//
//  ViewController.m
//  bug
//
//  Created by on 2/6/13.
//  Copyright (c) 2013 . All rights reserved.
//

#import "ViewController.h"
static UIScrollView * scrollView;
static UIImageView * imageView;
static int AllWidth = 4000;
static int AllHeight = 3000;
@interface ViewController ()


@end


@implementation ViewController

-(void) writeDebugInfo
{
    NSLog(@"ImageX: %f, ImageY: %f; ImageW: %f; ImageH: %f",imageView.frame.origin.x,imageView.frame.origin.y,imageView.frame.size.width,imageView.frame.size.height);
    NSLog(@"ImageCenterX: %f, ImageCenterY: %f",imageView.center.x
          ,imageView.center.y);
    NSLog(@"ScrollW: %f, ScrollH: %f",scrollView.frame.size.width,scrollView.frame.size.height);

    NSLog(@"ScrollContX: %f; ScrollContentY: %f, ScrollContentW: %f; ScrollContentH: %f",scrollView.contentOffset.x, scrollView.contentOffset.y, scrollView.contentSize.width,scrollView.contentSize.height);
    NSLog(@"ScrollZoomScale: %f",scrollView.zoomScale);

    CGRect tmpRect = [scrollView convertRect:scrollView.bounds fromView:nil];
    NSLog(@"SViewIngX: %f; SViewIngY: %f, SViewIngW: %f; SViewIngH: %f",tmpRect.origin.x, tmpRect.origin.y, tmpRect.size.width,tmpRect.size.height);

    tmpRect = [scrollView convertRect:scrollView.bounds fromView:nil];
    NSLog(@"SViewIngX: %f; SViewIngY: %f, SViewIngW: %f; SViewIngH: %f",tmpRect.origin.x, tmpRect.origin.y, tmpRect.size.width,tmpRect.size.height);
}
- (void)viewDidLoad
{
    [super viewDidLoad];
    scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 320, 460)];
    imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, AllWidth, AllHeight)];
    [scrollView addSubview:imageView];
    scrollView.delegate=self;
    scrollView.contentSize = CGSizeMake(AllWidth, AllHeight);

    scrollView.scrollEnabled=TRUE;
    scrollView.contentOffset=CGPointZero;
    scrollView.minimumZoomScale=0.05;
    scrollView.maximumZoomScale = 2; // = 2 ^ 5
    scrollView.zoomScale = (320.0-1)/AllWidth;
    UITapGestureRecognizer *doubleFingerTap =
    [[UITapGestureRecognizer alloc] initWithTarget:self
                                            action:@selector(handleDoubleTap:)];
    scrollView.backgroundColor = [UIColor blackColor];
    imageView.backgroundColor = [UIColor greenColor] ;
    doubleFingerTap.numberOfTapsRequired = 2;
    [self.view addSubview:scrollView];
    [self.view addGestureRecognizer:doubleFingerTap];


    // Do any additional setup after loading the view, typically from a nib.
}
-(UIView *) viewForZoomingInScrollView: (UIScrollView *) sender
{
    return imageView;
}
- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

- (void)handleDoubleTap:(UITapGestureRecognizer *)sender
{
    if (sender.state == UIGestureRecognizerStateRecognized) {
        NSLog(@"----Tap begin");
        [self writeDebugInfo];

        [scrollView zoomToRect:CGRectMake(0.0,  0.0, AllWidth, AllHeight) animated: NO];
        NSLog(@"----Tap after zoom");
        [self writeDebugInfo];
        NSLog(@"----Tap end");
        NSLog(@"----0.1 second after Tap:");
        [self performSelector:@selector(writeDebugInfo) withObject:nil afterDelay:0.1];

    }
}
@end