/*

 * 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:

 *     The source file of the data list model of file manager

 */

#include "fmdatalistmodel.h"

FmDataListModel::FmDataListModel( QObject *parent )

    : QAbstractListModel( parent )

{

}

int FmDataListModel::rowCount( const QModelIndex &parent ) const

{

    if (parent.isValid())

        return 0;

    return mDisplayLst.count();

}

QVariant FmDataListModel::data( const QModelIndex &index, int role ) const

{

    if ( index.row() < 0 || index.row() >= mDisplayLst.size() )

        return QVariant();

    if ( role == Qt::DisplayRole || role == Qt::EditRole )

        return mDisplayLst.at( index.row() );

    if ( role == Qt::UserRole )

        return mUserDataLst.at( index.row() );

    return QVariant();

}

Qt::ItemFlags FmDataListModel::flags( const QModelIndex &index ) const

{

    if ( !index.isValid() )

        return QAbstractItemModel::flags( index ) | Qt::ItemIsDropEnabled;

    return QAbstractItemModel::flags( index ) | Qt::ItemIsEditable;

}

bool FmDataListModel::setData( const QModelIndex &index, const QVariant &value, int role )

{

    if ( index.row() >= 0 && index.row() < mDisplayLst.size()

        && ( role == Qt::EditRole || role == Qt::DisplayRole ) ){

        mDisplayLst.replace( index.row(), value.toString() );

        emit dataChanged( index, index );

        return true;

    }

    if ( index.row() >= 0 && index.row() < mUserDataLst.size()

        && ( role == Qt::UserRole ) ) {

        mUserDataLst.replace( index.row(), value.toString() );

        emit dataChanged( index, index );

        return true;

    }

    return false;

}

bool FmDataListModel::insertRows( int row, int count, const QModelIndex &parent )

{

    if ( count < 1 || row < 0 || row > rowCount( parent ) )

        return false;

    beginInsertRows( QModelIndex(), row, row + count - 1 );

    for ( int r = 0; r < count; ++r )

    {

        mDisplayLst.insert( row, QString() );

        mUserDataLst.insert( row, QString() );

    }

    endInsertRows();

    return true;

}

bool FmDataListModel::removeRows( int row, int count, const QModelIndex &parent )

{

    if ( count <= 0 || row < 0 || ( row + count ) > rowCount( parent ) )

        return false;

    beginRemoveRows( QModelIndex(), row, row + count - 1 );

    for ( int r = 0; r < count; ++r )

    {

        mDisplayLst.removeAt( row );

        mUserDataLst.removeAt( row );

    }

    endRemoveRows();

    return true;

}