/*

* 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:  Analog clock widget

*

*/

#include <QGraphicsSceneMouseEvent>

#include <QTime>

#include <HbStyleLoader>

#include <HbIconItem>

#include <HbTapGesture>

#include <HbInstantFeedback>

#include "hsconfiguration.h"

#include "hsanalogclockwidget.h"

/*!

    \class HsAnalogClockWidget

    \ingroup group_hsclockwidgetplugin

    \brief Homescreen themable analog clock widget.

*/

/*!

    Constructs widget.

*/

HsAnalogClockWidget::HsAnalogClockWidget(QGraphicsItem *parent)

    : HbWidget(parent),

      mBackground(0), mHourHand(0), mMinuteHand(0), 

      mSecondHand(0)

{

    HbStyleLoader::registerFilePath(":/hsanalogclockwidget.widgetml");

    HbStyleLoader::registerFilePath(":/hsanalogclockwidget.css");

    createPrimitives();

    grabGesture(Qt::TapGesture);

}

/*!

    Destructor.

*/

HsAnalogClockWidget::~HsAnalogClockWidget()

{

    HbStyleLoader::unregisterFilePath(":/hsanalogclockwidget.widgetml");

    HbStyleLoader::unregisterFilePath(":/hsanalogclockwidget.css");

}

#ifdef COVERAGE_MEASUREMENT

#pragma CTC SKIP

#endif //COVERAGE_MEASUREMENT

void HsAnalogClockWidget::gestureEvent(QGestureEvent *event)

{

    HbTapGesture *gesture = qobject_cast<HbTapGesture *>(event->gesture(Qt::TapGesture));

    if (gesture) {

        if (gesture->state() == Qt::GestureFinished) {

            if (gesture->tapStyleHint() == HbTapGesture::Tap) {

                    HbInstantFeedback::play(HSCONFIGURATION_GET(clockWidgetTapFeedbackEffect));

                    emit clockTapped();                

            }

        }

    }

}

#ifdef COVERAGE_MEASUREMENT

#pragma CTC ENDSKIP

#endif //COVERAGE_MEASUREMENT

/*!

    Return bounding rect

*/

QRectF HsAnalogClockWidget::boundingRect() const

{   

    QRectF currRect = rect();

    currRect.setHeight(mBackground->iconItemSize().height());

    currRect.setWidth(mBackground->iconItemSize().width());

    return currRect;

}

/*!

    Return shape

*/

QPainterPath HsAnalogClockWidget::shape() const

{   

    QPainterPath path;

    path.addEllipse(boundingRect());

    return path;

}

/*!

    Updates clock visualization according to current time

 */

void HsAnalogClockWidget::tick()

{

    updatePrimitives();

}

/*!

    @copydoc HbWidget::resizeEvent()

 */

void HsAnalogClockWidget::resizeEvent(QGraphicsSceneResizeEvent *event)

{

    HbWidget::resizeEvent(event);

    updatePrimitives();   

}

/*!

    Creates all widget primitives.

 */

void HsAnalogClockWidget::createPrimitives()

{

    mBackground = new HbIconItem(QLatin1String("qtg_graf_clock_day_bg"), this);

    HbStyle::setItemName(mBackground, QLatin1String("background"));

    mHourHand = new HbIconItem(QLatin1String("qtg_graf_clock_day_hour"), this);

    HbStyle::setItemName(mHourHand, QLatin1String("hour_hand"));

    mMinuteHand = new HbIconItem(QLatin1String("qtg_graf_clock_day_min"), this);

    HbStyle::setItemName(mMinuteHand, QLatin1String("minute_hand"));

    mSecondHand = new HbIconItem(QLatin1String("qtg_graf_clock_day_sec"), this);

    HbStyle::setItemName(mSecondHand, QLatin1String("second_hand"));

}

/*!

    @copydoc HbWidget::updatePrimitives()

 */

void HsAnalogClockWidget::updatePrimitives()

{

    // 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);

    int x = mBackground->iconItemSize().width()/2;

    int y = mBackground->iconItemSize().height()/2;

    QPointF originPoint = QPointF(x, y);

    mHourHand->setTransformOriginPoint(originPoint);

    mHourHand->setRotation(h);

    mMinuteHand->setTransformOriginPoint(originPoint);

    mMinuteHand->setRotation(m);

    mSecondHand->setTransformOriginPoint(originPoint);

    mSecondHand->setRotation(s);

}