How to remove default blue selection of QTreeWidget?

Question

I have a QTreeWidget with rows having some colors. When I try to select row (using mouse click) row's color changes to blue.

I have clicked on middle row
To avoid change in color, I used following property of QTreeWidget

ui->treeWidget->setSelectionMode(QAbstractItemView::NoSelection);

After adding this, color changing issue was solved.

(I have clicked on middle row )

But because of this, another issue came up. By adding

ui->treeWidget->setSelectionMode(QAbstractItemView::NoSelection);

which means, there will not be any selection. And due to this, on Right mouse click, I have some options ( copy text , copy hierarichal path etc ) are not working. (Because row is not getting selected )

How to solve above problem ?

Here is my code :

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    CreateActions();
    CreateRightClickMenu();
    InitializeTree();
    displayTree();
}        

void MainWindow::displayTree()
{

    ui->treeWidget->setColumnCount(4);
    QStringList labels;
    labels << "Instance" << "Domains" << "Model" <<"Model Type";
    ui->treeWidget->setHeaderLabels(labels);
    ui->treeWidget->setSelectionMode(QAbstractItemView::NoSelection);
    QTreeWidgetItem* root = new QTreeWidgetItem(ui->treeWidget);

    root->setText(0,"top");
    root->setText(2,"top");
    root->setText(3,"Module");

    ui->treeWidget->addTopLevelItem(root);
    QTreeWidgetItem* child1 = new QTreeWidgetItem();
    child1->setText(0,"U1");
    child1->setText(1,"PD1");
    child1->setText(2,"lvds_system");
    child1->setText(3,"Module");

    root->addChild(child1);

    // adding more data in tree same as above
}

 void MainWindow:: CreateAction()
    {
        _copy= new QAction("Copy", this);
        // some other options       
        connect(_copy, SIGNAL(triggered()), this, SLOT(CopyName()));      
               
       QList<QAction *> actions;
       actions.append(_copy);
       //some other actions is added         
           
       addActions(actions); 
    }
               
    void MainWindow:: CreateRightClickMenu()
    {
          _rightClickMenu = new QMenu(this);
          _rightClickMenu->addAction(_copy);
    }             
      
      
void MainWindow::InitializTree()
{
     ui->treeWidget->setContextMenuPolicy(Qt::CustomContextMenu);       
     // some layout code 
} 

    

MainWindow.h

   QMenu* _rightClickMenu;
   QAction* _copy;            
  
CopyName()
{
    const QList<QTreeWidgetItem*>& select = tree->selectedItems();
    if (select.size() > 0) {
        QTreeWidgetItem* item = select.at(0);
        // operation on item
}