/*

* 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:

*

*/

#include "valuedatacontainer.h"

#include "enginewrapper.h"

#include <QGraphicsLinearLayout>

#include <QPalette>

#include <QPainter>

#include <HbColorScheme>

const int leftMargin = 2;

ValueDataContainer::ValueDataContainer(const EngineWrapper& engine, QGraphicsItem *parent) :

    DataContainer(engine, parent)

{

    HbFontSpec spec(HbFontSpec::Secondary);

    mFont = spec.font();

}

void ValueDataContainer::paint (QPainter *painter,

    const QStyleOptionGraphicsItem *option,

    QWidget *widget)

{

    Q_UNUSED(option);

    Q_UNUSED(widget);

    // set proper font and prepare font metrics for text height calculation

    painter->setFont(mFont);

    QColor col = HbColorScheme::color("qtc_textedit_normal");

    if(col.isValid())

        painter->setPen(col);

    QFontMetricsF metrics(mFont);

    QList<SampleEntry> entries = engine().sampleEntries();

    int c = 1;

    // CPUs

    for (int i = const_cast<EngineWrapper&>( engine() ).CPU0PositionInSamples();

            i < const_cast<EngineWrapper&>( engine() ).CPU0PositionInSamples() +

                const_cast<EngineWrapper&>( engine() ).AmountOfCPUs(); i++)

    {

        // check if data available

        const SampleEntry &entry = entries.at(i);

        if (entry.sampleCount() == 0)

            continue;

        const SampleData &sample = entry.sample(0);

        double perc = sample.mSize > 0 ?

                      100. - 100. * sample.mFree / sample.mSize : 0;

        QString text = tr("%1 %2%").arg(entry.description()).

                       arg(perc, 0, 'f', 0);

        painter->drawText(QPointF(leftMargin, c * metrics.height()), text);

        c++;

    }

    // RAM and drives

    for (int i = const_cast<EngineWrapper&>( engine() ).RAMPositionInSamples();

            i < const_cast<EngineWrapper&>( engine() ).PowerPositionInSamples(); i++)

    {

        // check if data available

        const SampleEntry &entry = entries.at(i);

        if (entry.sampleCount() == 0)

            continue;

        const SampleData &sample = entry.sample(0);

        if (sample.mSize > 0)

        {

            // RAM and Drives

            QString text = tr("%1 free %L2%3").arg(entry.description()).

                           arg(sample.mFree).arg(entry.unitShort());

            painter->drawText(QPointF(leftMargin, c * metrics.height()), text);

            c++;

            text = tr("%1 size %L2%3").arg(entry.description()).

                   arg(sample.mSize).arg(entry.unitShort());

            painter->drawText(QPointF(leftMargin, c * metrics.height()), text);

            c++;

        }

    }

    // Power sample

    // check if data available

    const SampleEntry &entry = entries.at(const_cast<EngineWrapper&>( engine() ).PowerPositionInSamples());

    if (entry.sampleCount() > 0)

    {

        const SampleData &sample = entry.sample(0);

        if (sample.mSize > 0)

        {

            QString text = tr("%1 %L2%3").arg(entry.description()).

                    arg(sample.mSize - sample.mFree).arg(entry.unitShort());

            painter->drawText(QPointF(leftMargin, c * metrics.height()), text);

            c++;

        }

    }

}