void FpsMeter::setupChart() {
// set up axes
QValueAxis* xAxis = new QValueAxis();
xAxis->setMax(CONCURRENT_FPS_VALUES);
xAxis->setVisible(false);
QValueAxis* yAxis = new QValueAxis();
yAxis->setMax(100);
// set up chart
mFpsChart->legend()->hide();
mFpsChart->addSeries(mFpsLineSeries);
mFpsChart->addSeries(mAverageFpsLineSeries);
mFpsChart->setAxisX(xAxis, mFpsLineSeries);
mFpsChart->setAxisY(yAxis, mFpsLineSeries);
mFpsChart->setAxisX(xAxis, mAverageFpsLineSeries);
mFpsChart->setAxisY(yAxis, mAverageFpsLineSeries);
// set up chart view
mFpsChartView = new QChartView(mFpsChart);
mFpsChartView->setRenderHint(QPainter::Antialiasing);
// zero out history and line series to create "valid" starting data
for(int i = 0; i < CONCURRENT_FPS_VALUES; i++) {
mFpsHistory[i] = 0;
mFpsLineSeries->append(i, 0);
}
// create two points in the average fps line series to draw a straight line
mAverageFpsLineSeries->append(0, 0);
mAverageFpsLineSeries->append(CONCURRENT_FPS_VALUES, 0);
// add the chart widget to the layout
layout()->addWidget(mFpsChartView);
// and finally, conform visibility to initial checkbox state
mFpsChartView->setVisible(mEnableCheckBox->isChecked());
}
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]
QBarSet *set0 = new QBarSet("Jane");
QBarSet *set1 = new QBarSet("John");
QBarSet *set2 = new QBarSet("Axel");
QBarSet *set3 = new QBarSet("Mary");
QBarSet *set4 = new QBarSet("Samantha");
*set0 << 1 << 2 << 3 << 4 << 5 << 6;
*set1 << 5 << 0 << 0 << 4 << 0 << 7;
*set2 << 3 << 5 << 8 << 13 << 8 << 5;
*set3 << 5 << 6 << 7 << 3 << 4 << 5;
*set4 << 9 << 7 << 5 << 3 << 1 << 2;
//![1]
//![2]
QHorizontalBarSeries *series = new QHorizontalBarSeries();
series->append(set0);
series->append(set1);
series->append(set2);
series->append(set3);
series->append(set4);
//![2]
//![3]
QChart *chart = new QChart();
chart->addSeries(series);
chart->setTitle("Simple horizontal barchart example");
chart->setAnimationOptions(QChart::SeriesAnimations);
//![3]
//![4]
QStringList categories;
categories << "Jan" << "Feb" << "Mar" << "Apr" << "May" << "Jun";
QBarCategoryAxis *axisY = new QBarCategoryAxis();
axisY->append(categories);
chart->setAxisY(axisY, series);
QValueAxis *axisX = new QValueAxis();
chart->setAxisX(axisX, series);
axisX->applyNiceNumbers();
//![4]
//![5]
chart->legend()->setVisible(true);
chart->legend()->setAlignment(Qt::AlignBottom);
//![5]
//![6]
QChartView *chartView = new QChartView(chart);
chartView->setRenderHint(QPainter::Antialiasing);
//![6]
//![7]
QMainWindow window;
window.setCentralWidget(chartView);
window.resize(420, 300);
window.show();
//![7]
return a.exec();
}
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();
}
