Bug 214572 Implement IAggregationCellViewProvider for crosstab/chart integration
This interface implements the model logic for the designer UI, when the users design a crosstab with charts. Note that it is independent from the multi-view feature. /** * Return the name of this view */ String getViewName( ); // this should simply return "chart" /** * Returns if the given aggregation cell matches this view */ boolean matchView( AggregationCellHandle cell ); Returns true if chart is supported in this type of aggregation cell /** * Switches given aggregation cell to this view */ void switchView( AggregationCellHandle cell ); create a chart inside the aggregation cell (and remove the data elements). This method is called when the UI tries to switch the cell contents from data element to chart. /** * Restores given aggregation cell to previous view */ void restoreView( AggregationCellHandle cell );
chart/org.eclipse.birt.chart.reportitem/src/org/eclipse/birt/chart/reportitem/ChartReportItemUtil.java
{
			if ( handle instanceof ListingHandle )
			{
				return (ReportItemHandle) handle;
			}
			if ( handle instanceof ReportItemHandle )
			{
				if ( ( (ReportItemHandle) handle ).getDataBindingReference( ) != null
						|| ( (ReportItemHandle) handle ).getCube( ) != null
						|| ( (ReportItemHandle) handle ).getDataSet( ) != null
						|| ( (ReportItemHandle) handle ).columnBindingsIterator( )
								.hasNext( ) )
				{
					return (ReportItemHandle) handle;
				}
			}
			ReportItemHandle result = getBindingHolder( handle.getContainer( ) );
			if ( result == null
					&& handle instanceof ReportItemHandle
					&& !( handle instanceof GridHandle ) )
			{
				result = (ReportItemHandle) handle;
			}
			return result;
		}
		return null;
	}
	/**
	 * Checks if shared scale is needed when computation
	 *