XLForm/Examples/Swift/SwiftExample/CustomRows/Weekdays/XLFormWeekDaysCell.swift

//  XLFormWeekDaysCell.swift
//  XLForm ( https://github.com/xmartlabs/XLForm )
//
//  Copyright (c) 2014-2015 Xmartlabs ( http://xmartlabs.com )
//
//
// 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.


let XLFormRowDescriptorTypeWeekDays = "XLFormRowDescriptorTypeWeekDays"


class XLFormWeekDaysCell : XLFormBaseCell {
    
    enum kWeekDay: Int {
        case
        sunday = 1,
        monday,
        tuesday,
        wednesday,
        thursday,
        friday,
        saturday
        
        func description() -> String {
            switch self {
            case .sunday:
                return "Sunday"
            case .monday:
                return "Monday"
            case .tuesday:
                return "Tuesday"
            case .wednesday:
                return "Wednesday"
            case .thursday:
                return "Thursday"
            case .friday:
                return "Friday"
            case .saturday:
                return "Saturday"
            }
        }
        
        //Add Custom Functions 
        
        //Allows for iteration as needed (for in ...)
        static let allValues = [sunday,
                                monday,
                                tuesday,
                                wednesday,
                                thursday,
                                friday,
                                saturday]
    }
    
    @IBOutlet weak var sundayButton: UIButton!
    @IBOutlet weak var mondayButton: UIButton!
    @IBOutlet weak var tuesdayButton: UIButton!
    @IBOutlet weak var wednesdayButton: UIButton!
    @IBOutlet weak var thursdayButton: UIButton!
    @IBOutlet weak var fridayButton: UIButton!
    @IBOutlet weak var saturdayButton: UIButton!

//MARK: - XLFormDescriptorCell
    
    override func configure() {
        super.configure()
        selectionStyle = .none
        configureButtons()
    }
    
    
    override func update() {
        super.update()
        updateButtons()
    }
    
    override static func formDescriptorCellHeight(for rowDescriptor: XLFormRowDescriptor!) -> CGFloat {
        return 60
    }
    
//MARK: - Action
    
    @IBAction func dayTapped(_ sender: UIButton) {
        let day = getDayFormButton(sender)
        sender.isSelected = !sender.isSelected
        var newValue = rowDescriptor!.value as! Dictionary<String, Bool>
        newValue[day] = sender.isSelected
        rowDescriptor!.value = newValue
    }
    
//MARK: - Helpers
    
    func configureButtons() {
        for subview in contentView.subviews {
            if let button = subview as? UIButton {
                button.setImage(UIImage(named: "uncheckedDay"), for: UIControl.State())
                button.setImage(UIImage(named: "checkedDay"), for: .selected)
                button.adjustsImageWhenHighlighted = false
                imageTopTitleBottom(button)
            }
        }
    
    }
    
    func updateButtons() {
		let value = rowDescriptor!.value as! Dictionary<String, Bool>

        sundayButton.isSelected = value[kWeekDay.sunday.description()]!
        mondayButton.isSelected = value[kWeekDay.monday.description()]!
        tuesdayButton.isSelected = value[kWeekDay.tuesday.description()]!
        wednesdayButton.isSelected = value[kWeekDay.wednesday.description()]!
        thursdayButton.isSelected = value[kWeekDay.thursday.description()]!
        fridayButton.isSelected = value[kWeekDay.friday.description()]!
        saturdayButton.isSelected = value[kWeekDay.saturday.description()]!
        
        sundayButton.alpha = rowDescriptor!.isDisabled() ? 0.6 : 1
        mondayButton.alpha = mondayButton.alpha
        tuesdayButton.alpha = mondayButton.alpha
        wednesdayButton.alpha = mondayButton.alpha
        thursdayButton.alpha = mondayButton.alpha
        fridayButton.alpha = mondayButton.alpha
        saturdayButton.alpha = mondayButton.alpha
    }
    
    func imageTopTitleBottom(_ button: UIButton) {
        // the space between the image and text
        let spacing : CGFloat = 3.0
        
        // lower the text and push it left so it appears centered
        //  below the image
        let imageSize : CGSize = button.imageView!.image!.size
        button.titleEdgeInsets = UIEdgeInsets(top: 0.0, left: -imageSize.width, bottom: -(imageSize.height + spacing), right: 0.0)
        
        // raise the image and push it right so it appears centered
        //  above the text
        let titleSize : CGSize = (button.titleLabel!.text! as NSString).size(withAttributes: [NSAttributedString.Key.font: button.titleLabel!.font as Any])
        button.imageEdgeInsets = UIEdgeInsets.init(top: -(titleSize.height + spacing), left: 0.0, bottom: 0.0, right: -titleSize.width)
    }
    
    func getDayFormButton(_ button: UIButton) -> String {
        switch button {
        case sundayButton:
            return kWeekDay.sunday.description()
        case mondayButton:
            return kWeekDay.monday.description()
        case tuesdayButton:
            return kWeekDay.tuesday.description()
        case wednesdayButton:
            return kWeekDay.wednesday.description()
        case thursdayButton:
            return kWeekDay.thursday.description()
        case fridayButton:
            return kWeekDay.friday.description()
        default:
            return kWeekDay.saturday.description()
        }
    }
    
}