GridData gd= new GridData(GridData.FILL_HORIZONTAL);
GridData gd= new GridData(GridData.FILL_BOTH);
	private void addLabel(Composite result, RowLayouter layouter) {		fLabel= new Label(result, SWT.WRAP);		GridData gd= new GridData(GridData.FILL_HORIZONTAL);		gd.widthHint= convertWidthInCharsToPixels(50);		fLabel.setLayoutData(gd);		updatePreviewLabel();		layouter.perform(fLabel);	}