| 1 | /* $Id: UIQObjectStuff.h 106061 2024-09-16 14:03:52Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VBox Qt GUI - UIQObjectStuff class declaration.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2020-2024 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * SPDX-License-Identifier: GPL-3.0-only
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| 26 | */
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| 27 |
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| 28 | #ifndef FEQT_INCLUDED_SRC_globals_UIQObjectStuff_h
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| 29 | #define FEQT_INCLUDED_SRC_globals_UIQObjectStuff_h
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| 30 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 31 | # pragma once
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| 32 | #endif
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| 33 |
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| 34 | /* Qt includes: */
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| 35 | #include <QObject>
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| 36 | #include <QPointer>
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| 37 | #include <QVariant>
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| 38 |
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| 39 | /* GUI includes: */
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| 40 | #include "UILibraryDefs.h"
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| 41 |
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| 42 | /** Guard block which sets/clears QObject property on RAII basis. */
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| 43 | class SHARED_LIBRARY_STUFF UIQObjectPropertySetter : public QObject
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| 44 | {
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| 45 | Q_OBJECT;
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| 46 |
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| 47 | signals:
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| 48 |
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| 49 | /** Notify listeners that we are about to be destroyed.
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| 50 | * @note This signal is emitted one call-stack frame earlier
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| 51 | * than QObject::destroyed(QObject *obj = Q_NULLPTR),
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| 52 | * so we still can use info stored in this object. */
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| 53 | void sigAboutToBeDestroyed();
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| 54 |
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| 55 | public:
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| 56 |
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| 57 | /** Constructs guard block which sets for @a pObject a property with certain @a strPropertyName and @a value. */
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| 58 | UIQObjectPropertySetter(QObject *pObject, const QString &strPropertyName, const QVariant &value);
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| 59 | /** Constructs guard block which sets for @a objects a property with certain @a strPropertyName and @a value. */
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| 60 | UIQObjectPropertySetter(const QList<QObject*> &objects, const QString &strPropertyName, const QVariant &value);
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| 61 |
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| 62 | /** Destructs guard block clearing previously set property for good. */
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| 63 | virtual ~UIQObjectPropertySetter() RT_OVERRIDE;
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| 64 |
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| 65 | private:
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| 66 |
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| 67 | /** Inits properties. */
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| 68 | void init();
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| 69 | /** Deinits properties. */
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| 70 | void deinit();
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| 71 |
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| 72 | /** Holds the list of live QObject pointers. */
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| 73 | QList<QPointer<QObject> > m_objects;
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| 74 | /** Holds the property name. */
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| 75 | QString m_strPropertyName;
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| 76 | /** Holds the property value. */
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| 77 | QVariant m_value;
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| 78 | };
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| 79 |
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| 80 | #endif /* !FEQT_INCLUDED_SRC_globals_UIQObjectStuff_h */
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