/****************************************************************************

**

** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (developer.feedback@nokia.com)

**

** This file is part of the HbWidgets module of the UI Extensions for Mobile.

**

** GNU Lesser General Public License Usage

** 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 developer.feedback@nokia.com.

**

****************************************************************************/

#ifndef HBTREELAYOUTPRIVATE_P_P_H

#define HBTREELAYOUTPRIVATE_P_P_H

#include <QList>

QT_BEGIN_NAMESPACE

class QGraphicsLayoutItem;

QT_END_NAMESPACE

class HbTreeLayout;

/*

    \private

    \class HbTreeLayout

    \brief HbTreeLayout manages geometries of hierarchical tree view contents.

*/

class HbTreeLayoutPrivate

{

public:

    struct TreeItem

    {

        QGraphicsLayoutItem* mItem;

        int mLevel;

    };

    HbTreeLayoutPrivate();

    ~HbTreeLayoutPrivate();

    bool uniformSizedItems() const;

    qreal calculateSmallestItemHeight() const;

    void insertItem(int index, QGraphicsLayoutItem *item, int level, bool animate);

public:

    QList<TreeItem> mItems;

    HbTreeLayout *q_ptr;

    qreal mIndentation;

    mutable qreal mSmallestItemHeight;

    static const qreal INVALID_ITEM_HEIGHT;

};

#endif // HBTREELAYOUTPRIVATE_P_P_H