Create context menu when right-click on header of QTreeWidget

Please_Help_me_D

Hi,

I'm trying to write a code that shows me context menu when I press right-click on header of QTreeWidget but I only could do that for non-header area of that widget.

I use the code in mainwindow.cpp (here of course part of this file):

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    ui->treeWidget_seismic->setColumnCount(1);

    /* Context menu*/
    connect(ui->treeWidget_seismic, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(slotCustomMenuRequested(QPoint)));
}

/* Context menu*/
void MainWindow::slotCustomMenuRequested(QPoint pos)
{
    QModelIndex index = ui->treeWidget_seismic->indexAt(pos);
    QTreeWidgetItem* item = ui->treeWidget_seismic->currentItem();

    menu = new QMenu(this);
    QAction *myAction = menu->addAction("Action 1");
    menu->popup(ui->treeWidget_seismic->viewport()->mapToGlobal(pos));

    connect(myAction, SIGNAL(triggered()), this, SLOT(slotAddH5File()));
}

void MainWindow::slotAddH5File()
{
    QString fileName = QFileDialog::getOpenFileName(this, tr("Open Project"),
                                                    QDir::homePath(),
                                                    tr("Project file (*.prj)"));
}

mrjj

Hi
Its not Treewidget but a QHeaderView (up there)

So its

    auto widget = ui->treeWidget->header();
    widget->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(widget,&QTreeWidget::customContextMenuRequested,this,&MainWindow::slotCustomMenuRequested); // use new syntax for more joy

void MainWindow::slotCustomMenuRequested(QPoint pos)
{

    QMenu *menu = new QMenu(this);
    menu->addAction(new QAction("Action 1", this));
    menu->addAction(new QAction("Action 2", this));
    menu->addAction(new QAction("Action 3", this));
    menu->popup(ui->treeWidget->header()->mapToGlobal(pos));
}

alt text

Please_Help_me_D

@mrjj Thank you!
Is there a way of control wether to invoke context menu after right-click or double click (or left click)?

mrjj

@Please_Help_me_D

Hi
The default context menu is only for right-click, but its quite easy to make your own subclass of QHeaderView
and overwrite mousePress/dbclick and use show menu as you want.
Or emit a new signal so you can respond in another widget and show different menus easy/pr use case.

Please_Help_me_D

@mrjj ok!
Good to know it
Thank you

aha_1980

@Please_Help_me_D said in Create context menu when right-click on header of QTreeWidget:

@mrjj Thank you!
Is there a way of control wether to invoke context menu after right-click or double click (or left click)?

Context menu should only be displayed on right click. Otherwise your app will confuse your users ;)

Right click is simply the convention.

Regards