gistfile1.txt

- (CGSize)sizeConstrainedInRect:(CGRect)rect {
  CGSize size = CGSizeZero;

  UIGraphicsBeginImageContextWithOptions(rect.size, YES, self.layer.contentsScale);
  
  CGContextRef ctx = UIGraphicsGetCurrentContext();
  UIGraphicsPushContext(ctx);
  [self.layer renderInContext:ctx];
  UIGraphicsEndImageContext();
  UIGraphicsPopContext();
  
  size.width = CGRectGetWidth(rect);
  size.height = CGRectGetMinY(rect) + [(CMText *)[m_nodes lastObject] frame].end.y;
  return size;
}