Bug 134671 Legend title is displayed incorrectly.
Legend title is displayed incorrectly. Steps: 1.Import the attached report design file 2.Preview Actual Results: 1.Legend title is "Company", but displayed as "=Company" Expected Results: 1.Legend title is displayed correctly.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/BaseRenderer.java
dX /= iCount;
		}
		return dX;
	}
	/**
	 * post-process the triggers.
	 * 
	 * @param tg The Trigger to modify
	 * @param source The StructureSource associated with the Trigger 
	 */
	public void processTrigger( Trigger tg, StructureSource source )
	{
		
		IActionRenderer iar = getRunTimeContext( ).getActionRenderer( );
		if ( iar != null )
		{
			iar.processAction( tg.getAction( ), source );
		}
		
		if ( StructureType.SERIES_DATA_POINT.equals( source.getType( ) ) )
		{
			DataPointHints dph = (DataPointHints) source.getSource( );
			if ( tg.getAction( ).getType( ) == ActionType.SHOW_TOOLTIP_LITERAL )
			{
				
				String toolText = ( (TooltipValue) tg.getAction( ).getValue( ) ).getText( );
				
				if ( toolText == null || toolText.length( ) == 0 )
				{
					( (TooltipValue) tg.getAction( ).getValue( ) ).setText( dph.getDisplayValue( ) );