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
}
		}
		this.series = series;
		this.context = context;
		init( );
		placeComponents( );
		
		ChartUIUtil.bindHelp( parent, getHelpId( series ) );
	}
	private String getHelpId( Series series )
	{
		String helpId = ChartHelpContextIds.SUBTASK_YSERIES_LINE;
		if ( series instanceof AreaSeries )
		{
			helpId = ChartHelpContextIds.SUBTASK_YSERIES_AREA;
		}
		else if ( series instanceof ScatterSeries )
		{
			helpId = ChartHelpContextIds.SUBTASK_YSERIES_SCATTER;
		}
		return helpId;
	}
	private void init( )
	{
		this.setSize( getParent( ).getClientArea( ).width,
				getParent( ).getClientArea( ).height );
	}
	private void placeComponents( )
	{