Bug 315366 "Auto" for Curve Fitting Line is not black but transparent
Description: "Auto" for Curve Fitting Line is not black but transparent. Build number: 2.6.0.v20100602-0949 Steps to reproduce: 1. New a chart, in Format Chart->Series->Value (Y) Series, tick "Shown Curve Fitting Line", click "Curve Fitting Line" button. 2. Select "Auto" for Color. Expected result: The line is shown with color black. Actual result: The line disappears. Error log: N/A
chart/org.eclipse.birt.chart.ui.extension/src/org/eclipse/birt/chart/ui/swt/series/LineSeriesAttributeComposite.java
* @see org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets.Event)
	 */
	public void handleEvent( Event event )
	{
		if ( event.widget.equals( liacLine ) )
		{
			if ( event.type == LineAttributesComposite.VISIBILITY_CHANGED_EVENT )
			{
				( (LineSeries) series ).getLineAttributes( )
						.setVisible( ( (Boolean) event.data ).booleanValue( ) );
				enableLineSettings( ( (LineSeries) series ).getLineAttributes( )
						.isVisible( ) );
			}
			else if ( event.type == LineAttributesComposite.STYLE_CHANGED_EVENT )
			{
				( (LineSeries) series ).getLineAttributes( )
						.setStyle( (LineStyle) event.data );
			}
			else if ( event.type == LineAttributesComposite.WIDTH_CHANGED_EVENT )
			{
				( (LineSeries) series ).getLineAttributes( )
						.setThickness( ( (Integer) event.data ).intValue( ) );
			}
			else if ( event.type == LineAttributesComposite.COLOR_CHANGED_EVENT )
			{
				( (LineSeries) series ).getLineAttributes( )
						.setColor( (ColorDefinition) event.data );
			}
		}
		else if ( event.widget.equals( fccShadow ) )