFloat = 0.0, damping: CGFloat = 88.0, removeOnCompletion: Bool = true, additive: Bool = false, completion: ((Bool) -> Void)? = nil) {
let animation: CABasicAnimation
if #available(iOS 9.0, *) {
animation = makeSpringBounceAnimation(keyPath, initialVelocity, damping)
} else {
animation = makeSpringAnimation(keyPath)
}
animation.fromValue = from
animation.toValue = to
animation.isRemovedOnCompletion = removeOnCompletion
animation.fillMode = .forwards
if let completion = completion {
animation.delegate = CALayerAnimationDelegate(completion: completion)
}
let k = Float(1)
var speed: Float = 1.0
if k != 0 && k != 1 {
speed = Float(1.0) / k
}
animation.speed = speed * Float(animation.duration / duration)
animation.isAdditive = additive
self.add(animation, forKey: keyPath)
}
func animateScale(from: CGFloat, to: CGFloat, duration: Double, timingFunction: CAMediaTimingFunctionName = CAMediaTimingFunctionName.easeInEaseOut, delay: Double = 0, removeOnCompletion: Bool = true, completion: ((Bool) -> Void)? = nil) {
self.animate(from: NSNumber(value: Float(from)), to: NSNumber(value: Float(to)), keyPath: "transform.scale", timingFunction: timingFunction, duration: duration, delay: delay, removeOnCompletion: removeOnCompletion, completion: completion)
}
func animateScaleX(from: CGFloat, to: CGFloat, duration: Double, timingFunction: CAMediaTimingFunctionName = CAMediaTimingFunctionName.easeInEaseOut, removeOnCompletion: Bool = true, completion: ((Bool) -> Void)? = nil) {
self.animate(from: NSNumber(value: Float(from)), to: NSNumber(value: Float(to)), keyPath: "transform.scale.x", timingFunction: timingFunction, duration: duration, removeOnCompletion: removeOnCompletion, completion: completion)
}
func animateScaleY(from: CGFloat, to: CGFloat, duration: Double, timingFunction: CAMediaTimingFunctionName = CAMediaTimingFunctionName.easeInEaseOut, removeOnCompletion: Bool = true, completion: ((Bool) -> Void)? = nil) {
self.animate(from: NSNumber(value: Float(from)), to: NSNumber(value: Float(to)), keyPath: "transform.scale.y", timingFunction: timingFunction, duration: duration, removeOnCompletion: removeOnCompletion, completion: completion)
}
func animatePosition(from: NSPoint, to: NSPoint, duration: Double = 0.2, timingFunction: CAMediaTimingFunctionName = CAMediaTimingFunctionName.easeOut, removeOnCompletion: Bool = true, additive: Bool = false, completion: ((Bool) -> Void)? = nil) {
if from == to {
if let completion = completion {
completion(true)
}
return
}
self.animate(from: NSValue(point: from), to: NSValue(point: to), keyPath: "position", timingFunction: timingFunction, duration: duration, removeOnCompletion: removeOnCompletion, additive: additive, completion: completion)
}
func animateBounds(from: NSRect, to: NSRect, duration: Double = 0.2, timingFunction: CAMediaTimingFunctionName = CAMediaTimingFunctionName.easeOut, removeOnCompletion: Bool = true, additive: Bool = false, forKey: String? = nil, completion: ((Bool) -> Void)? = nil) {
if from == to {
if let completion = completion {
completion(true)
}
return
}
self.animate(from: NSValue(rect: from), to: NSValue(rect: to), keyPath: "bounds", timingFunction: timingFunction, duration: duration, removeOnCompletion: removeOnCompletion, additive: additive, completion: completion, forKey: forKey)
}
func animateBoundsOriginYAdditive(from: CGFloat, to: CGFloat, duration: Double, completion: ((Bool) -> Void)? = nil) {
self.animateAdditive(from: from as NSNumber, to: to as NSNumber, keyPath: "bounds.origin.y", key: "boundsOriginYAdditive", timingFunction: CAMediaTimingFunctionName.easeOut, duration: duration, removeOnCompletion: true, completion: completion)
}
func animateFrame(from: CGRect, to: CGRect, duration: Double, timingFunction: CAMediaTimingFunctionName, removeOnCompletion: Bool = true, additive: Bool = false, completion: ((Bool) -> Void)? = nil) {
if from == to {
if let completion = completion {
completion(true)
}
return
}
self.animatePosition(from: CGPoint(x: from.midX, y: from.midY), to: CGPoint(x: to.midX, y: to.midY), duration: duration, timingFunction: timingFunction, removeOnCompletion: removeOnCompletion, additive: additive, completion: nil)
self.animateBounds(from: CGRect(origin: self.bounds.origin, size: from.size), to: CGRect(origin: self.bounds.origin, size: to.size), duration: duration, timingFunction: timingFunction, removeOnCompletion: removeOnCompletion, additive: additive, completion: completion)
}
func shake(_ duration:CFTimeInterval, from:NSPoint, to:NSPoint) {
let animation = CABasicAnimation(keyPath: "position")
animation.duration = duration;
animation.repeatCount = 4
animation.autoreverses = true
animation.isRemovedOnCompletion = true
animation.fromValue = NSValue(point: from)
animation.toValue = NSValue(point: to)
self.add(animation, forKey: "position")
}
func animateKeyframes(values: [AnyObject], duration: Double, keyPath: String, timingFunction: CAMediaTimingFunctionName = CAMediaTimingFunctionName.easeOut, mediaTimingFunction: CAMediaTimingFunction? = nil, removeOnCompletion: Bool = true, additive: Bool = false, completion: ((Bool) -> Void)? = nil) {
let k = Float(1)
var speed: Float = 1.0
if k != 0 && k != 1 {
speed = Float(1.0) / k
}
let animation = CAKeyframeAnimation(keyPath: keyPath)
animation.values = values
var keyTimes: [NSNumber] = []
for i in 0 ..< values.count {
if i == 0 {
keyTimes.append(0.0)
} else if i == values.count - 1 {
keyTimes.append(1.0)
} else {
keyTimes.append((Double(i) / Double(values.count - 1)) as NSNumber)
}
}
animation.keyTimes = keyTimes
animation.speed = speed
animation.duration = duration
animation.isAdditive = additive
if let mediaTimingFunction = mediaTimingFunction {
animation.timingFunction = mediaTimingFunction
} else {
animation.timingFunction = CAMediaTimingFunction(name: timingFunction)
}
animation.isRemovedOnCompletion = removeOnCompletion
if let completion = completion {
animation.delegate = CALayerAnimationDelegate(completion: completion)
}
// adjustFrameRate(animation: animation)
self.add(animation, forKey: keyPath)
}
/*
+ (CAAnimation *)shakeWithDuration:(float)duration fromValue:(CGPoint)fromValue toValue:(CGPoint)toValue {
CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"position"];
animation.duration = duration;
animation.repeatCount = 4;
animation.autoreverses = YES;
animation.removedOnCompletion = YES;
NSValue *fromValueValue = [NSValue value:&fromValue withObjCType:@encode(CGPoint)];
NSValue *toValueValue = [NSValue value:&toValue withObjCType:@encode(CGPoint)];
animation.fromValue = fromValueValue;
animation.toValue = toValueValue;
return animation;
}
*/
}
struct ViewportItemSpring {
let stiffness: CGFloat
let damping: CGFloat
let mass: CGFloat
var velocity: CGFloat = 0.0
init(stiffness: CGFloat, damping: CGFloat, mass: CGFloat) {
self.stiffness = stiffness
self.damping = damping
self.mass = mass
}
}
private func a(_ a1: CGFloat, _ a2: CGFloat) -> CGFloat
{
return 1.0 - 3.0 * a2 + 3.0 * a1
}
private func b(_ a1: CGFloat, _ a2: CGFloat) -> CGFloat
{
return 3.0 * a2 - 6.0 * a1
}
private func c(_ a1: CGFloat) -> CGFloat
{
return 3.0 * a1
}
private func calcBezier(_ t: CGFloat, _ a1: CGFloat, _ a2: CGFloat) -> CGFloat
{
return ((a(a1, a2)*t + b(a1, a2))*t + c(a1)) * t
}
private func calcSlope(_ t: CGFloat, _ a1: CGFloat, _ a2: CGFloat) -> CGFloat
{
return 3.0 * a(a1, a2) * t * t + 2.0 * b(a1, a2) * t + c(a1)
}
private func getTForX(_ x: CGFloat, _ x1: CGFloat, _ x2: CGFloat) -> CGFloat {
var t = x
var i = 0
while i < 4 {
let currentSlope = calcSlope(t, x1, x2)
if currentSlope == 0.0 {
return t
} else {
let currentX = calcBezier(t, x1, x2) - x
t -= currentX / currentSlope
}
i += 1
}
return t
}
public func bezierPoint(_ x1: CGFloat, _ y1: CGFloat, _ x2: CGFloat, _ y2: CGFloat, _ x: CGFloat) -> CGFloat
{
var value = calcBezier(getTForX(x, x1, x2), y1, y2)
if value >= 0.997 {
value = 1.0
}
return value
}