/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef ABSTRACTVIEWITEM_H
#define ABSTRACTVIEWITEM_H

#include <QModelIndex>

#include "gvbwidget.h"
#include "abstractitemview.h"
#include "listitem.h"

class QGraphicsWidget;

class AbstractViewItem : public GvbWidget
{
    Q_OBJECT
public:
    AbstractViewItem(QGraphicsWidget *parent = 0);
    virtual ~AbstractViewItem();

    virtual AbstractViewItem *newItemInstance() = 0;

    QModelIndex modelIndex() const;

    void setModelIndex(const QModelIndex &index);

    AbstractViewItem *prototype() const;
    AbstractItemView *itemView() const;
    void setItemView(AbstractItemView *itemView) ;
    virtual void updateItemContents();
    virtual void themeChange();

    virtual void setSubtreeCacheEnabled(bool enabled);

    virtual QSizeF effectiveSizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const;

    virtual void setModel(QAbstractItemModel *model) = 0;
    virtual QVariant data(int role) const = 0;
    virtual void setData(const QVariant &value, int role = Qt::DisplayRole) = 0;
    virtual void setTwoColumns(const bool enabled) = 0;

protected:
    virtual bool event(QEvent *e);

    QPersistentModelIndex m_index;

private:
    Q_DISABLE_COPY(AbstractViewItem)

    AbstractItemView *m_itemView;
    AbstractViewItem *m_prototype;

};

#endif // ABSTRACTVIEWITEM_H