//
//  CYLPlusButtonSubclass.swift
//
//  v1.16.0 Created by 微博@iOS程序犭袁 ( http://weibo.com/luohanchenyilong/ ) on 10/20/15.
//  Copyright © 2018 https://github.com/ChenYilong . All rights reserved.
//

import UIKit
import CYLTabBarController

class CYLPlusButtonSubclass: CYLPlusButton,CYLPlusButtonSubclassing {

    
    static func plusButton() -> Any! {
        let button = CYLPlusButtonSubclass()
        button.setImage(UIImage(named: "post_normal"), for: .normal)
        button.titleLabel?.textAlignment = .center

        button.titleLabel?.font = UIFont.systemFont(ofSize: 10)
        
        button.setTitle("发布", for: .normal)
        button.setTitleColor(UIColor.gray, for: .normal)
        
        button.setTitle("选中", for: .selected)
        button.setTitleColor(UIColor.blue, for: .selected)
        
        button.adjustsImageWhenHighlighted = false
        button.sizeToFit()
        return button
    }
    
    static func indexOfPlusButtonInTabBar() -> UInt {
        return 2
    }
    
    static func multiplier(ofTabBarHeight tabBarHeight: CGFloat) -> CGFloat {
        return 0.3
    }
   
    static func constantOfPlusButtonCenterYOffset(forTabBarHeight tabBarHeight: CGFloat) -> CGFloat {
        return -10
    }
    
    static func plusChildViewController() -> UIViewController! {
        let vc = PublishViewController()
        let nav = UINavigationController(rootViewController: vc)
        return nav
        
    }
    
    
    static func shouldSelectPlusChildViewController() -> Bool {
        return true
    }
    
    override func layoutSubviews() {
        super.layoutSubviews()
        
        // tabbar UI layout setup
        let imageViewEdgeWidth:CGFloat  = self.bounds.size.width * 0.7
        let imageViewEdgeHeight:CGFloat = imageViewEdgeWidth * 0.9
        
        let centerOfView    = self.bounds.size.width * 0.5
        let labelLineHeight = self.titleLabel!.font.lineHeight
        let verticalMargin = (self.bounds.size.height - labelLineHeight - imageViewEdgeHeight ) * 0.5
        
        let centerOfImageView = verticalMargin + imageViewEdgeHeight * 0.5
        let centerOfTitleLabel = imageViewEdgeHeight + verticalMargin * 2  + labelLineHeight * 0.5 + 10
        
        //imageView position layout
        self.imageView!.bounds = CGRect(x:0, y:0, width:imageViewEdgeWidth, height:imageViewEdgeHeight)
        self.imageView!.center = CGPoint(x:centerOfView, y:centerOfImageView)
        
        //title position layout
        self.titleLabel!.bounds = CGRect(x:0, y:0, width:self.bounds.size.width,height:labelLineHeight)
        self.titleLabel!.center = CGPoint(x:centerOfView, y:centerOfTitleLabel)
        
    }
    

}