Resize - Rotate - Move View or image view in swift

Resize - Rotate - Move View or image view in swift .

import UIKit

class ViewController: UIViewController {

    

    var frameImageView:UIView!

    var prevPoint:CGPoint!

    var resizeView:UIView!

    var rotateView:UIView!

    var deltaAngle:Float!

    var startTransform:CGAffineTransform!

    

    

    override func viewDidLoad() {

            super.viewDidLoad()

        

        frameImageView = UIView(frame: CGRectMake(100,100,100,100));

        frameImageView.backgroundColor = UIColor.yellowColor();

        self.view.addSubview(frameImageView)

        

        let panMoveGesture:UIPanGestureRecognizer = UIPanGestureRecognizer(target: self, action: #selector(ViewController.moveFrame(_:)))

        frameImageView.addGestureRecognizer(panMoveGesture)

        

        

        resizeView = UIView(frame: CGRectMake(frameImageView.frame.size.width-30, frameImageView.frame.size.height-30,30,30));

        resizeView.backgroundColor = UIColor.redColor();

        self.frameImageView.addSubview(resizeView)

        

        let panResizeGesture:UIPanGestureRecognizer = UIPanGestureRecognizer(target: self, action: #selector(ViewController.resizeTranslate(_:)))

        resizeView.addGestureRecognizer(panResizeGesture)

       

        

        

        rotateView = UIView(frame: CGRectMake(0,70,30,30));

        rotateView.backgroundColor = UIColor.blueColor();

        self.frameImageView.addSubview(rotateView)

        

        let panRotateGesture:UIPanGestureRecognizer = UIPanGestureRecognizer(target: self, action: #selector(ViewController.rotateViewPanGesture(_:)))

        rotateView.addGestureRecognizer(panRotateGesture)

        

        

    }

    

    func moveFrame(recognizer:UIPanGestureRecognizer){

        if (recognizer.state == UIGestureRecognizerState.Began)

        {

            prevPoint = recognizer.locationInView(frameImageView.superview)

            frameImageView.setNeedsDisplay()

        }

        else if(recognizer.state == UIGestureRecognizerState.Changed){

            

            let point = recognizer.locationInView(frameImageView.superview)

            

            frameImageView.center = point

            

           

            frameImageView.setNeedsDisplay()

            

        }

        else if(recognizer.state == UIGestureRecognizerState.Ended){

            prevPoint = recognizer.locationInView(frameImageView.superview)

            frameImageView.setNeedsDisplay()

        }

    }

    

    func resizeTranslate(recognizer:UIPanGestureRecognizer){

        

        if (recognizer.state == UIGestureRecognizerState.Began)

        {

            prevPoint = recognizer.locationInView(frameImageView.superview)

            frameImageView.setNeedsDisplay()

        }

        else if(recognizer.state == UIGestureRecognizerState.Changed){

            

            let point = recognizer.locationInView(frameImageView.superview)

            var wChange:CGFloat = 0.0; var hChange:CGFloat = 0.0;

            

            

            wChange = (point.x - prevPoint.x); //Slow down increment

            hChange = (point.y - prevPoint.y); //Slow down increment

            

            

            frameImageView.bounds = CGRectMake(frameImageView.bounds.origin.x, frameImageView.bounds.origin.y, frameImageView.bounds.size.width + (wChange), frameImageView.bounds.size.height + (hChange));

            

            resizeView.frame = CGRectMake(frameImageView.bounds.size.width-30, frameImageView.bounds.size.height-30, 30, 30);

            rotateView.frame = CGRectMake(0, frameImageView.bounds.size.height-30, 30, 30);

            

            prevPoint = recognizer.locationInView(frameImageView.superview)

            frameImageView.setNeedsDisplay()

        }

        else if(recognizer.state == UIGestureRecognizerState.Ended){

            prevPoint = recognizer.locationInView(frameImageView.superview)

            frameImageView.setNeedsDisplay()

        }

        

    }

    func rotateViewPanGesture(recognizer:UIPanGestureRecognizer){

        

        if (recognizer.state == UIGestureRecognizerState.Began)

        {

            let point:CGPoint! = recognizer.locationInView(frameImageView.superview)

            deltaAngle = Float(atan2( point.y  - frameImageView.center.y, point.x - frameImageView.center.x));

            startTransform = frameImageView.transform;

        }

        else if(recognizer.state == UIGestureRecognizerState.Changed){

            let point:CGPoint! = recognizer.locationInView(frameImageView.superview)

            let ang:Float = Float(atan2( point.y  - frameImageView.center.y, point.x - frameImageView.center.x));

            let angleDiff:Float = deltaAngle - ang;

            frameImageView.transform = CGAffineTransformMakeRotation(CGFloat(-angleDiff));

            frameImageView.setNeedsDisplay()

            

        }

        else if(recognizer.state == UIGestureRecognizerState.Ended){

            

            let point:CGPoint! = recognizer.locationInView(frameImageView.superview)

          

            deltaAngle = Float(atan2( point.y  - frameImageView.center.y, point.x - frameImageView.center.x));

            startTransform = frameImageView.transform;

            frameImageView.setNeedsDisplay()

        }

    }

    

}