class RadioButtonComposite extends Composite
{
	protected Button rb1, rb2, rb3, rb4;
		
	public RadioButtonComposite(Composite parent, int style)
	{
		super(parent, style);
		RowLayout row_layout = new RowLayout(SWT.HORIZONTAL);
		row_layout.spacing = 5;
		row_layout.marginLeft = 0;
		row_layout.marginRight = 0;
		this.setLayout(row_layout);
			
		new Label(this, SWT.LEFT).setText("very few");
		rb1 = new Button(this, SWT.RADIO);
		rb2 = new Button(this, SWT.RADIO);
		rb2 = new Button(this, SWT.RADIO);
		rb4 = new Button(this, SWT.RADIO);
		new Label(this, SWT.LEFT).setText("very much");

			
		refreshUI();
	}
		
	public int getSelectedButtonIndex()
	{
		try{
		if (this.rb1.getSelection() == true)
			return 1;
		else if (this.rb2.getSelection() == true)
			return 2;
		else if (this.rb3.getSelection() == true)
			return 3;
		else if (this.rb4.getSelection() == true)
			return 4;
		else
			return 0;
		} catch(Exception e)
		{
			System.out.println("Error in getSelection()");
			e.printStackTrace();
			return 0;
		}
	}
		
	public String getAnswerString()
	{
		int answer = getSelectedButtonIndex();
		String a_string;
		switch(answer)
		{
		case 1: a_string = "very few"; break;
		case 2: a_string = "few"; break;
		case 3: a_string = "much"; break;
		case 4: a_string = "very much"; break;
		default: a_string = "unspecified";
		}
		return a_string;
	}
		
	protected void refreshUI()
	{
		pack();
		this.getParent().layout(true);
		layout(true);
	}
		
}