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/util/UIUtil.java
if ( string != null
				&& string.length( ) >= 2
				&& string.startsWith( "\"" )
				&& string.endsWith( "\"" ) )
		{
			return string.substring( 1, string.length( ) - 1 );
		}
		return string;
	}
	/**
	 * Returns the maxinum length in pixels of given strings in a control.
	 * 
	 * @return the length in pixels
	 */
	public static int getMaxStringWidth( String[] strArray, Control control )
	{
		int maxWidth = 0;
		for ( int i = 0; i < strArray.length; i++ )
		{
			int width = getStringWidth( strArray[i], control );
			maxWidth = maxWidth >= width ? maxWidth : width;
		}
		return maxWidth;
	}
	/**
	 * Returns if current active editor is reportEditor.
	 * 
	 * @return true if current active editor is reportEditor, or false else.
	 */
	public static boolean isReportEditorActivated( )