You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
145 lines
3.8 KiB
145 lines
3.8 KiB
/****************************************************************************
|
|
**
|
|
** Definition of TQGuardedPtr class
|
|
**
|
|
** Created : 990929
|
|
**
|
|
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
|
|
**
|
|
** This file is part of the kernel module of the TQt GUI Toolkit.
|
|
**
|
|
** This file may be used under the terms of the GNU General
|
|
** Public License versions 2.0 or 3.0 as published by the Free
|
|
** Software Foundation and appearing in the files LICENSE.GPL2
|
|
** and LICENSE.GPL3 included in the packaging of this file.
|
|
** Alternatively you may (at your option) use any later version
|
|
** of the GNU General Public License if such license has been
|
|
** publicly approved by Trolltech ASA (or its successors, if any)
|
|
** and the KDE Free TQt Foundation.
|
|
**
|
|
** Please review the following information to ensure GNU General
|
|
** Public Licensing requirements will be met:
|
|
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
|
|
** If you are unsure which license is appropriate for your use, please
|
|
** review the following information:
|
|
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
|
|
** or contact the sales department at sales@trolltech.com.
|
|
**
|
|
** This file may be used under the terms of the Q Public License as
|
|
** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
|
|
** included in the packaging of this file. Licensees holding valid TQt
|
|
** Commercial licenses may use this file in accordance with the TQt
|
|
** Commercial License Agreement provided with the Software.
|
|
**
|
|
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
|
|
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
|
|
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
|
|
** herein.
|
|
**
|
|
**********************************************************************/
|
|
|
|
#ifndef TQGUARDEDPTR_H
|
|
#define TQGUARDEDPTR_H
|
|
|
|
#ifndef QT_H
|
|
#include "ntqobject.h"
|
|
#endif // QT_H
|
|
|
|
// ### 4.0: rename to something without Private in it. Not really internal.
|
|
class Q_EXPORT TQGuardedPtrPrivate : public TQObject, public TQShared
|
|
{
|
|
TQ_OBJECT
|
|
public:
|
|
TQGuardedPtrPrivate( TQObject* );
|
|
~TQGuardedPtrPrivate();
|
|
|
|
TQObject* object() const;
|
|
void reconnect( TQObject* );
|
|
|
|
private slots:
|
|
void objectDestroyed();
|
|
|
|
private:
|
|
TQObject* obj;
|
|
#if defined(TQ_DISABLE_COPY) // Disabled copy constructor and operator=
|
|
TQGuardedPtrPrivate( const TQGuardedPtrPrivate & );
|
|
TQGuardedPtrPrivate &operator=( const TQGuardedPtrPrivate & );
|
|
#endif
|
|
};
|
|
|
|
template <class T>
|
|
class TQGuardedPtr
|
|
{
|
|
public:
|
|
TQGuardedPtr() : priv( new TQGuardedPtrPrivate( 0 ) ) {}
|
|
|
|
TQGuardedPtr( T* o) {
|
|
priv = new TQGuardedPtrPrivate( (TQObject*)o );
|
|
}
|
|
|
|
TQGuardedPtr(const TQGuardedPtr<T> &p) {
|
|
priv = p.priv;
|
|
ref();
|
|
}
|
|
|
|
~TQGuardedPtr() { deref(); }
|
|
|
|
TQGuardedPtr<T> &operator=(const TQGuardedPtr<T> &p) {
|
|
if ( priv != p.priv ) {
|
|
deref();
|
|
priv = p.priv;
|
|
ref();
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
TQGuardedPtr<T> &operator=(T* o) {
|
|
if ( priv && priv->count == 1 ) {
|
|
priv->reconnect( (TQObject*)o );
|
|
} else {
|
|
deref();
|
|
priv = new TQGuardedPtrPrivate( (TQObject*)o );
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
bool operator==( const TQGuardedPtr<T> &p ) const {
|
|
return (T*)(*this) == (T*) p;
|
|
}
|
|
|
|
bool operator!= ( const TQGuardedPtr<T>& p ) const {
|
|
return !( *this == p );
|
|
}
|
|
|
|
bool isNull() const { return !priv || !priv->object(); }
|
|
|
|
T* operator->() const { return (T*)(priv?priv->object():0); }
|
|
|
|
T& operator*() const { return *((T*)(priv?priv->object():0)); }
|
|
|
|
operator T*() const { return (T*)(priv?priv->object():0); }
|
|
|
|
private:
|
|
|
|
void ref() { if (priv) priv->ref(); }
|
|
|
|
void deref() {
|
|
if ( priv && priv->deref() )
|
|
delete priv;
|
|
}
|
|
|
|
TQGuardedPtrPrivate* priv;
|
|
};
|
|
|
|
|
|
|
|
|
|
inline TQObject* TQGuardedPtrPrivate::object() const
|
|
{
|
|
return obj;
|
|
}
|
|
|
|
#define Q_DEFINED_QGUARDEDPTR
|
|
#include "ntqwinexport.h"
|
|
#endif
|