Bug 146159 [Regression]Changing font operation doesn't work other than the first time
Description: The first time changing operation can work well. However, Change it again, it won't work. Steps: 1.Insert lable/text to layout or master page 2.Change the font from serif to cursive, it works well 3.Change the font again Result: The action doesn't work Additional infor: build number:200606080632
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DEUtil.java
StringBuffer s = new StringBuffer( 100 );
			for ( int i = 0; i < quotient; i++ )
			{
				s.append( defaultDecs );
			}
			s.append( defaultDecs.substring( 0, remainder ) );
			decStr = s.toString( );
		}
		return decStr;
	}
	/**
	 * @param transferSource
	 * @return true if parameter is parameter group.
	 */
	public static boolean isParameterGroup( Object transferSource )
	{
		return ( transferSource instanceof IDesignElement && ( (IDesignElement) transferSource )
				.getDefn( ).getName( ).equals(
						ReportDesignConstants.PARAMETER_GROUP_ELEMENT ) );
	}
	/**
	 * @return Alphabetically sortted styles list.
	 */
	public static Iterator getStyles( )
	{
		return getStyles( new AlphabeticallyComparator( ) );
	}
	/**
	 * @param comparator
	 * @return return styles list sortted with given comparator.