gistfile1.txt

var checkboxImage,
    checkboxAlternateImage,
    checkboxCheckedImage,
    checkboxCheckedAlternateImage;

@implementation CheckboxButton : CPButton
{
    BOOL    _isChecked;
}

+ (void)initialize
{
    checkboxImage = [[CPImage alloc] initWithContentsOfFile: "Resources/Checkbox/checkbox.png" size: CPSizeMake(14, 15)],
    checkboxAlternateImage = [[CPImage alloc] initWithContentsOfFile: "Resources/Checkbox/checkbox_h.png" size: CPSizeMake(14, 15)],
    checkboxCheckedImage = [[CPImage alloc] initWithContentsOfFile: "Resources/Checkbox/checkbox_checked.png" size: CPSizeMake(14, 15)],
    checkboxCheckedAlternateImage = [[CPImage alloc] initWithContentsOfFile: "Resources/Checkbox/checkbox_checked_h.png" size: CPSizeMake(14, 15)];
}

- (id)initWithFrame:(CPRect)frame
{
    self = [super initWithFrame: frame];

    _isChecked = false;

    [self setTitle:@"_"];
    [self setBordered:NO];

    // FIXME: No!
    [_imageAndTitleView._titleField setLineBreakMode: CPLineBreakByWordWrapping];
    [self setImage: checkboxImage];
    [self setAlternateImage: checkboxAlternateImage];

    [self setImagePosition: CPImageLeft];
    [self setAlignment:CPLeftTextAlignment];

    return self;
}

- (void)mouseUp:(CPEvent)anEvent
{
    if (CGRectContainsPoint([self bounds], [self convertPoint:[anEvent locationInWindow] fromView:nil])) {
      [self setChecked: !_isChecked];
    }
    [super mouseUp: anEvent];
}

- (BOOL)isChecked
{
    return _isChecked;
}

- (void)setChecked:(BOOL)flag
{
    _isChecked = flag;

    if(_isChecked)
    {
        [self setImage: checkboxCheckedImage];
        [self setAlternateImage: checkboxCheckedAlternateImage];
    }
    else
    {
        [self setImage: checkboxImage];
        [self setAlternateImage: checkboxAlternateImage];
    }
}

@end