Bug 211773 Legend entries overlap
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/LegendBuilder.java
Label seLabel = LabelImpl.copyInstance( se.getLabel( ) );
						seLabel.getCaption( ).setValue( valueText );
						itm.reuse( seLabel );
						
						BoundingBox bbV = null;
						try
						{
							bbV = Methods.computeBox( xs,
									IConstants.ABOVE,
									seLabel,
									0,
									0 );
						}
						catch ( IllegalArgumentException uiex )
						{
							throw new ChartException( ChartEnginePlugin.ID,
									ChartException.RENDERING,
									uiex );
						}
						double dWV = bbV.getWidth( );
						double dFHeightV = bbV.getHeight( );
						double dExceedingSpaceV = dExtraWidth
								+ dWV
								+ legendData.dHorizonalReservedSpace
								- legendData.dAvailableWidth
								- legendData.dSafeSpacing;
						newMetrics = checkEllipsisText( dExceedingSpaceV,
								dWV,
								xs,
								itm,