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.ui/src/org/eclipse/birt/report/designer/internal/ui/editors/schematic/editparts/ReportElementEditPart.java
* 
	 * @see org.eclipse.birt.report.designer.core.model.IModelAdaptHelper#getPreferredSize()
	 */
	public Dimension getPreferredSize( )
	{
		Dimension size = getFigure( ).getSize( ).getCopy( );
		return size;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.designer.core.model.IModelAdaptHelper#getInsets()
	 */
	public Insets getInsets( )
	{
		return new Insets( getFigure( ).getInsets( ) );
	}
	protected ReportItemtHandleAdapter getReportElementHandleAdapt( )
	{
		return (ReportItemtHandleAdapter) getModelAdapter( );
	}
	protected void refreshPageClip( )
	{
		if ( getFigure( ) instanceof ReportElementFigure )
		{
			Object obj = getViewer( ).getProperty( DeferredGraphicalViewer.LAYOUT_SIZE );
			if ( obj instanceof Rectangle )
			{
				( (ReportElementFigure) getFigure( ) ).setPageClip( (Rectangle) obj );
			}