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

**

** 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 "hbeffectgroup_p.h"

#include "hbeffectdef_p.h"

#include "hbeffectdropshadow_p.h"

#include "hbeffectfilter_p.h"

#include "hbvgchainedeffect_p.h"

#include "hbvgshadoweffect_p.h"

#include "hbvgoutlineeffect_p.h"

#include <QGraphicsItem>

#include <QtDebug>

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

// HbEffectDropShadow

HbEffectDropShadow::HbEffectDropShadow(

    const HbEffectFxmlFilterData &data,

    QGraphicsItem *item,

    HbEffectGroup *group) :

        HbEffectFilter(0, item, group),

        mAnimationO(0),

        mAnimationS(0),

        mAnimationOutlineX(0),

        mAnimationOutlineY(0),

        mAnimationOffsetX(0),

        mAnimationOffsetY(0),

        mAnimationC(0),

        mVgOutline(0),

        mType(HbEffectDropShadow::outline)

{

    // Default values from FXML spec

    qreal opacity_start = 1;

    qreal opacity_end = 1;

    qreal steepness_start = 20.0f;

    qreal steepness_end = 20.0f;

    qreal outline_x_start = 1.0f;

    qreal outline_x_end = 1.0f;

    qreal outline_y_start = 1.0f;

    qreal outline_y_end = 1.0f;

    qreal offset_x_start = 0.0f;

    qreal offset_x_end = 0.0f;

    qreal offset_y_start = 0.0f;

    qreal offset_y_end = 0.0f;

    QColor color_start(0, 0, 0);

    QColor color_end(0, 0, 0);

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

    // Handle FXML parameters

    Q_FOREACH(const HbEffectFxmlParamData &param, params) {

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

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

        }

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

            mAnimationC = createAnimation(param, color_start, color_end, group);

        }

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

            mAnimationOffsetX = createAnimation(param, offset_x_start, offset_x_end, group);

            // If offset parameters are used, it is a drop shadow effect.

            mType = dropShadow;

        }

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

            mAnimationOffsetY = createAnimation(param, offset_y_start, offset_y_end, group);

            // If offset parameters are used, it is a drop shadow effect.

            mType = dropShadow;

        }

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

            mAnimationS = createAnimation(param, steepness_start, steepness_end, group);

        }

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

            mAnimationOutlineX = createAnimation(param, outline_x_start, outline_x_end, group);

        }

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

            mAnimationOutlineY = createAnimation(param, outline_y_start, outline_y_end, group);

        }

    }

    // Create VG effect if there were effect parameters defined

    if (mEffectDefined) {

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

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

        if (mType == dropShadow) {

            mVgOutline = new HbVgShadowEffect();

        } else {

            mVgOutline = new HbVgOutlineEffect();

        }

        mVgOutline->setCaching(true);

        chain->add(mVgOutline);

        // Set initial values for the effect

        mVgOutline->setOpacity(opacity_start);

        mVgOutline->setOutline(outline_x_start, outline_y_start);

        mVgOutline->setColor(color_start);

        mVgOutline->setSteepness(steepness_start);

        mVgOutline->setOffset(offset_x_start, offset_y_start);

    }

}

HbEffectDropShadow::~HbEffectDropShadow()

{

}

QString HbEffectDropShadow::name() const

{

    return mType == dropShadow ? HB_EFFECT_NAME_DROP_SHADOW : HB_EFFECT_NAME_OUTLINE;

}

void HbEffectDropShadow::updateFilterEffect()

{

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

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

        QPointF outline = mVgOutline->outline();

        QPointF offset = mVgOutline->offset();

        if (mAnimationOutlineX) {

            outline.setX(qVariantValue<qreal>(mAnimationOutlineX->currentValue()));

        }

        if (mAnimationOutlineY) {

            outline.setY(qVariantValue<qreal>(mAnimationOutlineY->currentValue()));

        }

        if (mAnimationOffsetX) {

            offset.setX(qVariantValue<qreal>(mAnimationOffsetX->currentValue()));

        }

        if (mAnimationOffsetY) {

            offset.setY(qVariantValue<qreal>(mAnimationOffsetY->currentValue()));

        }

        mVgOutline->setOutline(outline);

        mVgOutline->setOffset(offset);

        if (mAnimationS) {

            mVgOutline->setSteepness(qVariantValue<qreal>(mAnimationS->currentValue()));

        }

        if (mAnimationC) {

            mVgOutline->setColor(qVariantValue<QColor>(mAnimationC->currentValue()));            

        }

        if (mAnimationO) {

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

        }

    }

}

#endif