public void setDividerLocation(int dividerLocation) {
		splitPaneDividerLocation = dividerLocation;
		if (splitPane != null) {
			splitPane.setDividerLocation(dividerLocation);
		}
	}
Sets the divider location between the left margin areas and the main display.

@param dividerLocation the location to set on the divider.
Ghidra/Features/Base/src/main/java/ghidra/app/util/viewer/listingpanel/ListingPanel.java