Insure-Genie/Learn Genie/Library/CustomView.swift

//
//  CustomView.swift
//  Learn Genie
//
//  Created by Suraj Kumar Mandal on 12/08/21.
//

import Foundation
import UIKit

@IBDesignable
class CustomView: UIView{
    
    @IBInspectable var borderWidth: CGFloat = 0.0{
        
        didSet{
            
            self.layer.borderWidth = borderWidth
        }
    }
    
    @IBInspectable var cornerRadius: CGFloat = 0.0{
        
        didSet{
            
            self.layer.cornerRadius = cornerRadius
        }
    }
    
    @IBInspectable var shadowOffset: CGSize{
        get{
            return self.layer.shadowOffset
        }
        set{
            self.layer.shadowOffset = newValue
        }
    }
    
    @IBInspectable var shadowColor: UIColor{
        get{
            return UIColor(cgColor: self.layer.shadowColor!)
        }
        set{
            self.layer.shadowColor = newValue.cgColor
        }
    }
    
    @IBInspectable var shadowRadius: CGFloat{
        get{
            return self.layer.shadowRadius
        }
        set{
            self.layer.shadowRadius = newValue
        }
    }
    
    @IBInspectable var shadowOpacity: Float{
        get{
            return self.layer.shadowOpacity
        }
        set{
            self.layer.shadowOpacity = newValue
        }
    }
    
    
    
    
    @IBInspectable var borderColor: UIColor = UIColor.clear {
        
        didSet {
            
            self.layer.borderColor = borderColor.cgColor
        }
    }
    
    override func prepareForInterfaceBuilder() {
        
        super.prepareForInterfaceBuilder()
    }
    
}

@IBDesignable
public class Gradient: UIView {
    @IBInspectable var startColor:   UIColor = .black { didSet { updateColors() }}
    @IBInspectable var endColor:     UIColor = .white { didSet { updateColors() }}
    @IBInspectable var startLocation: Double =   0.05 { didSet { updateLocations() }}
    @IBInspectable var endLocation:   Double =   0.95 { didSet { updateLocations() }}
    @IBInspectable var horizontalMode:  Bool =  false { didSet { updatePoints() }}
    @IBInspectable var diagonalMode:    Bool =  false { didSet { updatePoints() }}
    
    override public class var layerClass: AnyClass { CAGradientLayer.self }
    
    var gradientLayer: CAGradientLayer { layer as! CAGradientLayer }
    
    func updatePoints() {
        if horizontalMode {
            gradientLayer.startPoint = diagonalMode ? .init(x: 1, y: 0) : .init(x: 0, y: 0.5)
            gradientLayer.endPoint   = diagonalMode ? .init(x: 0, y: 1) : .init(x: 1, y: 0.5)
        } else {
            gradientLayer.startPoint = diagonalMode ? .init(x: 0, y: 0) : .init(x: 0.5, y: 0)
            gradientLayer.endPoint   = diagonalMode ? .init(x: 1, y: 1) : .init(x: 0.5, y: 1)
        }
    }
    func updateLocations() {
        gradientLayer.locations = [startLocation as NSNumber, endLocation as NSNumber]
    }
    func updateColors() {
        gradientLayer.colors = [startColor.cgColor, endColor.cgColor]
    }
    override public func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {
        super.traitCollectionDidChange(previousTraitCollection)
        updatePoints()
        updateLocations()
        updateColors()
    }
    
}