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

**

** 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 HbCore 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 HBANCHORLAYOUT_H

#define HBANCHORLAYOUT_H

#include <QGraphicsLayout>

#include <hbglobal.h>

#include <hbnamespace.h>

class HbAnchorLayoutPrivate;

class HbAnchor;

class HB_CORE_EXPORT HbAnchorLayout : public QGraphicsLayout

{

public:

    typedef Hb::Edge Edge;

    explicit HbAnchorLayout(QGraphicsLayoutItem *parent = 0);

    virtual ~HbAnchorLayout();

    bool setAnchor(

        QGraphicsLayoutItem *startItem,

        Edge startEdge,

        QGraphicsLayoutItem *endItem,

        Edge endEdge,

        qreal value);

    bool removeAnchor(

        QGraphicsLayoutItem *startItem,

        Edge startEdge,

        QGraphicsLayoutItem *endItem,

        Edge endEdge);

    void removeAt(int index);

    void removeItem(QGraphicsLayoutItem* item);

    void setGeometry(const QRectF &rect);

    int count() const;

    QGraphicsLayoutItem *itemAt(int index) const;

    int indexOf(const QGraphicsLayoutItem* item) const;

    bool isValid() const;

    void invalidate();

    virtual void widgetEvent(QEvent *e);

protected:

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

protected:

    HbAnchorLayoutPrivate * const d_ptr;

private:

    Q_DISABLE_COPY(HbAnchorLayout)

    Q_DECLARE_PRIVATE_D(d_ptr, HbAnchorLayout)

    friend class HbAnchorLayoutDebug;

};

#endif