gistfile1.m

- (NSSize)sizeWithSize:(NSSize)size {
    if([self length] < 1) return NSZeroSize;
    
    NSTextContainer *textContainer = [[[NSTextContainer alloc] initWithContainerSize:size] autorelease];
    NSTextStorage *textStorage = [[[NSTextStorage alloc] initWithAttributedString:self] autorelease];
    NSLayoutManager *layoutManager = [[[NSLayoutManager alloc] init] autorelease];
    [layoutManager addTextContainer:textContainer];
    [textStorage addLayoutManager:layoutManager];
    [layoutManager setHyphenationFactor:0.0];

    // NSLayoutManager is lazy so for it to layout
    (void) [layoutManager glyphRangeForTextContainer:textContainer];
    
    return [layoutManager usedRectForTextContainer:textContainer].size;
}