Bug 5449 TVT Text Expansion/Truncations in new java class dialog
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/dialogfields/SelectionButtonDialogFieldGroup.java
private Composite fButtonComposite;
	
	private Button[] fButtons;
	private String[] fButtonNames;
	private boolean[] fButtonsSelected;
	private boolean[] fButtonsEnabled;
	
	private int fGroupBorderStyle;
	private int fGroupNumberOfColumns;
	private int fButtonsStyle;	
		
	/**
	 * Creates a group without border.
	 */
	public SelectionButtonDialogFieldGroup(int buttonsStyle, String[] buttonNames, int nColumns) {
		this(buttonsStyle, buttonNames, nColumns, SWT.NONE);		
	}	
	
	
	/**
	 * Creates a group with border (label in border).
	 * Accepted button styles are: SWT.RADIO, SWT.CHECK, SWT.TOGGLE
	 * For border styles see <code>Group</code>