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
grpDataPoint.setEnabled( bEnableUI );
		lstComponents.setEnabled( bEnableUI );
		btnFormatSpecifier.setEnabled( bEnableUI );
		btnRemoveComponent.setEnabled( bEnableUI );
		btnAddComponent.setEnabled( bEnableUI );
		cmbComponentTypes.setEnabled( bEnableUI );
		lblPrefix.setEnabled( bEnableUI );
		lblSuffix.setEnabled( bEnableUI );
		lblSeparator.setEnabled( bEnableUI );
		txtPrefix.setEnabled( bEnableUI );
		txtSuffix.setEnabled( bEnableUI );
		txtSeparator.setEnabled( bEnableUI );
	}
	private void createDataPointArea( Composite parent )
	{
		
		grpDataPoint = new Group( parent, SWT.NONE );
		{
			GridData gdCMPDataPoint = new GridData( GridData.FILL_BOTH );
			gdCMPDataPoint.heightHint = 160;
			grpDataPoint.setLayoutData( gdCMPDataPoint );
			GridLayout glCMPDataPoint = new GridLayout( );
			glCMPDataPoint.numColumns = 4;
			glCMPDataPoint.horizontalSpacing = 4;
			glCMPDataPoint.marginHeight = 2;
			glCMPDataPoint.marginWidth = 2;
			grpDataPoint.setLayout( glCMPDataPoint );
			grpDataPoint.setText( Messages.getString( "SeriesLabelSheet.Label.Values" ) ); 
		}