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50
51#ifndef BEZIERCURVE_H
52#define BEZIERCURVE_H
53
54//! [1]
55#include <QtQuick/QQuickItem>
56
57class BezierCurve : public QQuickItem
58{
59 Q_OBJECT
60
61 Q_PROPERTY(QPointF p1 READ p1 WRITE setP1 NOTIFY p1Changed)
62 Q_PROPERTY(QPointF p2 READ p2 WRITE setP2 NOTIFY p2Changed)
63 Q_PROPERTY(QPointF p3 READ p3 WRITE setP3 NOTIFY p3Changed)
64 Q_PROPERTY(QPointF p4 READ p4 WRITE setP4 NOTIFY p4Changed)
65
66 Q_PROPERTY(int segmentCount READ segmentCount WRITE setSegmentCount NOTIFY segmentCountChanged)
67//! [3]
68 QML_ELEMENT
69//! [3]
70
71public:
72 BezierCurve(QQuickItem *parent = 0);
73 ~BezierCurve();
74
75//! [2]
76 QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *);
77//! [2]
78
79 QPointF p1() const { return m_p1; }
80 QPointF p2() const { return m_p2; }
81 QPointF p3() const { return m_p3; }
82 QPointF p4() const { return m_p4; }
83
84 int segmentCount() const { return m_segmentCount; }
85
86 void setP1(const QPointF &p);
87 void setP2(const QPointF &p);
88 void setP3(const QPointF &p);
89 void setP4(const QPointF &p);
90
91 void setSegmentCount(int count);
92
93signals:
94 void p1Changed(const QPointF &p);
95 void p2Changed(const QPointF &p);
96 void p3Changed(const QPointF &p);
97 void p4Changed(const QPointF &p);
98
99 void segmentCountChanged(int count);
100
101private:
102 QPointF m_p1;
103 QPointF m_p2;
104 QPointF m_p3;
105 QPointF m_p4;
106
107 int m_segmentCount;
108};
109//! [1]
110
111#endif
112
113

source code of qtdeclarative/examples/quick/scenegraph/customgeometry/beziercurve.h