void WidgetTableProgression::updateWithEasing(SystemProgressionTable*
    progression, QChartView *chartView, int finalLevel)
{
    int start = progression->initialValue()->kind() == PrimitiveValueKind
        ::Number ? progression->initialValue()->numberValue() : 0;
    int change = (progression->finalValue()->kind() == PrimitiveValueKind
        ::Number ? progression->finalValue()->numberValue() : 0) - start;
    int duration = finalLevel - 1;
    int value = 0;
    double x;
    bool specificValue;
    QTableWidgetItem *itemLevel, * itemProgression;

    // Chart lines initialization
    deleteLines();
    m_line = new QLineSeries();
    m_horizontalLine = new QLineSeries();
    QVector<QPointF> expList;
    *m_line<< QPointF(0, 0);

    // Update according to equation
    for (int i = 0; i < finalLevel; i++) {
        x = i;
        value = m_table->value(i + 1, -1);
        specificValue = value != -1;
        if (!specificValue) {
            switch (progression->equation()) {
            case 0:
                value = easingLinear(x, start, change, duration); break;
            case -1:
                value = easingQuadraticIn(x, start, change, duration); break;
            case 1:
                value = easingQuadraticOut(x, start, change, duration); break;
            case -2:
                value = easingCubicIn(x, start, change, duration); break;
            case 2:
                value = easingCubicOut(x, start, change, duration); break;
            case -3:
                value = easingQuarticIn(x, start, change, duration); break;
            case 3:
                value = easingQuarticOut(x, start, change, duration); break;
            case -4:
                value = easingQuinticIn(x, start, change, duration); break;
            case 4:
                value = easingQuinticOut(x, start, change, duration); break;
            default:
                value = 0;
            }
        }

        itemLevel = new QTableWidgetItem(QString::number(i + 1));
        itemProgression = new QTableWidgetItem(QString::number(value));
        if (specificValue) {
            itemProgression->setForeground(m_editedColor);
        }

        setItem(i, 0, itemLevel);
        setItem(i, 1, itemProgression);
        *m_line << QPoint(i + 1, value);
    }

    // Chart config
    *m_horizontalLine << QPointF(1, 0) << QPointF(finalLevel, 0);
    QAreaSeries *series = new QAreaSeries(m_line, m_horizontalLine);
    QPen pen(0x4f0a5b);
    pen.setWidth(2);
    series->setPen(pen);
    QLinearGradient gradient(QPointF(0, 0), QPointF(0, 1));
    gradient.setColorAt(0.0, 0x9234a3);
    gradient.setColorAt(1.0, 0x9234a3);
    gradient.setCoordinateMode(QGradient::ObjectBoundingMode);
    series->setBrush(gradient);
    QChart *chart = chartView->chart();
    chart->removeAllSeries();
    chart->addSeries(series);
    chart->createDefaultAxes();
    QValueAxis *axisX = reinterpret_cast<QValueAxis *>(chart->axes(Qt
        ::Horizontal).first());
    QValueAxis *axisY = reinterpret_cast<QValueAxis *>(chart->axes(Qt
        ::Vertical).first());
    axisX->setRange(1, finalLevel);
    axisY->setRange(0, value);
    axisX->setTickCount(5);
    axisX->setLabelFormat("%d");
    axisY->setTickCount(5);
    axisY->setLabelFormat("%d");
    chart->legend()->setVisible(false);
    chartView->setRenderHint(QPainter::Antialiasing);

    m_completing = false;
}
Ejemplo n.º 2
0
QT_CHARTS_USE_NAMESPACE

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    //![1]
    QLineSeries *series = new QLineSeries();
    //![1]

    //![2]
    // data from http://www.swpc.noaa.gov/ftpdir/weekly/RecentIndices.txt
    // http://www.swpc.noaa.gov/ftpdir/weekly/README
    // http://www.weather.gov/disclaimer
    QFile sunSpots(":sun");
    if (!sunSpots.open(QIODevice::ReadOnly | QIODevice::Text)) {
        return 1;
    }

    QTextStream stream(&sunSpots);
    while (!stream.atEnd()) {
        QString line = stream.readLine();
        if (line.startsWith("#") || line.startsWith(":"))
            continue;
        QStringList values = line.split(" ", QString::SkipEmptyParts);
        QDateTime momentInTime;
        momentInTime.setDate(QDate(values[0].toInt(), values[1].toInt() , 15));
        series->append(momentInTime.toMSecsSinceEpoch(), values[2].toDouble());
    }
    sunSpots.close();
    //![2]

    //![3]
    QChart *chart = new QChart();
    chart->addSeries(series);
    chart->legend()->hide();
    chart->setTitle("Sunspots count (by Space Weather Prediction Center)");
    //![3]

    //![4]
    QDateTimeAxis *axisX = new QDateTimeAxis;
    axisX->setTickCount(10);
    axisX->setFormat("MMM yyyy");
    axisX->setTitleText("Date");
    chart->addAxis(axisX, Qt::AlignBottom);
    series->attachAxis(axisX);

    QValueAxis *axisY = new QValueAxis;
    axisY->setLabelFormat("%i");
    axisY->setTitleText("Sunspots count");
    chart->addAxis(axisY, Qt::AlignLeft);
    series->attachAxis(axisY);
    //![4]

    //![5]
    QChartView *chartView = new QChartView(chart);
    chartView->setRenderHint(QPainter::Antialiasing);
    //![5]

    //![6]
    QMainWindow window;
    window.setCentralWidget(chartView);
    window.resize(820, 600);
    window.show();
    //![6]

    return a.exec();
}