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36
37#ifndef QPARAMETERIZABLEOBJECT_H
38#define QPARAMETERIZABLEOBJECT_H
39
40//
41// W A R N I N G
42// -------------
43//
44// This file is not part of the Qt API. It exists purely as an
45// implementation detail. This header file may change from version to
46// version without notice, or even be removed.
47//
48// We mean it.
49//
50
51#include <QtLocation/private/qlocationglobal_p.h>
52#include <QObject>
53#include <QQmlListProperty>
54#include <QQmlParserStatus>
55
56QT_BEGIN_NAMESPACE
57class QGeoMapParameter;
58class Q_LOCATION_PRIVATE_EXPORT QParameterizableObject : public QObject
59{
60 Q_OBJECT
61 Q_PROPERTY(QObject *parent READ parent NOTIFY parentChanged DESIGNABLE false FINAL)
62 Q_PROPERTY(QQmlListProperty<QObject> quickChildren READ declarativeChildren DESIGNABLE false)
63 Q_CLASSINFO("DefaultProperty", "quickChildren")
64
65public:
66 explicit QParameterizableObject(QObject *parent = nullptr);
67
68 template <typename T = QObject>
69 QList<T*> quickChildren() const
70 {
71 QList<T*> res;
72 for (auto kid : qAsConst(t: m_children)) {
73 auto val = qobject_cast<T*>(kid);
74 if (val)
75 res.push_back(val);
76 }
77 return res;
78 }
79
80Q_SIGNALS:
81 void parentChanged();
82
83protected:
84 virtual void appendChild(QObject *v);
85 virtual void clearChildren();
86
87 static void append(QQmlListProperty<QObject> *p, QObject *v);
88 static int count(QQmlListProperty<QObject> *p);
89 static QObject *at(QQmlListProperty<QObject> *p, int idx);
90 static void clear(QQmlListProperty<QObject> *p);
91
92 QQmlListProperty<QObject> declarativeChildren();
93 QList<QObject*> m_children;
94};
95QT_END_NAMESPACE
96
97#endif // QPARAMETERIZABLEOBJECT_H
98

source code of qtlocation/src/location/declarativemaps/qparameterizableobject_p.h