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
true );
		{
			liacOutline.addListener( this );
		}
		createDataPointArea( cmpRight );
		icInsets = new InsetsComposite( cmpRight,
				SWT.NONE,
				getSeriesForProcessing( ).getLabel( ).getInsets( ),
				getChart( ).getUnits( ),
				getContext( ).getUIServiceProvider( ) );
		{
			GridData gdICInsets = new GridData( GridData.FILL_HORIZONTAL );
			gdICInsets.heightHint = icInsets.getPreferredSize( ).y;
			gdICInsets.grabExcessVerticalSpace = false;
			icInsets.setLayoutData( gdICInsets );
			icInsets.addListener( this );
		}
		
		populateLists( getSeriesForProcessing( ) );
		setEnabled( getSeriesForProcessing( ).getLabel( ).isVisible( ) );
		refreshDataPointButtons( );
		return cmpContent;
	}
	private void populateLists( Series series )
	{
		
		String[] componentsDisplayName = LiteralHelper.dataPointComponentTypeSet.getDisplayNames( );
		try
		{