RoxorzBloxorz.mm

    NSDictionary *metrics = @{@"padding": @25};
    NSDictionary *views = NSDictionaryOfVariableBindings(imageView, thumbnailsView, container, titleLabel);
    
    void (^addConstraint)(NSString *) = ^(NSString *format) {
        [mainView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:format options:0 metrics:metrics views:views]];
    };
    
    addConstraint(@"|-padding-[thumbnailsView]-padding-|");
    addConstraint(@"V:[thumbnailsView(==100)]-padding-|");
    addConstraint(@"|-padding-[imageView][thumbnailsView]");
    addConstraint(@"|-padding-[container]-padding-|");
    addConstraint(@"V:|-padding-[container][thumbnailsView]|");