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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 DECLARATIVEPIESERIES_H
40#define DECLARATIVEPIESERIES_H
41
42#include <QtCharts/QPieSeries>
43#include <QtCharts/QPieSlice>
44#include <private/declarativechartglobal_p.h>
45
46#include <QtQuick/QQuickItem>
47#include <QtQml/QQmlParserStatus>
48
49QT_CHARTS_BEGIN_NAMESPACE
50
51class Q_QMLCHARTS_PRIVATE_EXPORT DeclarativePieSlice : public QPieSlice
52{
53 Q_OBJECT
54 Q_PROPERTY(QString brushFilename READ brushFilename WRITE setBrushFilename NOTIFY brushFilenameChanged)
55
56public:
57 explicit DeclarativePieSlice(QObject *parent = 0);
58 QString brushFilename() const;
59 void setBrushFilename(const QString &brushFilename);
60
61Q_SIGNALS:
62 void brushFilenameChanged(const QString &brushFilename);
63
64private Q_SLOTS:
65 void handleBrushChanged();
66
67private:
68 QString m_brushFilename;
69 QImage m_brushImage;
70};
71
72class DeclarativePieSeries : public QPieSeries, public QQmlParserStatus
73{
74 Q_OBJECT
75 Q_INTERFACES(QQmlParserStatus)
76 Q_PROPERTY(QQmlListProperty<QObject> seriesChildren READ seriesChildren)
77 Q_CLASSINFO("DefaultProperty", "seriesChildren")
78
79public:
80 explicit DeclarativePieSeries(QQuickItem *parent = 0);
81 QQmlListProperty<QObject> seriesChildren();
82 Q_INVOKABLE QPieSlice *at(int index);
83 Q_INVOKABLE QPieSlice *find(QString label);
84 Q_INVOKABLE DeclarativePieSlice *append(QString label, qreal value);
85 Q_INVOKABLE bool remove(QPieSlice *slice);
86 Q_INVOKABLE void clear();
87
88public:
89 void classBegin();
90 void componentComplete();
91
92Q_SIGNALS:
93 void sliceAdded(QPieSlice *slice);
94 void sliceRemoved(QPieSlice *slice);
95
96public Q_SLOTS:
97 static void appendSeriesChildren(QQmlListProperty<QObject> *list, QObject *element);
98 void handleAdded(QList<QPieSlice *> slices);
99 void handleRemoved(QList<QPieSlice *> slices);
100};
101
102QT_CHARTS_END_NAMESPACE
103
104#endif // DECLARATIVEPIESERIES_H
105

source code of qtcharts/src/chartsqml2/declarativepieseries_p.h