Frameless QChart in QChartview not possible?

Hello everybody,

Sorry for that longer piece of code, but I read ALL the internet. Nothing helpful so far.

Code:

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MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow){
 
    // hide unnecessary things
    ui->setupUi(this);
    ui->mainToolBar->hide();
    ui->statusBar->hide();
 
 
    // create central widget and layout
    QWidget *mainWidget = new QWidget(this);
    QVBoxLayout *mainLayout = new QVBoxLayout(mainWidget);
    setCentralWidget(mainWidget);
 
 
    // create a splitter and two colorfull dummies
    QSplitter *splitter = new QSplitter(this);
 
    QWidget *dummy1 = new QWidget(this);
    QWidget *dummy2 = new QWidget(this);
    dummy1->setStyleSheet("background-color: rgb(255, 100, 100)");
    dummy2->setStyleSheet("background-color: rgb(100, 100, 255)");
    dummy1->setMinimumSize(100,100);
    dummy2->setMinimumSize(100,100);
 
    // create a chart in a chartview
    chart = new QChart();
    chart->setMinimumSize(800, 600);
    chart->setBackgroundBrush(QBrush(QColor(Qt::yellow)));
    chartView = new QChartView(chart);
 
    // add all to splitter
    splitter->addWidget(dummy1);
    splitter->addWidget(chartView);
    splitter->addWidget(dummy2);
    splitter->setSizes(QList<int>() << 200 << 200 << 200);
 
 
    // remove contentMargins
    chart       -> setContentsMargins(0,0,0,0);
    chartView   -> setContentsMargins(0,0,0,0);
    splitter    -> setContentsMargins(0,0,0,0);
    mainLayout  -> setContentsMargins(0,0,0,0);
 
    // output
    mainLayout->addWidget(splitter);
}

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... gives me two frameless colorbars and a chart wich is not frameless at all.

Attachment 13115



The splitter-handles are configurable. Any ideas?

Cheers, Lars