Quartz Outer shadow (playground)

QuartzOuterShadow.swift

import Cocoa
import XCPlayground
import XCTest


class FlippedView:NSView {//Organizes your view from top to bottom
    override var flipped:Bool {
        get {
            return true
        }
    }
}
class Container:FlippedView{
    var color:NSColor = NSColor.blueColor()
    
    override var wantsDefaultClipping:Bool{return false}//avoids clipping the view
    override var wantsUpdateLayer:Bool {return true}
    init(_ width:Int = 400, _ height:Int = 400, _ color:NSColor = NSColor.blueColor() ) {
        Swift.print("Container.init()")
        self.color = color
        let frame = NSRect(x: 0, y: 0, width: width, height: height)
        super.init(frame: frame)
        self.wantsLayer = false
    }
    override func drawRect(dirtyRect: NSRect) {
        //Swift.print("drawRect()")
        let nsctx:NSGraphicsContext/**/ = NSGraphicsContext.currentContext()!
        let context/**/  = nsctx.CGContext//was graphicsPort
     
        var path:CGMutablePathRef  = CGPathCreateMutable();
        let rectangle:CGRect = CGRectMake(20.0, 20.0,200.0, 200.0);
        path = CGPathCreateWithRoundedRect(rectangle, 20, 20, nil) as! CGMutablePathRef
        /* Add the rectangle to the path */
        //CGPathAddRect(path,nil, rectangle);
        CGContextAddPath(context,path)
        CGContextSaveGState(context)
        /*offset,blur and color*/
        
        


        
        CGContextSetShadowWithColor(context, CGSizeMake(14, -14), 17.0, NSColor.grayColor().CGColor);//offset,bl
        CGContextSetFillColorWithColor(context,NSColor.greenColor().CGColor)
        CGContextDrawPath(context, CGPathDrawingMode.Fill)//FillStroke
        
        CGContextRestoreGState(context);
        /*add the stroke ontop*/
        CGContextAddPath(context,path)
        CGContextSetStrokeColorWithColor(context, NSColor.redColor().CGColor)
        CGContextSetLineWidth(context, 15.0)
        CGContextDrawPath(context, CGPathDrawingMode.Stroke)//FillStroke
    }
    /**
     * Required by super class
     */
    required init?(coder: NSCoder) {fatalError("init(coder:) has not been implemented")}
}


let container = Container()

XCPlaygroundPage.currentPage.liveView = container

Example: