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

**

** 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 <hbglobal.h>

#ifdef HB_FILTER_EFFECTS

#include "hbeffecthsl_p.h"

#include "hbeffectgroup_p.h"

#include "hbeffectdef_p.h"

#include "hbvgchainedeffect_p.h"

#include "hbvghsleffect_p.h"

#include "hbeffectfilter_p.h"

#include <QGraphicsItem>

#include <QtDebug>

// -----------------------------------------------------------------------------

// HbEffectHsl

HbEffectHsl::HbEffectHsl(

    const HbEffectFxmlFilterData &data,

    QGraphicsItem *item,

    HbEffectGroup *group) :

        HbEffectFilter(0, item, group),

        mAnimationO(0),

        mAnimationH(0),

        mAnimationS(0),

        mAnimationL(0),

        mVgHsl(0)

{

    // Default values of if something is not passed in FXML

    qreal opacity_start = 1;

    qreal opacity_end = 1;

    qreal hue_start = 0;

    qreal hue_end = 0;

    qreal saturation_start = 1;

    qreal saturation_end = 1;

    qreal lightness_start = 0;

    qreal lightness_end = 0;

    QList<HbEffectFxmlParamData> params = data.paramData();

    // Handle FXML parameters

    Q_FOREACH(const HbEffectFxmlParamData &param, params) {

        if (param.name() == FXML_KEYWORD_HSL_OPACITY) {

            mAnimationO = createAnimation(param, opacity_start, opacity_end, group);

        }

        else if (param.name() == FXML_KEYWORD_HSL_HUE) {

            mAnimationH = createAnimation(param, hue_start, hue_end, group);

        }

        else if (param.name() == FXML_KEYWORD_HSL_SATURATION) {

            mAnimationS = createAnimation(param, saturation_start, saturation_end, group);

        }

        else if (param.name() == FXML_KEYWORD_HSL_LIGHTNESS) {

            mAnimationL = createAnimation(param, lightness_start, lightness_end, group);

        }

    }

    // Create VG effect if there were effect parameters defined

    if (mEffectDefined) {

        // Add blur effect to the filter effect chain in the effect group

        HbVgChainedEffect *chain = HbEffectAbstract::group()->vgEffect();

        mVgHsl = new HbVgHslEffect();

        mVgHsl->setCaching(true);

        chain->add(mVgHsl);

        // Set initial values for the effect

        mVgHsl->setOpacity(opacity_start);

        mVgHsl->setHue(hue_start);

        mVgHsl->setSaturation(saturation_start);

        mVgHsl->setLightness(lightness_start);

    }

}

HbEffectHsl::~HbEffectHsl()

{

}

QString HbEffectHsl::name() const

{

    return HB_EFFECT_NAME_HSL;

}

void HbEffectHsl::updateFilterEffect()

{

    // Only update the graphics effect if the effect is running

    if (group()->isRunning()) {

        if (mAnimationO) {

            mVgHsl->setOpacity(qVariantValue<qreal>(mAnimationO->currentValue()));

        }

        if (mAnimationH) {

            mVgHsl->setHue(qVariantValue<qreal>(mAnimationH->currentValue()));

        }

        if (mAnimationS) {

            mVgHsl->setSaturation(qVariantValue<qreal>(mAnimationS->currentValue()));

        }

        if (mAnimationL) {

            mVgHsl->setLightness(qVariantValue<qreal>(mAnimationL->currentValue()));

        }

    }

}

#endif