Method MainWindow

examples/Lines/Advanced/mainwindow.cpp:24–61

using namespace KDChart;

MainWindow::MainWindow(QWidget *parent)
    : QWidget(parent)
{
    setupUi(this);

    m_curColumn = -1;
    m_curOpacity = 0;

    auto *chartLayout = new QHBoxLayout(chartFrame);
    m_chart = new Chart();
    chartLayout->addWidget(m_chart);

    m_model.loadFromCSV(":/data");

    // Set up the diagram
    m_lines = new LineDiagram(this);
    m_lines->setModel(&m_model);

    auto *xAxis = new CartesianAxis(m_lines);
    auto *yAxis = new CartesianAxis(m_lines);
    xAxis->setPosition(KDChart::CartesianAxis::Bottom);
    yAxis->setPosition(KDChart::CartesianAxis::Left);
    m_lines->addAxis(xAxis);
    m_lines->addAxis(yAxis);

    m_chart->coordinatePlane()->replaceDiagram(m_lines);
    m_chart->setGlobalLeading(20, 20, 20, 20);
    // Instantiate the timer
    auto *timer = new QTimer(this);
    connect(timer, SIGNAL(timeout()), this, SLOT(slot_timerFired()));
    timer->start(30);

    // Change the cursor to IBeamCursor inside Chart widget.
    m_chart->setCursor(Qt::IBeamCursor);

    // Install event filter on Chart to get the mouse position
    m_chart->installEventFilter(this);
}

/**
  Event filter for getting mouse position