Bug 210241 Axis title should be horizontal to Axis by default when select Flip Axis.
chart/org.eclipse.birt.chart.ui.extension/src/org/eclipse/birt/chart/ui/swt/wizard/TaskSelectType.java
}
			}
			sOldType = sType;
			createAndDisplayTypesSheet( sType );
			setDefaultSubtypeSelection( );
		}
	}
	public void dispose( )
	{
		super.dispose( );
		
		chartModel = null;
		if ( previewPainter != null )
		{
			previewPainter.dispose( );
		}
		previewPainter = null;
		sSubType = null;
		sType = null;
		sDimension = null;
		vSubTypeNames = null;
		orientation = null;
	}
	private void refreshChart( )
	{
		
		ChartAdapter.beginIgnoreNotifications( );
		IChartType chartType = (IChartType) htTypes.get( sType );
		boolean bException = false;
		try