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
i = itemHandle.columnBindingsIterator( );
			while ( i.hasNext( ) )
			{
				list.add( i.next( ) );
			}
			return list.iterator( );
		}
		return null;
	}
	/**
	 * Convert group unit type from Chart's to DtE's.
	 * 
	 * @param dataType
	 * @param groupUnitType
	 * @param intervalRange
	 * @since BIRT 2.3
	 */
	public static int convertToDtEGroupUnit( DataType dataType,
			GroupingUnitType groupUnitType, double intervalRange )
	{
		if ( dataType == DataType.NUMERIC_LITERAL )
		{
			if ( intervalRange == 0 )
			{
				return IGroupDefinition.NO_INTERVAL;
			}
			return IGroupDefinition.NUMERIC_INTERVAL;
		}
		else if ( dataType == DataType.DATE_TIME_LITERAL )
		{