Method MainWindow

examples/NoValues/mainwindow.cpp:81–113

};

MainWindow::MainWindow(QWidget *parent)
    : QWidget(parent)
{
    auto *chartLayout = new QHBoxLayout(this);
    m_chart = new Chart();
    m_chart->setGlobalLeading(5, 5, 5, 5);
    chartLayout->addWidget(m_chart);

    m_model = new EmptyModel(this); // model contains no data at all

    // Set up the diagram
    m_bars = new LineDiagram();
    m_bars->setModel(m_model);
    auto *xAxis = new CartesianAxis(m_bars);
    auto *yAxis = new CartesianAxis(m_bars);
    xAxis->setPosition(KDChart::CartesianAxis::Bottom);
    yAxis->setPosition(KDChart::CartesianAxis::Left);
    xAxis->setTitleText("Abscissa axis at the bottom");
    yAxis->setTitleText("Ordinate axis at the left side");
    m_bars->addAxis(xAxis);
    m_bars->addAxis(yAxis);

    m_chart->coordinatePlane()->replaceDiagram(m_bars);

    auto *legend = new Legend(m_bars, m_chart);
    legend->setPosition(Position::South);
    legend->setAlignment(Qt::AlignCenter);
    legend->setShowLines(true);
    legend->setTitleText("This is the legend - showing no data either");
    legend->setOrientation(Qt::Horizontal);
    legend->addDiagram(m_bars);
    m_chart->addLegend(legend);
}