/*

     File: ViewController.m

 Abstract: The view controller creates a few blub views which host the custom layer subclass.

  Version: 1.0

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 */

#import "ViewController.h"

#import "BulbView.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad

{

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

    self.view.backgroundColor = [UIColor yellowColor];

    // Load the bulb image.

    UIImage* bulb = [UIImage imageNamed:@"bulb.png"];

    // Base the size of the bulb views on the screen size.

    CGFloat screenWidth = [UIScreen mainScreen].bounds.size.width;

    CGFloat screenHeight = [UIScreen mainScreen].bounds.size.height;

    CGFloat bulbHeight = screenHeight / 2.1;

    // Maintain image proportions by basing width on the width-to-height ratio.

    CGFloat widthHeightRatio = bulb.size.width / bulb.size.height;

    NSLog(@"widthHeightRatio: %f", widthHeightRatio );

    CGFloat bulbWidth = ( bulbHeight * widthHeightRatio ) * 1.5; // times 1.5 to fatten up the bulb for added visual effect.

    // Define our view hierarchy.

    BulbView* view;

    CGRect startingFrame = CGRectMake( 0, 0, bulbWidth, bulbHeight );

    view = [[BulbView alloc] initWithFrame:startingFrame];

    [view setColor:[UIColor redColor]];

    view.center = CGPointMake( .25 * screenWidth, .20 * screenHeight );

    [self.view addSubview:view];

    view = [[BulbView alloc] initWithFrame:startingFrame];

    [view setColor:[UIColor greenColor]];

    view.center = CGPointMake( .5 * screenWidth, .5 * screenHeight );

    [self.view addSubview:view];

    view = [[BulbView alloc] initWithFrame:startingFrame];

    [view setColor:[UIColor blueColor]];

    view.center = CGPointMake( .75 * screenWidth, .80 * screenHeight );

    [self.view addSubview:view];

    // Display an alert view that explains usability.

    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Tap blubs to animate." message:nil delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];

    // optional - add more buttons:

    //[alert addButtonWithTitle:@"Ok"];

    [alert show];

}

- (void)didReceiveMemoryWarning

{

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

@end