QDockWidget: How to let the float widget back to mainwindow when click close button.

brucezcg

How to let the float QDockWidget back to window when click close button.

Gojir4

Hi,

You can do something like that:

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    //...
    ui->setupUi(this);
   connect(ui->dockWidget, &QDockWidget::visibilityChanged, this,  &MainWindow::dockWidgetVisibilityChanged);
    //...
}

void MainWindow::dockWidgetVisibilityChanged(bool visible)
{   
    if(ui->dockWidget->isFloating() && !visible){
        QTimer::singleShot(100, this, &MainWindow::restoreDock);
    }
}

void MainWindow::restoreDock()
{
    ui->dockWidget->setFloating(false);
    ui->dockWidget->setVisible(true);
}

Note that this will not work in case you have enabled GrouppedDragging dockOption in MainWindow and you have a floating windows with several dock tabbed, as the docks are seens as "not floating".

brucezcg

It did work. Great,Thanks.