Bug 313459 Problem with % when generating images in tables.
See the attached BirtProject, it has two reports. Each identical except for this difference: The image width/height is set to a %age value (50%) in one (TestImage.rptdesign) and not-set in the other (TestImageWorking.rptdesign). TestImage.rptdesign does not display the image in pdf, but works fine in html. TestImageWorking.rptdesign shows the image in both pdf and html. The %age setting seems to cause the problem in pdf format.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/nLayout/area/impl/ImageAreaLayout.java
}
			
			if ( content instanceof ObjectContent )
			{
				ObjectContent object = (ObjectContent) content;
				area.setParameters( object.getParamters( ) );
			}
			area.setAction( content.getHyperlinkAction( ) );
			return area;
		}
		private BlockTextArea createInnerTextLayout( )
		{
			IReportContent report = image.getReportContent( );
			if ( report == null )
			{
				return null;
			}
			ITextContent promptTextContent = report.createTextContent( image );
			ULocale locale = ULocale.forLocale( context.getLocale( ) );
			if ( locale == null )
			{
				locale = ULocale.getDefault( );
			}
			EngineResourceHandle resourceHandle = new EngineResourceHandle(
					locale );
			String prompt = resourceHandle
					.getMessage( MessageConstants.UPDATE_USER_AGENT_PROMPT );
			promptTextContent.setText( prompt );
			return new BlockTextArea( root, context, promptTextContent );
		}