*/
	public void extendParent(Object cell)
	{
		if (cell != null)
		{
			Object parent = model.getParent(cell);
			mxGeometry p = model.getGeometry(parent);

			if (parent != null && p != null && !isCellCollapsed(parent))
			{
				mxGeometry geo = model.getGeometry(cell);

				if (geo != null
						&& (p.getWidth() < geo.getX() + geo.getWidth() || p
								.getHeight() < geo.getY() + geo.getHeight()))
				{
					p = (mxGeometry) p.clone();

					p.setWidth(Math.max(p.getWidth(),
							geo.getX() + geo.getWidth()));
					p.setHeight(Math.max(p.getHeight(),
							geo.getY() + geo.getHeight()));

					cellsResized(new Object[] { parent },
							new mxRectangle[] { p });
				}
			}
		}
	}