QDirModel - add own items

[heinz32]

ok now i subclassed QDirModel::data and QDirModel::rowCount as following:

int MyDirModel::rowCount(const QModelIndex & parent)const
{   
	if(parent == QModelIndex())
	 return QDirModel::rowCount(parent) + 1;
 
return QDirModel::rowCount(parent);
}
 
QVariant MyDirModel::data(const QModelIndex & index, int role)const
{
	if(index.row() == (QDirModel::rowCount(QModelIndex()) + 1))
	{
		if(role == Qt::DisplayRole)
		 return QString(tr("bla"));
 
		if(role == Qt::DecorationRole)
		 return iconProvider()->icon(QFileIconProvider::Desktop);
 
	return QVariant();
	}
 
return QDirModel::data(index, role);
}

int MyDirModel::rowCount(const QModelIndex & parent)const
{   
	if(parent == QModelIndex())
	 return QDirModel::rowCount(parent) + 1;

return QDirModel::rowCount(parent);
}

QVariant MyDirModel::data(const QModelIndex & index, int role)const
{
	if(index.row() == (QDirModel::rowCount(QModelIndex()) + 1))
	{
		if(role == Qt::DisplayRole)
		 return QString(tr("bla"));
    
		if(role == Qt::DecorationRole)
		 return iconProvider()->icon(QFileIconProvider::Desktop);
    
	return QVariant();
	}

return QDirModel::data(index, role);
}

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it does work, however i cannot add an item at the toplevel, only as subentries of other items... I use a treeview to display this, how can i get my item as a toplevel?

edit: the problem seems to be: rowcount isnt called at toplevel
edit 2: it is called... why doesnt it show my additional item then ((