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/****************************************************************************
**
** 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include <QtGui/qgraphicslayout.h>

class FlowLayout : public QGraphicsLayout
{
public:
    FlowLayout();
    inline void addItem(QGraphicsLayoutItem *item);
    void insertItem(int index, QGraphicsLayoutItem *item);
    void setSpacing(Qt::Orientations o, qreal spacing);
    qreal spacing(Qt::Orientation o) const;

    // inherited functions
    void setGeometry(const QRectF &geom);

    int count() const;
    QGraphicsLayoutItem *itemAt(int index) const;
    void removeAt(int index);

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

private:
    qreal doLayout(const QRectF &geom, bool applyNewGeometry) const;
    QSizeF minSize(const QSizeF &constraint) const;
    QSizeF prefSize() const;
    QSizeF maxSize() const;

    QList<QGraphicsLayoutItem*> m_items;
    qreal m_spacing[2];
};


inline void FlowLayout::addItem(QGraphicsLayoutItem *item)
{
    insertItem(-1, item);
}