qptrcollection.h Include File

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# qptrcollection.h

This is the verbatim text of the qptrcollection.h include file. It is provided only for illustration; the copyright remains with Trolltech.

    /****************************************************************************
    **
    ** Definition of base class for all pointer based collection classes
    **
    **
    ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
    **
    ** This file is part of the tools module of the Qt GUI Toolkit.
    **
    ** This file may be distributed under the terms of the Q Public License
    ** as defined by Trolltech ASA of Norway and appearing in the file
    ** LICENSE.QPL included in the packaging of this file.
    **
    ** This file may be distributed and/or modified under the terms of the
    ** GNU General Public License version 2 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file.
    **
    ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
    ** licenses may use this file in accordance with the Qt Commercial License
    ** Agreement provided with the Software.
    **
    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    **
    ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
    **   information about Qt Commercial License Agreements.
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    #ifndef QPTRCOLLECTION_H
    #define QPTRCOLLECTION_H

    #ifndef QT_H
    #include "qglobal.h"
    #endif // QT_H

    class QGVector;
    class QGList;
    class QGDict;

    class Q_EXPORT QPtrCollection			// inherited by all collections
    {
    public:
        bool autoDelete()	const	       { return del_item; }
        void setAutoDelete( bool enable )  { del_item = enable; }

        virtual uint  count() const = 0;
        virtual void  clear() = 0;			// delete all objects

        typedef void *Item;				// generic collection item

    protected:
        QPtrCollection() { del_item = FALSE; }		// no deletion of objects
        QPtrCollection(const QPtrCollection &) { del_item = FALSE; }
        virtual ~QPtrCollection() {}

        bool del_item;				// default FALSE

        virtual Item     newItem( Item );		// create object
        virtual void     deleteItem( Item ) = 0;	// delete object
    };

    #ifndef QT_NO_COMPAT
    #define QCollection QPtrCollection
    #endif

    #endif // QPTRCOLLECTION_H