Bug 214453 Some Legend Entries are not correct when the text is shortened by ellipsis
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/LegendBuilder.java
/**
		 * Special Methods.
		 */
		public int getIndex()
		{
			return index_;
		}
		
		public boolean getInverse()
		{
			return isInverse_;
		}
		
		public void setInverse(boolean isInverse)
		{
			isInverse_ = isInverse;
		}
		
	}
	private static final String ELLIPSIS_STRING = "..."; 
	private Size sz;
	/**
	 * The constructor.
	 */
	public LegendBuilder( )
	{
	}
	/**
	 * Computes the size of the legend. Note the computation relies on the title
	 * size, so the title block must be layouted first before this.