Bug 168839 Chart Legend Toggle Visibility does not work correctly for Pie chart in SVG[0001]
Description: Chart Legend Toggle Visibility does not work correctly . Build number: 2.1.2.v20061221-0710 Steps to reproduce: 1. Preview the attached design file. 2. Click the legend. Expected result: Toggle Visibility works correctly. Actual result: Pie slice of different color disappears when being click. Error log: N/A
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/BaseRenderer.java
{
					throw new ChartException( ChartEnginePlugin.ID,
							ChartException.RENDERING,
							"exception.null.legend.item.hints", 
							Messages.getResourceBundle( rtc.getULocale( ) ) );
				}
				
				LegendItemHints[] liha = lilh.getLegendItemHints( );
				LegendItemHints lih;
				for ( int i = 0; i < liha.length; i++ )
				{
					
					lih = liha[i];
					if ( ( lih.getType( ) & IConstants.LEGEND_ENTRY ) == IConstants.LEGEND_ENTRY )
					{
						la.getCaption( ).setValue( lih.getText( ) );
						
						fPaletteEntry = (Fill) elPaletteEntries.get( lih.getCategoryIndex( )
								% iPaletteCount );
						lirh = (LegendItemRenderingHints) htRenderers.get( seBase );
						renderLegendItem( ipr,
								lg,
								la,
								null,
								dBaseX + lih.getLeft( ),
								dBaseY + lih.getTop( ) + insCA.getTop( ),
								lih.getWidth( ),
								dItemHeight,
								lih.getHeight( ),
								0,