1/****************************************************************************
2**
3** Copyright (C) 2017 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the QtWaylandCompositor module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:GPL$
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 https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** GNU General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU
19** General Public License version 3 or (at your option) any later version
20** approved by the KDE Free Qt Foundation. The licenses are as published by
21** the Free Software Foundation and appearing in the file LICENSE.GPL3
22** included in the packaging of this file. Please review the following
23** information to ensure the GNU General Public License requirements will
24** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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26** $QT_END_LICENSE$
27**
28****************************************************************************/
29
30#ifndef QWAYLANDQUICKEXTENSION_H
31#define QWAYLANDQUICKEXTENSION_H
32
33#include <QtWaylandCompositor/QWaylandCompositorExtension>
34#include <QtQml/QQmlParserStatus>
35#include <QtQml/QQmlListProperty>
36
37QT_BEGIN_NAMESPACE
38
39#define Q_COMPOSITOR_DECLARE_QUICK_EXTENSION_CLASS(className) \
40 class Q_WAYLAND_COMPOSITOR_EXPORT className##QuickExtension : public className, public QQmlParserStatus \
41 { \
42/* qmake ignore Q_OBJECT */ \
43 Q_OBJECT \
44 Q_PROPERTY(QQmlListProperty<QObject> data READ data DESIGNABLE false) \
45 Q_CLASSINFO("DefaultProperty", "data") \
46 Q_INTERFACES(QQmlParserStatus) \
47 public: \
48 QQmlListProperty<QObject> data() \
49 { \
50 return QQmlListProperty<QObject>(this, &m_objects); \
51 } \
52 void classBegin() override {} \
53 void componentComplete() override { if (!isInitialized()) initialize(); } \
54 private: \
55 QList<QObject *> m_objects; \
56 };
57
58#define Q_COMPOSITOR_DECLARE_QUICK_EXTENSION_CONTAINER_CLASS(className) \
59 class Q_WAYLAND_COMPOSITOR_EXPORT className##QuickExtensionContainer : public className \
60 { \
61/* qmake ignore Q_OBJECT */ \
62 Q_OBJECT \
63 Q_PROPERTY(QQmlListProperty<QWaylandCompositorExtension> extensions READ extensions) \
64 Q_PROPERTY(QQmlListProperty<QObject> data READ data DESIGNABLE false) \
65 Q_CLASSINFO("DefaultProperty", "data") \
66 public: \
67 QQmlListProperty<QObject> data() \
68 { \
69 return QQmlListProperty<QObject>(this, &m_objects); \
70 } \
71 QQmlListProperty<QWaylandCompositorExtension> extensions() \
72 { \
73 return QQmlListProperty<QWaylandCompositorExtension>(this, this, \
74 &className##QuickExtensionContainer::append_extension, \
75 &className##QuickExtensionContainer::countFunction, \
76 &className##QuickExtensionContainer::atFunction, \
77 &className##QuickExtensionContainer::clearFunction); \
78 } \
79 static int countFunction(QQmlListProperty<QWaylandCompositorExtension> *list) \
80 { \
81 return static_cast<className##QuickExtensionContainer *>(list->data)->extension_vector.size(); \
82 } \
83 static QWaylandCompositorExtension *atFunction(QQmlListProperty<QWaylandCompositorExtension> *list, int index) \
84 { \
85 return static_cast<className##QuickExtensionContainer *>(list->data)->extension_vector.at(index); \
86 } \
87 static void append_extension(QQmlListProperty<QWaylandCompositorExtension> *list, QWaylandCompositorExtension *extension) \
88 { \
89 className##QuickExtensionContainer *quickExtObj = static_cast<className##QuickExtensionContainer *>(list->data); \
90 extension->setExtensionContainer(quickExtObj); \
91 } \
92 static void clearFunction(QQmlListProperty<QWaylandCompositorExtension> *list) \
93 { \
94 static_cast<className##QuickExtensionContainer *>(list->data)->extension_vector.clear(); \
95 } \
96 private: \
97 QList<QObject *> m_objects; \
98 };
99
100QT_END_NAMESPACE
101
102#endif /*QWAYLANDQUICKEXTENSION_H*/
103

source code of qtwayland/src/compositor/global/qwaylandquickextension.h