/Users/awniemel/Notepad-SVN/svn/trunk/CatNiP/CatNiP/UIScoreView.m

Go to the documentation of this file.

#import "UIScoreView.h"
#import "UIDocumentPDF.h"

@implementation UIScoreView

@synthesize scrollBar;
@synthesize documentView;

static const CGFloat SCROLLBAR_WIDTH = 50;

- (id)init
{
    // Some sorcery to retrieve the default settings for the object from
    // UIScoreView.xib
    UIView *scoreView = nil;
    NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"UIScoreView" owner:self options:nil];
    for(id object in nib)
        if([object isKindOfClass:[UIView class]])
            scoreView = (UIView *)[object retain];
    
    if(scoreView)
    {
        // The sorcery continues
        scoreView.frame = CGRectMake(0, 0, self.frame.size.width, self.frame.size.height);
        [self addSubview:scoreView];
        
        // Connect documentView to scrollBar, turn directional locking on
        // because apparently Interface Builder doesn't know how
        documentView.delegate = scrollBar;
        documentView.directionalLockEnabled = YES;
        
        // Rotate scroll bar because Interface Builder doesn't know how,
        // link it to documentView
        scrollBar.direction = M_PI_2;
        [scrollBar setFrame:CGRectMake(self.frame.size.width - SCROLLBAR_WIDTH, 0, SCROLLBAR_WIDTH, self.frame.size.height)];
        scrollBar.delegate = documentView;
        scrollBar.autoresizingMask = UIViewAutoresizingFlexibleHeight |UIViewAutoresizingFlexibleLeftMargin;
        
        // Add tap gesture recognition
        UITapGestureRecognizer *gestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapGesture:)];
        [gestureRecognizer setDelegate:self];
        [self addGestureRecognizer:gestureRecognizer];
    }
    
    return self;
}

- (id)initWithCoder:(NSCoder *)aDecoder
{
    if((self = [super initWithCoder:aDecoder]))
        return [self init];
    else
        return nil;
}

- (id)initWithFrame:(CGRect)frame
{
    if((self = [super initWithFrame:frame]))
        return [self init];
    else
        return nil;
}

- (BOOL)setScore:(NSString *)scorePath
{
    UIDocument *document;
    if((document = [UIDocumentPDF documentWithContentsOfFile:scorePath])) {
        // Set minimum zoom level as fit-to-width in portrait mode, maximum
        // as twice that.
        documentView.minimumZoomScale = documentView.bounds.size.width / document.size.width;
        documentView.maximumZoomScale = 2 * documentView.minimumZoomScale;
        
        documentView.document = document;
        return YES;
    }
    return NO;
}

- (void)showScrollBar:(BOOL)show
{
    if(show)
    {
        [UIView animateWithDuration:0.7 
                              delay:0.0
                            options:UIViewAnimationOptionCurveEaseIn
                         animations:^{ scrollBar.transform = CGAffineTransformMakeTranslation(0, 0); }
                         completion:NULL];

    }
    else
    {
        [UIView animateWithDuration:0.7 
                              delay:0.0
                            options:UIViewAnimationOptionCurveEaseIn
                         animations:^{ scrollBar.transform = CGAffineTransformMakeTranslation(scrollBar.frame.size.width, 0); }
                         completion:NULL];
    }
}

#pragma mark - Gesture recognizer methods

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
{
    return YES;
}

- (void)tapGesture:(UIGestureRecognizer *)gestureRecognizer
{
    CGPoint touch = [gestureRecognizer locationInView:self];
    if(touch.x >= self.frame.size.width - scrollBar.frame.size.width) {
        [self showScrollBar:YES];
    }
    else {
        [self showScrollBar:NO];
    }
}

- (void)dealloc
{
    [documentView release];
    [scrollBar release];
    [super dealloc];
}

@end