contextMap = new HashMap();
	SwingInteractivityViewer( )	{		final PluginSettings ps = PluginSettings.instance( );		try		{			idr = ps.getDevice( "dv.SWING" );//$NON-NLS-1$		}		catch ( ChartException ex )		{			ex.printStackTrace( );		}		cm = InteractivityCharts.createHSChart( );	}