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/ReportDataServiceProvider.java
* Filter predefined styles.
	 * 
	 * @param items
	 *            all available styles
	 * @return filtered styles.
	 */
	private String[] filterPreStyles( String items[] )
	{
		String[] newItems = items;
		if ( items == null )
		{
			newItems = new String[]{};
		}
		List preStyles = new DesignEngine( new DesignConfig( ) ).getMetaData( )
				.getPredefinedStyles( );
		List preStyleNames = new ArrayList( );
		for ( int i = 0; i < preStyles.size( ); i++ )
		{
			preStyleNames.add( ( (PredefinedStyle) preStyles.get( i ) ).getName( ) );
		}
		List sytleNames = new ArrayList( );
		for ( int i = 0; i < newItems.length; i++ )
		{
			if ( preStyleNames.indexOf( newItems[i] ) == -1 )
			{
				sytleNames.add( newItems[i] );
			}
		}
		return (String[]) ( sytleNames.toArray( new String[]{} ) );
	}