Bug 211773 Legend entries overlap
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/BaseRenderer.java
* 
	 * @return <code>DeferredCacheManager</code> instance.
	 */
	public DeferredCacheManager getDeferredCacheManager( )
	{
		return fDeferredCacheManager;
	}
	
	/**
	 * Creates the interaction event for triggers list
	 * 
	 * @param iSource
	 * @param elTriggers
	 * @param ipr
	 * @return
	 */
	protected final InteractionEvent createEvent( StructureSource iSource,
			List elTriggers, IPrimitiveRenderer ipr )
	{
		final InteractionEvent iev = new InteractionEvent( iSource );
		for ( int t = 0; t < elTriggers.size( ); t++ )
		{
			Trigger tg = TriggerImpl.copyInstance( (Trigger) elTriggers.get( t ) );
			processTrigger( tg, iSource );
			iev.addTrigger( tg );
		}
		return iev;
	}
	/**
	 * Renders the interactivity hotspot for a data point