Bug 6092 JavaEditor should honor the tab width setting of the JavaFormatter
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/CodeFormatterPreferencePage.java
fButtonSelectionListener= new SelectionListener() {
			public void widgetDefaultSelected(SelectionEvent e) {}
			public void widgetSelected(SelectionEvent e) {
				if (!e.widget.isDisposed()) {
					controlChanged((Button) e.widget);
				}
			}
		};
		
		fTextModifyListener= new ModifyListener() {
			public void modifyText(ModifyEvent e) {
				if (!e.widget.isDisposed()) {
					textChanged((Text) e.widget);
				}
			}
		};
		
		fPreviewDocument= new Document();
		fPreviewText= loadPreviewFile("CodeFormatterPreviewCode.txt");		
	}
	/*
	 * @see IWorkbenchPreferencePage#init()
	 */	
	public void init(IWorkbench workbench) {
	}
	/*
	 * @see PreferencePage#createControl(Composite)
	 */
	public void createControl(Composite parent) {