/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

#include <QGraphicsLinearLayout>

#include <QGraphicsColorizeEffect>

#include <QPropertyAnimation>

#include <HbIconItem>

#include "hspageindicatoritem.h"

namespace

{

    const char gNormalIconName[]    = "qtg_graf_hspage_normal";

    const char gHighlightIconName[] = "qtg_graf_hspage_highlight";

}

/*!

    \class HsPageIndicatorItem

    \ingroup group_hsutils

    \brief 

*/

/*!

*/

HsPageIndicatorItem::HsPageIndicatorItem(bool active, QGraphicsItem *parent)

  : HbWidget(parent),

    mIconItem(0),

    mIsActive(active)

{

    mIconItem = new HbIconItem;

    if (active) {

        mIconItem->setIcon(HbIcon(gHighlightIconName));

    } else {

        mIconItem->setIcon(HbIcon(gNormalIconName));

    }

    QGraphicsLinearLayout *layout = new QGraphicsLinearLayout;

    layout->setContentsMargins(0, 0, 0, 0);

    layout->addItem(mIconItem);

    setLayout(layout);

    QGraphicsColorizeEffect *effect = new QGraphicsColorizeEffect;

    effect->setColor(Qt::white);

    effect->setStrength(0);

    effect->setEnabled(false);

    setGraphicsEffect(effect);

}

/*!

*/

HsPageIndicatorItem::~HsPageIndicatorItem()

{

}

/*!

*/

void HsPageIndicatorItem::setActive(bool active)

{

    if (mIsActive != active) {

        mIsActive = active;

        if (mIsActive) {

            mIconItem->setIcon(HbIcon(gHighlightIconName));

            startAnimation();

        } else {

            mIconItem->setIcon(HbIcon(gNormalIconName));

        }

    }

}

/*!

*/

bool HsPageIndicatorItem::isActive() const

{

    return mIsActive;

}

/*!

*/

bool HsPageIndicatorItem::isAnimationRunning() const

{

    return graphicsEffect()->isEnabled();

}

/*!

*/

void HsPageIndicatorItem::startAnimation()

{

    graphicsEffect()->setEnabled(true);

    setTransformOriginPoint(rect().center());

    QPropertyAnimation *animation = 

        new QPropertyAnimation(graphicsEffect(), "strength");

    animation->setDuration(800);

    animation->setKeyValueAt(0.2, 1);

    animation->setEndValue(0);

    connect(animation, SIGNAL(finished()), SLOT(animationFinished()));

    animation->start(QAbstractAnimation::DeleteWhenStopped);

}

/*!

*/

void HsPageIndicatorItem::animationFinished()

{

    graphicsEffect()->setEnabled(false);

}