@Override
	public Dimension preferredLayoutSize(Container parent) {
		return new Dimension(getPreferredWidth(parent), getPreferredHeight(parent));
	}
Construct layout where first two components always have given width.
@param componentWidth the width of each of the first two components.
@param hgap the space between componennts.
Ghidra/Framework/Docking/src/main/java/docking/widgets/table/constraint/dialog/FilterPanelLayout.java