Bug 139110 GUI enhancement to support create subquery more conveniently.
Description: GUI enhancement to support create subquery more conveniently. Steps to reproduce: Subquery means insert table/list inside another table/list item, and the inner table/list item doesn't has its own dataset binding. In latest build, if you want to creat a subquery structure, you have to use dataSetRow as binding expression for data items in inner table/list item. For example: 1. Insert a list, generate column data binding for it. 2. Add a group for the list. 3. Insert table to list group header which is used to display data rows in list group. Dont' bind table to dataset. 4. Insert a data to table detail row. 5. New a binding column for data, click to Open Expression Builder. The issue is that only "Availabel column bindings" is listed in Category but no "Available Data Sets". So I have to type dataSetRow[".."] by myself to generate correct subquery. For users, maybe they will mistakenly use "Available column bindings" which will generate expression like row._outer[".."] and get wrong result. So it is recommended to add "Available Data Sets" in Expression Builder for such case.
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DEUtil.java
{
		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;
	}
	/**
	 * Get the handle's font size 's string value. if the font size is relative,
	 * calculate the actual size according to its parent.
	 *