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
double dRealHeight = 0, dExtraWidth = 0, dDeltaHeight;
		ArrayList columnList = new ArrayList( );
		
		double dSeparatorThickness = legendData.dSeparatorThickness
				+ legendData.dVerticalSpacing;
		for ( int j = 0; j < seda.length; j++ )
		{
			List al = seda[j].getRunTimeSeries( );
			FormatSpecifier fs = seda[j].getFormatSpecifier( );
			boolean oneVisibleSerie = false;
			for ( int i = 0; i < al.size( ); i++ )
			{
				Series se = (Series) al.get( i );
				if ( se.isVisible( ) )
				{
					oneVisibleSerie = true;
				}
				else
				{
					continue;
				}
				Object obj = se.getSeriesIdentifier( );
				String lgtext = rtc.externalizedMessage( String.valueOf( obj ) );
				if ( fs != null )
				{
					try
					{
						lgtext = ValueFormatter.format( lgtext,
								fs,
								rtc.getULocale( ),