/*

* Copyright (c) 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: Attachment list item widget

*

*/

#include "nmailuiwidgetsheaders.h"

static const QString FILE_PATH_WIDGETML = ":nmattachmentlistitem.widgetml";

static const QString FILE_PATH_CSS = ":nmattachmentlistitem.css";

static const int PROGRESSBAR_MIN = 0; 

static const int PROGRESSBAR_MAX = 100;

static const int PROGRESSBAR_HIDE_COUNTDOWN = 500;

static const int LONGPRESS_TIMER = 2000;

// Hardcoded file size length. Maximum (999.9 Mb) fits into size field.

static const int FILE_SIZE_FIELD_LENGTH = 120;

/*!

 @nmailuiwidgets

 \class NmAttachmentListItem

 \brief The NmAttachmentListItem widget provides for showing a single attachment with file size and

        download progress in the attachment list.

 */

/*!

    Constructs a new NmAttachmentListItem with \a parent.

 */

NmAttachmentListItem::NmAttachmentListItem(QGraphicsItem *parent)

    : HbWidget( parent ),

      mFileNameText(NULL),

      mFileSizeText(NULL),

      mProgressBar(NULL),

      mTimer(NULL),

      mButtonPressed(false),

      mLongPressedPoint(0,0)

{

    init( );

}

/*!

    Setter for items text color override. This fucntion can be used

    if theme background is not used and text needs to be shown in diferent color.

 */

void NmAttachmentListItem::setTextColor(const QColor color)

{

    mTextColor=color;

}

/*!

    Destructor.

 */

NmAttachmentListItem::~NmAttachmentListItem( )

{

    HbStyleLoader::unregisterFilePath(FILE_PATH_WIDGETML);

    HbStyleLoader::unregisterFilePath(FILE_PATH_CSS);

    delete mTimer;

    mTimer = NULL; 

}

/*!

    Set the text to be displayed in the file name item.

 */

void NmAttachmentListItem::setFileNameText(const QString &fileName)

{

    if (mFileNameText){

        if (mTextColor.isValid()){

            mFileNameText->setTextColor(mTextColor);

        }

        mFileNameText->setTextWrapping(Hb::TextNoWrap);

        mFileNameText->setText(fileName);    

    }

}

/*!

    Set the text to be displayed in the file size item

 */

void NmAttachmentListItem::setFileSizeText(const QString &fileSize)

{

    if (mFileSizeText){

        if (mTextColor.isValid()){

            mFileSizeText->setTextColor(mTextColor);

        }

        mFileSizeText->setTextWrapping(Hb::TextNoWrap);

        mFileSizeText->setText(fileSize);

    }

}

/*!

    Set the length of the filename field.

 */

void NmAttachmentListItem::resetFileNameLength(Qt::Orientation orientation)

{

	QSizeF reso = screenSize(orientation);

	if (orientation == Qt::Horizontal) {

        mFileNameText->setPreferredWidth(reso.width() / 2 - FILE_SIZE_FIELD_LENGTH);

	}

	else {		

        mFileNameText->setPreferredWidth(reso.width() - FILE_SIZE_FIELD_LENGTH);

	}

}

/*!

    Set the download progress bar value (0-100)%, if value is 0 progress bar is hidden

 */

void NmAttachmentListItem::setProgressBarValue(const int value)

{

    //first check if value is 0 or below -> hide progressbar

    if ( 0 >= value ){

        removeProgressBar();

        return;

    }

    if ( !mProgressBar ){

        mProgressBar = new HbProgressBar(this); 

        mProgressBar->setObjectName("attachmentlistitem_progress");

        mProgressBar->setRange(PROGRESSBAR_MIN,PROGRESSBAR_MAX);

        HbStyle::setItemName( mProgressBar, "progressbar" );

        repolish();

    }

    mProgressBar->setProgressValue(value);

    //start hiding count down

    if(PROGRESSBAR_MAX <= value){

        hideProgressBar();

    }

}

/*!

    Get the download progress bar value

*/

int NmAttachmentListItem::progressBarValue() const

{

    int ret = 0;

    if ( mProgressBar ){

        ret = mProgressBar->progressValue();

    }

    return ret;

}

/*!

    Hides progress bar, used if download is cancelled before 100 precent is reached

*/

void NmAttachmentListItem::hideProgressBar()

{

    QTimer::singleShot(PROGRESSBAR_HIDE_COUNTDOWN,this, SLOT(removeProgressBar()));

}

/*!

    Initialize

*/

void NmAttachmentListItem::init( )

{

    constructUi();

    //set default values

    setFlag(QGraphicsItem::ItemIsFocusable);

    setFlag(QGraphicsItem::ItemIsSelectable);

    //set temporary longpress timer

    mTimer = new QTimer(this);

    mTimer->setSingleShot(true);

    connect(mTimer, SIGNAL(timeout()), this, SLOT(longPressedActivated()));

}

/*!

    Constructs the UI, sets style itemnames etc.

*/

void NmAttachmentListItem::constructUi()

{

    //construct default ui.    

    HbStyleLoader::registerFilePath(FILE_PATH_WIDGETML);

    HbStyleLoader::registerFilePath(FILE_PATH_CSS);

    mFileNameText = new HbTextItem(this); 

    mFileNameText->setObjectName("nmattachmentlistitem_filenametext");

    HbStyle::setItemName( mFileNameText, "filename" );    

    mFileNameText->setElideMode(Qt::ElideRight);

    mFileSizeText = new HbTextItem(this); 

    mFileSizeText->setObjectName("nmattachmentlistitem_filenamesize");

    HbStyle::setItemName( mFileSizeText, "filesize" );

    mFileSizeText->setElideMode(Qt::ElideNone);

}

/*!

    \reimp

 */

void NmAttachmentListItem::mousePressEvent( QGraphicsSceneMouseEvent *event )

{

    NMLOG("NmAttachmentListItem::mousePressEvent");

    mButtonPressed = true;

    mLongPressedPoint = event->scenePos();

    if(mTimer){

        mTimer->start(LONGPRESS_TIMER);        

    }

}

/*!

    \reimp

 */

void NmAttachmentListItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)

{

    Q_UNUSED(event);

    NMLOG("NmAttachmentListItem::mouseReleasedEvent");

    if ( mTimer && mButtonPressed ){

        emit itemActivated();

        mButtonPressed = false;

        mTimer->stop();

    }

}

/*!

    Hides the download progress bar

 */

void NmAttachmentListItem::removeProgressBar()

{

	if ( mProgressBar ){

	    HbStyle::setItemName( mProgressBar, "" );

	    mProgressBar->deleteLater();

	    mProgressBar = 0;

	    repolish();

	}

}

/*!

 */

void NmAttachmentListItem::longPressedActivated()

{

    //check first if button is not released already

    if ( mButtonPressed ){

        NMLOG("NmAttachmentListItem::longPressedActivated");

        emit itemLongPressed(mLongPressedPoint);

        mButtonPressed = false;

    }

}

/*!

    This function returns screen size depending on the orientation.

    Function is copied from NmApplication.

 */

QSize NmAttachmentListItem::screenSize(Qt::Orientation orientation)

{

    QSize ret(0,0);

    HbDeviceProfile currentP = HbDeviceProfile::current();

    HbDeviceProfile altP(currentP.alternateProfileName());

    QSize curPSize = currentP.logicalSize();

    QSize altPSize = altP.logicalSize();

    if (orientation == Qt::Horizontal) {

        // Get wide profile size in landscape

        if (curPSize.width() > altPSize.width()) {

            ret = curPSize;

        }

        else{

            ret = altPSize;

        }

    }

    else {

        // Get narrow profile size in portrait

        if (curPSize.width() < altPSize.width()) {

            ret = curPSize;

        }

        else{

            ret = altPSize;

        }

    }

    return ret;

}