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#include <QtGui/QApplication>
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#include <QMainWindow>
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#include <qchartglobal.h>
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#include <qchartview.h>
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#include <qpieseries.h>
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#include <qpieslice.h>
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#include <QGridLayout>
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#include <QFormLayout>
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#include <QComboBox>
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#include <QSpinBox>
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#include <QCheckBox>
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#include <QGroupBox>
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#include <QLabel>
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#include <QTime>
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#include <qlineseries.h>
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#include <qsplineseries.h>
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#include <qscatterseries.h>
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#include <qareaseries.h>
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QTCOMMERCIALCHART_USE_NAMESPACE
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typedef QPair<QPointF, QString> Data;
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typedef QList<Data> DataList;
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typedef QList<DataList> DataTable;
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class MainWidget : public QWidget
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{
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Q_OBJECT
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public:
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explicit MainWidget(QWidget* parent = 0)
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:QWidget(parent)
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{
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// set seed for random stuff
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qsrand(QTime(0,0,0).secsTo(QTime::currentTime()));
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// generate random data
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int listCount = 3;
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int valueMax = 100;
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int valueCount = 50;
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for (int i(0); i < listCount; i++) {
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DataList dataList;
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for (int j(0); j < valueCount; j++) {
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QPointF value(j + (qreal) rand() / (qreal) RAND_MAX, qrand() % valueMax);
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QString label = QString::number(i) + ":" + QString::number(j);
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dataList << Data(value, label);
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}
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m_dataTable << dataList;
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}
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// create layout
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QGridLayout* baseLayout = new QGridLayout();
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// theme combo
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m_themeComboBox = new QComboBox();
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m_themeComboBox->addItem("Default", QChart::ChartThemeDefault);
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m_themeComboBox->addItem("Vanilla", QChart::ChartThemeVanilla);
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m_themeComboBox->addItem("Icy", QChart::ChartThemeIcy);
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m_themeComboBox->addItem("Grayscale", QChart::ChartThemeGrayscale);
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m_themeComboBox->addItem("Scientific", QChart::ChartThemeScientific);
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connect(m_themeComboBox, SIGNAL(currentIndexChanged(int)), this ,SLOT(updateTheme()));
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baseLayout->addWidget(new QLabel("Theme:"), 0, 0);
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baseLayout->addWidget(m_themeComboBox, 0, 1);
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// area chart
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QChartView *chart = new QChartView();
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chart->setChartTitle("Area chart");
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chart->setRenderHint(QPainter::Antialiasing);
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baseLayout->addWidget(chart, 1, 0);
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{
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QLineSeries *series1 = new QLineSeries(chart);
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foreach (Data data, m_dataTable.first())
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series1->add(data.first);
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QLineSeries *series2 = new QLineSeries(chart);
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foreach (Data data, m_dataTable.last())
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series2->add(data.first);
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QAreaSeries *series = new QAreaSeries(series1, series2);
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chart->addSeries(series);
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}
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m_charts << chart;
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// bar chart
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chart = new QChartView();
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chart->setChartTitle("bar chart");
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chart->setRenderHint(QPainter::Antialiasing);
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baseLayout->addWidget(chart, 1, 1);
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m_charts << chart;
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// line chart
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chart = new QChartView();
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chart->setChartTitle("line chart");
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chart->setRenderHint(QPainter::Antialiasing);
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baseLayout->addWidget(chart, 1, 2);
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foreach (DataList list, m_dataTable) {
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QLineSeries *series = new QLineSeries(chart);
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foreach (Data data, list)
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series->add(data.first);
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chart->addSeries(series);
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}
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m_charts << chart;
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// pie chart
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chart = new QChartView();
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chart->setChartTitle("pie chart");
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chart->setRenderHint(QPainter::Antialiasing);
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baseLayout->addWidget(chart, 2, 0);
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qreal pieSize = 1.0 / m_dataTable.count();
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for (int i=0; i<m_dataTable.count(); i++) {
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QPieSeries *series = new QPieSeries(chart);
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foreach (Data data, m_dataTable[i])
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series->add(data.first.y(), data.second);
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qreal hPos = (pieSize / 2) + (i / (qreal) m_dataTable.count());
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series->setPieSize(pieSize);
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series->setPiePosition(hPos, 0.5);
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chart->addSeries(series);
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}
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m_charts << chart;
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// spine chart
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chart = new QChartView();
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chart->setChartTitle("spline chart");
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chart->setRenderHint(QPainter::Antialiasing);
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baseLayout->addWidget(chart, 2, 1);
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foreach (DataList list, m_dataTable) {
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QSplineSeries *series = new QSplineSeries(chart);
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foreach (Data data, list)
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series->add(data.first);
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chart->addSeries(series);
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}
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m_charts << chart;
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// scatter chart
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chart = new QChartView();
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chart->setChartTitle("scatter chart");
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chart->setRenderHint(QPainter::Antialiasing);
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baseLayout->addWidget(chart, 2, 2);
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foreach (DataList list, m_dataTable) {
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QScatterSeries *series = new QScatterSeries(chart);
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foreach (Data data, list)
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series->add(data.first);
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chart->addSeries(series);
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}
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m_charts << chart;
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setLayout(baseLayout);
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}
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public Q_SLOTS:
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void updateTheme()
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{
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QChart::ChartTheme theme = (QChart::ChartTheme) m_themeComboBox->itemData(m_themeComboBox->currentIndex()).toInt();
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foreach (QChartView *chart, m_charts)
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chart->setChartTheme(theme);
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}
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private:
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QList<QChartView*> m_charts;
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QComboBox *m_themeComboBox;
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DataTable m_dataTable;
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};
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int main(int argc, char *argv[])
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{
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QApplication a(argc, argv);
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QMainWindow window;
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MainWidget* widget = new MainWidget();
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window.setCentralWidget(widget);
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window.resize(900, 600);
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window.show();
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return a.exec();
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}
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#include "main.moc"
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