/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
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** No Commercial Usage
** This file contains pre-release code and may not be distributed.
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** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
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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
** 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
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** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QDECLARATIVEGLOBAL_H
#define QDECLARATIVEGLOBAL_H

#include <QtCore/qglobal.h>
#include <QtCore/QObject>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Declarative)

#define DEFINE_BOOL_CONFIG_OPTION(name, var) \
    static bool name() \
    { \
        static enum { Yes, No, Unknown } status = Unknown; \
        if (status == Unknown) { \
            QByteArray v = qgetenv(#var); \
            bool value = !v.isEmpty() && v != "0" && v != "false"; \
            if (value) status = Yes; \
            else status = No; \
        } \
        return status == Yes; \
    }

struct QDeclarativeGraphics_DerivedObject : public QObject
{
    void setParent_noEvent(QObject *parent) {
        bool sce = d_ptr->sendChildEvents;
        d_ptr->sendChildEvents = false;
        setParent(parent);
        d_ptr->sendChildEvents = sce;
    }
};

/*!
    Makes the \a object a child of \a parent.  Note that when using this method,
    neither \a parent nor the object's previous parent (if it had one) will
    receive ChildRemoved or ChildAdded events.
*/
inline void QDeclarative_setParent_noEvent(QObject *object, QObject *parent)
{
    static_cast<QDeclarativeGraphics_DerivedObject *>(object)->setParent_noEvent(parent);
}

QT_END_NAMESPACE

QT_END_HEADER

#endif // QDECLARATIVEGLOBAL_H