Bug 183146 [SVG] Bubble series label is invisible when its position is inside [0001]
Description: Bubble series label is invisible when its position is inside. Build number: 2.2.0.v20070419-0954 Steps to reproduce: 1. New a bubble chart, output format SVG, set series label visible and position inside. 2. Preview. Expected result: Series labels are shown. Actual result: Series labels are invisible. Error log: N/A
chart/org.eclipse.birt.chart.device.svg/src/org/eclipse/birt/chart/device/svg/SVGTextRenderer.java
*            CENTERED) IS RENDERED
	 * @param la
	 * @throws RenderingException
	 */
	public final void renderTextAtLocation( IPrimitiveRenderer ipr,
			int iLabelPosition, Location lo, Label la ) throws ChartException
	{
		final ColorDefinition cdText = la.getCaption( ).getColor( );
		if ( cdText == null )
		{
			throw new ChartException( ChartDeviceExtensionPlugin.ID,
					ChartException.RENDERING,
					"exception.undefined.text.color", 
					Messages.getResourceBundle( _sxs.getULocale( ) ) );
		}
		final Graphics2D g2d = (Graphics2D) ( (IDeviceRenderer) ipr ).getGraphicsContext( );
		g2d.setFont( (java.awt.Font) _sxs.createFont( la.getCaption( )
				.getFont( ) ) );
		switch ( iLabelPosition )
		{
			case ABOVE :
				if ( ChartUtil.isShadowDefined( la ) )
				{
					showTopValue( ipr, lo, la, true );
				}
				showTopValue( ipr, lo, la, false );
				break;
			case BELOW :
				if ( ChartUtil.isShadowDefined( la ) )
				{