Handles when a card item is double clicked on.
        
        :param      item | <QTreeWidgetItem>

def handleCardDblClick( self, item ):
        """
        Handles when a card item is double clicked on.
        
        :param      item | <QTreeWidgetItem>
        """
        widget = self.uiCardTREE.itemWidget(item, 0)
        if ( isinstance(widget, XAbstractCardWidget) ):
            self.emitRecordDoubleClicked(widget.record())