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50#ifndef PIECHART_H
51#define PIECHART_H
52
53#include <QColor>
54#include <QtQuick/QQuickPaintedItem>
55
56//![0]
57class PieChart : public QQuickPaintedItem
58{
59//![0]
60 Q_OBJECT
61 Q_PROPERTY(QString name READ name WRITE setName)
62 QML_ELEMENT
63
64//![1]
65 Q_PROPERTY(QColor color READ color WRITE setColor NOTIFY colorChanged)
66public:
67//![1]
68
69 PieChart(QQuickItem *parent = 0);
70
71 QString name() const;
72 void setName(const QString &name);
73
74 QColor color() const;
75 void setColor(const QColor &color);
76
77 void paint(QPainter *painter);
78
79 Q_INVOKABLE void clearChart();
80
81//![2]
82signals:
83 void colorChanged();
84//![2]
85
86private:
87 QString m_name;
88 QColor m_color;
89
90//![3]
91};
92//![3]
93
94#endif
95
96

source code of qtdeclarative/examples/qml/tutorials/extending-qml/chapter3-bindings/piechart.h