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3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
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6** This file is part of the Qt Charts module of the Qt Toolkit.
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29
30// W A R N I N G
31// -------------
32//
33// This file is not part of the Qt Chart API. It exists purely as an
34// implementation detail. This header file may change from version to
35// version without notice, or even be removed.
36//
37// We mean it.
38
39#ifndef QPIESERIES_P_H
40#define QPIESERIES_P_H
41
42#include <QtCharts/QPieSeries>
43#include <private/qabstractseries_p.h>
44#include <QtCharts/private/qchartglobal_p.h>
45
46QT_CHARTS_BEGIN_NAMESPACE
47class QLegendPrivate;
48
49class Q_CHARTS_PRIVATE_EXPORT QPieSeriesPrivate : public QAbstractSeriesPrivate
50{
51 Q_OBJECT
52
53public:
54 QPieSeriesPrivate(QPieSeries *parent);
55 ~QPieSeriesPrivate();
56
57 void initializeDomain();
58 void initializeAxes();
59 void initializeGraphics(QGraphicsItem* parent);
60 void initializeAnimations(QtCharts::QChart::AnimationOptions options, int duration,
61 QEasingCurve &curve);
62 void initializeTheme(int index, ChartTheme* theme, bool forced = false);
63
64 QList<QLegendMarker *> createLegendMarkers(QLegend *legend);
65
66 QAbstractAxis::AxisType defaultAxisType(Qt::Orientation orientation) const;
67 QAbstractAxis* createDefaultAxis(Qt::Orientation orientation) const;
68
69 void updateDerivativeData();
70 void setSizes(qreal innerSize, qreal outerSize);
71
72 static QPieSeriesPrivate *fromSeries(QPieSeries *series);
73
74Q_SIGNALS:
75 void calculatedDataChanged();
76 void pieSizeChanged();
77 void pieStartAngleChanged();
78 void pieEndAngleChanged();
79 void horizontalPositionChanged();
80 void verticalPositionChanged();
81
82public Q_SLOTS:
83 void sliceValueChanged();
84 void sliceClicked();
85 void sliceHovered(bool state);
86 void slicePressed();
87 void sliceReleased();
88 void sliceDoubleClicked();
89
90private:
91 QList<QPieSlice *> m_slices;
92 qreal m_pieRelativeHorPos;
93 qreal m_pieRelativeVerPos;
94 qreal m_pieRelativeSize;
95 qreal m_pieStartAngle;
96 qreal m_pieEndAngle;
97 qreal m_sum;
98 qreal m_holeRelativeSize;
99
100public:
101 friend class QLegendPrivate;
102 Q_DECLARE_PUBLIC(QPieSeries)
103};
104
105QT_CHARTS_END_NAMESPACE
106
107#endif // QPIESERIES_P_H
108

source code of qtcharts/src/charts/piechart/qpieseries_p.h