Bug 160954 Legend area disappears when tick Show Value check box for Gantt chart
Legend area disapears when tick Show Value check box for Gantt chart Steps to reproduce: 1. Create a Gantt Chart. 2. Double click the chart, select "Format Chart" button, go to Chart Area->Legend, tick "Legend Visible" check box, tick "Value: Show Value" check box Expected result: Value is shown. Actual result: The legend area dispears.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/LegendBuilder.java
{
					throw new ChartException( ChartEnginePlugin.ID,
							ChartException.RENDERING,
							uiex );
				}
				dW = bb.getWidth( );
				double dFHeight = bb.getHeight( );
				double dExtraHeight = 0;
				String extraText = null;
				double dExceedingSpace = dExtraWidth
						+ dW
						+ legendData.dHorizonalReservedSpace
						- legendData.dAvailableWidth
						- legendData.dSafeSpacing;
				double[] newMetrics = checkEllipsisText( dExceedingSpace,
						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( ) )