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+/****************************************************************************
+**
+** Definition of TQGuardedPtr class
+**
+** Created : 990929
+**
+** Copyright (C) 2010 Timothy Pearson and (C) 1992-2008 Trolltech ASA.
+**
+** 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 TQT_H
+#include "tqobject.h"
+#endif // TQT_H
+
+// ### 4.0: rename to something without Private in it. Not really internal.
+class TQ_EXPORT TQGuardedPtrPrivate : public TQObject, public TQShared
+{
+    Q_OBJECT
+    TQ_OBJECT
+public:
+    TQGuardedPtrPrivate( TQObject* );
+    ~TQGuardedPtrPrivate();
+
+    TQObject* object() const;
+    void reconnect( TQObject* );
+
+private Q_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 TQ_DEFINED_TQGUARDEDPTR
+#include "tqwinexport.h"
+#endif