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
{
				bEnableUI = cbVisible.getSelection( );
			}
		}
		if ( bEnableStyles )
		{
			lblStyle = new Label( cmpContent, SWT.NONE );
			GridData gdLStyle = new GridData( GridData.HORIZONTAL_ALIGN_BEGINNING );
			lblStyle.setLayoutData( gdLStyle );
			lblStyle.setText( Messages.getString( "LineAttributesComposite.Lbl.Style" ) ); 
			lblStyle.setEnabled( bEnableUI );
			cmbStyle = new LineStyleChooserComposite( cmpContent,
					SWT.DROP_DOWN | SWT.READ_ONLY,
					getSWTLineStyle( laCurrent.getStyle( ) ),
					getLineStyleItems( ) );
			GridData gdCBStyle = new GridData( GridData.FILL_HORIZONTAL );
			gdCBStyle.horizontalSpan = 5;
			cmbStyle.setLayoutData( gdCBStyle );
			cmbStyle.addListener( LineStyleChooserComposite.SELECTION_EVENT,
					this );
			cmbStyle.setEnabled( bEnableUI );
		}
		if ( bEnableWidths )
		{
			lblWidth = new Label( cmpContent, SWT.NONE );
			GridData gdLWidth = new GridData( GridData.HORIZONTAL_ALIGN_BEGINNING );
			lblWidth.setLayoutData( gdLWidth );
			lblWidth.setText( Messages.getString( "LineAttributesComposite.Lbl.Width" ) ); 
			lblWidth.setEnabled( bEnableUI );
			cmbWidth = new LineWidthChooserComposite( cmpContent, SWT.DROP_DOWN