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
dExtraHeight = Math.max( itm.getFullHeight( ),
								dFHeightV );
						extraText = seLabel.getCaption( ).getValue( );
						dDeltaHeight += dExtraHeight + 2 * legendData.dScale;
					}
				}
				if ( dHeight + dDeltaHeight > legendData.dAvailableHeight )
				{
					
					dColumnWidth = dMaxW + legendData.dHorizonalReservedSpace;
					if ( dExtraWidth + dColumnWidth > legendData.dAvailableWidth
							+ legendData.dSafeSpacing )
					{
						dMaxW = -legendData.dHorizonalReservedSpace;
						columnList.clear( );
						break;
					}
					else
					{
						legendData.legendItems.addAll( columnList );
						columnList.clear( );
						dExtraWidth += dColumnWidth;
						dExceedingSpace = dExtraWidth
								+ dW
								+ legendData.dHorizonalReservedSpace
								- legendData.dAvailableWidth
								- legendData.dSafeSpacing;
						newMetrics = checkEllipsisText( dExceedingSpace,
								dW,
								xs,