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
}
	public Point getPreferredSize( )
	{
		Point ptSize = new Point( 250, 40 );
		if ( bEnableVisibility )
		{
			ptSize.y += 30;
		}
		if ( bEnableStyles )
		{
			ptSize.y += 30;
		}
		if ( bEnableWidths )
		{
			ptSize.y += 30;
		}
		return ptSize;
	}
	/**
	 * @deprecated To use {@link #setAttributesEnabled(boolean)}
	 */
	public void setEnabled( boolean bState )
	{
		setAttributesEnabled( bState );
	}
	public void setAttributesEnabled( boolean bState )
	{
		boolean bEnableUI = this.laCurrent.isVisible( );
		if ( this.bEnableVisibility )
		{