Simple UIView to draw lines and squares

MyUIV.swift

import Foundation
import UIKit


class MyUIV:UIView {
    //ddrawRect:(CGRect)rect
    
    override func drawRect(rect: CGRect) {
        
        
        
        var ctx = UIGraphicsGetCurrentContext()
        
        CGContextClearRect(ctx, rect);
        
        let parentViewBounds = self.bounds
        let parentViewWidth = CGRectGetWidth(parentViewBounds)
        let parentViewHeight = CGRectGetHeight(parentViewBounds)
        println ("w,h = \(parentViewWidth),\(parentViewHeight) ")
        
        // CGContextClearRect(ctx, rect);
        
        CGContextSetRGBFillColor(ctx, 0.0, 1.0, 0.0, 1); // green
        CGContextFillRect(ctx, CGRectMake(0, 0, parentViewWidth, parentViewHeight));
        
        //   println("in drawRect, fractionalHeight = \(fractionalHeight)")
        
        var h: CGFloat = 200 // fractionalHeight*parentViewHeight
        
       // CGContextSetRGBFillColor(ctx, 1.0, 0.0, 0.0, 1); // red
        CGContextFillRect(ctx, CGRectMake(0, 0, parentViewWidth, h))
        
        CGContextSetRGBFillColor(ctx, 1.0, 1.0, 0.0, 1); //yellow
        CGContextFillRect(ctx, CGRectMake(0, 0, 200, 200))
        
        println("in drawRect, h = \(h)")
        

        // This works nice
        CGContextSetRGBStrokeColor(ctx, 1.0, 0.0, 0.0, 1.0); // red
        CGContextMoveToPoint(ctx, 200, 200);
        CGContextAddLineToPoint(ctx, 0, 0);
        CGContextAddLineToPoint(ctx, 50, 500);
        CGContextAddCurveToPoint(ctx, 0.0, 100, 200, 3, 300, 233)
        CGContextStrokePath(ctx);


    }
    
    
    
    
}