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/ui/dialogs/HighlightRuleBuilder.java
handle.getBackgroundColor( ).setValue( null );
				}
				if ( isItalicChanged )
				{
					handle.setFontStyle( italicValue );
				}
				if ( isBoldChanged )
				{
					handle.setFontWeight( weightValue );
				}
				if ( isUnderlineChanged )
				{
					handle.setTextUnderline( underlineValue );
				}
				if ( isLinethroughChanged )
				{
					handle.setTextLineThrough( lingthroughValue );
				}
				
				handle.setTestExpression( DEUtil.resolveNull( expression.getText( ) ) );
			}
		}
		catch ( Exception e )
		{
			WidgetUtil.processError( getShell( ), e );
		}
		super.okPressed( );
	}
	private void editValue( Control control )
	{