Bug 120503 Cascading Parameter can not drop into layout
Details: Cascading Parameter can not drop into layout Step: 1.Open a report design and Create a Sample Data Source and data set by "select * from CLASSICMODELS.CUSTOMERS" 2.New a cascading parameter and create CUSTOMERSNUMBER and CUSTOMERSNAME in parameter named number and name. Press OK 3.Drop parameter name into layout. Actual results: The parameter in Cascading Parameter Group can not drop to layout
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DEUtil.java
* @param fontSize
	 * @return
	 */
	public static int getFontSize( String fontSize )
	{
		if ( DesignChoiceConstants.FONT_SIZE_LARGER.equals( fontSize ) )
		{
			fontSize = DesignChoiceConstants.FONT_SIZE_LARGE;
		}
		else if ( DesignChoiceConstants.FONT_SIZE_SMALLER.equals( fontSize ) )
		{
			fontSize = DesignChoiceConstants.FONT_SIZE_SMALL;
		}
		else if ( fontSize == null )
		{
			fontSize = DesignChoiceConstants.FONT_SIZE_MEDIUM;
		}
		String rt = (String) DesignerConstants.fontMap.get( fontSize );
		if ( rt != null )
		{
			return Integer.parseInt( rt );
		}
		String[] sp = DEUtil.splitString( fontSize );
		if ( sp[0] != null && DEUtil.isValidNumber( sp[0] ) )
		{
			return (int) CSSUtil.convertToPoint( new DimensionValue( Double
					.parseDouble( sp[0] ), sp[1] ) );
		}
		return 10;
	}