Bug 117149 Add additional datapoint markers
I would like to propose adding additional datapoint markers. Attached is a set of markers I would like supported.
chart/org.eclipse.birt.chart.ui.extension/src/org/eclipse/birt/chart/ui/swt/series/LineSeriesAttributeComposite.java
fccShadow.addListener( this );
		}
		btnPalette = new Button( this, SWT.CHECK );
		{
			btnPalette.setText( Messages.getString( "LineSeriesAttributeComposite.Lbl.LinePalette" ) ); 
			btnPalette.setSelection( ( (LineSeries) series ).isPaletteLineColor( ) );
			btnPalette.addSelectionListener( this );
		}
		btnCurve = new Button( this, SWT.CHECK );
		{
			btnCurve.setText( Messages.getString( "LineSeriesAttributeComposite.Lbl.ShowLinesAsCurves" ) ); 
			btnCurve.setSelection( ( (LineSeries) series ).isCurve( ) );
			btnCurve.addSelectionListener( this );
		}
		if ( !( series instanceof AreaSeries || series instanceof ScatterSeries ) )
		{
			btnMissingValue = new Button( this, SWT.CHECK );
			{
				btnMissingValue.setText( Messages.getString( "LineSeriesAttributeComposite.Lbl.ConnectMissingValue" ) ); 
				GridData gdBTNMissingValue = new GridData( );
				gdBTNMissingValue.horizontalSpan = 4;
				btnMissingValue.setLayoutData( gdBTNMissingValue );
				btnMissingValue.setSelection( ( (LineSeries) series ).isConnectMissingValue( ) );
				btnMissingValue.addSelectionListener( this );
			}
		}
		if ( !isShadowNeeded( ) )
		{
			GridData gd = new GridData( );
			gd.horizontalSpan = 2;