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 ( orthSeriesDefinition == null )
		{
			return false;
		}
		String yGroupExpr = null;
		if ( orthSeriesDefinition.getQuery( ) != null )
		{
			yGroupExpr = orthSeriesDefinition.getQuery( ).getDefinition( );
		}
		return yGroupExpr != null && !"".equals( yGroupExpr ); 
	}
	/**
	 * Check if base series grouping is defined.
	 * 
	 * @param baseSD
	 * @since BIRT 2.3
	 */
	public static boolean isBaseGroupingDefined( SeriesDefinition baseSD )
	{
		if ( baseSD.getGrouping( ) != null && baseSD.getGrouping( ).isEnabled( ) )
		{
			return true;
		}
		return false;
	}
	/**
	 * Check if current chart has defined grouping.
	 * 
	 * @param cm