private void updateOrientation() {
		int orientation = toggleOrientationAction.isSelected() ? JSplitPane.HORIZONTAL_SPLIT
				: JSplitPane.VERTICAL_SPLIT;
		splitPane.setOrientation(orientation);
		splitPane.setDividerLocation(0.5);
	}
Notification to subclasses that the comparison data has changed
Ghidra/Features/Base/src/main/java/ghidra/features/base/codecompare/panel/CodeComparisonPanel.java