/// <summary>
/// Adds an existing line to this region, updating the items' parent in the process.
/// And increasing the size of this region if the block is closed.
/// </summary>
/// <param name="item"></param>
public virtual void AddExistingItem(PDFLayoutLine line)
{
if (null == line)
{
throw new ArgumentNullException("line");
}
this._contents.Add(line);
line.SetOffset(line.OffsetX, this.Height);
line.SetParent(this);
line.LineIndex = this.Contents.Count - 1;
if (line.IsClosed)
{
this.AddToSize(line);
}
}
