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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Declarative 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.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qsglineextruder_p.h"
#include <cmath>

QSGLineExtruder::QSGLineExtruder(QObject *parent) :
    QSGParticleExtruder(parent), m_mirrored(false)
{
}

QPointF QSGLineExtruder::extrude(const QRectF &r)
{
    qreal x,y;
    if (!r.height()){
        x = r.width() * ((qreal)rand())/RAND_MAX;
        y = 0;
    }else{
        y = r.height() * ((qreal)rand())/RAND_MAX;
        if (!r.width()){
            x = 0;
        }else{
            x = r.width()/r.height() * y;
            if (m_mirrored)
                x = r.width() - x;
        }
    }
    return QPointF(x,y);
}