Insert QSplitter in QStackedWidget - c++

Question

I have a QStackedWidget with a custom widget in it.
//mainwindow.h
private:
CentralWidget m_centralWidget;
//mainwindow.cpp
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
ui->stackedWidget->addWidget(&m_centralWidget);
}
Now i want to create a QSplitter, fill the Splitter with content and add this Splitter to the StackedWidget.
CentralWidget::CentralWidget(QWidget *parent) :
QWidget(parent),
ui(new Ui::CentralWidget)
{
ui->setupUi(this);
connect(ui->pbAddSplit, SIGNAL(pressed()), this, SLOT(addSplit()));
}
void CentralWidget::addSplit()
{
QWidget* parent = parentWidget();
QStackedWidget* stackedWidget = qobject_cast<QStackedWidget*>(parent);
if(!stackedWidget) {
return;
}
QSplitter* splitter = new QSplitter(Qt::Vertical);
splitter->addWidget(new QLabel("Banana"));
splitter->addWidget(this);
int nIndex = stackedWidget->addWidget(splitter);
stackedWidget->setCurrentIndex(nIndex);
}
The result should be a QLabel("Banana") as one Widget of the splitter and the CentralWidget as the other splitter-widget.
But i just get the QLabel("Banana") - SplitterHandle and the CentralWidget got lost somehow...
splitter->addWidget(this) is obviously wrong...
Replacing it with splitter->addWidget(new QLabel("Cherry")) will result in a correct SplitterWidget...
The problem seems to be the parenting, but i cant figure it out.
Any suggestions would be most welcome!