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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
** ** This file is part of the tools applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.

#ifndef QApplicationArgumentParser_H
#define QApplicationArgumentParser_H

#include <QtCore/QVariant> /* Needed, because we can't forward declare QVariantList. */

QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE

class QApplicationArgument;
class QApplicationArgumentParserPrivate;
class QStringList;
template<typename A, typename B> struct QPair;
template<typename T> class QList;
template<typename Value> class QList;

class QApplicationArgumentParser
{
public:
    enum ExitCode
    {
        Success = 0,
        ParseError = 1
    };

    QApplicationArgumentParser(int argc, char **argv);
    QApplicationArgumentParser(const QStringList &input);
    virtual ~QApplicationArgumentParser();
    void addArgument(const QApplicationArgument &argument);
    void setDeclaredArguments(const QList<QApplicationArgument> &arguments);
    QList<QApplicationArgument> declaredArguments() const;

    int count(const QApplicationArgument &argument) const;
    bool has(const QApplicationArgument &argument) const;

    virtual bool parse();
    ExitCode exitCode() const;
    QVariant value(const QApplicationArgument &argument) const;
    QVariantList values(const QApplicationArgument &argument) const;
    void setApplicationDescription(const QString &description);
    void setApplicationVersion(const QString &version);
    virtual void message(const QString &message) const;

protected:
    void setExitCode(ExitCode code);
    void setUsedArguments(const QList<QPair<QApplicationArgument, QVariant> > &arguments);
    QList<QPair<QApplicationArgument, QVariant> > usedArguments() const;
    QStringList input() const;
    virtual QVariant convertToValue(const QApplicationArgument &argument,
                                    const QString &value) const;
    virtual QString typeToName(const QApplicationArgument &argument) const;
    virtual QVariant defaultValue(const QApplicationArgument &argument) const;

private:
    friend class QApplicationArgumentParserPrivate;
    QApplicationArgumentParserPrivate *d;
    Q_DISABLE_COPY(QApplicationArgumentParser)
};

QT_END_NAMESPACE
QT_END_HEADER
#endif