DTAttributed Label with DTTextAttachment outside UIEdgeInsets

UIViewController.m

@interface UIViewController ()
{
    DTAttributedLabel* storyLabel;
}
 
- (void)viewDidLoad
{
    storyLabel.edgeInsets = UIEdgeInsetsMake(20, 20, 20, 20);
}
 
- (UIView *)attributedTextContentView:(DTAttributedTextContentView *)attributedTextContentView viewForAttachment:(DTTextAttachment *)attachment frame:(CGRect)frame
{
    if([attachment isKindOfClass:[DTImageTextAttachment class]])
    {
        DTLazyImageView *imageView = [[DTLazyImageView alloc] initWithFrame:frame];
        imageView.delegate = self;
        imageView.contentMode = UIViewContentModeScaleAspectFit;
        
        // url for deferred loading
        imageView.url = attachment.contentURL;
        return imageView;
    }
    return nil;
}
 
- (void)lazyImageView:(DTLazyImageView *)lazyImageView didChangeImageSize:(CGSize)size
{
    NSURL *url = lazyImageView.url;
    NSPredicate *pred = [NSPredicate predicateWithFormat:@"contentURL == %@", url];
    
    // update all attachments that matching this URL
    for (DTTextAttachment *oneAttachment in [storyLabel.layoutFrame textAttachmentsWithPredicate:pred])
    {
        oneAttachment.originalSize = size;
        CGFloat aspectRatio = 320 / oneAttachment.displaySize.width;
        CGSize maxSize = CGSizeMake(oneAttachment.originalSize.width * aspectRatio, oneAttachment.originalSize.height * aspectRatio);
        oneAttachment.displaySize = maxSize;
    }
    
    // need to reset the layouter because otherwise we get the old framesetter or cached layout frames
    storyLabel.layouter = nil;
    
    // here we're layouting the entire string,
    // might be more efficient to only relayout the paragraphs that contain these attachments
    [storyLabel relayoutText];
    
}