EXtend functionality of QListWidget by making a plugin and use it in designer?

[Sisyfos]

I changed the dateListView.cpp to the following...BUT i am still not able to edit all the propertys of a QListWidget in Designer.

dateViewList :: dateViewList( QWidget*  parent )
    : QListWidget(parent)
{
}

dateViewList :: dateViewList( QWidget*  parent )
    : QListWidget(parent)
{
}

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So i am wondering is this part right in the customwidgetplugin.cpp

QListWidget *createWidget(QWidget*parent){returnnewdateListWidget()
};

QListWidget *createWidget(QWidget*parent){returnnewdateListWidget()
};

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Or should it be

QWidget* createWidget(QWidget *parent){return new dateListWidget()}

QWidget* createWidget(QWidget *parent){return new dateListWidget()}

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Or even

dateListView* createWidget(QWidget *parent){return new dateListWidget()  }

dateListView* createWidget(QWidget *parent){return new dateListWidget()  }

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