//
//  UIImageExt.swift
//  ExtensionKit
//
//  Created by FFIB on 2017/9/14.
//  Copyright © 2017年 FFIB. All rights reserved.
//

import UIKit

public extension UIImage {
    
    func scaledImage(_ scale: CGFloat) -> UIImage? {
        let rect = CGRect(x: 0, y: 0, width: self.size.width * scale, height: self.size.height * scale).integral
        UIGraphicsBeginImageContextWithOptions(rect.size, true, UIScreen.main.scale)
        self.draw(in: rect)
        let image = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()
        return image
    }
    
    static func imageWithColor(_ color: UIColor) -> UIImage {
        let rect = CGRect(x: 0.0, y: 0.0, width: 1.0, height: 1.0)
        UIGraphicsBeginImageContext(rect.size)
        let context = UIGraphicsGetCurrentContext()
        context?.setFillColor(color.cgColor)
        context?.fill(rect)
        let image = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()
        return image!
        
    }
}

public extension UIImage {
    static var defaultAvatar: UIImage? {
        return UIImage(named: "defaultAvatar")
    }
    
    static var photoPlaceholder: UIImage? {
        return UIImage(named: "photoPlaceholder")
    }
    
    struct Navigation {
       public static var background: UIImage? {
        return UIImage(named: "navigation-background")?.resizableImage(withCapInsets: UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 0),
                                                                      resizingMode: .stretch)
        }
        
        public static var verticalPoints: UIImage? {
            return UIImage(named: "navigation-vertical-points")?.resizableImage(withCapInsets: UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 0),
                                                                           resizingMode: .stretch)
        }
    }
    
    
}