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
cmbPosition.setLayoutData( gdCMBPosition );
		cmbPosition.addSelectionListener( this );
		lblFont = new Label( grpAttributes, SWT.NONE );
		GridData gdLFont = new GridData( );
		lblFont.setLayoutData( gdLFont );
		lblFont.setText( Messages.getString( "LabelAttributesComposite.Lbl.Font" ) ); 
		fdcFont = new FontDefinitionComposite( grpAttributes,
				SWT.NONE,
				getContext( ),
				getSeriesForProcessing( ).getLabel( ).getCaption( ).getFont( ),
				getSeriesForProcessing( ).getLabel( ).getCaption( ).getColor( ),
				false );
		GridData gdFDCFont = new GridData( GridData.FILL_BOTH );
		gdFDCFont.heightHint = fdcFont.getPreferredSize( ).y;
		gdFDCFont.widthHint = 96;
		gdFDCFont.grabExcessVerticalSpace = false;
		fdcFont.setLayoutData( gdFDCFont );
		fdcFont.addListener( this );
		lblFill = new Label( grpAttributes, SWT.NONE );
		GridData gdLFill = new GridData( );
		lblFill.setLayoutData( gdLFill );
		lblFill.setText( Messages.getString( "LabelAttributesComposite.Lbl.Background" ) ); 
		fccBackground = new FillChooserComposite( grpAttributes,
				SWT.NONE,
				getContext( ),
				getSeriesForProcessing( ).getLabel( ).getBackground( ),
				false,
				false );
		GridData gdFCCBackground = new GridData( GridData.FILL_BOTH );
		gdFCCBackground.heightHint = fccBackground.getPreferredSize( ).y;