/****************************************************************************
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Public License version 3.0 as published by the Free Software Foundation
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** $QT_END_LICENSE$
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****************************************************************************/

#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 {
namespace QtQuick1 {

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 QtQuick1
} // namespace QmlJSDebugger

#endif // BOUNDINGRECTHIGHLIGHTER_H