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; }
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(); }