/****************************************************************************
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** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
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#ifndef QGRAPHICSSCENELINEARINDEX_P_H
#define QGRAPHICSSCENELINEARINDEX_P_H

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

#include <QtCore/qlist.h>

#if !defined(QT_NO_GRAPHICSVIEW) || (QT_EDITION & QT_MODULE_GRAPHICSVIEW) != QT_MODULE_GRAPHICSVIEW

#include <QtCore/qrect.h>
#include <QtCore/qlist.h>
#include <QtGui/qgraphicssceneindex.h>
#include <QtGui/qgraphicsitem.h>

QT_BEGIN_NAMESPACE

class Q_AUTOTEST_EXPORT QGraphicsSceneLinearIndex : public QGraphicsSceneIndex
{
    Q_OBJECT

private:
    QRectF m_sceneRect;
    QList<QGraphicsItem*> m_items;

public:
    QGraphicsSceneLinearIndex(QGraphicsScene *scene = 0): QGraphicsSceneIndex(scene)
    {
    }

    virtual void setRect(const QRectF &rect) {
        m_sceneRect = rect;
    }

    virtual QRectF rect() const {
        return m_sceneRect;
    }

    virtual void clear() {
        m_items.clear();
    }

    virtual void addItem(QGraphicsItem *item) {
        m_items << item;
    }

    virtual void removeItem(QGraphicsItem *item) {
        m_items.removeAll(item);
    }

    virtual QList<QGraphicsItem *> estimateItems(const QRectF &rect, Qt::SortOrder order, const QTransform &deviceTransform) const {
        QList<QGraphicsItem*> result;
        foreach (QGraphicsItem *item, m_items)
            if (item->sceneBoundingRect().intersects(rect))
                result << item;
        return result;
    }

    QList<QGraphicsItem *> items(Qt::SortOrder order = Qt::AscendingOrder) const {
        return m_items;
    }
};

QT_END_NAMESPACE

#endif // QT_NO_GRAPHICSVIEW

#endif // QGRAPHICSSCENELINEARINDEX_P_H