/*

* 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 "iconsview.h"

#include <QGraphicsLinearLayout>

#include <QGraphicsGridLayout>

#include <QStandardItem>

#include <QStandardItemModel>

#include <QSignalMapper>

#include <hblistwidget.h>

#include <hblabel.h>

#include <hbpushbutton.h>

#include <hbinstance.h>

#include <hbapplication.h>

#include <hbactivitymanager.h>

#include <hbmainwindow.h>

#include <QDebug>

#define hbApp qobject_cast<HbApplication*>(qApp)

IconsView::IconsView(QGraphicsItem *parent) : HbView(parent)

{

    setTitle("Activities -Hb Model");

    mModel = new QStandardItemModel(this);

    for (int i=1; i<=8; ++i) {

        addItemToModel(i);

    }

    mList = new HbListView(this);

    mList->setModel(mModel);

    QGraphicsGridLayout *buttonsLayout = new QGraphicsGridLayout();

    HbPushButton *addItemButton = new HbPushButton("Add item");

    connect(addItemButton, SIGNAL(clicked()), this, SLOT(addItem()));

    buttonsLayout->addItem(addItemButton, 0, 0);

    HbPushButton *removeItemButtom = new HbPushButton("Remove item");

    connect(removeItemButtom, SIGNAL(clicked()), this, SLOT(removeItem()));

    buttonsLayout->addItem(removeItemButtom, 0, 1);

    HbPushButton *saveActivityAButton = new HbPushButton("Save State A");

    buttonsLayout->addItem(saveActivityAButton, 1, 0);

    HbPushButton *saveActivityBButton = new HbPushButton("Save State B");

    buttonsLayout->addItem(saveActivityBButton, 1, 1);

    buttonsLayout->setRowFixedHeight(0, 50);

    buttonsLayout->setRowFixedHeight(1, 50);

    QSignalMapper *saveActivityMapper = new QSignalMapper(this);

    saveActivityMapper->setMapping(saveActivityAButton, "State A");

    saveActivityMapper->setMapping(saveActivityBButton, "State B");

    connect(saveActivityAButton, SIGNAL(clicked()), saveActivityMapper, SLOT(map()));

    connect(saveActivityBButton, SIGNAL(clicked()), saveActivityMapper, SLOT(map()));

    connect(saveActivityMapper, SIGNAL(mapped(QString)), this, SLOT(saveActivity(QString)));

    mItemCountLabel = new HbLabel();

    mItemCountLabel->setAlignment(Qt::AlignCenter);

    mItemCountLabel->setMaximumHeight(30);

    updateCountLabel();

    QGraphicsLinearLayout *mainLayout = new QGraphicsLinearLayout(Qt::Vertical, this);

    mainLayout->addItem(mItemCountLabel);

    mainLayout->addItem(mList);

    mainLayout->addItem(buttonsLayout);

    connect(hbApp->activityManager(), SIGNAL(activityRequested(QString)), this, SLOT(loadActivity(QString)));

    bool ok = hbApp->activityManager()->waitActivity();

    if (!ok) {

        //qFatal("Subscribe failed");

    }

    setLayout(mainLayout);

}

IconsView::~IconsView()

{

}

void IconsView::addItemToModel(int number)

{

    QStandardItem *item = new QStandardItem(QIcon(QString(":data\\img%1").arg(number)), QString("Image %1").arg(number));

    mModel->appendRow(item);

}

void IconsView::addItem()

{

    addItemToModel(qrand() % 8 + 1);

    updateCountLabel();

}

void IconsView::removeItem()

{

    if (mModel->rowCount() > 0) {

        mModel->removeRow(mModel->rowCount() - 1, QModelIndex());

    }

    updateCountLabel();

}

void IconsView::updateCountLabel()

{

    mItemCountLabel->setPlainText(QString("List contains %1 items").arg(mModel->rowCount()));

}

QVariant IconsView::generateActivityData()

{

    QByteArray serializedModel;

    {

        QDataStream stream(&serializedModel, QIODevice::WriteOnly | QIODevice::Append);

        for (int row = 0; row < mModel->rowCount(); ++row) {

            stream << *mModel->item(row);

        }

    }

    return serializedModel;

}

void IconsView::saveActivity(const QString &name)

{

    HbMainWindow *mainWindow = hbInstance->allMainWindows().value(0);

    QVariantHash metadata;

    metadata.insert("screenshot", QPixmap::grabWidget(mainWindow, mainWindow->rect()));

    bool ok = hbApp->activityManager()->removeActivity(name);

    if (!ok) {

        //qFatal("Remove failed" );

    }

    ok = hbApp->activityManager()->addActivity(name, generateActivityData(), metadata);

    if (!ok) {

        qFatal("Add failed");

    }

}

void IconsView::loadActivity(const QString &name)

{

    bool ok = hbApp->activityManager()->waitActivity();

    if (!ok) {

        //qFatal("Resubscribe failed");

    }

    QVariant data = hbApp->activityManager()->activityData(name);

    loadActivity(data);

}

void IconsView::loadActivity(const QVariant &data)

{

    mModel->clear();

    QByteArray serializedModel = data.toByteArray();

    {

        QDataStream stream(&serializedModel, QIODevice::ReadOnly);

        while (!stream.atEnd()) {

            QStandardItem *item = new QStandardItem();

            stream >> *item;

            mModel->appendRow(item);

        }

    }

    updateCountLabel();

}