Bug 201042 [Accessibility]Chart scritp should not add by auto when click the down in keyboard[17]
Description: Chart scritp should not add by auto when click the down in keyboard[0704] Step: 1. New a chart and switch to script view. 2. Let the point on the script function selection. 3. Click the down on keyboard. Actual result: A function will add by auto. Expected result: Customer can not select the function under the second function by keyboard, and it should not be added by auto.
chart/org.eclipse.birt.chart.ui.extension/src/org/eclipse/birt/chart/ui/swt/composites/LineWidthChooserComposite.java
}
	public LineWidthChooserComposite( Composite parent, int style, int iWidth )
	{
		super( parent, style, new Integer( iWidth ) );
		setItems( iLineWidths );
	}
	protected ICustomChoice createChoice( Composite parent, Object choiceValue )
	{
		if ( choiceValue == null )
		{
			choiceValue = new Integer( 0 );
		}
		return new LineWidthChoice( parent,
				SWT.NONE,
				( (Integer) choiceValue ).intValue( ) );
	}
	/**
	 * Returns the currently selected line width
	 * 
	 * @return currently selected line width
	 */
	public int getLineWidth( )
	{
		return ( (Integer) getChoiceValue( ) ).intValue( );
	}
	public void setLineWidth( int iWidth )
	{
		setChoiceValue( new Integer( iWidth ) );
	}
}