/**
* Arranges the contents of the block, within the given constraints, and returns the block size.
*
* @param g2 the graphics device.
* @param constraint the constraint (<code>null</code> not permitted).
* @return The block size (in Java2D units, never <code>null</code>).
*/
public Size2D arrange(Graphics2D g2, RectangleConstraint constraint) {
Size2D base = new Size2D(getWidth(), getHeight());
return constraint.calculateConstrainedSize(base);
}
