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
public static CubeHandle getBindingCube( DesignElementHandle element )
	{
		if ( element == null )
		{
			return null;
		}
		if ( element instanceof ReportItemHandle )
		{
			CubeHandle cube = ( (ReportItemHandle) element ).getCube( );
			if ( cube != null )
			{
				return cube;
			}
			else if ( ( (ReportItemHandle) element ).getDataBindingType( ) == ReportItemHandle.DATABINDING_TYPE_REPORT_ITEM_REF )
			{
				return getBindingCube( ( (ReportItemHandle) element ).getDataBindingReference( ) );
			}
			else if ( ( (ReportItemHandle) element ).getDataBindingType( ) == ReportItemHandle.DATABINDING_TYPE_DATA )
			{
				return null;
			}
		}
		if ( element.getContainer( ) != null )
		{
			return getBindingCube( element.getContainer( ) );
		}
		return null;
	}
}