Bug 146790 Help text/help text key for cascading parameter group is not supported
Steps to reproduce: 1.New a cascading parameter group 2.Switch to Properties, select the cascading parameter group 3.Set help text to "helpme" 4.Preview Expected result: Help text appears when hovering over the cascading parameter group name in Parameter input dialog Actual result: Help text/help text key is not supported
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/BirtViewerReportService.java
IParameterGroupDefn engineParam, IGetParameterDefinitionTask task )
	{
		boolean cascade = engineParam instanceof ICascadingParameterGroup;
		ParameterGroupDefinition paramGroup = new ParameterGroupDefinition(
				engineParam.getName( ), engineParam.getDisplayName( ),
				engineParam.getPromptText( ), null, cascade );
		List contents = convertParametersInGroup( engineParam.getContents( ),
				paramGroup, task );
		paramGroup.setParameters( contents );
		return paramGroup;
	}
	private static ParameterDefinition convertScalarParameter(
			IScalarParameterDefn engineParam, ParameterGroupDefinition group,
			IGetParameterDefinitionTask task )
	{
		Object handle = engineParam.getHandle( );
		ScalarParameterHandle scalarParamHandle = null;
		if ( handle instanceof ScalarParameterHandle )
			scalarParamHandle = (ScalarParameterHandle) handle;
		String name = engineParam.getName( );
		String pattern = scalarParamHandle == null ? "" : scalarParamHandle 
				.getPattern( );
		String displayFormat = engineParam.getDisplayFormat( );
		String displayName = engineParam.getDisplayName( );
		String helpText = engineParam.getHelpText( );
		String promptText = engineParam.getPromptText( );
		int dataType = engineParam.getDataType( );
		int controlType = engineParam.getControlType( );
		boolean hidden = engineParam.isHidden( );
		boolean allowNull = engineParam.allowNull( );