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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
** 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef BOUNDINGRECTHIGHLIGHTER_H
#define BOUNDINGRECTHIGHLIGHTER_H

#include "livelayeritem.h"

#include <QtCore/QObject>
#include <QtCore/QWeakPointer>

QT_FORWARD_DECLARE_CLASS(QGraphicsItem)
QT_FORWARD_DECLARE_CLASS(QPainter)
QT_FORWARD_DECLARE_CLASS(QWidget)
QT_FORWARD_DECLARE_CLASS(QStyleOptionGraphicsItem)
QT_FORWARD_DECLARE_CLASS(QTimer)

namespace QmlJSDebugger {

class QDeclarativeViewInspector;
class BoundingBox;

class BoundingRectHighlighter : public LiveLayerItem
{
    Q_OBJECT
public:
    explicit BoundingRectHighlighter(QDeclarativeViewInspector *view);
    ~BoundingRectHighlighter();
    void clear();
    void highlight(QList<QGraphicsObject*> items);
    void highlight(QGraphicsObject* item);

private slots:
    void refresh();
    void itemDestroyed(QObject *);

private:
    BoundingBox *boxFor(QGraphicsObject *item) const;
    void highlightAll();
    BoundingBox *createBoundingBox(QGraphicsObject *itemToHighlight);
    void removeBoundingBox(BoundingBox *box);
    void freeBoundingBox(BoundingBox *box);

private:
    Q_DISABLE_COPY(BoundingRectHighlighter)

    QDeclarativeViewInspector *m_view;
    QList<BoundingBox* > m_boxes;
    QList<BoundingBox* > m_freeBoxes;
};

class BoundingBox : public QObject
{
    Q_OBJECT
public:
    explicit BoundingBox(QGraphicsObject *itemToHighlight, QGraphicsItem *parentItem,
                         QObject *parent = 0);
    ~BoundingBox();
    QWeakPointer<QGraphicsObject> highlightedObject;
    QGraphicsPolygonItem *highlightPolygon;
    QGraphicsPolygonItem *highlightPolygonEdge;

private:
    Q_DISABLE_COPY(BoundingBox)

};

class BoundingBoxPolygonItem : public QGraphicsPolygonItem
{
public:
    explicit BoundingBoxPolygonItem(QGraphicsItem *item);
    int type() const;
};

} // namespace QmlJSDebugger

#endif // BOUNDINGRECTHIGHLIGHTER_H