Bug 161429 center position missing for gantt chart
When designing a gantt chart, it should be possible to display the labels inside the bar, using a new "center" attribute. See how it should like in UI and output in attached screenshot.
chart/org.eclipse.birt.chart.ui.extension/src/org/eclipse/birt/chart/ui/swt/wizard/format/popup/series/SeriesLabelSheet.java
if ( dpc.getOrthogonalType( ).length( ) == 0 )
			{
				
				sArr.add( LiteralHelper.dataPointComponentTypeSet.getDisplayNameByName( dpc.getType( )
						.getName( ) ) );
				dataPointIndex.add( new Integer( i ) );
			}
			else if ( mapDataPointNames.containsKey( dpc.getOrthogonalType( ) ) )
			{
				
				sArr.add( mapDataPointNames.get( dpc.getOrthogonalType( ) ) );
				dataPointIndex.add( new Integer( i ) );
			}
		}
		return (String[]) sArr.toArray( new String[0] );
	}
	private void createAttributeArea( Composite parent )
	{
		grpAttributes = new Group( parent, SWT.NONE );
		{
			grpAttributes.setLayoutData( new GridData( GridData.FILL_BOTH ) );
			grpAttributes.setLayout( new GridLayout( 2, false ) );
			grpAttributes.setText( Messages.getString( "SeriesLabelSheet.Label.Format" ) ); 
		}
		lblPosition = new Label( grpAttributes, SWT.NONE );
		GridData gdLBLPosition = new GridData( );
		lblPosition.setLayoutData( gdLBLPosition );
		lblPosition.setText( Messages.getString( "LabelAttributesComposite.Lbl.Position" ) ); 
		cmbPosition = new Combo( grpAttributes, SWT.DROP_DOWN | SWT.READ_ONLY );
		GridData gdCMBPosition = new GridData( GridData.FILL_BOTH );