1 | /**************************************************************************** |
2 | ** |
3 | ** Copyright (C) 2017 The Qt Company Ltd. |
4 | ** Contact: http://www.qt.io/licensing/ |
5 | ** |
6 | ** This file is part of the QtLocation module of the Qt Toolkit. |
7 | ** |
8 | ** $QT_BEGIN_LICENSE:LGPL3$ |
9 | ** Commercial License Usage |
10 | ** Licensees holding valid commercial Qt licenses may use this file in |
11 | ** accordance with the commercial license agreement provided with the |
12 | ** Software or, alternatively, in accordance with the terms contained in |
13 | ** a written agreement between you and The Qt Company. For licensing terms |
14 | ** and conditions see http://www.qt.io/terms-conditions. For further |
15 | ** information use the contact form at http://www.qt.io/contact-us. |
16 | ** |
17 | ** GNU Lesser General Public License Usage |
18 | ** Alternatively, this file may be used under the terms of the GNU Lesser |
19 | ** General Public License version 3 as published by the Free Software |
20 | ** Foundation and appearing in the file LICENSE.LGPLv3 included in the |
21 | ** packaging of this file. Please review the following information to |
22 | ** ensure the GNU Lesser General Public License version 3 requirements |
23 | ** will be met: https://www.gnu.org/licenses/lgpl.html. |
24 | ** |
25 | ** GNU General Public License Usage |
26 | ** Alternatively, this file may be used under the terms of the GNU |
27 | ** General Public License version 2.0 or later as published by the Free |
28 | ** Software Foundation and appearing in the file LICENSE.GPL included in |
29 | ** the packaging of this file. Please review the following information to |
30 | ** ensure the GNU General Public License version 2.0 requirements will be |
31 | ** met: http://www.gnu.org/licenses/gpl-2.0.html. |
32 | ** |
33 | ** $QT_END_LICENSE$ |
34 | ** |
35 | ****************************************************************************/ |
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 | |
56 | QT_BEGIN_NAMESPACE |
57 | class QGeoMapParameter; |
58 | class 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 | |
65 | public: |
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 | |
80 | Q_SIGNALS: |
81 | void parentChanged(); |
82 | |
83 | protected: |
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 | }; |
95 | QT_END_NAMESPACE |
96 | |
97 | #endif // QPARAMETERIZABLEOBJECT_H |
98 | |