/*

* 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: 

*

*/

// analogclock.cpp

#include <QTime>

#include <QTimer>

#include <QPainter>

#include <QStyleOptionGraphicsItem>

#include <QGraphicsWidget>

#include <hbiconitem.h>

#include <hbstackedlayout.h>

#include "analogclock.h"

const QString KPrefix(":/clock/");

const QString KUnderScore("_");

const QString KFaceDay(":/clock/analog_face_day");

const QString KHourDay(":/clock/hour_hand_day");

const QString KMinDay(":/clock/minute_hand_day");

const QString KFaceNight("analog_face_night");

const QString KHourNight("hour_hand_night");

const QString KMinNight("minute_hand_night");

AnalogClock::AnalogClock(QGraphicsWidget *parent)

:HbWidget(parent),

 mIsDay(true),

 mFirstDraw(true),

 mCurrentClock(0)

{

	// Add the required effects.

	HbEffect::add(this, 

	              QString(":/clock/hide_widget.fxml"), 

	              "hide_widget");

	// Construct the images here.

	constructImages();

	// A single shot timer after which the hands are updated to show the

	// correct time.

	// TODO: QTimer::singleShot(500, this, SLOT(updateDisplay()));

}

AnalogClock::~AnalogClock()

{

	// No implementation yet.

}

void AnalogClock::showPrev()

{

	mCurrentClock--;

	if (mCurrentClock < 0) {

		mCurrentClock = 3;

	}

	// Start the effect.

	HbEffect::start(this, "hide_widget", this, "widget_hidden");

}

void AnalogClock::showNext()

{

	mCurrentClock++;

	mCurrentClock = mCurrentClock % 4;

	// Start the effect.

	HbEffect::start(this, "hide_widget", this, "widget_hidden");

}

void AnalogClock::updateDisplay()

{

	// Take the current time.

	bool changeClock = false;

	QTime timeNow = QTime::currentTime();

	int hourNow = timeNow.hour();

	if (17 < hourNow || 6 > hourNow) {

		if (mIsDay) {

			// It was previously day. We need to change the clock

			changeClock = true;

		}

		mIsDay = false;

	} else {

		if (!mIsDay) {

			// It was previously night. We need to change the clock

			changeClock = true;

		}

		mIsDay = true;

	}

	if (changeClock) {

		if (mIsDay) {

			mClockFace->setIconName(mFaceName);

			mHourHand->setIconName(mHourName);

			mMinuteHand->setIconName(mMinuteName);

		} else {

			mClockFace->setIconName(mFaceName);

			mHourHand->setIconName(mHourName);

			mMinuteHand->setIconName(mMinuteName);

		}

	}

	// Calculate the rotation angle for hour hand.

	qreal hourAngle = 30.0*((timeNow.hour()+timeNow.minute()/60.0)); 

	hourAngle += 270;

	// Rotate the hour hand.

	mHourHand->setTransform(

			QTransform().translate(mHourHand->iconItemSize().width()/2, 

					mHourHand->iconItemSize().height()/2).rotate(hourAngle)

					.translate(-mHourHand->iconItemSize().width()/2,

							-mHourHand->iconItemSize().height()/2));

	// Rotate the minute hand.

	mMinuteHand->setTransform(

			QTransform().translate(mMinuteHand->iconItemSize().width()/2, 

					mMinuteHand->iconItemSize().height()/2)

					.rotate(6.0*(timeNow.minute()+timeNow.second()/60.0))

					.translate(-mMinuteHand->iconItemSize().width()/2,

							-mMinuteHand->iconItemSize().height()/2));

}

void AnalogClock::paint(QPainter *painter, 

                        const QStyleOptionGraphicsItem *option,

                        QWidget *widget)

{

	Q_UNUSED(painter)

	Q_UNUSED(option)

	Q_UNUSED(widget)

	if (mFirstDraw) {

		mFirstDraw = false;

		QTime timeNow = QTime::currentTime();

		int hourNow = timeNow.hour();

		// Calculate the rotation angle for hour hand.

		qreal hourAngle = 30.0 * ((timeNow.hour() + timeNow.minute() / 60.0)); 

		hourAngle += 270;

		// Rotate the hour hand.

		mHourHand->setTransform(

				QTransform().translate(mHourHand->iconItemSize().width()/2, 

						mHourHand->iconItemSize().height()/2).rotate(hourAngle)

						.translate(-mHourHand->iconItemSize().width()/2,

								-mHourHand->iconItemSize().height()/2));

		// Rotate the minute hand.

		mMinuteHand->setTransform(

				QTransform().translate(mMinuteHand->iconItemSize().width()/2, 

						mMinuteHand->iconItemSize().height()/2)

						.rotate(6.0*(timeNow.minute()+timeNow.second()/60.0))

						.translate(-mMinuteHand->iconItemSize().width()/2,

								-mMinuteHand->iconItemSize().height()/2));

	}

}

void AnalogClock::constructImages()

{

	mFaceName.append(KFaceDay);

	mHourName.append(KHourDay);

	mMinuteName.append(KMinDay);

	mParentLayout = new HbStackedLayout(this);

	mClockFace = new HbIconItem(mFaceName, this);

	mHourHand = new HbIconItem(mHourName, this);

	mMinuteHand = new HbIconItem(mMinuteName, this);

	mParentLayout->addItem(mClockFace);

	mParentLayout->addItem(mHourHand);

	mParentLayout->addItem(mMinuteHand);

	setLayout(mParentLayout);

}

void AnalogClock::widget_hidden(const HbEffect::EffectStatus &status)

{

	Q_UNUSED(status)

	QString clockNum;

	clockNum = clockNum.setNum(mCurrentClock);

	mFaceName.clear();

	mHourName.clear();

	mMinuteName.clear();

	if (mIsDay) {

		mFaceName.append(KPrefix);

		mFaceName.append(clockNum);

		mFaceName.append(KUnderScore);

		mFaceName.append(KFaceDay);

		mHourName.append(KPrefix);

		mHourName.append(clockNum);

		mHourName.append(KUnderScore);

		mHourName.append(KHourDay);

		mMinuteName.append(KPrefix);

		mMinuteName.append(clockNum);

		mMinuteName.append(KUnderScore);

		mMinuteName.append(KMinDay);

	} else {

		mFaceName.append(KPrefix);

		mFaceName.append(clockNum);

		mFaceName.append(KUnderScore);

		mFaceName.append(KFaceNight);

		mHourName.append(KPrefix);

		mHourName.append(clockNum);

		mHourName.append(KUnderScore);

		mHourName.append(KHourNight);

		mMinuteName.append(KPrefix);

		mMinuteName.append(clockNum);

		mMinuteName.append(KUnderScore);

		mMinuteName.append(KMinNight);

	}

	mClockFace->setIconName(mFaceName);

	mHourHand->setIconName(mHourName);

	mMinuteHand->setIconName(mMinuteName);

	HbEffect::add(this, QString(":/clock/show_widget.fxml"), "show_widget");

	HbEffect::start(this, "show_widget");

}

// End of file