/*

 * 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 "infowidgetpreferences.h"

#include "infowidgetlogging.h"

/*!

  \class InfoWidgetPreferences

  \brief Preference store for widget  

         display etc. options   

*/

/*!

    InfoWidgetPreferences::InfoWidgetPreferences() 

*/

InfoWidgetPreferences::InfoWidgetPreferences(QObject *parent): 

    QObject(parent)

{

    DPRINT;

}

/*!

    InfoWidgetPreferences::~InfoWidgetPreferences() 

*/

InfoWidgetPreferences::~InfoWidgetPreferences()

{

    DPRINT;

}

/*!

    InfoWidgetPreferences::storePreferences()

    Store acceptable preference set  

*/

bool InfoWidgetPreferences::storePreferences()

{

    DPRINT;

    bool changed(false); 

    if (validate() && 

        m_validatedOptions != m_options){

            m_validatedOptions = m_options;

            changed = true;

            emit preferencesChanged(m_validatedOptions);

        }

    else if (visibleItemCount() <= 0) { 

        DPRINT << ": invalid options, restoring initial options";

        restorePreferences();

    }

    return changed; 

}

/*!

    InfoWidgetPreferences::restorePreferences()

    Restores last acceptable preference set 

*/

void InfoWidgetPreferences::restorePreferences()

{

    DPRINT;

    m_options = m_validatedOptions; 

}

/*!

    InfoWidgetPreferences::preference() 

*/

QString InfoWidgetPreferences::preference(Option preferenceId) const

{

    DPRINT << ": preference id: " << static_cast<int>(preferenceId); 

    QString preferenceString;

    if (m_options.testFlag(preferenceId)) {

        preferenceString = DISPLAY_SETTING_ON; 

    } else {

        preferenceString = DISPLAY_SETTING_OFF;  

    } 

    return preferenceString;

}

/*!

    InfoWidgetPreferences::isPreferenceSet()

*/

bool InfoWidgetPreferences::isPreferenceSet(Option preferenceId) const

{

    DPRINT << ": preference id: " << static_cast<int>(preferenceId); 

    return m_options.testFlag(preferenceId); 

}

/*!

    InfoWidgetPreferences::preferences()

*/

InfoWidgetPreferences::Options InfoWidgetPreferences::preferences() const

{

    return m_options; 

}

/*!

    InfoWidgetPreferences::setPreference() 

*/

void InfoWidgetPreferences::setPreference(Option preferenceId, 

    const QString& preferenceString)

{

    DPRINT << ": preference id: " << static_cast<int>(preferenceId);

    DPRINT << ": preference string: " << preferenceString; 

    DPRINT << ": initial options: " << m_options;

    if (preferenceString.compare(DISPLAY_SETTING_ON) == 0) {

        m_options |= preferenceId; 

    } else {

        m_options &= ~preferenceId;

    }

    DPRINT << ": modified options: " << m_options;

}

/*!

    InfoWidgetPreferences::visibleItemCount() 

*/

int InfoWidgetPreferences::visibleItemCount() 

{

    DPRINT << ": IN";

    int visibleItems = 0;

    if (m_options.testFlag(DisplayHomeZone)){

        visibleItems++; 

    }

    if (m_options.testFlag(DisplayMcn)){

        visibleItems++; 

    }

    if (m_options.testFlag(DisplayActiveLine)){

        visibleItems++; 

    }

    if (m_options.testFlag(DisplaySatText)){

        visibleItems++; 

    }

    if (m_options.testFlag(DisplaySpn)){

        visibleItems++; 

    }

    DPRINT << ": visible item count: " << visibleItems;

    return visibleItems; 

}

/*!

    InfoWidgetPreferences::validate() 

*/

bool InfoWidgetPreferences::validate() 

{

    return visibleItemCount() > 0; 

}

/*!

   InfoWidgetPreferences::preferenceNames()

   Convenience function for getting all preference names

*/

QStringList InfoWidgetPreferences::preferenceNames()

{

    QStringList preferenceList; 

    preferenceList << "spnDisplay" << "homeZoneDisplay" << 

            "activeLineDisplay" << "satDisplay" << "mcnDisplay";

    return preferenceList; 

}

// End of File.