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Diffstat (limited to 'src/declarative/qml/qdeclarativeguard_p.h')
| -rw-r--r-- | src/declarative/qml/qdeclarativeguard_p.h | 218 |
1 files changed, 0 insertions, 218 deletions
diff --git a/src/declarative/qml/qdeclarativeguard_p.h b/src/declarative/qml/qdeclarativeguard_p.h deleted file mode 100644 index fdd5c016a5..0000000000 --- a/src/declarative/qml/qdeclarativeguard_p.h +++ /dev/null @@ -1,218 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** This file may be used under the terms of the GNU Lesser General Public -** License version 2.1 as published by the Free Software Foundation and -** appearing in the file LICENSE.LGPL included in the packaging of this -** file. Please review the following information to ensure the GNU Lesser -** General Public License version 2.1 requirements will be met: -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU General -** Public License version 3.0 as published by the Free Software Foundation -** and appearing in the file LICENSE.GPL included in the packaging of this -** file. Please review the following information to ensure the GNU General -** Public License version 3.0 requirements will be met: -** http://www.gnu.org/copyleft/gpl.html. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QDECLARATIVEGUARD_P_H -#define QDECLARATIVEGUARD_P_H - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists for the convenience -// of qapplication_*.cpp, qwidget*.cpp and qfiledialog.cpp. This header -// file may change from version to version without notice, or even be removed. -// -// We mean it. -// - -#include <QtCore/qglobal.h> -#include <QtCore/qvariant.h> -#include <private/qdeclarativedata_p.h> - -QT_BEGIN_NAMESPACE - -class QDeclarativeGuardImpl -{ -public: - inline QDeclarativeGuardImpl(); - inline QDeclarativeGuardImpl(QObject *); - inline QDeclarativeGuardImpl(const QDeclarativeGuardImpl &); - inline ~QDeclarativeGuardImpl(); - - QObject *o; - QDeclarativeGuardImpl *next; - QDeclarativeGuardImpl **prev; - - inline void addGuard(); - inline void remGuard(); -}; - -class QObject; -template<class T> -class QDeclarativeGuard : private QDeclarativeGuardImpl -{ - friend class QDeclarativeData; -public: - inline QDeclarativeGuard(); - inline QDeclarativeGuard(T *); - inline QDeclarativeGuard(const QDeclarativeGuard<T> &); - inline virtual ~QDeclarativeGuard(); - - inline QDeclarativeGuard<T> &operator=(const QDeclarativeGuard<T> &o); - inline QDeclarativeGuard<T> &operator=(T *); - - inline T *object() const; - inline void setObject(T *g); - - inline bool isNull() const - { return !o; } - - inline T* operator->() const - { return static_cast<T*>(const_cast<QObject*>(o)); } - inline T& operator*() const - { return *static_cast<T*>(const_cast<QObject*>(o)); } - inline operator T*() const - { return static_cast<T*>(const_cast<QObject*>(o)); } - inline T* data() const - { return static_cast<T*>(const_cast<QObject*>(o)); } - -protected: - virtual void objectDestroyed(T *) {} -}; - -QT_END_NAMESPACE - -Q_DECLARE_METATYPE(QDeclarativeGuard<QObject>) - -QT_BEGIN_NAMESPACE - -QDeclarativeGuardImpl::QDeclarativeGuardImpl() -: o(0), next(0), prev(0) -{ -} - -QDeclarativeGuardImpl::QDeclarativeGuardImpl(QObject *g) -: o(g), next(0), prev(0) -{ - if (o) addGuard(); -} - -QDeclarativeGuardImpl::QDeclarativeGuardImpl(const QDeclarativeGuardImpl &g) -: o(g.o), next(0), prev(0) -{ - if (o) addGuard(); -} - -QDeclarativeGuardImpl::~QDeclarativeGuardImpl() -{ - if (prev) remGuard(); - o = 0; -} - -void QDeclarativeGuardImpl::addGuard() -{ - Q_ASSERT(!prev); - - if (QObjectPrivate::get(o)->wasDeleted) - return; - - QDeclarativeData *data = QDeclarativeData::get(o, true); - next = data->guards; - if (next) next->prev = &next; - data->guards = this; - prev = &data->guards; -} - -void QDeclarativeGuardImpl::remGuard() -{ - Q_ASSERT(prev); - - if (next) next->prev = prev; - *prev = next; - next = 0; - prev = 0; -} - -template<class T> -QDeclarativeGuard<T>::QDeclarativeGuard() -{ -} - -template<class T> -QDeclarativeGuard<T>::QDeclarativeGuard(T *g) -: QDeclarativeGuardImpl(g) -{ -} - -template<class T> -QDeclarativeGuard<T>::QDeclarativeGuard(const QDeclarativeGuard<T> &g) -: QDeclarativeGuardImpl(g) -{ -} - -template<class T> -QDeclarativeGuard<T>::~QDeclarativeGuard() -{ -} - -template<class T> -QDeclarativeGuard<T> &QDeclarativeGuard<T>::operator=(const QDeclarativeGuard<T> &g) -{ - setObject(g.object()); - return *this; -} - -template<class T> -QDeclarativeGuard<T> &QDeclarativeGuard<T>::operator=(T *g) -{ - setObject(g); - return *this; -} - -template<class T> -T *QDeclarativeGuard<T>::object() const -{ - return static_cast<T *>(o); -}; - -template<class T> -void QDeclarativeGuard<T>::setObject(T *g) -{ - if (g != o) { - if (prev) remGuard(); - o = g; - if (o) addGuard(); - } -} - -QT_END_NAMESPACE - -#endif // QDECLARATIVEGUARD_P_H |