/*

* 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:

*

*/

#ifndef ENGINEWRAPPER_H

#define ENGINEWRAPPER_H

#include "perfmon_engine.h"

#include <QObject>

#include <QColor>

#include <QList>

#include <QVariant>

struct SampleData

{

    qint64 mFree;

    qint64 mSize;

    qint64 mTimeFromStart;

};

class SampleEntry

{

public:

    SampleEntry(const TSampleEntry& sampleEntry) : mEntry(&sampleEntry) {}

    QString description() const { return QString((QChar*)mEntry->iDescription.Ptr(), mEntry->iDescription.Length()); }

    QString unitShort() const { return QString((QChar*)mEntry->iUnitTypeShort.Ptr(), mEntry->iUnitTypeShort.Length()); }

    QString unitLong() const { return QString((QChar*)mEntry->iUnitTypeLong.Ptr(), mEntry->iUnitTypeLong.Length()); }

    int driveNumber() const { return mEntry->iDriveNumber; }

    QColor graphColor() const { return QColor(mEntry->iGraphColor.Red(), mEntry->iGraphColor.Green(), mEntry->iGraphColor.Blue()); }

    int sampleCount() const { return mEntry->iSampleDataArray->Count(); }

    inline const SampleData& sample(int index) const { return reinterpret_cast<SampleData&>(mEntry->iSampleDataArray->At(index)); }

private:

    const TSampleEntry *mEntry;

friend class EngineWrapper;

};

class PerfMonSources

{

public:

    int count() const { return ESourcesLength; }

    int isEnabled (int index) const { return mSources.iSrcEnabled[index]; }

    void setEnabled(int index, bool enabled) { mSources.iSrcEnabled[index] = enabled; }

    QList<QVariant> enabledIndexes() const {

        QList<QVariant> indexes;

        for(int i=0; i<count(); i++) {

            if (isEnabled(i))

                indexes.append(i);

        }

        return indexes;

    }

    void setEnabledIndexes(const QList<QVariant> &indexes)

    {

        for (int i=0; i<count(); i++) {

            setEnabled(i, false);

        }

        foreach (const QVariant& index, indexes) {

        	setEnabled(index.toInt(), true);

        }

    }

private:

    PerfMonSources(TPerfMonSources &sources) : mSources(sources) {}

    friend class PerfMonSettings;

private:

    TPerfMonSources &mSources;

};

class PerfMonSettings

{

public:

    int heartBeat() const { return mSettings.iHeartBeat; }

    int maxSamples() const { return mSettings.iMaxSamples; }

    int priority() const { return mSettings.iPriority; }

    int cpuMode() const { return mSettings.iCPUMode; }

    bool keepBacklightOn() const { return mSettings.iKeepBacklightOn; }

    int dataPopupVisibility() const { return mSettings.iDataPopupVisibility; }

    int dataPopupLocation() const { return mSettings.iDataPopupLocation; }

    PerfMonSources &dataPopupSources() { return mDataPopupSources; }

    const PerfMonSources &dataPopupSources() const { return mDataPopupSources; }

    int graphVerticalBarPeriod() const { return mSettings.iGraphsVerticalBarPeriod; }

    PerfMonSources &graphSources() { return mGraphSources; }

    const PerfMonSources &graphSources() const { return mGraphSources; }

    int loggingMode() const { return mSettings.iLoggingMode; }

    QString loggingFilePath() const {

        return QString((QChar*)mSettings.iLoggingFilePath.Ptr(),

                       mSettings.iLoggingFilePath.Length());

    }

    PerfMonSources &loggingSources() { return mLogSources; }

    const PerfMonSources &loggingSources() const { return mLogSources; }

    bool loggingEnabled() { return mSettings.iLoggingEnabled; }

    void setHeartBeat(int heartBeat) { mSettings.iHeartBeat = heartBeat; }

    void setMaxSamples(int maxSamples) { mSettings.iMaxSamples = maxSamples; }

    void setPriority(int priority) { mSettings.iPriority = priority; }

    void setCpuMode(int cpuMode) { mSettings.iCPUMode = cpuMode; }

    void setKeepBacklightOn(bool backlightOn) const { mSettings.iKeepBacklightOn = backlightOn; }

    void setDataPopupVisibility(int visibility) { mSettings.iDataPopupVisibility = visibility; }

    void setDataPopupLocation(int location) { mSettings.iDataPopupLocation = location; }

    void setGraphVerticalBarPeriod(int period) { mSettings.iGraphsVerticalBarPeriod = period; }

    void setLoggingMode(int mode) { mSettings.iLoggingMode = mode; }

    void setLoggingFilePath(const QString& filePath) { mSettings.iLoggingFilePath = filePath.utf16(); }

private:

    // only EngineWrapper can create Settings instance

    PerfMonSettings(TPerfMonSettings &settings) :

            mSettings(settings),

            mDataPopupSources(settings.iDataPopupSources),

            mGraphSources(settings.iGraphsSources),

            mLogSources(settings.iLoggingSources)

    {}

    friend class EngineWrapper;

private:

    TPerfMonSettings &mSettings;

    PerfMonSources mDataPopupSources;

    PerfMonSources mGraphSources;

    PerfMonSources mLogSources;

};

/**

 * class that is used for communicating between Symbian and Qt code.

 */

class EngineWrapper : public QObject, public CPerfMonEngine

 {

    Q_OBJECT

public:

    /**

     * Constructor

     */

    EngineWrapper();

    /**

     * Destructor

     */

    ~EngineWrapper();

public:

    const QList<SampleEntry>& sampleEntries() const { return mEntries; }

    PerfMonSettings &settings() { return mSettings; }

    const PerfMonSettings &settings() const { return mSettings; }

public slots:

    bool updateSettings();

    bool initialize();

    void finalize();

    void setLoggingEnabled(bool enabled);

signals:

    void samplesUpdated();

    void settingsUpdated();

protected:

    void SendDrawEventToContainersL();

private:

    QList<SampleEntry> mEntries;

    void createSampleEntriesArray();

    PerfMonSettings mSettings;

};

#endif //ENGINEWRAPPER_H