boundingrecthighlighter.h 3.03 KB
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/**************************************************************************
**
** This file is part of Qt Creator
**
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** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
**
** GNU Lesser General Public License Usage
**
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** 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.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
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** 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.
**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
**************************************************************************/

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#ifndef BOUNDINGRECTHIGHLIGHTER_H
#define BOUNDINGRECTHIGHLIGHTER_H

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#include "livelayeritem.h"
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#include <QObject>
#include <QWeakPointer>
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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)
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namespace QmlJSDebugger {
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class QDeclarativeViewInspector;
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class BoundingBox;
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class BoundingRectHighlighter : public LiveLayerItem
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{
    Q_OBJECT
public:
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    explicit BoundingRectHighlighter(QDeclarativeViewInspector *view);
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    ~BoundingRectHighlighter();
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    void clear();
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    void highlight(QList<QGraphicsObject*> items);
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    void highlight(QGraphicsObject* item);

private slots:
    void refresh();
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    void itemDestroyed(QObject *);
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private:
    BoundingBox *boxFor(QGraphicsObject *item) const;
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    void highlightAll();
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    BoundingBox *createBoundingBox(QGraphicsObject *itemToHighlight);
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    void removeBoundingBox(BoundingBox *box);
    void freeBoundingBox(BoundingBox *box);
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private:
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    Q_DISABLE_COPY(BoundingRectHighlighter)
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    QDeclarativeViewInspector *m_view;
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    QList<BoundingBox* > m_boxes;
    QList<BoundingBox* > m_freeBoxes;
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};

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

private:
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    Q_DISABLE_COPY(BoundingBox)
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};

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

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} // namespace QmlJSDebugger
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#endif // BOUNDINGRECTHIGHLIGHTER_H