// Set Smooth Tab View on UIView in stroyboard
@IBOutlet weak var smoothTabView: SmoothTabView!

// Or create it without storyboard
let smoothTabView = SmoothTabView()
self.addSubview(smoothTabView)

let items: [SmoothTabItem] = [...]

// For configuring styles create new SmoothTabOptions
var options = SmoothTabOptions()
options.titleColor = UIColor.white
options.titleFont = .systemFont(ofSize: 16)
options.shadow = .default

// Finally call setup smoothTabView with items, options and give delegate
smoothTabView.setup(with: items, options: options, delegate: self)

/// For set corner radius to selected view
///
/// - rounded: for calculating rounded view
/// - fixed: fixed corner radius with corner option
public enum CornerRadius {
	case rounded
	case fixed(corner: CGFloat)
}

public struct SmoothTabOptions {

	/// Tabs parent view options
	public var backgroundColor: UIColor
	public var imageContentMode: UIViewContentMode
	public var itemsMargin: CGFloat
	public var shadow: SmoothTabShadowOptions?
    public var align: ContentPreferredAlign

	/// Selected View Options
	public var titleFont: UIFont
	public var titleColor: UIColor
	public var cornerRadius: CornerRadius
	public var borderWidth: CGFloat
	public var borderColor: UIColor
	public var innerPadding: CGFloat
	public var imageTitleMargin: CGFloat

}

public struct SmoothTabShadowOptions {

	public var color: UIColor
	public var offset: CGSize
	public var opacity: Float
	public var radius: CGFloat

}

@objc public protocol SmoothTabDelegate: class {
    func smootItemSelected(at index: Int)
}