Bug 171533 Pie chart legends are truncated
This only happens with a title for the legend. There is a small bug in the layout algorithm that causes the clipping in such case.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/LegendBuilder.java
dW,
						xs,
						itm,
						la,
						legendData.dEllipsisWidth,
						legendData.maxWrappingSize );
				if ( newMetrics != null )
				{
					dW = newMetrics[0];
					dFHeight = newMetrics[1];
				}
				dDeltaHeight = legendData.insCa.getTop( )
						+ dFHeight
						+ legendData.insCa.getBottom( );
				if ( cm.getLegend( ).isShowValue( ) )
				{
					DataSetIterator dsiBase = null;
					try
					{
						dsiBase = new DataSetIterator( se.getDataSet( ) );
					}
					catch ( Exception ex )
					{
						throw new ChartException( ChartEnginePlugin.ID,
								ChartException.GENERATION,
								ex );
					}
					
					if ( dsiBase.hasNext( ) )
					{