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

**

** 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 HBTREEVIEW_H

#define HBTREEVIEW_H

#include <hbabstractitemview.h>

#include <hbglobal.h>

class HbTreeViewPrivate;

class HbAbstractItemContainer;

class HbAbstractViewItem;

class HbTreeModelIterator;

QT_BEGIN_NAMESPACE

class QModelIndex;

class QGraphicsSceneMouseEvent;

class QAbstractItemModel;

class QItemSelection;

QT_END_NAMESPACE

class HB_WIDGETS_EXPORT HbTreeView : public HbAbstractItemView

{

    Q_OBJECT

    Q_PROPERTY(qreal indentation READ indentation WRITE setIndentation)

public:

    explicit HbTreeView(QGraphicsItem *parent = 0);

    virtual ~HbTreeView();    

    virtual void setModel(QAbstractItemModel *model, HbAbstractViewItem *prototype = 0);

    virtual void scrollTo(const QModelIndex &index, ScrollHint hint = EnsureVisible);

    void setExpanded(const QModelIndex &index, bool expanded);

    bool isExpanded(const QModelIndex &index) const;

    void setIndentation(qreal indentation);

    qreal indentation() const;

public slots:

    void reset();

    void setRootIndex(const QModelIndex &index);

protected:

    HbTreeView(HbTreeViewPrivate &dd, HbAbstractItemContainer *container, QGraphicsItem *parent);

    virtual void currentSelectionChanged(const QItemSelection &selected, const QItemSelection &deselected);

    virtual void rowsInserted(const QModelIndex &parent, int start, int end);

    virtual void rowsAboutToBeRemoved(const QModelIndex &index, int start, int end);

    virtual void rowsRemoved(const QModelIndex &parent, int start, int end);

    virtual void columnsInserted(const QModelIndex &parent, int start, int end);

    virtual void columnsRemoved(const QModelIndex &parent, int start, int end);

    virtual void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);

private:

    Q_DISABLE_COPY(HbTreeView)

    Q_DECLARE_PRIVATE_D(d_ptr, HbTreeView)

};

#endif // HBTREEVIEW_H