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/composites/LineAttributesComposite.java
{
			
			attributes = AttributeFactory.eINSTANCE.createLineAttributes( );
		}
		laCurrent = attributes;
		if ( bEnableVisibility )
		{
			cbVisible.setSelection( laCurrent.isVisible( ) );
			boolean bUIEnabled = cbVisible.getSelection( );
			if ( bEnableStyles )
			{
				cmbStyle.setEnabled( bUIEnabled );
				lblStyle.setEnabled( bUIEnabled );
			}
			if ( bEnableWidths )
			{
				cmbWidth.setEnabled( bUIEnabled );
				lblWidth.setEnabled( bUIEnabled );
			}
			if ( bEnableColor )
			{
				cmbColor.setEnabled( bUIEnabled );
				lblColor.setEnabled( bUIEnabled );
			}
		}
		if ( bEnableStyles )
		{
			cmbStyle.setLineStyle( getSWTLineStyle( laCurrent.getStyle( ) ) );
		}
		if ( this.bEnableWidths )