//

//  MoreInfoView.swift

//  Swift-Animations

//

//  Created by YouXianMing on 16/8/18.

//  Copyright © 2016年 YouXianMing. All rights reserved.

//

import UIKit

class MoreInfoView: UIView {

    var imageView : UIImageView!

    override init(frame: CGRect) {

        super.init(frame : frame)

        layer.borderWidth   = 0.5

        layer.borderColor   = UIColor.blackColor().CGColor

        layer.masksToBounds = true

        /*

         *     --------------     *

         *-50->|-view-width-|<-50-*

         *     --------------     *

         */

        let rect              = frame

        imageView             = UIImageView(frame: CGRectMake(-, , rect.size.width +  * , rect.size.height))

        imageView.contentMode = .ScaleAspectFill

        self.addSubview(imageView)

    }

    required init?(coder aDecoder: NSCoder) {

        fatalError("init(coder:) has not been implemented")

    }

}

//

//  ScrollImageViewController.swift

//  Swift-Animations

//

//  Created by YouXianMing on 16/8/18.

//  Copyright © 2016年 YouXianMing. All rights reserved.

//

import UIKit

class ScrollImageViewController: FullTitleVisualEffectViewController, UIScrollViewDelegate {

    let viewTag            : Int! =

    var onceLinearEquation : Math!

    var pictures           : [UIImage]!

    var scrollView         : UIScrollView!

    override func setup() {

        super.setup()

        onceLinearEquation = Math(pointA: CGPointMake(, -), pointB: CGPointMake(contentView!.width,  - ))

        pictures           = [UIImage]()

        pictures.append(UIImage(named: "")!)

        pictures.append(UIImage(named: "")!)

        pictures.append(UIImage(named: "")!)

        pictures.append(UIImage(named: "")!)

        pictures.append(UIImage(named: "")!)

        scrollView                                = UIScrollView(frame: (contentView?.bounds)!)

        scrollView.delegate                       = self

        scrollView.pagingEnabled                  = true

        scrollView.backgroundColor                = UIColor.blackColor()

        scrollView.showsHorizontalScrollIndicator = false

        scrollView.bounces                        = false

        scrollView.contentSize                    = CGSizeMake(CGFloat(pictures.count) * width, height)

        contentView?.addSubview(scrollView)

        for i in  ..< pictures.count {

            let showView              = MoreInfoView(frame: CGRectMake(CGFloat(i) * width, , width, height))

            showView.imageView.image = pictures[i]

            showView.tag             = viewTag + i

            scrollView.addSubview(showView)

        }

    }

    func scrollViewDidScroll(scrollView: UIScrollView) {

        let X = scrollView.contentOffset.x

        for i in  ..< pictures.count {

            let showView = scrollView.viewWithTag(viewTag + i) as! MoreInfoView

            showView.imageView.x = onceLinearEquation.k * (X - CGFloat(i) * width) + onceLinearEquation.b

        }

    }

}