Bug 197245 Interactivity in Gantt series doesn't work[13]
Description: Inconsistent behaviors occur when (Y) Series and Legend Interactivity [Series Color By: Value Series] Build number: 2.2.1.v20070720-0630 Steps: 1. Create a Gantt Chart, Set Color By: Value Series. 2. Set Interavtivity Event: Mouse Click, Action: Highlight at (Y) Series and Legend. 3. Preview and Click. (Y) Series and Legend. Expected result: (Y) Series change color. Actual result: Chart Area change color. Error log: N/A
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/BaseRenderer.java
*/
	protected boolean isPaletteByCategory( )
	{
		return ( cm.getLegend( ).getItemType( ).getValue( ) == LegendItemType.CATEGORIES );
	}
	/**
	 * Switch Anchor value due to right-left setting.
	 * 
	 * @param anchor
	 * @return
	 */
	public Anchor switchAnchor( Anchor anchor )
	{
		if ( anchor != null && isRightToLeft( ) )
		{
			switch ( anchor.getValue( ) )
			{
				case Anchor.EAST :
					anchor = Anchor.WEST_LITERAL;
					break;
				case Anchor.NORTH_EAST :
					anchor = Anchor.NORTH_WEST_LITERAL;
					break;
				case Anchor.SOUTH_EAST :
					anchor = Anchor.SOUTH_WEST_LITERAL;
					break;
				case Anchor.WEST :
					anchor = Anchor.EAST_LITERAL;
					break;
				case Anchor.NORTH_WEST :