Russian Qt Forum

#include <QApplication>
#include <QMainWindow>
#include <QAction>
#include <QMenu>
#include <QMenuBar>
#include <QDockWidget>
#include <QTextEdit>

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    MainWindow()
    {
        QTextEdit *te = new QTextEdit;
        te->setTabChangesFocus(true);
        setCentralWidget(te);

        QAction *exitAct = new QAction(tr("E&xit"), this);
        exitAct->setShortcut(tr("Ctrl+Q"));
        connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));
        QMenu *fileMenu = new QMenu(tr("&File"), this);
        fileMenu->addAction(exitAct);
        menuBar()->addMenu(fileMenu);

        QTextEdit *te1 = new QTextEdit;
        te1->setTabChangesFocus(true);
        QDockWidget *dw1 = new QDockWidget(tr("dw1"), this);
        dw1->setWidget(te1);
        addDockWidget(Qt::RightDockWidgetArea, dw1);

        QTextEdit *te2 = new QTextEdit;
        te2->setTabChangesFocus(true);
        QDockWidget *dw2 = new QDockWidget(tr("dw2"), this);
        dw2->setWidget(te2);
        tabifyDockWidget(dw1, dw2);

        setWindowTitle(tr("Test Focus"));
        resize(600, 400);
    }

};

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    MainWindow window;
    window.show();
    return app.exec();
}

#include "main.moc"

void DockWidgetEx::onVisibilityChanged(bool visible)
{
  setEnabled(visible);
}