--- /dev/null
+//
+// SMSegmentView.swift
+//
+// Created by Si MA on 03/01/2015.
+// Copyright (c) 2015 Si Ma. All rights reserved.
+//
+
+import UIKit
+
+/*
+ Keys for segment properties
+*/
+
+// This is mainly for the top/bottom margin of the imageView
+let keyContentVerticalMargin = "VerticalMargin"
+
+// The colour when the segment is under selected/unselected
+let keySegmentOnSelectionColour = "OnSelectionBackgroundColour"
+let keySegmentOffSelectionColour = "OffSelectionBackgroundColour"
+
+// The colour of the text in the segment for the segment is under selected/unselected
+let keySegmentOnSelectionTextColour = "OnSelectionTextColour"
+let keySegmentOffSelectionTextColour = "OffSelectionTextColour"
+
+// The font of the text in the segment
+let keySegmentTitleFont = "TitleFont"
+
+
+enum SegmentOrganiseMode: Int {
+ case segmentOrganiseHorizontal = 0
+ case segmentOrganiseVertical
+}
+
+
+protocol SMSegmentViewDelegate: class {
+ func segmentView(_ segmentView: SMSegmentView, didSelectSegmentAtIndex index: Int)
+}
+
+class SMSegmentView: UIView, SMSegmentDelegate {
+ weak var delegate: SMSegmentViewDelegate?
+
+ var indexOfSelectedSegment = NSNotFound
+ var numberOfSegments = 0
+
+ var organiseMode: SegmentOrganiseMode = SegmentOrganiseMode.segmentOrganiseHorizontal {
+ didSet {
+ self.setNeedsDisplay()
+ }
+ }
+
+ var segmentVerticalMargin: CGFloat = 5.0 {
+ didSet {
+ for segment in self.segments {
+ segment.verticalMargin = self.segmentVerticalMargin
+ }
+ }
+ }
+
+ // Segment Separator
+ var separatorColour: UIColor = UIColor.lightGray {
+ didSet {
+ self.setNeedsDisplay()
+ }
+ }
+ var separatorWidth: CGFloat = 1.0 {
+ didSet {
+ for segment in self.segments {
+ segment.separatorWidth = self.separatorWidth
+ }
+ self.updateFrameForSegments()
+ }
+ }
+
+ // Segment Colour
+ var segmentOnSelectionColour: UIColor = UIColor.darkGray {
+ didSet {
+ for segment in self.segments {
+ segment.onSelectionColour = self.segmentOnSelectionColour
+ }
+ }
+ }
+ var segmentOffSelectionColour: UIColor = UIColor.white {
+ didSet {
+ for segment in self.segments {
+ segment.offSelectionColour = self.segmentOffSelectionColour
+ }
+ }
+ }
+
+ // Segment Title Text Colour & Font
+ var segmentOnSelectionTextColour: UIColor = UIColor.white {
+ didSet {
+ for segment in self.segments {
+ segment.onSelectionTextColour = self.segmentOnSelectionTextColour
+ }
+ }
+ }
+ var segmentOffSelectionTextColour: UIColor = UIColor.darkGray {
+ didSet {
+ for segment in self.segments {
+ segment.offSelectionTextColour = self.segmentOffSelectionTextColour
+ }
+ }
+ }
+ var segmentTitleFont: UIFont = UIFont.systemFont(ofSize: 17.0) {
+ didSet {
+ for segment in self.segments {
+ segment.titleFont = self.segmentTitleFont
+ }
+ }
+ }
+
+ override var frame: CGRect {
+ didSet {
+ self.updateFrameForSegments()
+ }
+ }
+
+ var segments: Array<SMSegment> = Array()
+
+ required init?(coder aDecoder: NSCoder) {
+ fatalError("init(coder:) has not been implemented")
+ }
+
+ override init(frame: CGRect) {
+ super.init(frame: frame)
+ self.backgroundColor = UIColor.clear
+ self.layer.masksToBounds = true
+ }
+
+ init(frame: CGRect, separatorColour: UIColor, separatorWidth: CGFloat, segmentProperties: Dictionary<String, AnyObject>?) {
+ self.separatorColour = separatorColour
+ self.separatorWidth = separatorWidth
+
+ if let margin = segmentProperties?[keyContentVerticalMargin] as? Float {
+ self.segmentVerticalMargin = CGFloat(margin)
+ }
+
+ if let onSelectionColour = segmentProperties?[keySegmentOnSelectionColour] as? UIColor {
+ self.segmentOnSelectionColour = onSelectionColour
+ }
+ else {
+ self.segmentOnSelectionColour = UIColor.darkGray
+ }
+
+ if let offSelectionColour = segmentProperties?[keySegmentOffSelectionColour] as? UIColor {
+ self.segmentOffSelectionColour = offSelectionColour
+ }
+ else {
+ self.segmentOffSelectionColour = UIColor.white
+ }
+
+ if let onSelectionTextColour = segmentProperties?[keySegmentOnSelectionTextColour] as? UIColor {
+ self.segmentOnSelectionTextColour = onSelectionTextColour
+ }
+ else {
+ self.segmentOnSelectionTextColour = UIColor.white
+ }
+
+ if let offSelectionTextColour = segmentProperties?[keySegmentOffSelectionTextColour] as? UIColor {
+ self.segmentOffSelectionTextColour = offSelectionTextColour
+ }
+ else {
+ self.segmentOffSelectionTextColour = UIColor.darkGray
+ }
+
+ if let titleFont = segmentProperties?[keySegmentTitleFont] as? UIFont {
+ self.segmentTitleFont = titleFont
+ }
+ else {
+ self.segmentTitleFont = UIFont.systemFont(ofSize: 17.0)
+ }
+
+ super.init(frame: frame)
+ self.backgroundColor = UIColor.clear
+ self.layer.masksToBounds = true
+ }
+
+ func addSegmentWithTitle(_ title: String?, onSelectionImage: UIImage?, offSelectionImage: UIImage?) {
+
+ let segment = SMSegment(
+ separatorWidth: self.separatorWidth,
+ verticalMargin: self.segmentVerticalMargin,
+ onSelectionColour: self.segmentOnSelectionColour,
+ offSelectionColour: self.segmentOffSelectionColour,
+ onSelectionTextColour: self.segmentOnSelectionTextColour,
+ offSelectionTextColour: self.segmentOffSelectionTextColour,
+ titleFont: self.segmentTitleFont
+ )
+ segment.index = self.segments.count
+ self.segments.append(segment)
+ self.updateFrameForSegments()
+
+ segment.delegate = self
+ segment.title = title
+ segment.onSelectionImage = onSelectionImage
+ segment.offSelectionImage = offSelectionImage
+
+ self.addSubview(segment)
+
+ self.numberOfSegments = self.segments.count
+ }
+
+ func updateFrameForSegments() {
+ if self.segments.count == 0 {
+ return
+ }
+
+ let count = self.segments.count
+ if count > 1 {
+ if self.organiseMode == SegmentOrganiseMode.segmentOrganiseHorizontal {
+ let segmentWidth = (self.frame.size.width - self.separatorWidth*CGFloat(count-1)) / CGFloat(count)
+ var originX: CGFloat = 0.0
+ for segment in self.segments {
+ segment.frame = CGRect(x: originX, y: 0.0, width: segmentWidth, height: self.frame.size.height)
+ originX += segmentWidth + self.separatorWidth
+ }
+ }
+ else {
+ let segmentHeight = (self.frame.size.height - self.separatorWidth*CGFloat(count-1)) / CGFloat(count)
+ var originY: CGFloat = 0.0
+ for segment in self.segments {
+ segment.frame = CGRect(x: 0.0, y: originY, width: self.frame.size.width, height: segmentHeight)
+ originY += segmentHeight + self.separatorWidth
+ }
+ }
+ }
+ else {
+ self.segments[0].frame = CGRect(x: 0.0, y: 0.0, width: self.frame.size.width, height: self.frame.size.height)
+ }
+
+ self.setNeedsDisplay()
+ }
+
+ // MARK: SMSegment Delegate
+ func selectSegment(_ segment: SMSegment) {
+ if self.indexOfSelectedSegment != NSNotFound {
+ let previousSelectedSegment = self.segments[self.indexOfSelectedSegment]
+ previousSelectedSegment.setSelected(false)
+ }
+ self.indexOfSelectedSegment = segment.index
+ segment.setSelected(true)
+ self.delegate?.segmentView(self, didSelectSegmentAtIndex: segment.index)
+ }
+
+ // MARK: Actions
+ func selectSegmentAtIndex(_ index: Int) {
+ assert(index >= 0 && index < self.segments.count, "Index at \(index) is out of bounds")
+ self.selectSegment(self.segments[index])
+ }
+
+ func deselectSegment() {
+ if self.indexOfSelectedSegment != NSNotFound {
+ let segment = self.segments[self.indexOfSelectedSegment]
+ segment.setSelected(false)
+ self.indexOfSelectedSegment = NSNotFound
+ }
+ }
+
+ // MARK: Drawing Segment Separators
+ override func draw(_ rect: CGRect) {
+ let context = UIGraphicsGetCurrentContext()
+ self.drawSeparatorWithContext(context!)
+ }
+
+ func drawSeparatorWithContext(_ context: CGContext) {
+ context.saveGState()
+
+ if self.segments.count > 1 {
+ let path = CGMutablePath()
+
+ if self.organiseMode == SegmentOrganiseMode.segmentOrganiseHorizontal {
+ var originX: CGFloat = self.segments[0].frame.size.width + self.separatorWidth/2.0
+ for index in 1..<self.segments.count {
+ path.move(to: CGPoint(x: originX, y: 0.0))
+ path.addLine(to: CGPoint(x: originX, y: frame.size.height))
+
+ originX += self.segments[index].frame.width + self.separatorWidth
+ }
+ }
+ else {
+ var originY: CGFloat = self.segments[0].frame.size.height + self.separatorWidth/2.0
+ for index in 1..<self.segments.count {
+ path.move(to: CGPoint(x: 0.0, y: originY))
+ path.addLine(to: CGPoint(x: frame.size.width, y: originY))
+
+ originY += self.segments[index].frame.height + self.separatorWidth
+ }
+ }
+
+ context.addPath(path)
+ context.setStrokeColor(self.separatorColour.cgColor)
+ context.setLineWidth(self.separatorWidth)
+ context.drawPath(using: CGPathDrawingMode.stroke)
+ }
+
+ context.restoreGState()
+ }
+}
fnp / wl-app.git / blobdiff