added iOS source code

[wl-app.git] / iOS / Pods / FolioReaderKit / Vendor / SMSegmentView / SMSegment.swift

diff --git a/iOS/Pods/FolioReaderKit/Vendor/SMSegmentView/SMSegment.swift b/iOS/Pods/FolioReaderKit/Vendor/SMSegmentView/SMSegment.swift
new file mode 100755 (executable)
index 0000000..e153581
--- /dev/null
+++ b/iOS/Pods/FolioReaderKit/Vendor/SMSegmentView/SMSegment.swift
@@ -0,0 +1,221 @@
+//
+//  SMSegment.swift
+//
+//  Created by Si MA on 03/01/2015.
+//  Copyright (c) 2015 Si Ma. All rights reserved.
+//
+
+import UIKit
+
+protocol SMSegmentDelegate: class {
+    func selectSegment(_ segment: SMSegment)
+}
+
+class SMSegment: UIView {
+    
+    weak var delegate: SMSegmentDelegate?
+    
+    fileprivate(set) var isSelected: Bool = false
+    fileprivate var shouldResponse: Bool!
+    var index: Int = 0
+    var verticalMargin: CGFloat = 5.0 {
+        didSet {
+            self.resetContentFrame()
+        }
+    }
+    
+    var separatorWidth: CGFloat
+    
+    // Segment Colour
+    var onSelectionColour: UIColor = UIColor.darkGray {
+        didSet {
+            if self.isSelected == true {
+                self.backgroundColor = self.onSelectionColour
+            }
+        }
+    }
+    var offSelectionColour: UIColor = UIColor.white {
+        didSet {
+            if self.isSelected == false {
+                self.backgroundColor = self.offSelectionColour
+            }
+        }
+    }
+    fileprivate var willOnSelectionColour: UIColor! {
+        get {
+            var hue: CGFloat = 0.0
+            var saturation: CGFloat = 0.0
+            var brightness: CGFloat = 0.0
+            var alpha: CGFloat = 0.0
+            self.onSelectionColour.getHue(&hue, saturation: &saturation, brightness: &brightness, alpha: &alpha)
+            return UIColor(hue: hue, saturation: saturation*0.5, brightness: min(brightness*1.5, 1.0), alpha: alpha)
+        }
+    }
+    
+    // Segment Title Text & Colour & Font
+    var title: String? {
+        didSet {
+            self.label.text = self.title
+            
+            if let titleText = self.label.text as NSString? {
+                self.labelWidth = titleText.boundingRect(with: CGSize(width: self.frame.size.width, height: self.frame.size.height), options:NSStringDrawingOptions.usesLineFragmentOrigin , attributes: [NSAttributedStringKey.font: self.label.font], context: nil).size.width
+            }
+            else {
+                self.labelWidth = 0.0
+            }
+            
+            self.resetContentFrame()
+        }
+    }
+    var onSelectionTextColour: UIColor = UIColor.white {
+        didSet {
+            if self.isSelected == true {
+                self.label.textColor = self.onSelectionTextColour
+            }
+        }
+    }
+    var offSelectionTextColour: UIColor = UIColor.darkGray {
+        didSet {
+            if self.isSelected == false {
+                self.label.textColor = self.offSelectionTextColour
+            }
+        }
+    }
+    var titleFont: UIFont = UIFont.systemFont(ofSize: 17.0) {
+        didSet {
+            self.label.font = self.titleFont
+            
+            if let titleText = self.label.text as NSString? {
+                self.labelWidth = titleText.boundingRect(with: CGSize(width: self.frame.size.width + 1.0, height: self.frame.size.height), options:NSStringDrawingOptions.usesLineFragmentOrigin , attributes: [NSAttributedStringKey.font: self.label.font], context: nil).size.width
+            }
+            else {
+                self.labelWidth = 0.0
+            }
+            
+            self.resetContentFrame()
+        }
+    }
+    
+    // Segment Image
+    var onSelectionImage: UIImage? {
+        didSet {
+            if self.onSelectionImage != nil {
+                self.resetContentFrame()
+            }
+            if self.isSelected == true {
+                self.imageView.image = self.onSelectionImage
+                self.imageView.contentMode = .center
+            }
+        }
+    }
+    var offSelectionImage: UIImage? {
+        didSet {
+            if self.offSelectionImage != nil {
+                self.resetContentFrame()
+            }
+            if self.isSelected == false {
+                self.imageView.image = self.offSelectionImage
+                self.imageView.contentMode = .center
+            }
+        }
+    }
+    
+    // UI Elements
+    override var frame: CGRect {
+        didSet {
+            self.resetContentFrame()
+        }
+    }
+    fileprivate var imageView: UIImageView = UIImageView()
+    fileprivate var label: UILabel = UILabel()
+    fileprivate var labelWidth: CGFloat = 0.0
+    
+    required init?(coder aDecoder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+    
+    init(separatorWidth: CGFloat, verticalMargin: CGFloat, onSelectionColour: UIColor, offSelectionColour: UIColor, onSelectionTextColour: UIColor, offSelectionTextColour: UIColor, titleFont: UIFont) {
+        
+        self.separatorWidth = separatorWidth
+        self.verticalMargin = verticalMargin
+        self.onSelectionColour = onSelectionColour
+        self.offSelectionColour = offSelectionColour
+        self.onSelectionTextColour = onSelectionTextColour
+        self.offSelectionTextColour = offSelectionTextColour
+        self.titleFont = titleFont
+        
+        super.init(frame: CGRect.zero)
+        self.setupUIElements()
+    }
+    
+    func setupUIElements() {
+        
+        self.backgroundColor = self.offSelectionColour
+        
+        self.imageView.contentMode = UIViewContentMode.scaleAspectFit
+        self.addSubview(self.imageView)
+        
+        self.label.textAlignment = NSTextAlignment.center
+        self.label.font = self.titleFont
+        self.label.textColor = self.offSelectionTextColour
+        self.addSubview(self.label)
+    }
+    
+    // MARK: Selections
+    func setSelected(_ selected: Bool) {
+        if selected == true {
+            self.isSelected = true
+            self.backgroundColor = self.onSelectionColour
+            self.label.textColor = self.onSelectionTextColour
+            self.imageView.image = self.onSelectionImage
+        }
+        else {
+            self.isSelected = false
+            self.backgroundColor = self.offSelectionColour
+            self.label.textColor = self.offSelectionTextColour
+            self.imageView.image = self.offSelectionImage
+        }
+    }
+    
+    // MARK: Update Frame
+    fileprivate func resetContentFrame() {
+        
+        var distanceBetween: CGFloat = 0.0
+        var imageViewFrame = CGRect(x: 0.0, y: self.verticalMargin, width: 0.0, height: self.frame.size.height - self.verticalMargin*2)
+        
+        if self.onSelectionImage != nil || self.offSelectionImage != nil {
+            // Set imageView as a square
+            imageViewFrame.size.width = self.frame.size.height - self.verticalMargin*2
+            distanceBetween = 5.0
+        }
+        
+        // If there's no text, align imageView centred
+        // Else align text centred
+        if self.labelWidth == 0.0 {
+            imageViewFrame.origin.x = max((self.frame.size.width - imageViewFrame.size.width) / 2.0, 0.0)
+        }
+        else {
+            imageViewFrame.origin.x = max((self.frame.size.width - imageViewFrame.size.width - self.labelWidth) / 2.0 - distanceBetween, 0.0)
+        }
+        
+        self.imageView.frame = imageViewFrame
+        
+        self.label.frame = CGRect(x: imageViewFrame.origin.x + imageViewFrame.size.width + distanceBetween, y: self.verticalMargin, width: self.labelWidth, height: self.frame.size.height - self.verticalMargin * 2)
+    }
+    
+    // MARK: Handle touch
+    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
+        super.touchesBegan(touches, with: event)
+        
+        if self.isSelected == false {
+            self.shouldResponse = true
+            self.backgroundColor = self.willOnSelectionColour
+        }
+    }
+    
+    override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
+        super.touchesEnded(touches, with: event)
+        
+        self.delegate?.selectSegment(self)
+    }
+}