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.ui/src/org/eclipse/birt/chart/reportitem/ui/views/provider/ChartAggregationCellViewProvider.java
AggregationCellViewAdapter
{
	public String getViewName( )
	{
		return "Chart"; 
	}
	public boolean matchView( AggregationCellHandle cell )
	{
		List contents = cell.getContents( );
		if ( contents != null && contents.size( ) == 1 )
		{
			Object content = contents.get( 0 );
			return ( content instanceof ExtendedItemHandle )
					&& "Chart".equals( ( (ExtendedItemHandle) content ).getExtensionName( ) ); 
		}
		return false;
	}
	public void switchView( AggregationCellHandle cell )
	{
		
	}
	public void restoreView( AggregationCellHandle cell )
	{
		
	}
}