1// Copyright (C) 2016 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
3
4#ifndef QPIESERIES_H
5#define QPIESERIES_H
6
7#include <QtCharts/QAbstractSeries>
8#include <QtCharts/QPieSlice>
9
10QT_BEGIN_NAMESPACE
11class QPieSeriesPrivate;
12
13class Q_CHARTS_EXPORT QPieSeries : public QAbstractSeries
14{
15 Q_OBJECT
16 Q_PROPERTY(qreal horizontalPosition READ horizontalPosition WRITE setHorizontalPosition)
17 Q_PROPERTY(qreal verticalPosition READ verticalPosition WRITE setVerticalPosition)
18 Q_PROPERTY(qreal size READ pieSize WRITE setPieSize)
19 Q_PROPERTY(qreal startAngle READ pieStartAngle WRITE setPieStartAngle)
20 Q_PROPERTY(qreal endAngle READ pieEndAngle WRITE setPieEndAngle)
21 Q_PROPERTY(int count READ count NOTIFY countChanged)
22 Q_PROPERTY(qreal sum READ sum NOTIFY sumChanged)
23 Q_PROPERTY(qreal holeSize READ holeSize WRITE setHoleSize)
24
25public:
26 explicit QPieSeries(QObject *parent = nullptr);
27 virtual ~QPieSeries();
28
29 QAbstractSeries::SeriesType type() const override;
30
31 bool append(QPieSlice *slice);
32 bool append(const QList<QPieSlice *> &slices);
33 QPieSeries &operator << (QPieSlice *slice);
34 QPieSlice *append(const QString &label, qreal value);
35
36 bool insert(int index, QPieSlice *slice);
37
38 bool remove(QPieSlice *slice);
39 bool take(QPieSlice *slice);
40 void clear();
41
42 QList<QPieSlice *> slices() const;
43 int count() const;
44
45 bool isEmpty() const;
46
47 qreal sum() const;
48
49 void setHoleSize(qreal holeSize);
50 qreal holeSize() const;
51
52 void setHorizontalPosition(qreal relativePosition);
53 qreal horizontalPosition() const;
54
55 void setVerticalPosition(qreal relativePosition);
56 qreal verticalPosition() const;
57
58 void setPieSize(qreal relativeSize);
59 qreal pieSize() const;
60
61 void setPieStartAngle(qreal startAngle);
62 qreal pieStartAngle() const;
63
64 void setPieEndAngle(qreal endAngle);
65 qreal pieEndAngle() const;
66
67 void setLabelsVisible(bool visible = true);
68 void setLabelsPosition(QPieSlice::LabelPosition position);
69
70Q_SIGNALS:
71 void added(const QList<QPieSlice *> &slices);
72 void removed(const QList<QPieSlice *> &slices);
73 void clicked(QPieSlice *slice);
74 void hovered(QPieSlice *slice, bool state);
75 void pressed(QPieSlice *slice);
76 void released(QPieSlice *slice);
77 void doubleClicked(QPieSlice *slice);
78 void countChanged();
79 void sumChanged();
80
81private:
82 Q_DECLARE_PRIVATE(QPieSeries)
83 Q_DISABLE_COPY(QPieSeries)
84 friend class PieChartItem;
85};
86
87QT_END_NAMESPACE
88
89#endif // QPIESERIES_H
90

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