/*

* Copyright (c) 2008 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:  Clock widget

*

*/

#include "hsanalogclockwidget.h"

#include <QGraphicsGridLayout>

#include <QTime>

#include <QDir>

namespace

{

    const char PLUGIN_PATH[] = "/hsresources/plugins/styleplugins/hsanalogclockstyleplugin.dll";

}

/*!

    \class HsAnalogClockWidget

    \ingroup group_hsclockwidgetplugin

    \brief Homescreen themable analog clock widget.

*/

/*!

    \fn HsAnalogClockWidget::HsAnalogClockWidget(QGraphicsItem *parent, Qt::WindowFlags flags)

    Constructs widget.

*/

HsAnalogClockWidget::HsAnalogClockWidget(const QString &stylePluginName, QGraphicsItem *parent)

    : HbWidget(parent),

      mClockBackground(0), 

      mClockHourHand(0), 

      mClockMinuteHand(0)

{

    if (stylePluginName.isEmpty()) {

        mStylePluginName = QDir::currentPath() + PLUGIN_PATH;

    } else {

        mStylePluginName = stylePluginName;

    }

    setPluginBaseId(style()->registerPlugin(mStylePluginName));

    createPrimitives();

    updatePrimitives();

}

/*!

    \fn HsAnalogClockWidget::~HsAnalogClockWidget()

    Destructor.

*/

HsAnalogClockWidget::~HsAnalogClockWidget()

{

    delete mClockBackground;

    delete mClockHourHand;

    delete mClockMinuteHand;

    style()->unregisterPlugin(mStylePluginName);    

}

/*!

    @copydoc HbWidget::resizeEvent()

 */

void HsAnalogClockWidget::resizeEvent(QGraphicsSceneResizeEvent *event)

{

    QGraphicsWidget::resizeEvent(event);

    updatePrimitives();   

}

/*!

    Creates all widget primitives.

 */

void HsAnalogClockWidget::createPrimitives()

{

    if (pluginBaseId()==-1) {

        return;

    }

    if (!mClockBackground) {

        mClockBackground = style()->createPrimitive((HbStyle::Primitive)(pluginBaseId()), this);

    }

    if (!mClockHourHand) {

        mClockHourHand = style()->createPrimitive((HbStyle::Primitive)(pluginBaseId()+hourHandItemIndex), this);

    }

    if (!mClockMinuteHand) {

        mClockMinuteHand = style()->createPrimitive((HbStyle::Primitive)(pluginBaseId()+minuteHandItemIndex), this);

    }

}

/*!

    @copydoc HbWidget::updatePrimitives()

 */

void HsAnalogClockWidget::updatePrimitives()

{

    if (pluginBaseId()==-1) {

        return;

    }

    // Calculate angles for clock hands.

    QTime time = QTime::currentTime();

    qreal s = 6 * time.second();

    qreal m = 6 * (time.minute() + s/360);

    qreal h = 30 * ((time.hour() % 12) + m/360)-90;

    HsAnalogClockStyleOption option;

    initStyleOption(&option);

    option.mM = m;

    option.mH = h;

    if (mClockBackground) {

        style()->updatePrimitive(mClockBackground, (HbStyle::Primitive)(pluginBaseId()), &option);

    }

    if (mClockHourHand) {

        style()->updatePrimitive(mClockHourHand, (HbStyle::Primitive)(pluginBaseId()+hourHandItemIndex), &option);

    }

    if (mClockMinuteHand) {

        style()->updatePrimitive(mClockMinuteHand, (HbStyle::Primitive)(pluginBaseId()+minuteHandItemIndex), &option);

    }

}

/*!

    Updates clock visualization according to current time

 */

void HsAnalogClockWidget::tick()

{

    updatePrimitives();

    update();

}

/*!

    Update primitives also here because a problem in Hb - to be removed later on

 */

void HsAnalogClockWidget::polish( HbStyleParameters& params ) 

{  

    HbWidget::polish(params); 

    updatePrimitives();

}