Rectangles & Ellipses

C4WorkSpace.m

//
//  C4WorkSpace.m
//  Examples
//
//  Created by Travis Kirton
//

#import "C4WorkSpace.h"

@implementation C4WorkSpace

-(void)setup {
    C4Shape *rectangle, *square, *circle, *ellipse;
    
    //Create a rectangle
    rectangle = [C4Shape rect:CGRectMake(0, 0, 200, 100)];
    
    //Create a square (same w & h)
    square = [C4Shape rect:CGRectMake(0, 0, 100, 100)];

    //Create an ellipse
    ellipse = [C4Shape ellipse:CGRectMake(0, 0, 200, 100)]; // same dimensions as rectangle
    
    //Create a circle (same w & h)
    circle = [C4Shape ellipse:CGRectMake(0, 0, 100, 100)]; // same dimensions as square
    
    //Figure out the vertical whitespace (i.e. the space between shapes and the edges of the canvas)
    CGFloat whiteSpace = self.canvas.height - 4* rectangle.height;
    
    whiteSpace = whiteSpace/5; // because there are 5 gaps
    
    //center all the shapes to the canvas
    CGPoint center;
    center.x = self.canvas.center.x;

    //set the y position for the rectangle
    center.y = whiteSpace + rectangle.height/2;
    rectangle.center = center;
    
    //set the y position for the square
    center.y = center.y + whiteSpace + square.height;
    square.center = center;
    
    //set the y position for the ellipse
    center.y = center.y + whiteSpace + ellipse.height;
    ellipse.center = center;
    
    //set the y position for the circle
    center.y = center.y + whiteSpace + circle.height;
    circle.center = center;
    
    //add all the objects to the canvas
    [self.canvas addShape:rectangle];
    [self.canvas addShape:square];
    [self.canvas addShape:ellipse];
    [self.canvas addShape:circle];
}

@end