if (fPresenter != null) fPresenter.setCanceled(true);
	public void uninstall() {		if (fEditor != null) {			if (fEditor instanceof CompilationUnitEditor)				((CompilationUnitEditor)fEditor).removeReconcileListener(this);			else				fSourceViewer.removeTextInputListener(this);			fEditor= null;		}				fSourceViewer= null;		fSemanticHighlightings= null;		fHighlightings= null;		fPresenter= null;	}