Display Filesystem Using QFileSystemModel & QStandardItemModel

[owais_blore]

I had asked the question about displaying Filesystem inside a treeview in such a way where local drives and removable drive get displayed under a root node - Local Drivess & Removable Drives.

QStandardItemModel *m_model = new QStandardItemModel(0,0);
    pSystemPrimaryModel = new QFileSystemModel(this);    
    pSystemPrimaryModel->setRootPath(QDir::currentPath());
    pSystemPrimaryModel->setFilter( QDir::AllDirs | QDir::NoDotAndDotDot ); 
 
    QList<QStandardItem *> LocalItem;
    LocalItem.insert(0,new QStandardItem("Local Drives"));
    LocalItem.at(0)->setEditable(false);
    m_model->insertRow(0,LocalItem);
 
    QStandardItem* Localchild = new QStandardItem();
    QStandardItem* LocalparentItem = m_model->item(0,0);
    LocalparentItem->appendRow(Localchild);   
 
    ui->PrimTreeView->setModel(m_model);

QStandardItemModel *m_model = new QStandardItemModel(0,0);
    pSystemPrimaryModel = new QFileSystemModel(this);    
    pSystemPrimaryModel->setRootPath(QDir::currentPath());
    pSystemPrimaryModel->setFilter( QDir::AllDirs | QDir::NoDotAndDotDot ); 

    QList<QStandardItem *> LocalItem;
    LocalItem.insert(0,new QStandardItem("Local Drives"));
    LocalItem.at(0)->setEditable(false);
    m_model->insertRow(0,LocalItem);

    QStandardItem* Localchild = new QStandardItem();
    QStandardItem* LocalparentItem = m_model->item(0,0);
    LocalparentItem->appendRow(Localchild);   

    ui->PrimTreeView->setModel(m_model);

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This displays output with only Local Drives and no drives under it since I am not setting pSystemPrimaryModel in setModel.
untitled.JPG
I wanna display the drives which are shown towards the bottom side of image under this "Local Drives" node which QFileSystemModel displays when used like this:

pSystemPrimaryModel = new QFileSystemModel(this);    
    pSystemPrimaryModel->setRootPath(QDir::currentPath());
    ui->PrimTreeView->setModel(pSystemPrimaryModel);

pSystemPrimaryModel = new QFileSystemModel(this);    
    pSystemPrimaryModel->setRootPath(QDir::currentPath());
    ui->PrimTreeView->setModel(pSystemPrimaryModel);

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