/****************************************************************************

**

** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (developer.feedback@nokia.com)

**

** This file is part of the HbWidgets module of the UI Extensions for Mobile.

**

** GNU Lesser General Public License Usage

** This file may be used under the terms of the GNU Lesser General Public

** License version 2.1 as published by the Free Software Foundation and

** appearing in the file LICENSE.LGPL included in the packaging of this file.

** Please review the following information to ensure the GNU Lesser General

** Public License version 2.1 requirements will be met:

** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at developer.feedback@nokia.com.

**

****************************************************************************/

#include "hblistwidgetitem_p.h"

#include "hblistmodel_p.h"

#include <hblistwidgetitem.h>

#include <QVariant>

/*

    HbListWidgetItemPrivate in a internal class, which implements data container 

    for HblistWidgetItems and HblistWidget. 

*/

HbListWidgetItemPrivate::HbListWidgetItemPrivate(

        HbListWidgetItem *itemWidget) :

    mItem(itemWidget),

    mModel(0),

    id(0),

    flags(Qt::ItemIsSelectable|Qt::ItemIsEnabled)

{

}

HbListWidgetItemPrivate::~HbListWidgetItemPrivate()

{

}

void HbListWidgetItemPrivate::setData(const QVariant &value, int role, int index)

{

    QVector<HbWidgetItemData>::iterator it;

    for (it = mValues.begin(); it != mValues.end(); ++it) {

        if ((*it).role == role) {

            QVariantList list;

            if ((*it).value.canConvert<QVariantList>()) {

                list = (*it).value.toList();

            } else {

                list.append((*it).value);

            }

            if (index < list.count()) {

                // Existing value -> replace if different

                if (list.at(index) == value)  

                    return;

                list.replace(index, value);

            } else {

                // New value -> grow the list if needed

                while (list.count() < index) {

                    list.append(QVariant());

                }

                list.append(value);

            }

            (*it).value = list;

            return;

        }

    }

    // role is not present yet

    QVariantList list;

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

        list.append(QVariant());

    }

    list.append(value);

    mValues.append(HbWidgetItemData(role, list));

}

void HbListWidgetItemPrivate::setData(const QVariant &value, int role)

{

    //Note: no more call to itemChanged, caller is responsible for calling it

    role = (role == Qt::EditRole) ? Qt::DisplayRole : role;

    QVector<HbWidgetItemData>::iterator it;

    for (it = mValues.begin(); it != mValues.end(); ++it) {

        if ((*it).role == role) {

            (*it).value = value;

            return;

        }

    }

    mValues.append(HbWidgetItemData(role, value));

}

QVariant HbListWidgetItemPrivate::data(int role, int index) const

{

    QVariant value = data(role);

    if (value.canConvert<QVariantList>()) {

        QVariantList list = value.toList();

        return list.value(index);

    } else if (index == 0) {

        return value;

    } else {

        return QVariant();

    }

}

/*

    Returns the item's data for the given \a role, or an invalid

    QVariant if there is no data for the role.

    \note The default implementation treats Qt::EditRole and Qt::DisplayRole

    as referring to the same data.  

*/

QVariant HbListWidgetItemPrivate::data(int role) const

{

    role = (role == Qt::EditRole) ? Qt::DisplayRole : role;

    QVector<HbWidgetItemData>::const_iterator it;

    for (it = mValues.begin(); it != mValues.end(); ++it) {

        if ((*it).role == role) {

            return (*it).value;

        }

    }

    if (role == Hb::ItemTypeRole) {

        return Hb::StandardItem;

    }

    return QVariant();

}