/*

* 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:  AnalogClockWidget

*

*/

// System includes

#include <HbIconItem>

#include <HbStyleLoader>

#include <QTime>

#include <QTimer>

// User includes

#include "analogclockwidget.h"

// Constants

const int clockUpdateInterval  (1000); // msec

/*!

    \class AnalogClockWidget

    This class implements the analogclock widget which gets displayed

    in the clockmainview when the clocktype is set to analog type.

 */

/*!

    Constructor.

    \param parent The parent of type QGraphicsItem.

*/

AnalogClockWidget::AnalogClockWidget(QGraphicsItem *parent) : 

		HbWidget(parent)

{

	bool result = HbStyleLoader::registerFilePath(

			":/resource/analogclockwidget.widgetml");

	result = HbStyleLoader::registerFilePath(

			":/resource/analogclockwidget.css");

	constructPrimitives();

	mTimer = new QTimer(this);

	connect(mTimer, SIGNAL(timeout()), SLOT(tick()));

}

/*!

    Destructor.

 */

AnalogClockWidget::~AnalogClockWidget()

{

	mTimer->stop(); 

	HbStyleLoader::unregisterFilePath(":/resource/analogclockwidget.widgetml");

	HbStyleLoader::unregisterFilePath(":/resource/analogclockwidget.css");

}

/*!

	Constructs the widget primitive items.

 */

void AnalogClockWidget::constructPrimitives()

{

	if (!mClockBackground) {

		mClockBackground = new HbIconItem(

				QLatin1String("qtg_graf_clock_day_bg"), this);

		HbStyle::setItemName(

				mClockBackground, QLatin1String("clock_background"));

	}

	if (!mClockHourHand) {

		mClockHourHand = new HbIconItem(

				QLatin1String("qtg_graf_clock_day_hour"), this);

		HbStyle::setItemName(

				mClockHourHand, QLatin1String("clock_hour_hand"));

	}

	if (!mClockMinuteHand) {

		mClockMinuteHand = new HbIconItem(

				QLatin1String("qtg_graf_clock_day_min"), this);

		HbStyle::setItemName(

				mClockMinuteHand, QLatin1String("clock_minute_hand"));

	}

	if (!mClockSecondHand) {

		mClockSecondHand = new HbIconItem(

				QLatin1String("qtg_graf_clock_day_sec"), this);

		HbStyle::setItemName(

				mClockSecondHand, QLatin1String("clock_second_hand"));

	}

}

/*!

	Called on the derived classes to notify in cases when 

	the style primitives need to be updated.

 */

void AnalogClockWidget::updatePrimitives()

{

	if (!mClockBackground) {

		mClockBackground = new HbIconItem(

				QLatin1String("qtg_graf_clock_day_bg"), this);

		HbStyle::setItemName(

				mClockBackground, QLatin1String("clock_background"));

	}

	if (!mClockHourHand) {

		mClockHourHand = new HbIconItem(

				QLatin1String("qtg_graf_clock_day_hour"), this);

		HbStyle::setItemName(

				mClockHourHand, QLatin1String("clock_hour_hand"));

	}

	if (!mClockMinuteHand) {

		mClockMinuteHand = new HbIconItem(

				QLatin1String("qtg_graf_clock_day_min"), this);

		HbStyle::setItemName(

				mClockMinuteHand, QLatin1String("clock_minute_hand"));

	}

	if (!mClockSecondHand) {

		mClockSecondHand = new HbIconItem(

				QLatin1String("qtg_graf_clock_day_sec"), this);

		HbStyle::setItemName(

				mClockSecondHand, QLatin1String("clock_second_hand"));

	}

	QRectF hourHandGeometry = mClockHourHand->geometry();

	QRectF minHandGeometry = mClockMinuteHand->geometry();

	QRectF secHandGeometry = mClockSecondHand->geometry();

	if ((hourHandGeometry.width() && hourHandGeometry.height()) &&

			(minHandGeometry.width() && minHandGeometry.height()) &&

			(secHandGeometry.width() && secHandGeometry.height())) {

		// Calculate angles for clock hands.

		QTime curTime = QTime::currentTime();

		qreal seconds = 6 * curTime.second();

		qreal minutes = 6 * (curTime.minute() + seconds / 360);

		qreal hours = 30 * ((curTime.hour() % 12) + minutes / 360);

		int x = hourHandGeometry.width()/2;

		int y = hourHandGeometry.height()/2;

		mClockHourHand->setTransform(

				QTransform().translate(x, y).rotate(hours).translate(-x, -y));

		x = minHandGeometry.width()/2;

		y = minHandGeometry.height()/2;

		mClockMinuteHand->setTransform(

				QTransform().translate(x, y).rotate(minutes).translate(-x, -y));

		x = secHandGeometry.width()/2;

		y = secHandGeometry.height()/2;

		mClockSecondHand->setTransform(

				QTransform().translate(x, y).rotate(seconds).translate(-x, -y));

	}

	if (!mTimer->isActive()) {

		mTimer->start(clockUpdateInterval);

	}

}

/*!

    Updates clock visualization according to current time.

 */

void AnalogClockWidget::tick()

{

	updatePrimitives();

	update();

}

/*!

	Sets the item's geometry to rect.

 */

void AnalogClockWidget::setGeometry(const QRectF &rect)

{

	HbWidget::setGeometry(rect);

	updatePrimitives();

}

// End of file  --Don't remove this.