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+/****************************************************************************
+**
+** Implementation of base class for all pointer based collection classes
+**
+** Created : 920820
+**
+** Copyright (C) 2010 Timothy Pearson and (C) 1992-2008 Trolltech ASA.
+**
+** This file is part of the tools 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.
+**
+**********************************************************************/
+
+#include "tqptrcollection.h"
+
+/*!
+    \class TQPtrCollection tqptrcollection.h
+    \reentrant
+    \brief The TQPtrCollection class is the base class of most pointer-based TQt collections.
+
+    \ingroup collection
+    \ingroup tools
+
+    The TQPtrCollection class is an abstract base class for the TQt
+    \link collection.html collection classes\endlink TQDict, TQPtrList,
+    etc. TQt also includes value based collections, e.g. TQValueList,
+    TQMap, etc.
+
+    A TQPtrCollection only knows about the number of objects in the
+    collection and the deletion strategy (see setAutoDelete()).
+
+    A collection is implemented using the \c Item (generic collection
+    item) type, which is a \c void*. The template classes that create
+    the real collections cast the \c Item to the required type.
+*/
+
+
+/*!
+    \enum TQPtrCollection::Item
+
+    This type is the generic "item" in a TQPtrCollection.
+*/
+
+
+/*!
+    \fn TQPtrCollection::TQPtrCollection()
+
+    Constructs a collection. The constructor is protected because
+    TQPtrCollection is an abstract class.
+*/
+
+/*!
+    \fn TQPtrCollection::TQPtrCollection( const TQPtrCollection & source )
+
+    Constructs a copy of \a source with autoDelete() set to FALSE. The
+    constructor is protected because TQPtrCollection is an abstract
+    class.
+
+    Note that if \a source has autoDelete turned on, copying it will
+    risk memory leaks, reading freed memory, or both.
+*/
+
+/*!
+    \fn TQPtrCollection::~TQPtrCollection()
+
+    Destroys the collection. The destructor is protected because
+    TQPtrCollection is an abstract class.
+*/
+
+
+/*!
+    \fn bool TQPtrCollection::autoDelete() const
+
+    Returns the setting of the auto-delete option. The default is FALSE.
+
+    \sa setAutoDelete()
+*/
+
+/*!
+    \fn void TQPtrCollection::setAutoDelete( bool enable )
+
+    Sets the collection to auto-delete its contents if \a enable is
+    TRUE and to never delete them if \a enable is FALSE.
+
+    If auto-deleting is turned on, all the items in a collection are
+    deleted when the collection itself is deleted. This is convenient
+    if the collection has the only pointer to the items.
+
+    The default setting is FALSE, for safety. If you turn it on, be
+    careful about copying the collection - you might tqfind yourself
+    with two collections deleting the same items.
+
+    Note that the auto-delete setting may also affect other functions
+    in subclasses. For example, a subclass that has a remove()
+    function will remove the item from its data structure, and if
+    auto-delete is enabled, will also delete the item.
+
+    \sa autoDelete()
+*/
+
+
+/*!
+    \fn virtual uint TQPtrCollection::count() const
+
+    Returns the number of objects in the collection.
+*/
+
+/*!
+    \fn virtual void TQPtrCollection::clear()
+
+    Removes all objects from the collection. The objects will be
+    deleted if auto-delete has been enabled.
+
+    \sa setAutoDelete()
+*/
+
+/*!
+    \fn void TQPtrCollection::deleteItem( Item d )
+
+    Reimplement this function if you want to be able to delete items.
+
+    Deletes an item that is about to be removed from the collection.
+
+    This function has to reimplemented in the collection template
+    classes, and should \e only delete item \a d if auto-delete has
+    been enabled.
+
+    \warning If you reimplement this function you must also
+    reimplement the destructor and call the virtual function clear()
+    from your destructor. This is due to the way virtual functions and
+    destructors work in C++: Virtual functions in derived classes
+    cannot be called from a destructor. If you do not do this, your
+    deleteItem() function will not be called when the container is
+    destroyed.
+
+    \sa newItem(), setAutoDelete()
+*/
+
+/*!
+    Virtual function that creates a copy of an object that is about to
+    be inserted into the collection.
+
+    The default implementation returns the \a d pointer, i.e. no copy
+    is made.
+
+    This function is seldom reimplemented in the collection template
+    classes. It is not common practice to make a copy of something
+    that is being inserted.
+
+    \sa deleteItem()
+*/
+
+TQPtrCollection::Item TQPtrCollection::newItem( Item d )
+{
+    return d;					// just return reference
+}