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
Listener
{
	private transient Composite cmpContent = null;
	private transient Group grpDataPoint = null;
	private transient List lstComponents = null;
	private transient Combo cmbComponentTypes = null;
	private transient Button btnAddComponent = null;
	private transient Button btnRemoveComponent = null;
	private transient Button btnFormatSpecifier = null;
	private transient TextEditorComposite txtPrefix = null;
	private transient TextEditorComposite txtSuffix = null;
	private transient TextEditorComposite txtSeparator = null;
	private transient LineAttributesComposite liacOutline = null;
	private transient InsetsComposite icInsets = null;
	private transient SeriesDefinition seriesDefn = null;
	private transient Label lblPosition;
	private transient Combo cmbPosition;
	private transient Label lblFont;
	private transient FontDefinitionComposite fdcFont;
	private transient Label lblFill;
	private transient FillChooserComposite fccBackground;
	private transient Label lblShadow;
	private transient FillChooserComposite fccShadow;
	private transient Group grpAttributes;
	private transient Label lblPrefix;
	private transient Label lblSuffix;
	private transient Label lblSeparator;
	private transient Group grpOutline;
	private transient ChartWizardContext context;