mainwidget.h Example File

piechartcustomization/mainwidget.h
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 ** Contact: https://www.qt.io/licensing/
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 ** This file is part of the Qt Charts module of the Qt Toolkit.
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 #ifndef MAINWIDGET_H
 #define MAINWIDGET_H

 #include <QtWidgets/QWidget>
 #include <QtCharts/QChartGlobal>

 class QLineEdit;
 class QPushButton;
 class QCheckBox;
 class QComboBox;
 class QDoubleSpinBox;

 class PenTool;
 class BrushTool;
 class CustomSlice;

 QT_CHARTS_BEGIN_NAMESPACE
 class QChartView;
 class QPieSeries;
 class QPieSlice;
 QT_CHARTS_END_NAMESPACE

 QT_CHARTS_USE_NAMESPACE

 class MainWidget : public QWidget
 {
     Q_OBJECT

 public:
     explicit MainWidget(QWidget *parent = 0);

 public Q_SLOTS:
     void updateChartSettings();
     void updateSerieSettings();
     void updateSliceSettings();
     void handleSliceClicked(QPieSlice *slice);
     void showFontDialog();
     void appendSlice();
     void insertSlice();
     void removeSlice();

 private:
     QComboBox *m_themeComboBox;
     QCheckBox *m_aaCheckBox;
     QCheckBox *m_animationsCheckBox;
     QCheckBox *m_legendCheckBox;

     QChartView *m_chartView;
     QPieSeries *m_series;
     CustomSlice *m_slice;

     QDoubleSpinBox *m_hPosition;
     QDoubleSpinBox *m_vPosition;
     QDoubleSpinBox *m_sizeFactor;
     QDoubleSpinBox *m_startAngle;
     QDoubleSpinBox *m_endAngle;
     QDoubleSpinBox *m_holeSize;

     QLineEdit *m_sliceName;
     QDoubleSpinBox *m_sliceValue;
     QCheckBox *m_sliceLabelVisible;
     QDoubleSpinBox *m_sliceLabelArmFactor;
     QCheckBox *m_sliceExploded;
     QDoubleSpinBox *m_sliceExplodedFactor;
     QPushButton *m_brush;
     BrushTool *m_brushTool;
     QPushButton *m_pen;
     PenTool *m_penTool;
     QPushButton *m_font;
     QPushButton *m_labelBrush;
     QComboBox *m_labelPosition;
     BrushTool *m_labelBrushTool;
 };

 #endif // MAINWIDGET_H