Bug 314088 The table row height does not work correctly in PDF
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/nLayout/area/impl/ContainerArea.java
return (int) point;
			}
			else if ( units.equals( EngineIRConstants.UNITS_EM )
					|| units.equals( EngineIRConstants.UNITS_EX ) )
			{
				int size = 9000;
				if ( content != null )
				{
					IStyle style = content.getComputedStyle( );
					CSSValue fontSize = style
							.getProperty( IStyle.STYLE_FONT_SIZE );
					size = getDimensionValue( fontSize );
				}
				double point = size * d.getMeasure( );
				return (int) point;
			}
		}
		catch ( Exception e )
		{
			logger.log( Level.WARNING, e.getLocalizedMessage( ) );
			return 0;
		}
		return 0;
	}
	protected int getDimensionValue( CSSValue value )
	{
		return getDimensionValue( value, 0 );
	}
	protected int getDimensionValue( CSSValue value, int referenceLength )
	{