1 | /* $Id: UIQObjectStuff.h 98103 2023-01-17 14:15:46Z vboxsync $ */
|
---|
2 | /** @file
|
---|
3 | * VBox Qt GUI - UIQObjectStuff class declaration.
|
---|
4 | */
|
---|
5 |
|
---|
6 | /*
|
---|
7 | * Copyright (C) 2020-2023 Oracle and/or its affiliates.
|
---|
8 | *
|
---|
9 | * This file is part of VirtualBox base platform packages, as
|
---|
10 | * available from https://www.virtualbox.org.
|
---|
11 | *
|
---|
12 | * This program is free software; you can redistribute it and/or
|
---|
13 | * modify it under the terms of the GNU General Public License
|
---|
14 | * as published by the Free Software Foundation, in version 3 of the
|
---|
15 | * License.
|
---|
16 | *
|
---|
17 | * This program is distributed in the hope that it will be useful, but
|
---|
18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
---|
20 | * General Public License for more details.
|
---|
21 | *
|
---|
22 | * You should have received a copy of the GNU General Public License
|
---|
23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
|
---|
24 | *
|
---|
25 | * SPDX-License-Identifier: GPL-3.0-only
|
---|
26 | */
|
---|
27 |
|
---|
28 | #ifndef FEQT_INCLUDED_SRC_globals_UIQObjectStuff_h
|
---|
29 | #define FEQT_INCLUDED_SRC_globals_UIQObjectStuff_h
|
---|
30 | #ifndef RT_WITHOUT_PRAGMA_ONCE
|
---|
31 | # pragma once
|
---|
32 | #endif
|
---|
33 |
|
---|
34 | /* Qt includes: */
|
---|
35 | #include <QObject>
|
---|
36 | #include <QPointer>
|
---|
37 | #include <QVariant>
|
---|
38 |
|
---|
39 | /* GUI includes: */
|
---|
40 | #include "UILibraryDefs.h"
|
---|
41 |
|
---|
42 | /** Guard block which sets/clears QObject property on RAII basis. */
|
---|
43 | class SHARED_LIBRARY_STUFF UIQObjectPropertySetter : public QObject
|
---|
44 | {
|
---|
45 | Q_OBJECT;
|
---|
46 |
|
---|
47 | signals:
|
---|
48 |
|
---|
49 | /** Notify listeners that we are about to be destroyed.
|
---|
50 | * @note This signal is emitted one call-stack frame earlier
|
---|
51 | * than QObject::destroyed(QObject *obj = Q_NULLPTR),
|
---|
52 | * so we still can use info stored in this object. */
|
---|
53 | void sigAboutToBeDestroyed();
|
---|
54 |
|
---|
55 | public:
|
---|
56 |
|
---|
57 | /** Constructs guard block which sets for @a pObject a property with certain @a strPropertyName and @a value. */
|
---|
58 | UIQObjectPropertySetter(QObject *pObject, const QString &strPropertyName, const QVariant &value);
|
---|
59 | /** Constructs guard block which sets for @a objects a property with certain @a strPropertyName and @a value. */
|
---|
60 | UIQObjectPropertySetter(const QList<QObject*> &objects, const QString &strPropertyName, const QVariant &value);
|
---|
61 |
|
---|
62 | /** Destructs guard block clearing previously set property for good. */
|
---|
63 | virtual ~UIQObjectPropertySetter() RT_OVERRIDE;
|
---|
64 |
|
---|
65 | private:
|
---|
66 |
|
---|
67 | /** Inits properties. */
|
---|
68 | void init();
|
---|
69 | /** Deinits properties. */
|
---|
70 | void deinit();
|
---|
71 |
|
---|
72 | /** Holds the list of live QObject pointers. */
|
---|
73 | QList<QPointer<QObject> > m_objects;
|
---|
74 | /** Holds the property name. */
|
---|
75 | QString m_strPropertyName;
|
---|
76 | /** Holds the property value. */
|
---|
77 | QVariant m_value;
|
---|
78 | };
|
---|
79 |
|
---|
80 | #endif /* !FEQT_INCLUDED_SRC_globals_UIQObjectStuff_h */
|
---|