qqueue.h

/****************************************************************************
** $Id: qqueue.h,v 2.3.2.2 1998/08/27 08:14:01 hanord Exp $
**
** Definition of QQueue template/macro class
**
** Created : 920917
**
** Copyright (C) 1992-1998 Troll Tech AS.  All rights reserved.
**
** This file is part of Qt Free Edition, version 1.42.
**
** See the file LICENSE included in the distribution for the usage
** and distribution terms, or http://www.troll.no/free-license.html.
**
** IMPORTANT NOTE: You may NOT copy this file or any part of it into
** your own programs or libraries.
**
** Please see http://www.troll.no/pricing.html for information about 
** Qt Professional Edition, which is this same library but with a
** license which allows creation of commercial/proprietary software.
**
*****************************************************************************/

#ifndef QQUEUE_H
#define QQUEUE_H

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


#if defined(USE_MACROCLASS)

#include "qgeneric.h"

#if !defined(name2)
#define name2(a,b)    name2_xx(a,b)
#define name2_xx(a,b) a##b
#endif

#if defined(DEFAULT_MACROCLASS)
#define QQueuedeclare QQueueMdeclare
#define QQueue QQueueM
#endif
#define QQueueM(type) name2(QQueueM_,type)

#define QQueueMdeclare(type)                                                  \
class Q_EXPORTM QQueueM(type) : private QGList                                \
{                                                                             \
public:                                                                       \
    QQueueM(type)()                     {}                                    \
    QQueueM(type)( const QQueueM(type) &q ) : QGList(q) {}                    \
   ~QQueueM(type)()                     { clear(); }                          \
    QQueueM(type)& operator=(const QQueueM(type) &q)                          \
                        { return (QQueueM(type)&)QGList::operator=(q); }      \
    bool  autoDelete() const            { return QCollection::autoDelete(); } \
    void  setAutoDelete( bool del )     { QCollection::setAutoDelete(del); }  \
    uint  count()   const               { return QGList::count(); }           \
    bool  isEmpty() const               { return QGList::count() == 0; }      \
    void  enqueue( const type *d )      { QGList::append(GCI(d)); }           \
    type *dequeue()                     { return (type *)QGList::takeFirst();}\
    bool  remove()                      { return QGList::removeFirst(); }     \
    void  clear()                       { QGList::clear(); }                  \
    type *head()    const               { return (type *)QGList::cfirst(); }  \
          operator type *() const       { return (type *)QGList::cfirst(); }  \
    type *current() const               { return (type *)QGList::cfirst(); }  \
private:                                                                      \
    void  deleteItem( GCI d ) { if ( del_item ) delete (type *)d; }           \
}

#endif // USE_MACROCLASS


#if defined(USE_TEMPLATECLASS)

#if defined(DEFAULT_TEMPLATECLASS)
#undef  QQueue
#define QQueue QQueueT
#endif

template<class type> class Q_EXPORT QQueueT : private QGList
{
public:
    QQueueT()                           {}
    QQueueT( const QQueueT<type> &q ) : QGList(q) {}
   ~QQueueT()                           { clear(); }
    QQueueT<type>& operator=(const QQueueT<type> &q)
                        { return (QQueueT<type>&)QGList::operator=(q); }
    bool  autoDelete() const            { return QCollection::autoDelete(); }
    void  setAutoDelete( bool del )     { QCollection::setAutoDelete(del); }
    uint  count()   const               { return QGList::count(); }
    bool  isEmpty() const               { return QGList::count() == 0; }
    void  enqueue( const type *d )      { QGList::append(GCI(d)); }
    type *dequeue()                     { return (type *)QGList::takeFirst();}
    bool  remove()                      { return QGList::removeFirst(); }
    void  clear()                       { QGList::clear(); }
    type *head()    const               { return (type *)QGList::cfirst(); }
          operator type *() const       { return (type *)QGList::cfirst(); }
    type *current() const               { return (type *)QGList::cfirst(); }
private:
    void  deleteItem( GCI d ) { if ( del_item ) delete (type *)d; }
};

#endif // USE_TEMPLATECLASS


#endif // QQUEUE_H