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authorTimothy Pearson <[email protected]>2011-11-08 12:31:36 -0600
committerTimothy Pearson <[email protected]>2011-11-08 12:31:36 -0600
commitd796c9dd933ab96ec83b9a634feedd5d32e1ba3f (patch)
tree6e3dcca4f77e20ec8966c666aac7c35bd4704053 /src/kernel/qguardedptr.h
downloadtqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.tar.gz
tqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.zip
Test conversion to TQt3 from Qt3 8c6fc1f8e35fd264dd01c582ca5e7549b32ab731
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+/****************************************************************************
+**
+** 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 retquirements 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 [email protected].
+**
+** 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 "qobject.h"
+#endif // QT_H
+
+// ### 4.0: rename to something without Private in it. Not really internal.
+class Q_EXPORT TQGuardedPtrPrivate : public TQObject, public TQShared
+{
+ Q_OBJECT
+public:
+ TQGuardedPtrPrivate( TQObject* );
+ ~TQGuardedPtrPrivate();
+
+ TQObject* object() const;
+ void reconnect( TQObject* );
+
+private slots:
+ void objectDestroyed();
+
+private:
+ TQObject* obj;
+#if defined(Q_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 "qwinexport.h"
+#endif