/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: openBossa - INdT (renato.chencarek@openbossa.org)
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, 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.
**
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** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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** If you have questions regarding the use of this file, please contact
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****************************************************************************/

#ifndef MODEL_H
#define MODEL_H

#include <QObject>
#include <QHash>
#include <QVariant>


class AbstractModel : public QObject
{
    Q_OBJECT

public:
    AbstractModel(QObject *parent = 0);

    virtual int count() const = 0;

    virtual QVariant data(int index, const QString &role) const = 0;

signals:
    void updated();

    void itemAdded(int index);
    void itemChanged(int index);
    void itemRemoved(int index);
    void itemMoved(int oldIndex, int newIndex);
};


class StandardModel : public AbstractModel
{
    Q_OBJECT

public:
    StandardModel(QObject *parent = 0);

    void clear();

    int count() const;

    void append(const QHash<QString, QVariant> &values);

    void insert(int index, const QHash<QString, QVariant> &values);

    void remove(int index);

    void move(int from, int to);

    QVariant data(int index, const QString &role) const;

    void setData(int index, const QString &role, const QVariant &value);

    void setData(int index, const QHash<QString, QVariant> &values);

private:
    QList<QHash<QString, QVariant> > m_items;
};

#endif