Preferences preferences= JavaCore.getPlugin().getPluginPreferences(); preferences.addPropertyChangeListener(fPropertyChangeListener);
	public void createPartControl(Composite parent) {					super.createPartControl(parent);		fPaintManager= new PaintManager(getSourceViewer());		if (isBracketHighlightingEnabled())			startBracketHighlighting();		if (isLineHighlightingEnabled())			startLineHighlighting();		if (isPrintMarginVisible())			showPrintMargin();		if (isProblemIndicationEnabled())			startProblemIndication();		if (isTabConversionEnabled())			startTabConversion();		if (isOverviewRulerVisible())			showOverviewRuler();	}