Bug 123736 Underline, linethrough, overline doesn't work for chart font.
Description: Underline, linethrough, overline doesn't work for chart font. Steps to teproduce: 1. Add a style, set its font. 2. Tick "underline", "linethrough" and "overline". 3. Preview. Font setting doesn't work.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/factory/Generator.java
else
			{
				FontDefinition newFont = style.getFont( );
				FontDefinition font = text.getFont( );
				ChartUtil.mergeFont( font, newFont );
			}
			if ( text.getColor( ) == null )
			{
				text.setColor( style.getColor( ) );
			}
		}
	}
	private IStyle getMingledStyle( Chart model, StyledComponent type,
			IStyleProcessor externalProcessor )
	{
		SimpleContainer rStyle = new SimpleContainer( );
		if ( externalProcessor != null )
		{
			while ( !updateHierarchyStyle( model,
					type,
					externalProcessor,
					rStyle )
					&& type != null )
			{
				type = getParentType( type );
			}
		}
		while ( !updateHierarchyStyle( model, type, implicitProcessor, rStyle )
				&& type != null )
		{