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/PieSeriesAttributeComposite.java
}
		}
		this.series = (PieSeries) series;
		init( );
		placeComponents( );
		ChartUIUtil.bindHelp( parent, ChartHelpContextIds.SUBTASK_YSERIES_PIE );
	}
	private void init( )
	{
		this.setSize( getParent( ).getClientArea( ).width,
				getParent( ).getClientArea( ).height );
	}
	private void placeComponents( )
	{
		{
			
			GridLayout glContent = new GridLayout( );
			glContent.numColumns = 2;
			glContent.marginHeight = 2;
			glContent.marginWidth = 4;
			
			this.setLayout( glContent );
		}
		
		grpLeaderLine = new Group( this, SWT.NONE );
		{
			GridData gdGRPLeaderLine = new GridData( GridData.FILL_BOTH );
			grpLeaderLine.setLayoutData( gdGRPLeaderLine );
			
			GridLayout glLeaderLine = new GridLayout( );