/*
 * Copyright (c) 1987, 1988, 1989 Stanford University
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided
 * that the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of Stanford not be used in advertising or
 * publicity pertaining to distribution of the software without specific,
 * written prior permission.  Stanford makes no representations about
 * the suitability of this software for any purpose.  It is provided "as is"
 * without express or implied warranty.
 *
 * STANFORD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
 * IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
 * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

/* RefList class */

#ifndef reflist_h
#define reflist_h

#include <InterViews/defs.h>
#include <InterViews/Graphic/ref.h>

class RefList : public Ref {
public:
    RefList();
    RefList(UID);
    RefList(Persistent*);
    ~RefList();

    void SetRef(Ref r);

    bool IsEmpty();
    void Append(RefList*);
    void Prepend(RefList*);
    void Remove(RefList*);
    void Delete(Ref);
    RefList* Find(Ref);
    RefList* First();
    RefList* Last();
    RefList* End();
    RefList* Next();
    RefList* Prev();

    bool Write(PFile*);
    bool Read(PFile*);
    bool WriteObjects(PFile*);
    bool ReadObjects(PFile*);

    RefList* operator[](int count);
protected:
    RefList* next;
    RefList* prev;
};

#endif