/*

* 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:

*

*/

#include "cntimageeditorview.h"

#include "cntimageutility.h"

#include <hblabel.h>

#include <xqaiwrequest.h>

#include <thumbnailmanager_qt.h>

#include <hbaction.h>

#include <hbview.h>

#include <hbmainwindow.h>

#include <hblistview.h>

#include <hblistviewitem.h>

#include <hbframebackground.h>

#include <QStandardItemModel>

const char *CNT_IMAGE_XML = ":/xml/contacts_if.docml";

/*!

Constructor

*/

CntImageEditorView::CntImageEditorView() :

        mContact(NULL),

        mAvatar(NULL),

        mImageLabel(NULL),

        mRequest(NULL),

        mViewManager(NULL),

        mListView(NULL),

        mModel(NULL)

{

    bool ok = false;

    mDocumentLoader.load(CNT_IMAGE_XML, &ok);

    if (ok)

    {

        mView = static_cast<HbView*>(mDocumentLoader.findWidget(QString("view")));

    }

    else

    {

        qFatal("Unable to read :/xml/contacts_if.docml");

    }

    //back button

    mSoftkey = new HbAction(Hb::BackNaviAction, mView);

    connect(mSoftkey, SIGNAL(triggered()), this, SLOT(showPreviousView()));

    // menu action

    mRemoveImage = static_cast<HbAction*>(mDocumentLoader.findObject("cnt:removeimage"));

    connect(mRemoveImage, SIGNAL(triggered()), this, SLOT(removeImage()));

    // thumbnail manager

    mThumbnailManager = new ThumbnailManager(this);

    mThumbnailManager->setMode(ThumbnailManager::Default);

    mThumbnailManager->setQualityPreference(ThumbnailManager::OptimizeForQuality);

    mThumbnailManager->setThumbnailSize(ThumbnailManager::ThumbnailLarge);

    connect( mThumbnailManager, SIGNAL(thumbnailReady(QPixmap, void*, int, int)),

        this, SLOT(thumbnailReady(QPixmap, void*, int, int)) );

}

/*!

Destructor

*/

CntImageEditorView::~CntImageEditorView()

{

    mView->deleteLater();

    delete mAvatar;

    mAvatar = 0;

    delete mContact;

    mContact = 0;

    delete mRequest;

    mRequest = 0;

    delete mRemoveImage;

    mRemoveImage = 0;

    delete mModel;

    mModel = 0;

}

/*!

Called when activating the view

*/

void CntImageEditorView::activate( CntAbstractViewManager* aMgr, const CntViewParameters aArgs )

{

    mViewManager = aMgr;

    mArgs = aArgs;

    if (mView->navigationAction() != mSoftkey)

        mView->setNavigationAction(mSoftkey);

    HbMainWindow* window = mView->mainWindow();

    if ( window )

    {

    connect(window, SIGNAL(orientationChanged(Qt::Orientation)), this, SLOT(setOrientation(Qt::Orientation)));

    setOrientation(window->orientation());

    }

    mContact = new QContact(mArgs.value(ESelectedContact).value<QContact>());

    // set the correct image if the contact already has an image set

    mImageLabel = static_cast<HbLabel*>(mDocumentLoader.findWidget(QString("cnt_image_label")));

    QList<QContactAvatar> details = mContact->details<QContactAvatar>();

    if (details.count() > 0)

        {

        for (int i = 0;i < details.count();i++)

            {

                if (details.at(i).imageUrl().isValid())

                    {

                    mAvatar = new QContactAvatar(details.at(i));

                    mThumbnailManager->getThumbnail(mAvatar->imageUrl().toString());

                    break;

                    }

            }

        }

    else

        {

        mAvatar = new QContactAvatar();

        mRemoveImage->setEnabled(false);

        }

    // set up the list

    mListView = static_cast<HbListView*>(mDocumentLoader.findWidget(QString("cnt_listview")));

    connect(mListView, SIGNAL(activated(const QModelIndex&)), this,

        SLOT(listViewActivated(const QModelIndex&)));

    HbFrameBackground frame;

    frame.setFrameGraphicsName("qtg_fr_list_normal");

    frame.setFrameType(HbFrameDrawer::NinePieces);

    mListView->itemPrototypes().first()->setDefaultFrame(frame);

    mListView->listItemPrototype()->setGraphicsSize(HbListViewItem::LargeIcon);

    mListView->setUniformItemSizes(true);

    mModel = new QStandardItemModel();

    populateModel(mModel);

    mListView->setModel(mModel);

}

void CntImageEditorView::deactivate()

{

}

void CntImageEditorView::populateModel(QStandardItemModel *model)

{

    QStandardItem *newPhoto = new QStandardItem();

    newPhoto->setText(hbTrId("txt_phob_list_take_a_new_photo"));

    newPhoto->setData(HbIcon("qtg_large_camera"), Qt::DecorationRole);

    model->appendRow(newPhoto);

    QStandardItem *fromGallery = new QStandardItem();

    fromGallery->setText(hbTrId("txt_phob_list_chooce_from_gallery"));

    fromGallery->setData(HbIcon("qtg_large_photos"), Qt::DecorationRole);

    model->appendRow(fromGallery);

}

/*!

Open camera and get new image for contact

*/

void CntImageEditorView::openCamera()

{

}

/*!

Open gallery and select image for contact

*/

void CntImageEditorView::openGallery()

{

    if (mRequest)

    {

        delete mRequest;

        mRequest = 0;

    }

    if ( mRequest ) 

    {

        connect(mRequest, SIGNAL(requestOk(const QVariant&)), this, SLOT(handleImageChange(const QVariant&)));

        mRequest->send();

    }

}

/*!

Called when user closes the view

*/

void CntImageEditorView::showPreviousView()

{

    mContact->saveDetail(mAvatar);

    if ( mAvatar->imageUrl().isEmpty())

    {

        mContact->removeDetail(mAvatar);

    }

    QVariant var;

    var.setValue(*mContact);

    mArgs.insert(ESelectedContact, var);

    mArgs.insert(ESelectedGroupContact, var);

    mArgs.insert(ECustomParam, viewId());

    mViewManager->back( mArgs );

}

void CntImageEditorView::removeImage()

{

    QString filePath=mAvatar->imageUrl().toString();

    if(!filePath.isEmpty())

    {

        // Check if image removable.

        CntImageUtility imageUtility;

        if(imageUtility.isImageRemovable(filePath))

        {

            imageUtility.removeImage(filePath);

        }

        mAvatar->setImageUrl(QUrl());

        mImageLabel->clear();

        mImageLabel->setIcon(HbIcon("qtg_large_add_contact_picture"));

        mRemoveImage->setEnabled(false);

    }

}

/*!

Set the selected image as new QContactAvatar::SubTypeImage

*/

void CntImageEditorView::handleImageChange(const QVariant &value)

{

    if(value.canConvert<QString>())

    {

        CntImageUtility imageUtility;

        if(imageUtility.isMassStorageAvailable())

        {

            /* Copy image and create thumbnail

             * When contact image removed only copy is deleted

             */

            QString imagepath;

            if(imageUtility.createImage(value.toString(),imagepath))

            {

                // If image already assigned, delete

                QString filePath=mAvatar->imageUrl().toString();

                if(!filePath.isEmpty()

                   && imageUtility.isImageRemovable(filePath))

                    imageUtility.removeImage(filePath);

                mAvatar->setImageUrl(QUrl(imagepath));

                mThumbnailManager->getThumbnail(imagepath);

                mRemoveImage->setEnabled(true);

            }

        }

        else

        {

            // No mass memory, use the orginal image

            mAvatar->setImageUrl(QUrl(value.toString()));

            mThumbnailManager->getThumbnail(value.toString());

            mRemoveImage->setEnabled(true);

        }

    }

}

void CntImageEditorView::thumbnailReady(const QPixmap& pixmap, void *data, int id, int error)

{

    Q_UNUSED(data);

    Q_UNUSED(id);

    if (!error)

    {

        QIcon qicon(pixmap);

        HbIcon icon(qicon);

        mImageLabel->clear();

        mImageLabel->setIcon(icon);

    }

}

void CntImageEditorView::setOrientation(Qt::Orientation orientation)

{

    if (orientation == Qt::Vertical) 

    {

        // reading "portrait" section

        mDocumentLoader.load(CNT_IMAGE_XML, "portrait");

    } 

    else 

    {

        // reading "landscape" section

        mDocumentLoader.load(CNT_IMAGE_XML, "landscape");

    }

}

/*!

Figure out which item was selected according to row number

*/

void CntImageEditorView::listViewActivated(const QModelIndex &index)

{

    if (index.isValid())

    {

        int row = index.row();

        switch(row)

        {

        case 0: // first item is always "take photo"

            openCamera();

            break;

        case 1: // and the second one is always "choose from gallery"

            openGallery();

            break;

        default:

            break;

        }

    }

}