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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,133 @@ | ||
| // | ||
| // UIPitView.swift | ||
| // LimberTabbar | ||
| // | ||
| // Created by Afshin Hoseini on 4/7/19. | ||
| // Copyright © 2019 Afshin Hoseini. All rights reserved. | ||
| // | ||
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| import Foundation | ||
| import UIKit | ||
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| @IBDesignable | ||
| public class AHPitView : UIView { | ||
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| //MARK:- Properties | ||
| var borderLayer = CAShapeLayer() | ||
| var guideRectsLayer = CAShapeLayer() | ||
| let pitDepth = CGFloat(40) | ||
| let maxDepth = CGFloat(40) | ||
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| @IBInspectable | ||
| public var pitPositionScale = CGFloat(0) { | ||
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| didSet { | ||
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| renderBorder() | ||
| } | ||
| } | ||
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| @IBInspectable | ||
| public var pitDepthScale = CGFloat(0) { | ||
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| didSet { | ||
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| renderBorder() | ||
| } | ||
| } | ||
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| @IBInspectable | ||
| public var showRects = true { | ||
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| didSet { | ||
| renderBorder() | ||
| } | ||
| } | ||
|
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| //MARK:- Initializers | ||
| public override init(frame: CGRect) { | ||
| super.init(frame: frame) | ||
| commonInit() | ||
| } | ||
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| public required init?(coder aDecoder: NSCoder) { | ||
| super.init(coder: aDecoder) | ||
| commonInit() | ||
| } | ||
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| func commonInit() { | ||
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| //Initializes border and guide rects layers | ||
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| borderLayer.bounds = bounds | ||
| borderLayer.fillColor = UIColor.red.cgColor | ||
| borderLayer.strokeColor = UIColor.red.cgColor | ||
| borderLayer.position = CGPoint(x: 0, y: 0) | ||
| borderLayer.anchorPoint = CGPoint(x: 0, y: 0) | ||
| borderLayer.lineJoin = .round | ||
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| borderLayer.shadowColor = UIColor.black.cgColor | ||
| borderLayer.shadowOffset = CGSize(width: 0, height: -2) | ||
| borderLayer.shadowRadius = 1 | ||
| borderLayer.shadowOpacity = 0.3 | ||
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| guideRectsLayer.fillColor = nil | ||
| guideRectsLayer.strokeColor = UIColor.cyan.cgColor | ||
| guideRectsLayer.position = CGPoint(x: 0, y: 0) | ||
| guideRectsLayer.bounds = bounds | ||
| guideRectsLayer.anchorPoint = CGPoint(x: 0, y: 0) | ||
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| layer.addSublayer(borderLayer) | ||
| layer.addSublayer(guideRectsLayer) | ||
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| renderBorder() | ||
| self.backgroundColor = nil | ||
| } | ||
|
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| //MARK:- Functions | ||
| public override func prepareForInterfaceBuilder() { | ||
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| pitPositionScale = CGFloat(0.5) | ||
| pitDepthScale = CGFloat(1) | ||
| } | ||
|
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| /** | ||
| * Renders the border of view including the hole | ||
| */ | ||
| func renderBorder() { | ||
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| //Initial calculations | ||
| let pitWidth = CGMutablePath.calculatePitWith(maxPitDepth: pitDepth) | ||
| let y = CGFloat(0) | ||
| let possibleDiggingWidth = bounds.width - pitWidth | ||
| let holeStartingPointX = CGFloat(possibleDiggingWidth * pitPositionScale) | ||
|
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| //Creates the hole | ||
| let borderPath = CGMutablePath() | ||
| borderPath.move(to: CGPoint.zero) | ||
| borderPath.addLine(to: CGPoint(x: holeStartingPointX, y: y)) | ||
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| let guideRects = borderPath.addPit(toPath: borderPath, startingPointX: holeStartingPointX, y: y, depth: pitDepth, scale: pitDepthScale).guideRects | ||
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| borderPath.addLine(to: CGPoint(x: bounds.width, y: 0)) | ||
| borderPath.addLine(to: CGPoint(x: bounds.width, y: bounds.height)) | ||
| borderPath.addLine(to: CGPoint(x: 0, y: bounds.height)) | ||
| borderPath.addLine(to: CGPoint(x: 0, y: 0)) | ||
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| borderLayer.path = borderPath | ||
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| //Rects layer | ||
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| if (showRects) { | ||
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| let rectPath = CGMutablePath() | ||
| rectPath.addRects(guideRects) | ||
| guideRectsLayer.path = rectPath | ||
| } | ||
| else { | ||
| guideRectsLayer.path = nil | ||
| } | ||
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| } | ||
| } |
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63 changes: 63 additions & 0 deletions
63
LimberTabbar/LimberTabbar/Extensions/CGMutablePath+pit.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| // | ||
| // CGMutablePath+pit.swift | ||
| // LimberTabbar | ||
| // | ||
| // Created by Afshin Hoseini on 4/7/19. | ||
| // Copyright © 2019 Afshin Hoseini. All rights reserved. | ||
| // | ||
|
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| import Foundation | ||
| import UIKit | ||
|
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| extension CGMutablePath { | ||
|
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| class func calculatePitWith(maxPitDepth: CGFloat) -> CGFloat { | ||
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| return maxPitDepth * 2.25 | ||
| } | ||
|
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| /** | ||
| Draws the pit's path from given starting point. | ||
| In order to simplify the code, the scale parameter has been used once for the middle rect's height calculation. The other discussed parameters have bound to middle rect's height. | ||
| **Returns** a tuple including guide rects and the end point. | ||
| */ | ||
| @discardableResult | ||
| public func addPit(toPath path: CGMutablePath, startingPointX : CGFloat, y: CGFloat, depth: CGFloat = 40, scale: CGFloat = 1) -> (guideRects: [CGRect], endPoint : CGPoint) { | ||
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| let pitWidth = CGMutablePath.calculatePitWith(maxPitDepth: depth) // Including the pit's domains | ||
| let endPoint = CGPoint(x: startingPointX + pitWidth, y: y) | ||
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| let centerRectWidth = depth | ||
| let centerRectHeight = depth * scale | ||
| let smallRectsWidth = centerRectWidth / 2 | ||
| let smallRectsHeight = centerRectHeight / 2 | ||
| let pitCenterBottomPoint = CGPoint(x: startingPointX + (pitWidth / 2), y: centerRectHeight) | ||
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| let leftRect = CGRect(x: startingPointX, y: y, width: smallRectsWidth, height: smallRectsHeight) | ||
| let centerRect = CGRect(x: leftRect.origin.x + leftRect.width, y: y, width: centerRectWidth, height: centerRectHeight) | ||
| let rightRect = CGRect(x: centerRect.origin.x + centerRect.width, y: y, width: smallRectsWidth, height: smallRectsHeight) | ||
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| //Curves' control points calculations. | ||
| //Right Curve's Top Control Point | ||
| let RCTCP = CGPoint(x: endPoint.x - (abs(rightRect.height) * 1.25), y: y) | ||
| //Right Curve's Bottom Control Point | ||
| let RCBCP = CGPoint(x: pitCenterBottomPoint.x + abs(centerRectHeight), y: centerRectHeight) | ||
| //Left Curve's Top Control Point | ||
| let LCTCP = CGPoint(x: startingPointX + (abs(leftRect.height) * 1.25), y: y) | ||
| //Left Curve's Bottom Control Point | ||
| let LCBCP = CGPoint(x: pitCenterBottomPoint.x - abs(centerRectHeight), y: centerRectHeight) | ||
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| //Addes curves to the given path. | ||
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| path.addCurve(to: pitCenterBottomPoint, control1: LCTCP, control2: LCBCP) | ||
| path.addCurve(to: endPoint, control1: RCBCP, control2: RCTCP) | ||
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| return([leftRect, centerRect, rightRect], endPoint) | ||
| } | ||
| } |
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