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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module 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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QGRAPHICSLAYOUTITEM_P_H
#define QGRAPHICSLAYOUTITEM_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of qapplication_*.cpp, qwidget*.cpp and qfiledialog.cpp.  This header
// file may change from version to version without notice, or even be removed.
//
// We mean it.
//

#include <QtCore/QSizeF>
#include <QtGui/QSizePolicy>

QT_BEGIN_NAMESPACE

class QGraphicsLayoutItem;
class Q_AUTOTEST_EXPORT QGraphicsLayoutItemPrivate
{
    Q_DECLARE_PUBLIC(QGraphicsLayoutItem)
public:
    virtual ~QGraphicsLayoutItemPrivate();
    QGraphicsLayoutItemPrivate(QGraphicsLayoutItem *parent, bool isLayout);
    void init();
    QSizeF *effectiveSizeHints(const QSizeF &constraint) const;
    QGraphicsItem *parentItem() const;
    void ensureUserSizeHints();
    void setSize(Qt::SizeHint which, const QSizeF &size);
    enum SizeComponent { Width, Height };
    void setSizeComponent(Qt::SizeHint which, SizeComponent component, qreal value);

    QSizePolicy sizePolicy;
    QGraphicsLayoutItem *parent;

    QSizeF *userSizeHints;
    mutable QSizeF cachedSizeHints[Qt::NSizeHints];
    mutable QSizeF cachedConstraint;

    mutable quint32 sizeHintCacheDirty : 1;
    quint32 isLayout : 1;
    quint32 ownedByLayout : 1;

    QGraphicsLayoutItem *q_ptr;
    QRectF geom;
    QGraphicsItem *graphicsItem;
};

QT_END_NAMESPACE

#endif //QGRAPHICSLAYOUTITEM_P_H