NSMutableParagraphStyle * paragraphStyle = [[NSParagraphStyle defaultParagraphStyle] mutableCopy];
[paragraphStyle setAlignment:NSCenterTextAlignment];
[paragraphStyle setLineBreakMode:NSLineBreakByTruncatingTail];
NSFont *font1 = [NSFont fontWithName:@"HelveticaNeue-Medium" size:12];
NSFont *font2 = [NSFont fontWithName:@"HelveticaNeue-Medium" size:24];
NSDictionary *attributes1 = @{NSFontAttributeName : font1, NSParagraphStyleAttributeName : paragraphStyle};
NSDictionary *attributes2 = @{NSFontAttributeName : font2, NSParagraphStyleAttributeName : paragraphStyle};
CGSize size1 = [@"Foobar" sizeWithAttributes:attributes1];
CGSize size2 = [@"Foobar" sizeWithAttributes:attributes2];
(lldb) p size1
(CGSize) $0 = (width=39.576, height=19)
(lldb) p size2
(CGSize) $1 = (width=79.152, height=29)