@Override
	public Dimension getMinimumSize() {
		Msg.debug(this, "getMinSize" + super.getMinimumSize());
		Dimension d1 = getLeftComponent().getMinimumSize();
		Dimension d2 = getRightComponent().getMinimumSize();
		if (getOrientation() == JSplitPane.HORIZONTAL_SPLIT) {
			d1 = new Dimension(d1.width + d2.width, Math.max(d1.height, d2.height));
		}
		else {
			d1 = new Dimension(Math.max(d1.width, d2.width), d1.height + d2.height);
		}
		Msg.debug(this, "my min size = " + d1);
		return d1;
	}
Constructs a new SplitNode from the XML JDOM element
@param elem the XML JDOM element containing the configuration information.
@param mgr the DockingWindowsManager for this node.
@param parent the parent node for this node.
@param restoredPlaceholders the list into which any restored placeholders will be placed
Ghidra/Framework/Docking/src/main/java/docking/SplitNode.java