/****************************************************************************

**

** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (developer.feedback@nokia.com)

**

** This file is part of the HbCore module of the UI Extensions for Mobile.

**

** 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.

**

** If you have questions regarding the use of this file, please contact

** Nokia at developer.feedback@nokia.com.

**

****************************************************************************/

#include "hbvggloweffect_p.h"

#include "hbvgblureffect_p_p.h"

#include <QPainter>

/*!

 * \class HbVgGlowEffect

 *

 * \brief OpenVG-based inner glow filter effect.

 *

 * \internal

 */

HbVgGlowEffect::HbVgGlowEffect(QObject *parent)

    : HbVgBlurEffect(parent)

{

}

HbVgGlowEffect::HbVgGlowEffect(HbVgBlurEffectPrivate &dd, QObject *parent)

    : HbVgBlurEffect(dd, parent)

{

}

HbVgGlowEffect::~HbVgGlowEffect()

{

}

void HbVgGlowEffect::performEffect(QPainter *painter,

                                   const QPointF &offset,

                                   const QVariant &vgImage,

                                   const QSize &vgImageSize)

{

#ifdef HB_EFFECTS_OPENVG

    Q_D(HbVgBlurEffect);

    QPixmap blurred = makeBlur(vgImage, vgImageSize);

    painter->drawPixmap(offset, d->srcPixmap);

    vgSeti(VG_BLEND_MODE, VG_BLEND_ADDITIVE);

    painter->drawPixmap(offset, blurred);

    // Set the blend mode back to the default to make sure that it

    // does not affect other effects in the chain coming right after

    // this one.

    vgSeti(VG_BLEND_MODE, VG_BLEND_SRC_OVER);

#else

    Q_UNUSED(painter);

    Q_UNUSED(offset);

    Q_UNUSED(vgImage);

    Q_UNUSED(vgImageSize);

#endif

}