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
* Map GUI defined property key to DE defined property key
	 * 
	 * @param key
	 * @return DE defined property key
	 */
	public static String getGUIPropertyKey( String key )
	{
		if ( key != null )
		{
			return (String) propertiesMap.get( key );
		}
		return null;
	}
	/**
	 * Transform other units to pixel.
	 * 
	 * @param handle
	 *            DimensionHandle of model to keep the measure and units.
	 * @return The pixel value.
	 */
	public static double convertoToPixel( Object handle )
	{
		return convertToPixel( handle, 0 );
	}
	/**
	 * Transform other units to pixel.
	 * 
	 * @param object
	 *            model to keep the measure and units.
	 * @param fontSize