Bug 208449 crosstab/chart integration framework
In order to enable charts inside crosstab, some specific logic needs to be written for that particular scenario. This enhancement aims to - Design how to add this new logic in a modular way by either creating a new plugin org.eclipse.birt.chart.reportitem.crosstab (needs extension?) or using OO design. - Implement the framework structure that will contain the business logic to render charts in crosstabs.
chart/org.eclipse.birt.chart.reportitem/src/org/eclipse/birt/chart/reportitem/ChartReportItemPresentationImpl.java
if ( isOutputRendererSupported( formats ) )
				{
					return formats;
				}
			}
			else
			{
				String ext = formats.substring( 0, idx );
				if ( isOutputRendererSupported( ext ) )
				{
					return ext;
				}
				else
				{
					return getFirstSupportedFormat( formats.substring( idx + 1 ) );
				}
			}
		}
		
		return "PNG"; 
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.engine.extension.IReportItemPresentation#setModelObject(org.eclipse.birt.report.model.api.ExtendedItemHandle)
	 */
	public void setModelObject( ExtendedItemHandle eih )
	{
		IReportItem item = null;
		try