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/layout/pdf/util/PropertyUtil.java
}
		return 0;
	}
	public static int getImageDimensionValue( IContent content,
			DimensionType d, int renderOptionDpi, int referenceLength )
	{
		if ( d == null )
		{
			return -1;
		}
		try
		{
			return _getDimensionValue( content, d, renderOptionDpi, referenceLength );
		}
		catch ( Exception e )
		{
			logger.log( Level.WARNING, e.getLocalizedMessage( ) );
			return -1;
		}
	}
	public static int getDimensionValue( IContent content, DimensionType d,
			int dpi, int referenceLength )
	{
		if ( d == null )
		{
			return 0;
		}
		try
		{
			return _getDimensionValue( content, d, dpi, referenceLength );