space-ios/iOSClient/Utility/NCAvatar.swift

//
//  NCAvatar.swift
//  Nextcloud
//
//  Created by Marino Faggiana on 16/11/2018.
//  Copyright (c) 2018 Marino Faggiana. All rights reserved.
//
//  Author Marino Faggiana <marino.faggiana@nextcloud.com>
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
//


import Foundation

@IBDesignable class NCAvatar: UIImageView {
    
    @IBInspectable var roundness: CGFloat = 2 {
        didSet{
            layoutSubviews()
        }
    }
    
    @IBInspectable var borderWidth: CGFloat = 5 {
        didSet{
            layoutSubviews()
        }
    }
    
    @IBInspectable var borderColor: UIColor = UIColor.blue {
        didSet{
            layoutSubviews()
        }
    }
    
    @IBInspectable var background: UIColor = UIColor.clear {
        didSet{
            layoutSubviews()
        }
    }
    
    @IBInspectable var enableAvatar: Bool = true {
        didSet{
            layoutSubviews()
        }
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }
    
    override init(frame: CGRect) {
        super.init(frame: frame)
    }
    
    @objc init(image: UIImage?, borderColor: UIColor, borderWidth: CGFloat) {
        super.init(image: image)
        
        self.borderColor = borderColor
        self.borderWidth = borderWidth        
    }

    override func layoutSubviews() {
        super.layoutSubviews()
        
        if !enableAvatar { return }
        
        layer.cornerRadius = bounds.width / roundness
        layer.borderWidth = borderWidth
        layer.borderColor = borderColor.cgColor
        layer.backgroundColor = background.cgColor
        clipsToBounds = true
        
        let path = UIBezierPath(roundedRect: bounds.insetBy(dx: 0.5, dy: 0.5), cornerRadius: bounds.width / roundness)
        let mask = CAShapeLayer()
        
        mask.path = path.cgPath
        layer.mask = mask
    }
}