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[Plugboard] Drag lines

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This commit is contained in:
Eryn Wells 2015-07-27 09:45:49 -07:00
parent 52cde95097
commit 2f16f17cb4
1 changed files with 34 additions and 5 deletions
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39
Plugboard/PlugboardViewController.swift
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@ -36,15 +36,32 @@ class PlugboardViewController: UICollectionViewController, UICollectionViewDeleg
@IBAction func connectPlugsPanGesture(recognizer: UIPanGestureRecognizer) { @IBAction func connectPlugsPanGesture(recognizer: UIPanGestureRecognizer) {
switch recognizer.state { switch recognizer.state {
case .Began: case .Began:
print("drag began")
let plugView = PlugLineView(frame: view.bounds) let plugView = PlugLineView(frame: view.bounds)
let start = recognizer.locationInView(self.view)
let translation = recognizer.translationInView(self.view)
plugView.startPoint = start
plugView.endPoint = CGPoint(x: start.x + translation.x, y: start.y + translation.y)
view.addSubview(plugView) view.addSubview(plugView)
plugViews.append(plugView) plugViews.append(plugView)
case .Changed: case .Changed:
break print("drag changed")
if let plugView = plugViews.last {
if let start = plugView.startPoint {
let translation = recognizer.translationInView(self.view)
plugView.endPoint = CGPoint(x: start.x + translation.x, y: start.y + translation.y)
}
}
case .Ended: case .Ended:
break print("drag ended")
if let plugView = plugViews.last {
if let start = plugView.startPoint {
let translation = recognizer.translationInView(self.view)
plugView.endPoint = CGPoint(x: start.x + translation.x, y: start.y + translation.y)
}
}
case .Failed: case .Failed:
break print("drag failed")
case .Cancelled: case .Cancelled:
print("drag cancelled") print("drag cancelled")
case .Possible: case .Possible:
@ -119,8 +136,16 @@ class PlugCollectionViewCell: UICollectionViewCell {
class PlugLineView: UIView { class PlugLineView: UIView {
var startPoint: CGPoint? var startPoint: CGPoint? {
var endPoint: CGPoint? didSet {
setNeedsDisplay()
}
}
var endPoint: CGPoint? {
didSet {
setNeedsDisplay()
}
}
override init(frame: CGRect) { override init(frame: CGRect) {
super.init(frame: frame) super.init(frame: frame)
@ -135,6 +160,7 @@ class PlugLineView: UIView {
private func initCommon() { private func initCommon() {
opaque = false opaque = false
backgroundColor = UIColor.clearColor() backgroundColor = UIColor.clearColor()
userInteractionEnabled = false
} }
override func drawRect(rect: CGRect) { override func drawRect(rect: CGRect) {
@ -142,6 +168,9 @@ class PlugLineView: UIView {
let path = UIBezierPath() let path = UIBezierPath()
path.moveToPoint(startPoint) path.moveToPoint(startPoint)
path.addLineToPoint(endPoint) path.addLineToPoint(endPoint)
UIColor.blackColor()
path.stroke()
} }
} }
} }