/*

* Copyright (c) 2009 - 2010 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:  Container for oled analog clock.

*

*/

#include "snsroledanalogclockcontainer.h"

#include <QDebug>

#include <QGraphicsLinearLayout>

#include <QTimer>

#include <QTime>

#include <hblabel.h>

#include <hbextendedlocale.h>

#include "snsroledclockwidget.h"

#include "snsrindicatorwidget.h"

/*!

    \class SnsrOledAnalogClockContainer

    \ingroup group_snsrbigclockscreensaverplugin

    \brief Container used for preparing layout for oled analog clock.

 */

const char *gOledAnalogLayoutDocml = ":/xml/snsrbigclockscreensaveroledanalog.docml";

extern const char *gPortraitSectionName;

extern const char *gLandscapeSectionName;

extern const char *gMainViewName;

extern const char *gMainContainerName;

extern const char *gClockContainerName;

extern const char *gIndicatorWidgetName;

extern const char *gDateLabelName;

extern const char *gDateFormatVerticalStr;

extern const char *gDateFormatHorizontalStr;

const char *gOledAnalogClockWidgetName = "oledAnalogClockWidget";

/*!

    Constructs a new SnsrOledAnalogClockContainer.

 */

SnsrOledAnalogClockContainer::SnsrOledAnalogClockContainer() :

    SnsrBigClockContainer(), mClockContainer(0), mOledClockWidget(0),

    mDateLabel(0), mDestPosition(QPointF()), mInitialize(false)

{

    SCREENSAVER_TEST_FUNC_ENTRY("SnsrOledAnalogClockContainer::SnsrOledAnalogClockContainer")

    bool ok(false);

    qDebug() << gOledAnalogLayoutDocml;

    // load oled analog clock

    mDocumentObjects = mDocumentLoader.load(gOledAnalogLayoutDocml, &ok);

    Q_ASSERT_X(ok, gOledAnalogLayoutDocml, "Invalid DocML file.");

    if (ok) {

        mMainView = mDocumentLoader.findWidget(gMainViewName);

        mMainContainer = mDocumentLoader.findWidget(gMainContainerName);

        mClockContainer = mDocumentLoader.findWidget(gClockContainerName);

        mOledClockWidget = qobject_cast<SnsrOledClockWidget *>(

              mDocumentLoader.findWidget(gOledAnalogClockWidgetName));

        mDateLabel = qobject_cast<HbLabel *>(

              mDocumentLoader.findWidget(gDateLabelName));

        mIndicatorWidget = qobject_cast<SnsrIndicatorWidget *>(

              mDocumentLoader.findWidget(gIndicatorWidgetName));

        Q_ASSERT_X(

                mMainView && mMainContainer && mClockContainer

                && mOledClockWidget && mDateLabel && mIndicatorWidget,

                gOledAnalogLayoutDocml, "Objects not found in DocML file."

                );

        mIndicatorWidget->setLayoutType(SnsrIndicatorWidget::IndicatorsCentered);

        mBackgroundContainerLayout->addItem(mMainView);

    }

    SCREENSAVER_TEST_FUNC_EXIT("SnsrOledAnalogClockContainer::SnsrOledAnalogClockContainer")

}

/*!

    Destructs the class.

 */

SnsrOledAnalogClockContainer::~SnsrOledAnalogClockContainer()

{

    //mOledClockWidget etc - deleted by the parent

}

/*!

    Updates OLED analog clock widget position.

 */

void SnsrOledAnalogClockContainer::updatePosition()

{

    QSizeF containerSize = mMainContainer->size();

    // Container must have a valid size to enable calculating the 

    // destination position for the clock.

    if ( containerSize.width() > 0 && containerSize.height() > 0 ) {

        containerSize -= mClockContainer->boundingRect().size();

        QRectF containerRect( mMainContainer->pos(), containerSize );

        if ( mInitialize ) {

            QPointF clockPos = nextRandomPosition( mClockContainer->pos(), mDestPosition, containerRect );

            mClockContainer->setPos( clockPos );

        }

        else {

            mDestPosition = randomPosition( containerRect );

            mInitialize = true;

        }

    }

}

/*!

    Updates displayed time.

 */

void SnsrOledAnalogClockContainer::update()

{

    SCREENSAVER_TEST_FUNC_ENTRY("SnsrOledAnalogClockContainer::update")

    // time

    mOledClockWidget->tick();

    // date

    if (mCurrentOrientation == Qt::Vertical) {

        mDateLabel->setPlainText(

            HbExtendedLocale().format(QDate::currentDate(), gDateFormatVerticalStr)

        );

    } else {

        mDateLabel->setPlainText(

            HbExtendedLocale().format(QDate::currentDate(), gDateFormatHorizontalStr)

        );

    }

    // position

    updatePosition();

    // TODO: Currently, both time and position are updated 10 times per second.

    // These should happen only once per minute in the power save mode.

    SCREENSAVER_TEST_FUNC_EXIT("SnsrOledAnalogClockContainer::update")

}

/*!

    Changes screensaver layout basing on orientation changes.

    \param orientation Current orientation.

 */

void SnsrOledAnalogClockContainer::changeLayout(Qt::Orientation orientation)

{

    SCREENSAVER_TEST_FUNC_ENTRY("SnsrOledAnalogClockContainer::changeLayout")

    bool ok(false);

    if (mCurrentOrientation != orientation) {

        mCurrentOrientation = orientation;

        // hide controls to avoid screen flickering

        mMainView->hide();

        QString sectionToLoad("");

        if (mCurrentOrientation == Qt::Horizontal) {

            sectionToLoad = gLandscapeSectionName;

        }

        qDebug() << "loading: " << gOledAnalogLayoutDocml << ", section: " << sectionToLoad;

        mDocumentLoader.load(gOledAnalogLayoutDocml, sectionToLoad, &ok);

        Q_ASSERT_X(ok, gOledAnalogLayoutDocml, "Invalid section in DocML file.");

        // disconnect container from parent layout,

        // connected container resets its position to the one defined in docml

        // after label text updates

        mClockContainer->setParentLayoutItem(0);

        update();

        // view is rebuilt and ready to show

        mMainView->show();

    }

    // update anyway - this is needed in situations when screensaver goes to

    // foreground but layout change did not occur

    if (!ok) {

        update();

    }

    SCREENSAVER_TEST_FUNC_EXIT("SnsrOledAnalogClockContainer::changeLayout")

}

int SnsrOledAnalogClockContainer::updateIntervalInMilliseconds()

{

    return 60*1000;

}

// end of file