YouQi/Pods/ESTabBarController-swift/Sources/ESTabBarItemMoreContentView.swift

//
//  ESTabBarItemMoreContentView.swift
//
//  Created by Vincent Li on 2017/2/8.
//  Copyright (c) 2013-2018 ESTabBarController (https://github.com/eggswift/ESTabBarController)
//
//  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:
//
//  The above copyright notice and this permission notice shall be included in
//  all copies or substantial portions of the Software.
//
//  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.
//

import UIKit

open class ESTabBarItemMoreContentView: ESTabBarItemContentView {
    
    public override init(frame: CGRect) {
        super.init(frame: frame)
        self.title = NSLocalizedString("More_TabBarItem", bundle: Bundle(for:ESTabBarController.self), comment: "")
        self.image = systemMore(highlighted: false)
        self.selectedImage = systemMore(highlighted: true)
    }
    
    public required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    public func systemMore(highlighted isHighlighted: Bool) -> UIImage? {
        let image = UIImage.init()
        let circleDiameter  = isHighlighted ? 5.0 : 4.0
        let scale = UIScreen.main.scale
        
        UIGraphicsBeginImageContextWithOptions(CGSize.init(width: 32, height: 32), false, scale)
        
        if let context = UIGraphicsGetCurrentContext() {
            context.setLineWidth(1.0)
            for index in 0...2 {
                let tmpRect = CGRect.init(x: 5.0 + 9.0 * Double(index), y: 14.0, width: circleDiameter, height: circleDiameter)
                context.addEllipse(in: tmpRect)
                image.draw(in: tmpRect)
            }

            if isHighlighted {
                context.setFillColor(UIColor.blue.cgColor)
                context.fillPath()
            } else {
                context.strokePath()
            }
            
            let newImage = UIGraphicsGetImageFromCurrentImageContext()
            UIGraphicsEndImageContext()
            return newImage
        }
        
        return nil
    }
    
}