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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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QTCOMMERCIALCHART_USE_NAMESPACE
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Q_DECLARE_METATYPE(QPieSeries::PiePosition)
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class CustomSlice : public QPieSlice
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{
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Q_OBJECT
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public:
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CustomSlice(qreal value, QString label)
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:QPieSlice(value, label)
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{
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connect(this, SIGNAL(hoverEnter()), this, SLOT(handleHoverEnter()));
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connect(this, SIGNAL(hoverLeave()), this, SLOT(handleHoverLeave()));
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}
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public Q_SLOTS:
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void handleHoverEnter()
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{
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QBrush brush = this->brush();
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m_originalBrush = brush;
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brush.setColor(brush.color().lighter());
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setBrush(brush);
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}
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void handleHoverLeave()
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{
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setBrush(m_originalBrush);
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}
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private:
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QBrush m_originalBrush;
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};
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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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m_chartView = new QChartView();
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m_chartView->setChartTitle("Piechart customization");
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//m_chartView->setRenderHint(QPainter::Antialiasing);
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m_series = new QPieSeries();
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*m_series << new CustomSlice(10.0, "Slice 1");
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*m_series << new CustomSlice(20.0, "Slice 2");
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*m_series << new CustomSlice(30.0, "Slice 3");
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*m_series << new CustomSlice(40.0, "Slice 4");
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*m_series << new CustomSlice(50.0, "Slice 5");
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m_chartView->addSeries(m_series);
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m_vPosition = new QComboBox();
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m_vPosition->addItem("Top", QPieSeries::PiePositionTop);
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m_vPosition->addItem("Bottom", QPieSeries::PiePositionBottom);
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m_vPosition->addItem("Center", QPieSeries::PiePositionVCenter);
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m_hPosition = new QComboBox();
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m_hPosition->addItem("Left", QPieSeries::PiePositionLeft);
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m_hPosition->addItem("Right", QPieSeries::PiePositionRight);
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m_hPosition->addItem("Center", QPieSeries::PiePositionHCenter);
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m_sizePolicy = new QComboBox();
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m_sizePolicy->addItem("Maximized", QPieSeries::PieSizePolicyMaximized);
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m_sizePolicy->addItem("Space for labels", QPieSeries::PieSizePolicyReserveSpaceForLabels);
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m_sizePolicy->addItem("Space for exploding", QPieSeries::PieSizePolicyReserveSpaceForExploding);
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m_sizePolicy->addItem("Space for all", QPieSeries::PieSizePolicyReserveSpaceForAll);
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m_sizeFactor = new QDoubleSpinBox();
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m_sizeFactor->setMinimum(0.0);
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m_sizeFactor->setMaximum(1.0);
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m_sizeFactor->setValue(m_series->sizeFactor());
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m_sizeFactor->setSingleStep(0.1);
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m_startAngle = new QDoubleSpinBox();
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m_startAngle->setMinimum(0.0);
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m_startAngle->setMaximum(360);
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m_startAngle->setValue(m_series->startAngle());
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m_startAngle->setSingleStep(1);
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m_endAngle = new QDoubleSpinBox();
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m_endAngle->setMinimum(0.0);
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m_endAngle->setMaximum(360);
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m_endAngle->setValue(m_series->endAngle());
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m_endAngle->setSingleStep(1);
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QFormLayout* seriesSettingsLayout = new QFormLayout();
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seriesSettingsLayout->addRow("Vertical position", m_vPosition);
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seriesSettingsLayout->addRow("Horizontal position", m_hPosition);
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seriesSettingsLayout->addRow("Size policy", m_sizePolicy);
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seriesSettingsLayout->addRow("Size factor", m_sizeFactor);
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seriesSettingsLayout->addRow("Start angle", m_startAngle);
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seriesSettingsLayout->addRow("End angle", m_endAngle);
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QGroupBox* seriesSettings = new QGroupBox("Series");
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seriesSettings->setLayout(seriesSettingsLayout);
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m_sliceName = new QLabel("<click a slice>");
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m_sliceValue = new QDoubleSpinBox();
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m_sliceValue->setMaximum(1000);
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m_sliceLabelVisible = new QCheckBox();
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m_sliceExploded = new QCheckBox();
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QFormLayout* sliceSettingsLayout = new QFormLayout();
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sliceSettingsLayout->addRow("Selected", m_sliceName);
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sliceSettingsLayout->addRow("Value", m_sliceValue);
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sliceSettingsLayout->addRow("Label visible", m_sliceLabelVisible);
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sliceSettingsLayout->addRow("Exploded", m_sliceExploded);
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QGroupBox* sliceSettings = new QGroupBox("Slice");
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sliceSettings->setLayout(sliceSettingsLayout);
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QGridLayout* baseLayout = new QGridLayout();
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baseLayout->addWidget(seriesSettings, 0, 0);
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baseLayout->addWidget(sliceSettings, 1, 0);
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baseLayout->addWidget(m_chartView, 0, 1, 2, 1);
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setLayout(baseLayout);
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connect(m_vPosition, SIGNAL(currentIndexChanged(int)), this, SLOT(updateSerieSettings()));
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connect(m_hPosition, SIGNAL(currentIndexChanged(int)), this, SLOT(updateSerieSettings()));
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connect(m_sizePolicy, SIGNAL(currentIndexChanged(int)), this, SLOT(updateSerieSettings()));
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connect(m_sizeFactor, SIGNAL(valueChanged(double)), this, SLOT(updateSerieSettings()));
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connect(m_startAngle, SIGNAL(valueChanged(double)), this, SLOT(updateSerieSettings()));
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connect(m_endAngle, SIGNAL(valueChanged(double)), this, SLOT(updateSerieSettings()));
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connect(m_sliceValue, SIGNAL(valueChanged(double)), this, SLOT(updateSliceSettings()));
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connect(m_sliceLabelVisible, SIGNAL(toggled(bool)), this, SLOT(updateSliceSettings()));
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connect(m_sliceExploded, SIGNAL(toggled(bool)), this, SLOT(updateSliceSettings()));
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connect(m_series, SIGNAL(clicked(QPieSlice*)), this, SLOT(handleSliceClicked(QPieSlice*)));
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updateSerieSettings();
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}
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public Q_SLOTS:
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void updateSerieSettings()
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{
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QPieSeries::PiePosition vPos(m_vPosition->itemData(m_vPosition->currentIndex()).toInt());
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QPieSeries::PiePosition hPos(m_hPosition->itemData(m_hPosition->currentIndex()).toInt());
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m_series->setPosition(vPos | hPos);
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QPieSeries::PieSizePolicy policy(m_sizePolicy->itemData(m_sizePolicy->currentIndex()).toInt());
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m_series->setSizePolicy(policy);
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m_series->setSizeFactor(m_sizeFactor->value());
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m_series->setStartAngle(m_startAngle->value());
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m_series->setEndAngle(m_endAngle->value());
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}
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void updateSliceSettings()
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{
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m_slice->setValue(m_sliceValue->value());
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m_slice->setLabelVisible(m_sliceLabelVisible->isChecked());
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m_slice->setExploded(m_sliceExploded->isChecked());
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}
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void handleSliceClicked(QPieSlice* slice)
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{
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m_slice = slice;
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m_sliceName->setText(slice->label());
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m_sliceValue->blockSignals(true);
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m_sliceValue->setValue(slice->value());
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m_sliceValue->blockSignals(false);
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m_sliceLabelVisible->blockSignals(true);
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m_sliceLabelVisible->setChecked(slice->isLabelVisible());
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m_sliceLabelVisible->blockSignals(false);
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m_sliceExploded->blockSignals(true);
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m_sliceExploded->setChecked(slice->isExploded());
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m_sliceExploded->blockSignals(false);
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}
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private:
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QChartView* m_chartView;
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QPieSeries* m_series;
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QPieSlice* m_slice;
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QComboBox* m_vPosition;
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QComboBox* m_hPosition;
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QComboBox* m_sizePolicy;
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QDoubleSpinBox* m_sizeFactor;
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QDoubleSpinBox* m_startAngle;
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QDoubleSpinBox* m_endAngle;
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QLabel* m_sliceName;
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QDoubleSpinBox* m_sliceValue;
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QCheckBox* m_sliceLabelVisible;
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QCheckBox* m_sliceExploded;
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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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